Patents by Inventor Leathen Shi
Leathen Shi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10811305Abstract: A multi-layer wafer and method of manufacturing such wafer are provided. The method comprises applying a stress compensating oxide layer to each of two heterogeneous wafers, applying at least one bonding oxide layer to at least one of the two heterogeneous wafers, chemical-mechanical polishing the at least one bonding oxide layer, and low temperature bonding the two heterogeneous wafers to form a multi-layer wafer pair. The multi-layer wafer comprises two heterogeneous wafers, each of the heterogeneous wafers having a stress compensating oxide layer and at least one bonding oxide layer applied to at least one of the two heterogeneous wafers. The two heterogeneous wafers are low temperature bonded together to form the multi-layer wafer.Type: GrantFiled: September 22, 2016Date of Patent: October 20, 2020Assignee: International Business Machines CorporationInventors: Li-Wen Hung, John U. Knickerbocker, Leathen Shi, Cornelia Tsang Yang, Bucknell C. Webb
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Patent number: 10615139Abstract: A wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: GrantFiled: April 5, 2018Date of Patent: April 7, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Patent number: 10211178Abstract: A wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: GrantFiled: April 19, 2017Date of Patent: February 19, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Publication number: 20180226374Abstract: A wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: ApplicationFiled: April 5, 2018Publication date: August 9, 2018Inventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Patent number: 10020279Abstract: A wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: GrantFiled: July 13, 2016Date of Patent: July 10, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Publication number: 20180082888Abstract: A multi-layer wafer and method of manufacturing such wafer are provided. The method comprises applying a stress compensating oxide layer to each of two heterogeneous wafers, applying at least one bonding oxide layer to at least one of the two heterogeneous wafers, chemical-mechanical polishing the at least one bonding oxide layer, and low temperature bonding the two heterogeneous wafers to form a multi-layer wafer pair. The multi-layer wafer comprises two heterogeneous wafers, each of the heterogeneous wafers having a stress compensating oxide layer and at least one bonding oxide layer applied to at least one of the two heterogeneous wafers. The two heterogeneous wafers are low temperature bonded together to form the multi-layer wafer.Type: ApplicationFiled: September 22, 2016Publication date: March 22, 2018Inventors: Li-Wen HUNG, John U. KNICKERBOCKER, Leathen SHI, Cornelia TSANG YANG, Bucknell C. WEBB
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Patent number: 9865469Abstract: A method for performing epitaxial lift-off allowing reuse of a III-V substrate to grow III-V devices is presented. A sample is received comprising a growth substrate with a top surface, a sacrificial layer on the top surface, and a device layer on the sacrificial layer. This substrate is supported inside a container and the container is filled with a wet etchant such that the wet etchant progressively etches away the sacrificial layer and the device layer lifts away from the growth substrate. While filling the container with the wet etchant, the sample is supported in the container such that the top surface of the growth substrate is non-parallel with an uppermost surface of the wet etchant. Performed in this manner, the lift-off process requires little individual setup of the sample, and is capable of batch processing and high throughput.Type: GrantFiled: February 13, 2017Date of Patent: January 9, 2018Assignee: International Business Machines CorporationInventors: Cheng-Wei Cheng, Ning Li, Devendra K. Sadana, Leathen Shi, Kuen-Ting Shiu
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Publication number: 20170221850Abstract: A wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: ApplicationFiled: April 19, 2017Publication date: August 3, 2017Inventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Publication number: 20170154783Abstract: A method for performing epitaxial lift-off allowing reuse of a III-V substrate to grow III-V devices is presented. A sample is received comprising a growth substrate with a top surface, a sacrificial layer on the top surface, and a device layer on the sacrificial layer. This substrate is supported inside a container and the container is filled with a wet etchant such that the wet etchant progressively etches away the sacrificial layer and the device layer lifts away from the growth substrate. While filling the container with the wet etchant, the sample is supported in the container such that the top surface of the growth substrate is non-parallel with an uppermost surface of the wet etchant. Performed in this manner, the lift-off process requires little individual setup of the sample, and is capable of batch processing and high throughput.Type: ApplicationFiled: February 13, 2017Publication date: June 1, 2017Inventors: Cheng-Wei Cheng, Ning Li, Devendra K. Sadana, Leathen Shi, Kuen-Ting Shiu
