Patent
US 8,795,434OF INVENTION
Jaw Tian Lin
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 8,795,434Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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An apparatus for mass production of graphene, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedline and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso rp tion band compatible with the major absorption bands of the carbon containing gas; a solid substrate with an array of alternating parallel rectangular flat plates and a plurality of gaps[[,]] positioned inside said chamber, wherein said windows, said tunable high powered laser, and said gaps are linearly aligned such that a laser beam pulse passes through said first window, through said gaps, and out of said chamber through said second window; wherein the size of each gap is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said gaps to cause deposition of carbon atoms to the adjacent surfaces confining the plurality of gaps of said substrate to form graphene, and wherein the substrate materials are cafefully selected to have their absorption bands different than the abso r ption band of the tunable high powered laser off tha of the lasers, in addition to the carben conftaining gas free melecuilar cndins, to allow ful l contact of laser and substrate without the possibility of th e substrate overheating.
1 7. The apparatus of claim 16, f ur ther comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for preproduction purging; a pumping system compris in g an evacuation line and valve for exhausting said chamber.
The apparatus of claim 16, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 16, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 16, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an exci m er laser. previously presented
canceled
An apparatus for mass production of carbon tubes, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; Application Number: 12/807,282 3 a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedl in e and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso r ption band compatible with the major abso r ption bands of the carbon containing gas; a solid substrate with multiple bores inside a cylindrical shell positioned inside said chamber, wherein said windows, said tunable high powered laser, and said bores are linearly aligned such that a laser beam pulse passes through said first window, through said bores, and out of said chamber through said second window; wherein the size of each bore is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said bores to cause de p osition of carbon atoms to the ad j acent surfaces confin ing said the bores of said substrate to form carbon tubes, and wherein the substrate materials arc carefully seleeted to have the ir absorption bands different than the abso r ption band of the tunable high powered laser off that ofthe laser's, in addition to the carbon contaiing gas free moleculr conditions, to allow full contact of laser and substrate without the p ossibili ty of the substrate overheatin g.
The apparatus of claim 22, further comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for pre-production purging; a pumping system comprising an evacuation line and valve for exhausting said chamber.
The apparatus of claim 22, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 22, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 22, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an excimer laser. previously presented
canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene mass production apparatus
carbon tube mass production apparatus
Materials described outside the worked examples.
graphene
carbon containing gas
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 8,795,434Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
canceled
canceled
canceled
-1 5.
canceled
canceled
canceled
canceled
canceled
canceled
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An apparatus for mass production of graphene, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedline and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso rp tion band compatible with the major absorption bands of the carbon containing gas; a solid substrate with an array of alternating parallel rectangular flat plates and a plurality of gaps[[,]] positioned inside said chamber, wherein said windows, said tunable high powered laser, and said gaps are linearly aligned such that a laser beam pulse passes through said first window, through said gaps, and out of said chamber through said second window; wherein the size of each gap is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said gaps to cause deposition of carbon atoms to the adjacent surfaces confining the plurality of gaps of said substrate to form graphene, and wherein the substrate materials are cafefully selected to have their absorption bands different than the abso r ption band of the tunable high powered laser off tha of the lasers, in addition to the carben conftaining gas free melecuilar cndins, to allow ful l contact of laser and substrate without the possibility of th e substrate overheating.
1 7. The apparatus of claim 16, f ur ther comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for preproduction purging; a pumping system compris in g an evacuation line and valve for exhausting said chamber.
The apparatus of claim 16, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 16, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 16, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an exci m er laser. previously presented
canceled
An apparatus for mass production of carbon tubes, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; Application Number: 12/807,282 3 a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedl in e and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso r ption band compatible with the major abso r ption bands of the carbon containing gas; a solid substrate with multiple bores inside a cylindrical shell positioned inside said chamber, wherein said windows, said tunable high powered laser, and said bores are linearly aligned such that a laser beam pulse passes through said first window, through said bores, and out of said chamber through said second window; wherein the size of each bore is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said bores to cause de p osition of carbon atoms to the ad j acent surfaces confin ing said the bores of said substrate to form carbon tubes, and wherein the substrate materials arc carefully seleeted to have the ir absorption bands different than the abso r ption band of the tunable high powered laser off that ofthe laser's, in addition to the carbon contaiing gas free moleculr conditions, to allow full contact of laser and substrate without the p ossibili ty of the substrate overheatin g.
The apparatus of claim 22, further comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for pre-production purging; a pumping system comprising an evacuation line and valve for exhausting said chamber.
The apparatus of claim 22, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 22, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 22, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an excimer laser. previously presented
canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene mass production apparatus
carbon tube mass production apparatus
Materials described outside the worked examples.
graphene
carbon containing gas
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 8,795,434Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
canceled
canceled
canceled
-1 5.
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
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An apparatus for mass production of graphene, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedline and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso rp tion band compatible with the major absorption bands of the carbon containing gas; a solid substrate with an array of alternating parallel rectangular flat plates and a plurality of gaps[[,]] positioned inside said chamber, wherein said windows, said tunable high powered laser, and said gaps are linearly aligned such that a laser beam pulse passes through said first window, through said gaps, and out of said chamber through said second window; wherein the size of each gap is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said gaps to cause deposition of carbon atoms to the adjacent surfaces confining the plurality of gaps of said substrate to form graphene, and wherein the substrate materials are cafefully selected to have their absorption bands different than the abso r ption band of the tunable high powered laser off tha of the lasers, in addition to the carben conftaining gas free melecuilar cndins, to allow ful l contact of laser and substrate without the possibility of th e substrate overheating.
