Patent
US 9,402,322METAL-FREE MONOLITHIC EPITAXIAL GRAPHENE-ON-DIAMOND PWB WITH OPTICAL WAVEGUIDE
David G. Findley
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,402,322Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An apparatus comprising: 5 a circuit board made of polycrystalline diamond, the circuit board having been formed by thermolysis of layers of a preceramic polymer; a plurality of tubes formed within the circuit board and comprising a plurality of terminations at one or more 10 surfaces of the circuit board, each tube comprising a layer of graphene that is operable to permit each tube to conduct electrical current, each layer of graphene having been formed by thermolysis of the polycrystallilne diamond circuit board at a temperature greater than or 15 equal to 900 degrees Celsius; and a plurality of optical waveguides formed within the circuit board, each optical waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond, the polycrystalline diamond 20 having been formed by thermolysis of poly(hydridocarbyne), and the silicon carbide having been formed by thermolysis of poly(methylsilyne).
The apparatus of Claim 1, wherein the 25 preceramic polymer comprises one or more of poly(hydridocarbyne) and poly(methylsilyne). Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 48 of 52
The apparatus of Claim 1, wherein at least some SVG 14638686.03-04-2015.I₆V₉J₈L₆PXXIFW3.CLM14485261.6.410.668.2141.718.svg 0.167 5.77 Drawing Black and white pattern on a particular surface of the circuit board to receive connections of a component that is to be mounted 5 to the circuit board.
The apparatus of Claim 1, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 1, wherein at least some of the plurality of tubes are configured to be open to the atmosphere in order to equalize pressure between one or more of the plurality of tubes and the atmosphere.
The apparatus of Claim 1, wherein at least some of the plurality of tubes further comprise a layer of polycrystalline diamond that forms an outer surface of the tube, the layer of polycrystalline diamond being deposited over the layer of graphene.
The apparatus of Claim 1, wherein at least one tube further comprises one or more internal support structures. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 49 of 52
The apparatus of Claim 1, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable 5 to conduct heat away from the circuit board.
The apparatus of Claim 1, further comprising a capacitor formed within the circuit board, the capacitor comprising: 10 a first layer of graphene; a second layer of graphene; and a layer of polycrystalline diamond located between the first and second layers of graphene.
The apparatus of Claim 1, further comprising cooling tubes formed within the circuit board, the cooling tubes configured to transmit a liquid through at least a portion of the circuit board in order to conduct heat away from the circuit board. 20 Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-0148 1) 50 of 52
The apparatus of C laim 1, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
A method comprising: utilizing a three-dimensional (3D) printer to deposit a plurality of layers of poly(hydridocarbyne) and poly(methylsilyne), wherein: 5 the plurality of layers of poly(hydridocarbyne) are deposited in the geometry of a cladding for an optical waveguide; and the plurality of layers of poly(methylsilyne) are deposited so as to form the shape of a core of the 10 optical waveguide; and heating the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) to a first temperature to form the optical waveguide, the optical waveguide being formed of a core of polycrystalline 15 silicon carbide surrounded by polycrystalline diamond after the heating of the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne).
The method of Claim 12, further comprising 20 depositing layers of poly(methylsilyne) at a termination of the optical waveguide in the geometry of a lens.
The method of Claim 12, wherein the first temperature is greater than or equal to 100 degrees 25 Celsius and less than or equal to 800 degrees Celsius.
The method of Claim 12, wherein the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) are heated to the first temperature within an inert 30 atmosphere. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 51 of 52
An apparatus comprising: a circuit board made of polycrystalline diamond; and 5 an optical waveguide formed within the circuit board, the waveguide terminating at one or more surfaces of the circuit board, the waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond.
The apparatus of Claim 16, the optical waveguide comprising a plurality of terminations that are arranged in a pattern on a particular surface of the circuit board to receive connections of a component that 15 is to be mounted to the circuit board.
The apparatus of Claim 16, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
The apparatus of Claim 16, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 16, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable to conduct heat away from the circuit board. 30 Active 17995935
Layer stacks claimed or described, ordered top of device to substrate.
polycrystalline diamond circuit board with graphene-lined tubes and optical waveguides
capacitor within circuit board
Materials described outside the worked examples.
polycrystalline diamond
graphene
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 4–5 nm | — |
Duration | 12–24 hours |
Patent
Atlas literature
Patent
US 9,402,322Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An apparatus comprising: 5 a circuit board made of polycrystalline diamond, the circuit board having been formed by thermolysis of layers of a preceramic polymer; a plurality of tubes formed within the circuit board and comprising a plurality of terminations at one or more 10 surfaces of the circuit board, each tube comprising a layer of graphene that is operable to permit each tube to conduct electrical current, each layer of graphene having been formed by thermolysis of the polycrystallilne diamond circuit board at a temperature greater than or 15 equal to 900 degrees Celsius; and a plurality of optical waveguides formed within the circuit board, each optical waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond, the polycrystalline diamond 20 having been formed by thermolysis of poly(hydridocarbyne), and the silicon carbide having been formed by thermolysis of poly(methylsilyne).
