HIGH VOLTAGE GALLIUM NITRIDE VERTICAL PN DIODE | Matter42 Literature
Patent
Atlas literature
Patent
US 12,218,255 B2
HIGH VOLTAGE GALLIUM NITRIDE VERTICAL PN DIODE
Luke Yates, Brendan P. Gunning, Mary H. Crawford, Jeffrey Steinfeldt et al.
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)·Feb. 4, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 is an axisymmetric schematic illustration of an exemplary vertical PN diode with a 4-zone step-etched JTE (not to scale). The JTEs were designed to …
FIG. 2
FIG. 2A is an image of a completed vertical GaN PN diodes with a 2-zone JTE design.
FIG. 3
performance graph
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4
performance graph
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 5
performance graph
FIG. 5A is a graph of forward I-V characteristics of a 1 mm2 device under pulsed conditions. Inset shows forward current on a semi-logarithmic scale.
FIG. 6
performance graph
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 7
performance graph
FIG. 7B is a graph showing extracted carrier con- centration of measured devices in the n-GaN drift layer. A frequency of 1 MHz was used for the CV …
FIG. 8
performance graph
FIG. 8 is a graph showing the temperature dependence of the reverse I-V characteristics of a PN junction diode with an anode area of 0.063 mm2.
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 independent · 9 dependent
1
IndependentGaNGaNGaNGaNhigh voltage gallium nitride vertical PN diode
A high voltage gallium nitride vertical PN diode, comprising: a high-doped n-type gallium nitride substrate or contact layer; a low-doped n-type gallium nitride drift layer epitaxially grown on the gallium nitride substrate, wherein the drift layer is greater than 10 microns in thickness and has a donor concentration of less than 2×1015/cm3; a p-type region comprising one or more p-type layers epitaxially grown on the drift layer, thereby forming a PN junction with the drift layer; an ohmic cathode contact deposited on the high-doped n-type gallium nitride substrate or contact layer; an ohmic anode contact deposited on the p-type region; and a step-etched multi-zone junction termination extension structure laterally surrounding the anode contact in the p-type region.
2
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the low-doped n-type gallium nitride drift layer is grown by metal-organic chemical vapor deposition under compensation doping conditions.
3
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the drift layer is equal to or greater than microns in thickness.
4
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the area of the anode contact is greater than 0.01 mm2.
6
Dependent← claim 1GaNGaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the p-type region comprises a moderately doped p-type gallium nitride layer epitaxially grown on the drift layer and a high-doped p-type gallium nitride layer epitaxially grown on the moderately doped p-type gallium nitride layer.
9
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the step-etched multi-zone junction termi-nation extension structure comprises two or more zones.
10
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the PN diode has an avalanche breakdown voltage of greater than 5 kV in reverse bias. ∗ ∗ ∗ ∗ ∗
Worked examples
Embodiments described in the patent, grouped by the materials and process steps they use.
Large area diode exemplary result
description derived process summary
4 materials1 process step
Large area (1 mm2) vertical GaN PN diode fabricated on bulk GaN substrate, demonstrating 3.5 A forward pulsed current, 8.3 mΩ-cm2 specific on-resistance, and 5.3 kV reverse breakdown. Drift region grown by MOCVD to 50 µm with carrier concentration <1×10¹⁵ cm⁻³. 4-zone step-etched JTE was used.
Small area diode exemplary result
description derived process summary
4 materials1 process step
Small area (0.063 mm2) vertical GaN PN diode achieving non-destructive breakdown of 6.4 kV with specific on-resistance of 10.2 mΩ-cm2 when accounting for current spreading through the drift region at a 45° angle. Positive temperature coefficient of breakdown confirmed avalanche process.
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
high voltage gallium nitride vertical PN diode
GaNp-type contact cap (high-doped p++-GaN)
GaNp-type region lower (moderately doped p-GaN)
GaNdrift layer (n- voltage blocking)
GaNcathode contact layer (n++ substrate)
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
Luke Yates, Brendan P. Gunning, Mary H. Crawford, Jeffrey Steinfeldt et al.
