WAFER BONDING TECHNIQUE IN NITRIDE SEMICONDUCTORS | Matter42 Literature
Patent
Atlas literature
Patent
US 8,703,623
WAFER BONDING TECHNIQUE IN NITRIDE SEMICONDUCTORS
Jinwook Chung, Han Wang, Tomas Palacios
US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1C.
FIG. 2
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
FIG. 3
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 4
FIG. 4A illustrates HEMT 36 having a Si substrate 38 and a HSQ interlayer 40 formed on the substrate 38. An A l GaN layer 42 is formed on the HSQ interlayer …
FIG. 5
FIG. 5G. The silicon dioxide layers 74 and 84 can be the HSQ interlayers described herein.
FIG. 6
process chamber schematic
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7
performance graph
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …
FIG. 8
FIG. 8A. While the HSQ layer 120 will reduce the charge compensation effect of the p-type substrate 118 on the GaN channel 122, this layer 120 of H SQ can also …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 12 dependent
1
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structuresemiconductor arrangement with nitride-based material on substrate via insulating intermediary layer
A semiconductor arrangement comprising. 2 one or more substrate structures; 3 one or more ni tride-based mate ri al structures for fabricating nitride-based devices 4 fabricated in dependently from said one or more substrate structures, 5 one or more intermediary layers having in sulating materials being directly 6 interposed between said one or more substrate structures and said one or more nitride- 7 based material structures, said one or more intermediary layers supporting the lattice 8 mismatch and thermal expansion coefficients between said one or more ni tride-based 9 material structures, and said one or more substrate structures. 1 2 The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures comprise Si (100), Si (111), SiC, diamond, A 120 3, A l N, or 3 sapphire. 1
3
Dependent← claim 1AlxInyGazN
The semiconductor arrangement of claim 1, wherein said one or more 2 nitride-based material structures comprise A lxInyGazN. 1
4
Dependent← claim 1HSQ (hydrogen silsesquioxane)
The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures have been locally removed to expose a buried structure 3 where devices are fabricated 820867 1 2 Attorney Docket No MIT 13414 U S App lic ation Se ri al No 12/475,740 1 5 The semiconductor arrangement of claim 1, wherein said one or more 2 intermediary layers comprise HSQ. 1
6
Dependent← claim 1SiO₂
The semiconductor arrangement of claim 1, wherein said one or more 2 in termediary layers comprise si li con dioxide 1 7 The semiconductor arrangement of claim 1, wherein said one 2 or more substrate structures are doped p type 1
8
Dependent← claim 1, claim 4GaNN-face GaN transistorGaN-based power device
The semiconductor arrangement of claim 1, wherein said semiconductor 2 arrangement comprises a N-face GaN transistor structure. 1 9 (Orig in al) The semiconductor arrangement of claim 4, where in said semiconductor 2 arrangement comprises a GaN-based power device structure 1
The semiconductor arrangement of claim 1, wherein said one 2 or more ni tride-based material structures comprise A lxInyGaz N/GaN transistor structures. 1
12
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structure
A method of fabricating a ni tride-base device compris ing: 2 providing one or more substrate structures, 820867 1 3 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.1.1512.154.2167.240.svg 0.287 2.183 Chemistry Black and white 3 provid in g one or more nitride-based material structures fabricated in dependently 4 from said one or more substrate structures, and 5 6 directly positioning one or more intermediary layers hav ing in sulating materials 7 between said one or more substrate structures and said one or more nitride-based material 8 structures, said one or more in termediary layers supporting the lattice mismatch and 9 thermal expansion coefficients between said one or more ni tride-based material structures 10 and said one or more substrate structures 1
The method of claim 12, where in said one or more nitride-based material 2 structures comprise A lxInyGazN 1 15 The method of claim 12, wherein said one or more substrate 2 structures have been locally removed to expose a bur i ed structure where devices are SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.17.275.2169.630.2220.svg 0.17 1.183 Chemistry Black and white 1 16 The method of claim 12, where in said one or more intermediary layers 2 comprise HSQ. 1 17 (Orig in al) The method of claim 12, wherein said one or more intermediary layers 2 comprise s ili con dioxide 820867 1 4 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336568.1.1507.155.2165.240.svg 0.283 2.193 Graph Black and white 1 18. The method of cla im 12, where in said one or more substrate 2 structures are doped p-type 1
Additional fabrication and treatment steps described in the patent.