1 7. The apparatus of claim 16, f ur ther comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for preproduction purging; a pumping system compris in g an evacuation line and valve for exhausting said chamber.
The apparatus of claim 16, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 16, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 16, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an exci m er laser. previously presented
canceled
An apparatus for mass production of carbon tubes, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; Application Number: 12/807,282 3 a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedl in e and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso r ption band compatible with the major abso r ption bands of the carbon containing gas; a solid substrate with multiple bores inside a cylindrical shell positioned inside said chamber, wherein said windows, said tunable high powered laser, and said bores are linearly aligned such that a laser beam pulse passes through said first window, through said bores, and out of said chamber through said second window; wherein the size of each bore is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said bores to cause de p osition of carbon atoms to the ad j acent surfaces confin ing said the bores of said substrate to form carbon tubes, and wherein the substrate materials arc carefully seleeted to have the ir absorption bands different than the abso r ption band of the tunable high powered laser off that ofthe laser's, in addition to the carbon contaiing gas free moleculr conditions, to allow full contact of laser and substrate without the p ossibili ty of the substrate overheatin g.
The apparatus of claim 22, further comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for pre-production purging; a pumping system comprising an evacuation line and valve for exhausting said chamber.
The apparatus of claim 22, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 22, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 22, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an excimer laser. previously presented
canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene mass production apparatus
carbon tube mass production apparatus
Materials described outside the worked examples.
graphene
carbon containing gas
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 8,795,434Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
canceled
canceled
canceled
-1 5.
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
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An apparatus for mass production of graphene, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedline and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso rp tion band compatible with the major absorption bands of the carbon containing gas; a solid substrate with an array of alternating parallel rectangular flat plates and a plurality of gaps[[,]] positioned inside said chamber, wherein said windows, said tunable high powered laser, and said gaps are linearly aligned such that a laser beam pulse passes through said first window, through said gaps, and out of said chamber through said second window; wherein the size of each gap is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said gaps to cause deposition of carbon atoms to the adjacent surfaces confining the plurality of gaps of said substrate to form graphene, and wherein the substrate materials are cafefully selected to have their absorption bands different than the abso r ption band of the tunable high powered laser off tha of the lasers, in addition to the carben conftaining gas free melecuilar cndins, to allow ful l contact of laser and substrate without the possibility of th e substrate overheating.
1 7. The apparatus of claim 16, f ur ther comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for preproduction purging; a pumping system compris in g an evacuation line and valve for exhausting said chamber.
The apparatus of claim 16, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 16, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 16, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an exci m er laser. previously presented
canceled
An apparatus for mass production of carbon tubes, the apparatus compris ing: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; Application Number: 12/807,282 3 a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedl in e and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an abso r ption band compatible with the major abso r ption bands of the carbon containing gas; a solid substrate with multiple bores inside a cylindrical shell positioned inside said chamber, wherein said windows, said tunable high powered laser, and said bores are linearly aligned such that a laser beam pulse passes through said first window, through said bores, and out of said chamber through said second window; wherein the size of each bore is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said bores to cause de p osition of carbon atoms to the ad j acent surfaces confin ing said the bores of said substrate to form carbon tubes, and wherein the substrate materials arc carefully seleeted to have the ir absorption bands different than the abso r ption band of the tunable high powered laser off that ofthe laser's, in addition to the carbon contaiing gas free moleculr conditions, to allow full contact of laser and substrate without the p ossibili ty of the substrate overheatin g.
The apparatus of claim 22, further comprising: a nitrogen gas source configured to deliver a nitrogen gas to said chamber through a nitrogen gas feedline and valve for pre-production purging; a pumping system comprising an evacuation line and valve for exhausting said chamber.
The apparatus of claim 22, further comprising: a thermal mass outside the second window for absorbing the remaining power of the outgoing laser beam.
The apparatus of claim 22, wherein the carbon containing gas is selected from one of methane, carbon dioxide, ethanol, and ethylene.
The apparatus of claim 22, wherein the tunable high powered laser is selected from one of a helium-neon laser, xenon-fluoride laser, carbon-dioxide laser, hydrogen-chloride laser, and an excimer laser. previously presented
canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene mass production apparatus
carbon tube mass production apparatus
Materials described outside the worked examples.
graphene
carbon containing gas
Additional fabrication and treatment steps described in the patent.
nitrogen gas
N₂
methane
CH₄
carbon dioxide
CO₂
ethanol
C₂H₅OH
ethylene
C₂H₄
carbon tubes
nitrogen gas
N₂
methane
CH₄
carbon dioxide
CO₂
ethanol
C₂H₅OH
ethylene
C₂H₄
carbon tubes
nitrogen gas
N₂
methane
CH₄
carbon dioxide
CO₂
ethanol
C₂H₅OH
ethylene
C₂H₄
carbon tubes
nitrogen gas
N₂
methane
CH₄
carbon dioxide
CO₂
ethanol
C₂H₅OH
ethylene
C₂H₄
carbon tubes