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)·Feb. 4, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 is an axisymmetric schematic illustration of an exemplary vertical PN diode with a 4-zone step-etched JTE (not to scale). The JTEs were designed to …
FIG. 2
FIG. 2A is an image of a completed vertical GaN PN diodes with a 2-zone JTE design.
FIG. 3
performance graph
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4
performance graph
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 5
performance graph
FIG. 5A is a graph of forward I-V characteristics of a 1 mm2 device under pulsed conditions. Inset shows forward current on a semi-logarithmic scale.
FIG. 6
performance graph
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 7
performance graph
FIG. 7B is a graph showing extracted carrier con- centration of measured devices in the n-GaN drift layer. A frequency of 1 MHz was used for the CV …
FIG. 8
performance graph
FIG. 8 is a graph showing the temperature dependence of the reverse I-V characteristics of a PN junction diode with an anode area of 0.063 mm2.
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 independent · 9 dependent
1
IndependentGaNGaNGaNGaNhigh voltage gallium nitride vertical PN diode
A high voltage gallium nitride vertical PN diode, comprising: a high-doped n-type gallium nitride substrate or contact layer; a low-doped n-type gallium nitride drift layer epitaxially grown on the gallium nitride substrate, wherein the drift layer is greater than 10 microns in thickness and has a donor concentration of less than 2×1015/cm3; a p-type region comprising one or more p-type layers epitaxially grown on the drift layer, thereby forming a PN junction with the drift layer; an ohmic cathode contact deposited on the high-doped n-type gallium nitride substrate or contact layer; an ohmic anode contact deposited on the p-type region; and a step-etched multi-zone junction termination extension structure laterally surrounding the anode contact in the p-type region.
2
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the low-doped n-type gallium nitride drift layer is grown by metal-organic chemical vapor deposition under compensation doping conditions.
3
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the drift layer is equal to or greater than microns in thickness.
4
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the area of the anode contact is greater than 0.01 mm2.
6
Dependent← claim 1GaNGaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the p-type region comprises a moderately doped p-type gallium nitride layer epitaxially grown on the drift layer and a high-doped p-type gallium nitride layer epitaxially grown on the moderately doped p-type gallium nitride layer.
9
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the step-etched multi-zone junction termi-nation extension structure comprises two or more zones.
10
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the PN diode has an avalanche breakdown voltage of greater than 5 kV in reverse bias. ∗ ∗ ∗ ∗ ∗
Worked examples
Embodiments described in the patent, grouped by the materials and process steps they use.
Large area diode exemplary result
description derived process summary
4 materials1 process step
Large area (1 mm2) vertical GaN PN diode fabricated on bulk GaN substrate, demonstrating 3.5 A forward pulsed current, 8.3 mΩ-cm2 specific on-resistance, and 5.3 kV reverse breakdown. Drift region grown by MOCVD to 50 µm with carrier concentration <1×10¹⁵ cm⁻³. 4-zone step-etched JTE was used.
Small area diode exemplary result
description derived process summary
4 materials1 process step
Small area (0.063 mm2) vertical GaN PN diode achieving non-destructive breakdown of 6.4 kV with specific on-resistance of 10.2 mΩ-cm2 when accounting for current spreading through the drift region at a 45° angle. Positive temperature coefficient of breakdown confirmed avalanche process.
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
high voltage gallium nitride vertical PN diode
GaNp-type contact cap (high-doped p++-GaN)
GaNp-type region lower (moderately doped p-GaN)
GaNdrift layer (n- voltage blocking)
GaNcathode contact layer (n++ substrate)
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
Luke Yates, Brendan P. Gunning, Mary H. Crawford, Jeffrey Steinfeldt et al.
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)·Feb. 4, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 is an axisymmetric schematic illustration of an exemplary vertical PN diode with a 4-zone step-etched JTE (not to scale). The JTEs were designed to …
FIG. 2
FIG. 2A is an image of a completed vertical GaN PN diodes with a 2-zone JTE design.