1
Wafer Bonding
Step 1
Temperature
150, 200, 400°C
Duration
1, 1, 60 min
Process details
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
sem
SEM
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1C.
FIG. 2
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
FIG. 3
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 4
FIG. 4A illustrates HEMT 36 having a Si substrate 38 and a HSQ interlayer 40 formed on the substrate 38. An A l GaN layer 42 is formed on the HSQ interlayer …
FIG. 5
FIG. 5G. The silicon dioxide layers 74 and 84 can be the HSQ interlayers described herein.
FIG. 6
process chamber schematic
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7
performance graph
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …
FIG. 8
FIG. 8A. While the HSQ layer 120 will reduce the charge compensation effect of the p-type substrate 118 on the GaN channel 122, this layer 120 of H SQ can also …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 12 dependent
1
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structuresemiconductor arrangement with nitride-based material on substrate via insulating intermediary layer
A semiconductor arrangement comprising. 2 one or more substrate structures; 3 one or more ni tride-based mate ri al structures for fabricating nitride-based devices 4 fabricated in dependently from said one or more substrate structures, 5 one or more intermediary layers having in sulating materials being directly 6 interposed between said one or more substrate structures and said one or more nitride- 7 based material structures, said one or more intermediary layers supporting the lattice 8 mismatch and thermal expansion coefficients between said one or more ni tride-based 9 material structures, and said one or more substrate structures. 1 2 The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures comprise Si (100), Si (111), SiC, diamond, A 120 3, A l N, or 3 sapphire. 1
3
Dependent← claim 1AlxInyGazN
The semiconductor arrangement of claim 1, wherein said one or more 2 nitride-based material structures comprise A lxInyGazN. 1
4
Dependent← claim 1HSQ (hydrogen silsesquioxane)
The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures have been locally removed to expose a buried structure 3 where devices are fabricated 820867 1 2 Attorney Docket No MIT 13414 U S App lic ation Se ri al No 12/475,740 1 5 The semiconductor arrangement of claim 1, wherein said one or more 2 intermediary layers comprise HSQ. 1
6
Dependent← claim 1SiO₂
The semiconductor arrangement of claim 1, wherein said one or more 2 in termediary layers comprise si li con dioxide 1 7 The semiconductor arrangement of claim 1, wherein said one 2 or more substrate structures are doped p type 1
8
Dependent← claim 1, claim 4GaNN-face GaN transistorGaN-based power device
The semiconductor arrangement of claim 1, wherein said semiconductor 2 arrangement comprises a N-face GaN transistor structure. 1 9 (Orig in al) The semiconductor arrangement of claim 4, where in said semiconductor 2 arrangement comprises a GaN-based power device structure 1
The semiconductor arrangement of claim 1, wherein said one 2 or more ni tride-based material structures comprise A lxInyGaz N/GaN transistor structures. 1
12
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structure
A method of fabricating a ni tride-base device compris ing: 2 providing one or more substrate structures, 820867 1 3 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.1.1512.154.2167.240.svg 0.287 2.183 Chemistry Black and white 3 provid in g one or more nitride-based material structures fabricated in dependently 4 from said one or more substrate structures, and 5 6 directly positioning one or more intermediary layers hav ing in sulating materials 7 between said one or more substrate structures and said one or more nitride-based material 8 structures, said one or more in termediary layers supporting the lattice mismatch and 9 thermal expansion coefficients between said one or more ni tride-based material structures 10 and said one or more substrate structures 1
The method of claim 12, where in said one or more nitride-based material 2 structures comprise A lxInyGazN 1 15 The method of claim 12, wherein said one or more substrate 2 structures have been locally removed to expose a bur i ed structure where devices are SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.17.275.2169.630.2220.svg 0.17 1.183 Chemistry Black and white 1 16 The method of claim 12, where in said one or more intermediary layers 2 comprise HSQ. 1 17 (Orig in al) The method of claim 12, wherein said one or more intermediary layers 2 comprise s ili con dioxide 820867 1 4 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336568.1.1507.155.2165.240.svg 0.283 2.193 Graph Black and white 1 18. The method of cla im 12, where in said one or more substrate 2 structures are doped p-type 1
Additional fabrication and treatment steps described in the patent.