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Patent number: 9653308Abstract: A method for performing epitaxial lift-off allowing reuse of a III-V substrate to grow III-V devices is presented. A sample is received comprising a growth substrate with a top surface, a sacrificial layer on the top surface, and a device layer on the sacrificial layer. This substrate is supported inside a container and the container is filled with a wet etchant such that the wet etchant progressively etches away the sacrificial layer and the device layer lifts away from the growth substrate. While filling the container with the wet etchant, the sample is supported in the container such that the top surface of the growth substrate is non-parallel with an uppermost surface of the wet etchant. Performed in this manner, the lift-off process requires little individual setup of the sample, and is capable of batch processing and high throughput.Type: GrantFiled: August 28, 2015Date of Patent: May 16, 2017Assignee: International Business Machines CorporationInventors: Cheng-Wei Cheng, Ning Li, Devendra K. Sadana, Leathen Shi, Kuen-Ting Shiu
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Publication number: 20170062232Abstract: A method for performing epitaxial lift-off allowing reuse of a III-V substrate to grow III-V devices is presented. A sample is received comprising a growth substrate with a top surface, a sacrificial layer on the top surface, and a device layer on the sacrificial layer. This substrate is supported inside a container and the container is filled with a wet etchant such that the wet etchant progressively etches away the sacrificial layer and the device layer lifts away from the growth substrate. While filling the container with the wet etchant, the sample is supported in the container such that the top surface of the growth substrate is non-parallel with an uppermost surface of the wet etchant. Performed in this manner, the lift-off process requires little individual setup of the sample, and is capable of batch processing and high throughput.Type: ApplicationFiled: August 28, 2015Publication date: March 2, 2017Inventors: Cheng-Wei Cheng, Ning Li, Devendra K. Sadana, Leathen Shi, Kuen-Ting Shiu
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Patent number: 9536853Abstract: According to at least one embodiment of the present invention, a wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: GrantFiled: November 18, 2014Date of Patent: January 3, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Publication number: 20160322324Abstract: A wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: ApplicationFiled: July 13, 2016Publication date: November 3, 2016Inventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Patent number: 9355936Abstract: Methods for bonding substrate surfaces, bonded substrate assemblies, and design structures for a bonded substrate assembly. Device structures of a product chip are formed using a first surface of a device substrate. A wiring layer of an interconnect structure for the device structures is formed on the product chip. The wiring layer is planarized. A temporary handle wafer is removably bonded to the planarized wiring layer. In response to removably bonding the temporary handle wafer to the planarized first wiring layer, a second surface of the device substrate, which is opposite to the first surface, is bonded to a final handle substrate. The temporary handle wafer is then removed from the assembly.Type: GrantFiled: April 1, 2014Date of Patent: May 31, 2016Assignee: GLOBALFOUNDRIES INC.Inventors: Edward C. Cooney, III, James S. Dunn, Dale W. Martin, Charles S. Musante, BethAnn Rainey Lawrence, Leathen Shi, Edmund J. Sprogis, Cornelia K. Tsang
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Publication number: 20160141263Abstract: According to at least one embodiment of the present invention, a wafer-to-wafer semiconductor device includes a first wafer substrate having a first bonding layer formed on a first bulk substrate layer. A second wafer substrate includes a second bonding layer formed on a second bulk substrate layer. The second bonding layer is bonded to the first bonding layer to define a bonding interface. At least one of the first wafer substrate and the second wafer substrate includes a crack-arresting film layer configured to increase a bonding energy of the bonding interface.Type: ApplicationFiled: November 18, 2014Publication date: May 19, 2016Inventors: Wei Lin, Leathen Shi, Spyridon Skordas, Kevin R. Winstel