FIG. 3
performance graph
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4
performance graph
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 5
performance graph
FIG. 5A is a graph of forward I-V characteristics of a 1 mm2 device under pulsed conditions. Inset shows forward current on a semi-logarithmic scale.
FIG. 6
performance graph
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 7
performance graph
FIG. 7B is a graph showing extracted carrier con- centration of measured devices in the n-GaN drift layer. A frequency of 1 MHz was used for the CV …
FIG. 8
performance graph
FIG. 8 is a graph showing the temperature dependence of the reverse I-V characteristics of a PN junction diode with an anode area of 0.063 mm2.
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 independent · 9 dependent
1
IndependentGaNGaNGaNGaNhigh voltage gallium nitride vertical PN diode
A high voltage gallium nitride vertical PN diode, comprising: a high-doped n-type gallium nitride substrate or contact layer; a low-doped n-type gallium nitride drift layer epitaxially grown on the gallium nitride substrate, wherein the drift layer is greater than 10 microns in thickness and has a donor concentration of less than 2×1015/cm3; a p-type region comprising one or more p-type layers epitaxially grown on the drift layer, thereby forming a PN junction with the drift layer; an ohmic cathode contact deposited on the high-doped n-type gallium nitride substrate or contact layer; an ohmic anode contact deposited on the p-type region; and a step-etched multi-zone junction termination extension structure laterally surrounding the anode contact in the p-type region.
2
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the low-doped n-type gallium nitride drift layer is grown by metal-organic chemical vapor deposition under compensation doping conditions.
3
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the drift layer is equal to or greater than microns in thickness.
4
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the area of the anode contact is greater than 0.01 mm2.
6
Dependent← claim 1GaNGaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the p-type region comprises a moderately doped p-type gallium nitride layer epitaxially grown on the drift layer and a high-doped p-type gallium nitride layer epitaxially grown on the moderately doped p-type gallium nitride layer.
9
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the step-etched multi-zone junction termi-nation extension structure comprises two or more zones.
10
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the PN diode has an avalanche breakdown voltage of greater than 5 kV in reverse bias. ∗ ∗ ∗ ∗ ∗
Worked examples
Embodiments described in the patent, grouped by the materials and process steps they use.
Large area diode exemplary result
description derived process summary
4 materials1 process step
Large area (1 mm2) vertical GaN PN diode fabricated on bulk GaN substrate, demonstrating 3.5 A forward pulsed current, 8.3 mΩ-cm2 specific on-resistance, and 5.3 kV reverse breakdown. Drift region grown by MOCVD to 50 µm with carrier concentration <1×10¹⁵ cm⁻³. 4-zone step-etched JTE was used.
Small area diode exemplary result
description derived process summary
4 materials1 process step
Small area (0.063 mm2) vertical GaN PN diode achieving non-destructive breakdown of 6.4 kV with specific on-resistance of 10.2 mΩ-cm2 when accounting for current spreading through the drift region at a 45° angle. Positive temperature coefficient of breakdown confirmed avalanche process.
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
high voltage gallium nitride vertical PN diode
GaNp-type contact cap (high-doped p++-GaN)
GaNp-type region lower (moderately doped p-GaN)
GaNdrift layer (n- voltage blocking)
GaNcathode contact layer (n++ substrate)
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
Luke Yates, Brendan P. Gunning, Mary H. Crawford, Jeffrey Steinfeldt et al.
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)·Feb. 4, 2025·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 is an axisymmetric schematic illustration of an exemplary vertical PN diode with a 4-zone step-etched JTE (not to scale). The JTEs were designed to …
FIG. 2
FIG. 2A is an image of a completed vertical GaN PN diodes with a 2-zone JTE design.
FIG. 3
performance graph
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4
performance graph
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 5
performance graph
FIG. 5A is a graph of forward I-V characteristics of a 1 mm2 device under pulsed conditions. Inset shows forward current on a semi-logarithmic scale.