1
Wafer Bonding
Step 1
Temperature
150, 200, 400°C
Duration
1, 1, 60 min
Process details
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
sem
SEM
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1C.
FIG. 2
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
FIG. 3
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 4
FIG. 4A illustrates HEMT 36 having a Si substrate 38 and a HSQ interlayer 40 formed on the substrate 38. An A l GaN layer 42 is formed on the HSQ interlayer …
FIG. 5
FIG. 5G. The silicon dioxide layers 74 and 84 can be the HSQ interlayers described herein.
FIG. 6
process chamber schematic
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7
performance graph
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …
FIG. 8
FIG. 8A. While the HSQ layer 120 will reduce the charge compensation effect of the p-type substrate 118 on the GaN channel 122, this layer 120 of H SQ can also …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 12 dependent
1
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structuresemiconductor arrangement with nitride-based material on substrate via insulating intermediary layer
A semiconductor arrangement comprising. 2 one or more substrate structures; 3 one or more ni tride-based mate ri al structures for fabricating nitride-based devices 4 fabricated in dependently from said one or more substrate structures, 5 one or more intermediary layers having in sulating materials being directly 6 interposed between said one or more substrate structures and said one or more nitride- 7 based material structures, said one or more intermediary layers supporting the lattice 8 mismatch and thermal expansion coefficients between said one or more ni tride-based 9 material structures, and said one or more substrate structures. 1 2 The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures comprise Si (100), Si (111), SiC, diamond, A 120 3, A l N, or 3 sapphire. 1
3
Dependent← claim 1AlxInyGazN
The semiconductor arrangement of claim 1, wherein said one or more 2 nitride-based material structures comprise A lxInyGazN. 1
4
Dependent← claim 1HSQ (hydrogen silsesquioxane)
The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures have been locally removed to expose a buried structure 3 where devices are fabricated 820867 1 2 Attorney Docket No MIT 13414 U S App lic ation Se ri al No 12/475,740 1 5 The semiconductor arrangement of claim 1, wherein said one or more 2 intermediary layers comprise HSQ. 1
6
Dependent← claim 1SiO₂
The semiconductor arrangement of claim 1, wherein said one or more 2 in termediary layers comprise si li con dioxide 1 7 The semiconductor arrangement of claim 1, wherein said one 2 or more substrate structures are doped p type 1
8
Dependent← claim 1, claim 4GaNN-face GaN transistorGaN-based power device
The semiconductor arrangement of claim 1, wherein said semiconductor 2 arrangement comprises a N-face GaN transistor structure. 1 9 (Orig in al) The semiconductor arrangement of claim 4, where in said semiconductor 2 arrangement comprises a GaN-based power device structure 1
The semiconductor arrangement of claim 1, wherein said one 2 or more ni tride-based material structures comprise A lxInyGaz N/GaN transistor structures. 1
12
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structure
A method of fabricating a ni tride-base device compris ing: 2 providing one or more substrate structures, 820867 1 3 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.1.1512.154.2167.240.svg 0.287 2.183 Chemistry Black and white 3 provid in g one or more nitride-based material structures fabricated in dependently 4 from said one or more substrate structures, and 5 6 directly positioning one or more intermediary layers hav ing in sulating materials 7 between said one or more substrate structures and said one or more nitride-based material 8 structures, said one or more in termediary layers supporting the lattice mismatch and 9 thermal expansion coefficients between said one or more ni tride-based material structures 10 and said one or more substrate structures 1
The method of claim 12, where in said one or more nitride-based material 2 structures comprise A lxInyGazN 1 15 The method of claim 12, wherein said one or more substrate 2 structures have been locally removed to expose a bur i ed structure where devices are SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.17.275.2169.630.2220.svg 0.17 1.183 Chemistry Black and white 1 16 The method of claim 12, where in said one or more intermediary layers 2 comprise HSQ. 1 17 (Orig in al) The method of claim 12, wherein said one or more intermediary layers 2 comprise s ili con dioxide 820867 1 4 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336568.1.1507.155.2165.240.svg 0.283 2.193 Graph Black and white 1 18. The method of cla im 12, where in said one or more substrate 2 structures are doped p-type 1
Additional fabrication and treatment steps described in the patent.