The apparatus of Claim 1, wherein the 25 preceramic polymer comprises one or more of poly(hydridocarbyne) and poly(methylsilyne). Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 48 of 52
The apparatus of Claim 1, wherein at least some SVG 14638686.03-04-2015.I₆V₉J₈L₆PXXIFW3.CLM14485261.6.410.668.2141.718.svg 0.167 5.77 Drawing Black and white pattern on a particular surface of the circuit board to receive connections of a component that is to be mounted 5 to the circuit board.
The apparatus of Claim 1, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 1, wherein at least some of the plurality of tubes are configured to be open to the atmosphere in order to equalize pressure between one or more of the plurality of tubes and the atmosphere.
The apparatus of Claim 1, wherein at least some of the plurality of tubes further comprise a layer of polycrystalline diamond that forms an outer surface of the tube, the layer of polycrystalline diamond being deposited over the layer of graphene.
The apparatus of Claim 1, wherein at least one tube further comprises one or more internal support structures. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 49 of 52
The apparatus of Claim 1, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable 5 to conduct heat away from the circuit board.
The apparatus of Claim 1, further comprising a capacitor formed within the circuit board, the capacitor comprising: 10 a first layer of graphene; a second layer of graphene; and a layer of polycrystalline diamond located between the first and second layers of graphene.
The apparatus of Claim 1, further comprising cooling tubes formed within the circuit board, the cooling tubes configured to transmit a liquid through at least a portion of the circuit board in order to conduct heat away from the circuit board. 20 Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-0148 1) 50 of 52
The apparatus of C laim 1, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
A method comprising: utilizing a three-dimensional (3D) printer to deposit a plurality of layers of poly(hydridocarbyne) and poly(methylsilyne), wherein: 5 the plurality of layers of poly(hydridocarbyne) are deposited in the geometry of a cladding for an optical waveguide; and the plurality of layers of poly(methylsilyne) are deposited so as to form the shape of a core of the 10 optical waveguide; and heating the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) to a first temperature to form the optical waveguide, the optical waveguide being formed of a core of polycrystalline 15 silicon carbide surrounded by polycrystalline diamond after the heating of the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne).
The method of Claim 12, further comprising 20 depositing layers of poly(methylsilyne) at a termination of the optical waveguide in the geometry of a lens.
The method of Claim 12, wherein the first temperature is greater than or equal to 100 degrees 25 Celsius and less than or equal to 800 degrees Celsius.
The method of Claim 12, wherein the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) are heated to the first temperature within an inert 30 atmosphere. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 51 of 52
An apparatus comprising: a circuit board made of polycrystalline diamond; and 5 an optical waveguide formed within the circuit board, the waveguide terminating at one or more surfaces of the circuit board, the waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond.
The apparatus of Claim 16, the optical waveguide comprising a plurality of terminations that are arranged in a pattern on a particular surface of the circuit board to receive connections of a component that 15 is to be mounted to the circuit board.
The apparatus of Claim 16, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
The apparatus of Claim 16, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 16, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable to conduct heat away from the circuit board. 30 Active 17995935
Layer stacks claimed or described, ordered top of device to substrate.
polycrystalline diamond circuit board with graphene-lined tubes and optical waveguides
capacitor within circuit board
Materials described outside the worked examples.
polycrystalline diamond
graphene
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 4–5 nm | — |
Duration | 12–24 hours |
Patent
Atlas literature
Patent
US 9,402,322Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An apparatus comprising: 5 a circuit board made of polycrystalline diamond, the circuit board having been formed by thermolysis of layers of a preceramic polymer; a plurality of tubes formed within the circuit board and comprising a plurality of terminations at one or more 10 surfaces of the circuit board, each tube comprising a layer of graphene that is operable to permit each tube to conduct electrical current, each layer of graphene having been formed by thermolysis of the polycrystallilne diamond circuit board at a temperature greater than or 15 equal to 900 degrees Celsius; and a plurality of optical waveguides formed within the circuit board, each optical waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond, the polycrystalline diamond 20 having been formed by thermolysis of poly(hydridocarbyne), and the silicon carbide having been formed by thermolysis of poly(methylsilyne).