FIG. 6
performance graph
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 7
performance graph
FIG. 7B is a graph showing extracted carrier con- centration of measured devices in the n-GaN drift layer. A frequency of 1 MHz was used for the CV …
FIG. 8
performance graph
FIG. 8 is a graph showing the temperature dependence of the reverse I-V characteristics of a PN junction diode with an anode area of 0.063 mm2.
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 independent · 9 dependent
1
IndependentGaNGaNGaNGaNhigh voltage gallium nitride vertical PN diode
A high voltage gallium nitride vertical PN diode, comprising: a high-doped n-type gallium nitride substrate or contact layer; a low-doped n-type gallium nitride drift layer epitaxially grown on the gallium nitride substrate, wherein the drift layer is greater than 10 microns in thickness and has a donor concentration of less than 2×1015/cm3; a p-type region comprising one or more p-type layers epitaxially grown on the drift layer, thereby forming a PN junction with the drift layer; an ohmic cathode contact deposited on the high-doped n-type gallium nitride substrate or contact layer; an ohmic anode contact deposited on the p-type region; and a step-etched multi-zone junction termination extension structure laterally surrounding the anode contact in the p-type region.
2
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the low-doped n-type gallium nitride drift layer is grown by metal-organic chemical vapor deposition under compensation doping conditions.
3
Dependent← claim 1GaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the drift layer is equal to or greater than microns in thickness.
4
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the area of the anode contact is greater than 0.01 mm2.
6
Dependent← claim 1GaNGaNhigh voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the p-type region comprises a moderately doped p-type gallium nitride layer epitaxially grown on the drift layer and a high-doped p-type gallium nitride layer epitaxially grown on the moderately doped p-type gallium nitride layer.
9
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the step-etched multi-zone junction termi-nation extension structure comprises two or more zones.
10
Dependent← claim 1high voltage gallium nitride vertical PN diode
The high voltage gallium nitride vertical PN diode of claim 1, wherein the PN diode has an avalanche breakdown voltage of greater than 5 kV in reverse bias. ∗ ∗ ∗ ∗ ∗
Worked examples
Embodiments described in the patent, grouped by the materials and process steps they use.
Large area diode exemplary result
description derived process summary
4 materials1 process step
Large area (1 mm2) vertical GaN PN diode fabricated on bulk GaN substrate, demonstrating 3.5 A forward pulsed current, 8.3 mΩ-cm2 specific on-resistance, and 5.3 kV reverse breakdown. Drift region grown by MOCVD to 50 µm with carrier concentration <1×10¹⁵ cm⁻³. 4-zone step-etched JTE was used.
Small area diode exemplary result
description derived process summary
4 materials1 process step
Small area (0.063 mm2) vertical GaN PN diode achieving non-destructive breakdown of 6.4 kV with specific on-resistance of 10.2 mΩ-cm2 when accounting for current spreading through the drift region at a 45° angle. Positive temperature coefficient of breakdown confirmed avalanche process.
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
high voltage gallium nitride vertical PN diode
GaNp-type contact cap (high-doped p++-GaN)
GaNp-type region lower (moderately doped p-GaN)
GaNdrift layer (n- voltage blocking)
GaNcathode contact layer (n++ substrate)
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
US 2012/0292636 A12012/0292636 A1 * 11/2012 Zhang................... H01L 29/732examiner
US 2012/0313212 A12012/0313212 A1 * 12/2012 Sugawara............. H01L 29/872examiner
US 2013/0020611 A12013/0020611 A1 * 1/2013 Gumaelius.......... H01L 21/3065examiner
US 2013/0020635 A12013/0020635 A1 * 1/2013 Yilmaz............... H01L 29/0619examiner
US 2016/0372609 A12016/0372609 A1 12/2016 Kiyama et al.
US 2017/0271158 A12017/0271158 A1 9/2017 Minamisawa et al.