1
Wafer Bonding
Step 1
Temperature
150, 200, 400°C
Duration
1, 1, 60 min
Process details
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
sem
SEM
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1C.
FIG. 2
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
FIG. 3
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 4
FIG. 4A illustrates HEMT 36 having a Si substrate 38 and a HSQ interlayer 40 formed on the substrate 38. An A l GaN layer 42 is formed on the HSQ interlayer …
FIG. 5
FIG. 5G. The silicon dioxide layers 74 and 84 can be the HSQ interlayers described herein.
FIG. 6
process chamber schematic
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7
performance graph
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …
FIG. 8
FIG. 8A. While the HSQ layer 120 will reduce the charge compensation effect of the p-type substrate 118 on the GaN channel 122, this layer 120 of H SQ can also …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 12 dependent
1
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structuresemiconductor arrangement with nitride-based material on substrate via insulating intermediary layer
A semiconductor arrangement comprising. 2 one or more substrate structures; 3 one or more ni tride-based mate ri al structures for fabricating nitride-based devices 4 fabricated in dependently from said one or more substrate structures, 5 one or more intermediary layers having in sulating materials being directly 6 interposed between said one or more substrate structures and said one or more nitride- 7 based material structures, said one or more intermediary layers supporting the lattice 8 mismatch and thermal expansion coefficients between said one or more ni tride-based 9 material structures, and said one or more substrate structures. 1 2 The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures comprise Si (100), Si (111), SiC, diamond, A 120 3, A l N, or 3 sapphire. 1
3
Dependent← claim 1AlxInyGazN
The semiconductor arrangement of claim 1, wherein said one or more 2 nitride-based material structures comprise A lxInyGazN. 1
4
Dependent← claim 1HSQ (hydrogen silsesquioxane)
The semiconductor arrangement of claim 1, where in said one 2 or more substrate structures have been locally removed to expose a buried structure 3 where devices are fabricated 820867 1 2 Attorney Docket No MIT 13414 U S App lic ation Se ri al No 12/475,740 1 5 The semiconductor arrangement of claim 1, wherein said one or more 2 intermediary layers comprise HSQ. 1
6
Dependent← claim 1SiO₂
The semiconductor arrangement of claim 1, wherein said one or more 2 in termediary layers comprise si li con dioxide 1 7 The semiconductor arrangement of claim 1, wherein said one 2 or more substrate structures are doped p type 1
8
Dependent← claim 1, claim 4GaNN-face GaN transistorGaN-based power device
The semiconductor arrangement of claim 1, wherein said semiconductor 2 arrangement comprises a N-face GaN transistor structure. 1 9 (Orig in al) The semiconductor arrangement of claim 4, where in said semiconductor 2 arrangement comprises a GaN-based power device structure 1
The semiconductor arrangement of claim 1, wherein said one 2 or more ni tride-based material structures comprise A lxInyGaz N/GaN transistor structures. 1
12
Independentsubstrate (Si(100), Si(111), SiC, diamond, Al₂O3, AlN, sapphire)nitride-based material structure