The apparatus of Claim 1, wherein the 25 preceramic polymer comprises one or more of poly(hydridocarbyne) and poly(methylsilyne). Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 48 of 52
The apparatus of Claim 1, wherein at least some SVG 14638686.03-04-2015.I₆V₉J₈L₆PXXIFW3.CLM14485261.6.410.668.2141.718.svg 0.167 5.77 Drawing Black and white pattern on a particular surface of the circuit board to receive connections of a component that is to be mounted 5 to the circuit board.
The apparatus of Claim 1, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 1, wherein at least some of the plurality of tubes are configured to be open to the atmosphere in order to equalize pressure between one or more of the plurality of tubes and the atmosphere.
The apparatus of Claim 1, wherein at least some of the plurality of tubes further comprise a layer of polycrystalline diamond that forms an outer surface of the tube, the layer of polycrystalline diamond being deposited over the layer of graphene.
The apparatus of Claim 1, wherein at least one tube further comprises one or more internal support structures. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 49 of 52
The apparatus of Claim 1, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable 5 to conduct heat away from the circuit board.
The apparatus of Claim 1, further comprising a capacitor formed within the circuit board, the capacitor comprising: 10 a first layer of graphene; a second layer of graphene; and a layer of polycrystalline diamond located between the first and second layers of graphene.
The apparatus of Claim 1, further comprising cooling tubes formed within the circuit board, the cooling tubes configured to transmit a liquid through at least a portion of the circuit board in order to conduct heat away from the circuit board. 20 Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-0148 1) 50 of 52
The apparatus of C laim 1, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
A method comprising: utilizing a three-dimensional (3D) printer to deposit a plurality of layers of poly(hydridocarbyne) and poly(methylsilyne), wherein: 5 the plurality of layers of poly(hydridocarbyne) are deposited in the geometry of a cladding for an optical waveguide; and the plurality of layers of poly(methylsilyne) are deposited so as to form the shape of a core of the 10 optical waveguide; and heating the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) to a first temperature to form the optical waveguide, the optical waveguide being formed of a core of polycrystalline 15 silicon carbide surrounded by polycrystalline diamond after the heating of the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne).
The method of Claim 12, further comprising 20 depositing layers of poly(methylsilyne) at a termination of the optical waveguide in the geometry of a lens.
The method of Claim 12, wherein the first temperature is greater than or equal to 100 degrees 25 Celsius and less than or equal to 800 degrees Celsius.
The method of Claim 12, wherein the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) are heated to the first temperature within an inert 30 atmosphere. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 51 of 52
An apparatus comprising: a circuit board made of polycrystalline diamond; and 5 an optical waveguide formed within the circuit board, the waveguide terminating at one or more surfaces of the circuit board, the waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond.
The apparatus of Claim 16, the optical waveguide comprising a plurality of terminations that are arranged in a pattern on a particular surface of the circuit board to receive connections of a component that 15 is to be mounted to the circuit board.
The apparatus of Claim 16, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
The apparatus of Claim 16, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 16, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable to conduct heat away from the circuit board. 30 Active 17995935
Layer stacks claimed or described, ordered top of device to substrate.
polycrystalline diamond circuit board with graphene-lined tubes and optical waveguides
capacitor within circuit board
Materials described outside the worked examples.
polycrystalline diamond
graphene
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 4–5 nm | — |
Duration | 12–24 hours |
Patent
Atlas literature
Patent
US 9,402,322Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An apparatus comprising: 5 a circuit board made of polycrystalline diamond, the circuit board having been formed by thermolysis of layers of a preceramic polymer; a plurality of tubes formed within the circuit board and comprising a plurality of terminations at one or more 10 surfaces of the circuit board, each tube comprising a layer of graphene that is operable to permit each tube to conduct electrical current, each layer of graphene having been formed by thermolysis of the polycrystallilne diamond circuit board at a temperature greater than or 15 equal to 900 degrees Celsius; and a plurality of optical waveguides formed within the circuit board, each optical waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond, the polycrystalline diamond 20 having been formed by thermolysis of poly(hydridocarbyne), and the silicon carbide having been formed by thermolysis of poly(methylsilyne).
The apparatus of Claim 1, wherein the 25 preceramic polymer comprises one or more of poly(hydridocarbyne) and poly(methylsilyne). Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 48 of 52
The apparatus of Claim 1, wherein at least some SVG 14638686.03-04-2015.I₆V₉J₈L₆PXXIFW3.CLM14485261.6.410.668.2141.718.svg 0.167 5.77 Drawing Black and white pattern on a particular surface of the circuit board to receive connections of a component that is to be mounted 5 to the circuit board.