US 2022/0157951 A12022/0157951 A1 * 5/2022 Yilmaz............... H01L 29/8611examiner
CN 112216694 ACN 112216694 A * 1/2021......... H01L 21/8213examiner
CN 113658860 ACN 113658860 A * 11/2021.......... H01L 29/0611examiner
Cited non-patent literature · 2
Gallium Nitride Devices for Power Electronic Appli- cations. Baliga, B. J. “Gallium Nitride Devices for Power Electronic Appli- cations,” Semiconductor Science and Technology, 2013, vol. 28, 074011, 8 pages.
Power Electronic Devices and Systems Based on Bulk GaN Substrates. Carlson, E. P. et al., “Power Electronic Devices and Systems Based on Bulk GaN Substrates,” Materials Science Forum, 2018, vol. 924, pp. 799-804. Armstrong, A. M. et al., “High Voltage and High Current Density Vertical GaN Power Diodes,” Electronics Letters, 2016, vol. 52, pp. 1170-1171. Motoki, K., “Development of Gallium Nitride Substrates,” SEI Technical Review, 2010, No. 70, pp. 28-35. Ohta, H. et al., “5.0 kV Breakdown-Voltage Vertical GaN p-n Junction Diodes,” Japanese Journal of Applied Physics, 2018, vol. 57, pp. 04FG09-1-04FG09-.4. Kizilyalli, I. et al., “Vertical Power p-n Diodes Based on Bulk GaN,” IEEE Transactions on Electron Devices, 2015, vol. 62, pp. 414-422. Pu, T. et al., “Review of Recent Progress on Vertical GaN-Based PN Diodes,” Nanoscale Research Letters, 2021, vol. 16, 14 pages. King, M. P. et al., “Identification of the Primary Compensating Defect Level Responsible for Determining Blocking Voltage of Vertical GaN Power Diodes,” Applied Physics Letters, 2016, vol. 109, pp. 183503-1-183503-5. Dickerson, J. R. et al., “Simulation and Design of Step-Etched Junction Termination Extensions for GaN Power Diodes,” 2020 4th IEEE Electron Devices Technology & Manufacturing Conference (Proceedings of Technical Papers (EDTM), 2020, 4 pages. Cao, X. A. et al., “Electrical Effects of Plasma Damage in p-GaN,” Applied Physics Letters, 1999, vol. 75, pp. 2569-2571.
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
US 2012/0292636 A12012/0292636 A1 * 11/2012 Zhang................... H01L 29/732examiner
US 2012/0313212 A12012/0313212 A1 * 12/2012 Sugawara............. H01L 29/872examiner
US 2013/0020611 A12013/0020611 A1 * 1/2013 Gumaelius.......... H01L 21/3065examiner
US 2013/0020635 A12013/0020635 A1 * 1/2013 Yilmaz............... H01L 29/0619examiner
US 2016/0372609 A12016/0372609 A1 12/2016 Kiyama et al.
US 2017/0271158 A12017/0271158 A1 9/2017 Minamisawa et al.
US 2022/0157951 A12022/0157951 A1 * 5/2022 Yilmaz............... H01L 29/8611examiner
CN 112216694 ACN 112216694 A * 1/2021......... H01L 21/8213examiner
CN 113658860 ACN 113658860 A * 11/2021.......... H01L 29/0611examiner
Cited non-patent literature · 2
Gallium Nitride Devices for Power Electronic Appli- cations. Baliga, B. J. “Gallium Nitride Devices for Power Electronic Appli- cations,” Semiconductor Science and Technology, 2013, vol. 28, 074011, 8 pages.