A method of fabricating a ni tride-base device compris ing: 2 providing one or more substrate structures, 820867 1 3 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.1.1512.154.2167.240.svg 0.287 2.183 Chemistry Black and white 3 provid in g one or more nitride-based material structures fabricated in dependently 4 from said one or more substrate structures, and 5 6 directly positioning one or more intermediary layers hav ing in sulating materials 7 between said one or more substrate structures and said one or more nitride-based material 8 structures, said one or more in termediary layers supporting the lattice mismatch and 9 thermal expansion coefficients between said one or more ni tride-based material structures 10 and said one or more substrate structures 1
The method of claim 12, where in said one or more nitride-based material 2 structures comprise A lxInyGazN 1 15 The method of claim 12, wherein said one or more substrate 2 structures have been locally removed to expose a bur i ed structure where devices are SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336567.17.275.2169.630.2220.svg 0.17 1.183 Chemistry Black and white 1 16 The method of claim 12, where in said one or more intermediary layers 2 comprise HSQ. 1 17 (Orig in al) The method of claim 12, wherein said one or more intermediary layers 2 comprise s ili con dioxide 820867 1 4 SVG 12475740.10-16-2013.HMUX₄KUWPXXIFW3.CLM10336568.1.1507.155.2165.240.svg 0.283 2.193 Graph Black and white 1 18. The method of cla im 12, where in said one or more substrate 2 structures are doped p-type 1
Additional fabrication and treatment steps described in the patent.
1
Wafer Bonding
Step 1
Temperature
150, 200, 400°C
Duration
1, 1, 60 min
Process details
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
sem
SEM
FIG. 2 is a scanning electron micrograph of a successfully processed bonding between a GaN 10 and Si carrier 14 wafers in accordance with the invention (False …
description:HSQ spin-coated on carrier wafer, baked at 150°C and 200°C for 1 min each, then thermally compressed at >400°C for one hour to bond GaN wafer to carrier wafer
description:N-face GaN buffer etched by ECR-RIE with Cl₂/BCl₃ gas mixture to achieve desired distance between N-face GaN surface and AlGaN/GaN interface
Materials:GaN
fet electrical
Fet Electrical
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …
description:HSQ spin-coated on carrier wafer, baked at 150°C and 200°C for 1 min each, then thermally compressed at >400°C for one hour to bond GaN wafer to carrier wafer
description:N-face GaN buffer etched by ECR-RIE with Cl₂/BCl₃ gas mixture to achieve desired distance between N-face GaN surface and AlGaN/GaN interface
Materials:GaN
fet electrical
Fet Electrical
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …
description:HSQ spin-coated on carrier wafer, baked at 150°C and 200°C for 1 min each, then thermally compressed at >400°C for one hour to bond GaN wafer to carrier wafer
description:N-face GaN buffer etched by ECR-RIE with Cl₂/BCl₃ gas mixture to achieve desired distance between N-face GaN surface and AlGaN/GaN interface
Materials:GaN
fet electrical
Fet Electrical
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …
description:HSQ spin-coated on carrier wafer, baked at 150°C and 200°C for 1 min each, then thermally compressed at >400°C for one hour to bond GaN wafer to carrier wafer
description:N-face GaN buffer etched by ECR-RIE with Cl₂/BCl₃ gas mixture to achieve desired distance between N-face GaN surface and AlGaN/GaN interface
Materials:GaN
fet electrical
Fet Electrical
FIG. 3A. The A I GaN/GaN transistor structure 22 includes a GaN buffer layer 30 and an A l GaN layer 28 grown on the GaN buffer layer 30. To have access to the …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 6B shows a cross- section schematic view 164 of fabricated Si MOSFETs 160 and GaN HEMTs 162 and a plan-view 166 SEM image of the fabricated transistors …
FIG. 7 are graphs illustrating the performance of nitride-based devices; and FIGs. 8A- 8B are schematic diagrams illustrating two embodiments of power devices …