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Patent number: 8927405Abstract: A method of forming a semiconductor device is provided. The method includes providing a structure including, a handle substrate, a buried boron nitride layer located above an uppermost surface of the handle substrate, a buried oxide layer located on an uppermost surface of the buried boron nitride layer, and a top semiconductor layer located on an uppermost surface of the buried oxide layer. Next, a first semiconductor pad, a second semiconductor pad and a plurality of semiconductor nanowires connecting the first semiconductor pad and the second semiconductor pad in a ladder-like configuration are patterned into the top semiconductor layer. The semiconductor nanowires are suspended by removing a portion of the buried oxide layer from beneath each semiconductor nanowire, wherein a portion of the uppermost surface of the buried boron nitride layer is exposed. Next, a gate all-around field effect transistor is formed.Type: GrantFiled: December 18, 2012Date of Patent: January 6, 2015Assignee: International Business Machines CorporationInventors: Guy Cohen, Michael A. Guillorn, Alfred Grill, Leathen Shi
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Patent number: 8927968Abstract: A method of forming a semiconductor device is provided. The method includes providing a structure including, a handle substrate, a buried boron nitride layer located above an uppermost surface of the handle substrate, a buried oxide layer located on an uppermost surface of the buried boron nitride layer, and a top semiconductor layer located on an uppermost surface of the buried oxide layer. Next, a first semiconductor pad, a second semiconductor pad and a plurality of semiconductor nanowires connecting the first semiconductor pad and the second semiconductor pad in a ladder-like configuration are patterned into the top semiconductor layer. The semiconductor nanowires are suspended by removing a portion of the buried oxide layer from beneath each semiconductor nanowire, wherein a portion of the uppermost surface of the buried boron nitride layer is exposed. Next, a gate all-around field effect transistor is formed.Type: GrantFiled: August 26, 2013Date of Patent: January 6, 2015Assignee: International Business Machines CorporationInventors: Guy Cohen, Michael A. Guillorn, Alfred Grill, Leathen Shi
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Patent number: 8877606Abstract: A semiconductor substrate structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer; an insulator with etch stop characteristics formed on the electrically conductive layer; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A scheme of subsequently building a dual-depth shallow trench isolation with the deeper STI in the back gate layer self-aligned to the shallower STI in the active region in such a semiconductor substrate is also disclosed.Type: GrantFiled: January 16, 2012Date of Patent: November 4, 2014Assignee: International Business Machines CorporationInventors: Robert H. Dennard, David R. Greenberg, Amlan Majumdar, Leathen Shi, Jeng-Bang Yau
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Publication number: 20140209908Abstract: Methods for bonding substrate surfaces, bonded substrate assemblies, and design structures for a bonded substrate assembly. Device structures of a product chip are formed using a first surface of a device substrate. A wiring layer of an interconnect structure for the device structures is formed on the product chip. The wiring layer is planarized. A temporary handle wafer is removably bonded to the planarized wiring layer. In response to removably bonding the temporary handle wafer to the planarized first wiring layer, a second surface of the device substrate, which is opposite to the first surface, is bonded to a final handle substrate. The temporary handle wafer is then removed from the assembly.Type: ApplicationFiled: April 1, 2014Publication date: July 31, 2014Applicant: International Business Machines CorporationInventors: Edward C. Cooney, III, James S. Dunn, Dale W. Martin, Charles S. Musante, BethAnn Rainey Lawrence, Leathen Shi, Edmund J. Sprogis, Cornelia K. Tsang
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Patent number: 8778737Abstract: Methods for bonding substrate surfaces, bonded substrate assemblies, and design structures for a bonded substrate assembly. Device structures of a product chip are formed using a first surface of a device substrate. A wiring layer of an interconnect structure for the device structures is formed on the product chip. The wiring layer is planarized. A temporary handle wafer is removably bonded to the planarized wiring layer. In response to removably bonding the temporary handle wafer to the planarized first wiring layer, a second surface of the device substrate, which is opposite to the first surface, is bonded to a final handle substrate. The temporary handle wafer is then removed from the assembly.Type: GrantFiled: October 31, 2011Date of Patent: July 15, 2014Assignee: International Business Machines CorporationInventors: Edward C. Cooney, III, James S. Dunn, Dale W. Martin, Charles F. Musante, BethAnn Rainey, Leathen Shi, Edmund J. Sprogis, Cornelia K. Tsang