Power Electronic Devices and Systems Based on Bulk GaN Substrates. Carlson, E. P. et al., “Power Electronic Devices and Systems Based on Bulk GaN Substrates,” Materials Science Forum, 2018, vol. 924, pp. 799-804. Armstrong, A. M. et al., “High Voltage and High Current Density Vertical GaN Power Diodes,” Electronics Letters, 2016, vol. 52, pp. 1170-1171. Motoki, K., “Development of Gallium Nitride Substrates,” SEI Technical Review, 2010, No. 70, pp. 28-35. Ohta, H. et al., “5.0 kV Breakdown-Voltage Vertical GaN p-n Junction Diodes,” Japanese Journal of Applied Physics, 2018, vol. 57, pp. 04FG09-1-04FG09-.4. Kizilyalli, I. et al., “Vertical Power p-n Diodes Based on Bulk GaN,” IEEE Transactions on Electron Devices, 2015, vol. 62, pp. 414-422. Pu, T. et al., “Review of Recent Progress on Vertical GaN-Based PN Diodes,” Nanoscale Research Letters, 2021, vol. 16, 14 pages. King, M. P. et al., “Identification of the Primary Compensating Defect Level Responsible for Determining Blocking Voltage of Vertical GaN Power Diodes,” Applied Physics Letters, 2016, vol. 109, pp. 183503-1-183503-5. Dickerson, J. R. et al., “Simulation and Design of Step-Etched Junction Termination Extensions for GaN Power Diodes,” 2020 4th IEEE Electron Devices Technology & Manufacturing Conference (Proceedings of Technical Papers (EDTM), 2020, 4 pages. Cao, X. A. et al., “Electrical Effects of Plasma Damage in p-GaN,” Applied Physics Letters, 1999, vol. 75, pp. 2569-2571.
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
US 2012/0292636 A12012/0292636 A1 * 11/2012 Zhang................... H01L 29/732examiner
US 2012/0313212 A12012/0313212 A1 * 12/2012 Sugawara............. H01L 29/872examiner
US 2013/0020611 A12013/0020611 A1 * 1/2013 Gumaelius.......... H01L 21/3065examiner
US 2013/0020635 A12013/0020635 A1 * 1/2013 Yilmaz............... H01L 29/0619examiner
US 2016/0372609 A12016/0372609 A1 12/2016 Kiyama et al.
US 2017/0271158 A12017/0271158 A1 9/2017 Minamisawa et al.
US 2022/0157951 A12022/0157951 A1 * 5/2022 Yilmaz............... H01L 29/8611examiner
CN 112216694 ACN 112216694 A * 1/2021......... H01L 21/8213examiner
CN 113658860 ACN 113658860 A * 11/2021.......... H01L 29/0611examiner
Cited non-patent literature · 2
Gallium Nitride Devices for Power Electronic Appli- cations. Baliga, B. J. “Gallium Nitride Devices for Power Electronic Appli- cations,” Semiconductor Science and Technology, 2013, vol. 28, 074011, 8 pages.
Power Electronic Devices and Systems Based on Bulk GaN Substrates. Carlson, E. P. et al., “Power Electronic Devices and Systems Based on Bulk GaN Substrates,” Materials Science Forum, 2018, vol. 924, pp. 799-804. Armstrong, A. M. et al., “High Voltage and High Current Density Vertical GaN Power Diodes,” Electronics Letters, 2016, vol. 52, pp. 1170-1171. Motoki, K., “Development of Gallium Nitride Substrates,” SEI Technical Review, 2010, No. 70, pp. 28-35. Ohta, H. et al., “5.0 kV Breakdown-Voltage Vertical GaN p-n Junction Diodes,” Japanese Journal of Applied Physics, 2018, vol. 57, pp. 04FG09-1-04FG09-.4. Kizilyalli, I. et al., “Vertical Power p-n Diodes Based on Bulk GaN,” IEEE Transactions on Electron Devices, 2015, vol. 62, pp. 414-422. Pu, T. et al., “Review of Recent Progress on Vertical GaN-Based PN Diodes,” Nanoscale Research Letters, 2021, vol. 16, 14 pages. King, M. P. et al., “Identification of the Primary Compensating Defect Level Responsible for Determining Blocking Voltage of Vertical GaN Power Diodes,” Applied Physics Letters, 2016, vol. 109, pp. 183503-1-183503-5. Dickerson, J. R. et al., “Simulation and Design of Step-Etched Junction Termination Extensions for GaN Power Diodes,” 2020 4th IEEE Electron Devices Technology & Manufacturing Conference (Proceedings of Technical Papers (EDTM), 2020, 4 pages. Cao, X. A. et al., “Electrical Effects of Plasma Damage in p-GaN,” Applied Physics Letters, 1999, vol. 75, pp. 2569-2571.