The apparatus of Claim 1, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 1, wherein at least some of the plurality of tubes are configured to be open to the atmosphere in order to equalize pressure between one or more of the plurality of tubes and the atmosphere.
The apparatus of Claim 1, wherein at least some of the plurality of tubes further comprise a layer of polycrystalline diamond that forms an outer surface of the tube, the layer of polycrystalline diamond being deposited over the layer of graphene.
The apparatus of Claim 1, wherein at least one tube further comprises one or more internal support structures. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 49 of 52
The apparatus of Claim 1, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable 5 to conduct heat away from the circuit board.
The apparatus of Claim 1, further comprising a capacitor formed within the circuit board, the capacitor comprising: 10 a first layer of graphene; a second layer of graphene; and a layer of polycrystalline diamond located between the first and second layers of graphene.
The apparatus of Claim 1, further comprising cooling tubes formed within the circuit board, the cooling tubes configured to transmit a liquid through at least a portion of the circuit board in order to conduct heat away from the circuit board. 20 Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-0148 1) 50 of 52
The apparatus of C laim 1, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
A method comprising: utilizing a three-dimensional (3D) printer to deposit a plurality of layers of poly(hydridocarbyne) and poly(methylsilyne), wherein: 5 the plurality of layers of poly(hydridocarbyne) are deposited in the geometry of a cladding for an optical waveguide; and the plurality of layers of poly(methylsilyne) are deposited so as to form the shape of a core of the 10 optical waveguide; and heating the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) to a first temperature to form the optical waveguide, the optical waveguide being formed of a core of polycrystalline 15 silicon carbide surrounded by polycrystalline diamond after the heating of the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne).
The method of Claim 12, further comprising 20 depositing layers of poly(methylsilyne) at a termination of the optical waveguide in the geometry of a lens.
The method of Claim 12, wherein the first temperature is greater than or equal to 100 degrees 25 Celsius and less than or equal to 800 degrees Celsius.
The method of Claim 12, wherein the plurality of layers of poly(hydridocarbyne) and poly(methylsilyne) are heated to the first temperature within an inert 30 atmosphere. Active 17995935 ATTORNEY'S DOCKET PATENT APPLICATION 068527.0189 (TA-01481) 51 of 52
An apparatus comprising: a circuit board made of polycrystalline diamond; and 5 an optical waveguide formed within the circuit board, the waveguide terminating at one or more surfaces of the circuit board, the waveguide comprising a core of polycrystalline silicon carbide surrounded by polycrystalline diamond.
The apparatus of Claim 16, the optical waveguide comprising a plurality of terminations that are arranged in a pattern on a particular surface of the circuit board to receive connections of a component that 15 is to be mounted to the circuit board.
The apparatus of Claim 16, wherein the polycrystalline diamond comprises hexagonal polycrystalline diamond.
The apparatus of Claim 16, wherein the optical waveguide terminates in a lens comprising polycrystalline silicon carbide.
The apparatus of Claim 16, further comprising a plurality of heat sink fins formed on a surface of the circuit board, the plurality of fins made of polycrystalline diamond, the plurality of fins operable to conduct heat away from the circuit board. 30 Active 17995935
Layer stacks claimed or described, ordered top of device to substrate.
polycrystalline diamond circuit board with graphene-lined tubes and optical waveguides
capacitor within circuit board
Materials described outside the worked examples.
polycrystalline diamond
graphene
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 4–5 nm | — |
Duration | 12–24 hours |
optical waveguide formed by 3D printing and thermolysis
polycrystalline diamond circuit board with optical waveguide
polycrystalline silicon carbide
SiC
poly(hydridocarbyne)
poly(methylsilyne)
| — |
Thickness | ≤ 30 nm | — |
optical waveguide formed by 3D printing and thermolysis
polycrystalline diamond circuit board with optical waveguide
polycrystalline silicon carbide
SiC
poly(hydridocarbyne)
poly(methylsilyne)
| — |
Thickness | ≤ 30 nm | — |
optical waveguide formed by 3D printing and thermolysis
polycrystalline diamond circuit board with optical waveguide
polycrystalline silicon carbide
SiC
poly(hydridocarbyne)
poly(methylsilyne)
| — |
Thickness | ≤ 30 nm | — |
optical waveguide formed by 3D printing and thermolysis
polycrystalline diamond circuit board with optical waveguide
polycrystalline silicon carbide
SiC
poly(hydridocarbyne)
poly(methylsilyne)
| — |
Thickness | ≤ 30 nm | — |