FIG. 3 is a graph of reverse I-V characteristics and breakdown voltage of two PN diodes with an anode area of 0.063 mm2 and 1 mm2. The noise floor change is a …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 4B is a graph of forward I-V characteristics of the 6.0 kV diode with an anode area of 1 mm2. Insets show forward current on a semi-logarithmic scale. …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
FIG. 6 is a graph of reverse I-V characteristics for 4-zone and 2-zone JTE designs where both had a total JTE width of 300 mm. A similar breakdown of ∼5.9 kV …
US 2012/0292636 A12012/0292636 A1 * 11/2012 Zhang................... H01L 29/732examiner
US 2012/0313212 A12012/0313212 A1 * 12/2012 Sugawara............. H01L 29/872examiner
US 2013/0020611 A12013/0020611 A1 * 1/2013 Gumaelius.......... H01L 21/3065examiner
US 2013/0020635 A12013/0020635 A1 * 1/2013 Yilmaz............... H01L 29/0619examiner
US 2016/0372609 A12016/0372609 A1 12/2016 Kiyama et al.
US 2017/0271158 A12017/0271158 A1 9/2017 Minamisawa et al.
US 2022/0157951 A12022/0157951 A1 * 5/2022 Yilmaz............... H01L 29/8611examiner
CN 112216694 ACN 112216694 A * 1/2021......... H01L 21/8213examiner
CN 113658860 ACN 113658860 A * 11/2021.......... H01L 29/0611examiner
Cited non-patent literature · 2
Gallium Nitride Devices for Power Electronic Appli- cations. Baliga, B. J. “Gallium Nitride Devices for Power Electronic Appli- cations,” Semiconductor Science and Technology, 2013, vol. 28, 074011, 8 pages.
Power Electronic Devices and Systems Based on Bulk GaN Substrates. Carlson, E. P. et al., “Power Electronic Devices and Systems Based on Bulk GaN Substrates,” Materials Science Forum, 2018, vol. 924, pp. 799-804. Armstrong, A. M. et al., “High Voltage and High Current Density Vertical GaN Power Diodes,” Electronics Letters, 2016, vol. 52, pp. 1170-1171. Motoki, K., “Development of Gallium Nitride Substrates,” SEI Technical Review, 2010, No. 70, pp. 28-35. Ohta, H. et al., “5.0 kV Breakdown-Voltage Vertical GaN p-n Junction Diodes,” Japanese Journal of Applied Physics, 2018, vol. 57, pp. 04FG09-1-04FG09-.4. Kizilyalli, I. et al., “Vertical Power p-n Diodes Based on Bulk GaN,” IEEE Transactions on Electron Devices, 2015, vol. 62, pp. 414-422. Pu, T. et al., “Review of Recent Progress on Vertical GaN-Based PN Diodes,” Nanoscale Research Letters, 2021, vol. 16, 14 pages. King, M. P. et al., “Identification of the Primary Compensating Defect Level Responsible for Determining Blocking Voltage of Vertical GaN Power Diodes,” Applied Physics Letters, 2016, vol. 109, pp. 183503-1-183503-5. Dickerson, J. R. et al., “Simulation and Design of Step-Etched Junction Termination Extensions for GaN Power Diodes,” 2020 4th IEEE Electron Devices Technology & Manufacturing Conference (Proceedings of Technical Papers (EDTM), 2020, 4 pages. Cao, X. A. et al., “Electrical Effects of Plasma Damage in p-GaN,” Applied Physics Letters, 1999, vol. 75, pp. 2569-2571.