Patents by Inventor Scott A. Bell
Scott A. Bell 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: 10593688Abstract: A semiconductor device having a substrate, a dielectric layer over the substrate, a first gate conductor, an inter-gate dielectric structure and a second gate conductor is disclosed. A gate dielectric structure is disposed between the first gate conductor and the dielectric layer, and may include two or more dielectric films disposed in an alternating manner. The inter-gate dielectric structure may be disposed between the first gate conductor and the second gate conductor, and may include two or more dielectric films disposed in an alternating manner. The second gate conductor is formed in an L shape such that the second gate has a relatively low aspect ratio, which allows for a reduction in spacing between adjacent gates, while maintaining the required electrical isolation between the gates and contacts that may subsequently be formed.Type: GrantFiled: June 29, 2018Date of Patent: March 17, 2020Assignee: Cypress Semiconductor CorporationInventors: Scott A. Bell, Chun Chen, Lei Xue, Shenqing Fang, Angela T. Hui
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Publication number: 20180358367Abstract: A semiconductor device having a substrate, a dielectric layer over the substrate, a first gate conductor, an inter-gate dielectric structure and a second gate conductor is disclosed. A gate dielectric structure is disposed between the first gate conductor and the dielectric layer, and may include two or more dielectric films disposed in an alternating manner. The inter-gate dielectric structure may be disposed between the first gate conductor and the second gate conductor, and may include two or more dielectric films disposed in an alternating manner. The second gate conductor is formed in an L shape such that the second gate has a relatively low aspect ratio, which allows for a reduction in spacing between adjacent gates, while maintaining the required electrical isolation between the gates and contacts that may subsequently be formed.Type: ApplicationFiled: June 29, 2018Publication date: December 13, 2018Applicant: Cypress Semiconductor CorporationInventors: Scott A. Bell, Chun Chen, Lei Xue, Shenqing Fang, Angela T. Hui
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Publication number: 20180323208Abstract: A method of forming a vertical non-volatile (NV) memory device such as 3-D NAND flash memory includes forming a vertical NV memory cell string within an opening disposed in a stack of alternating layers of a first layer and a second layer over a substrate, and dividing the vertical NV memory cell string into two halves with a first vertical deep trench and an isolation dielectric pillar formed in the first vertical deep trench, such that memory bit density of the divided vertical NV memory cell strings double the memory bits of the device.Type: ApplicationFiled: June 27, 2018Publication date: November 8, 2018Applicant: Cypress Semiconductor CorporationInventors: Rinji Sugino, Scott A. Bell, Lei Xue
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Patent number: 9673206Abstract: Methods and apparatus for manufacturing semiconductor devices, and such semiconductor devices, are described. According to various aspects of the disclosure, a semiconductor device comprises a first region, a second region, a first polysilicon region, and a second polysilicon region. The first polysilicon region is formed over the first and second regions of the semiconductor device. Portions of the first and polysilicon layers that are uncovered by either of a first mask and a second mask are removed. The first mask is formed on the first polysilicon layer and the second mask is formed on the second polysilicon layer in the first region and not on in the second region.Type: GrantFiled: April 19, 2016Date of Patent: June 6, 2017Assignee: Cypress Semiconductor CorporationInventors: Scott A. Bell, Angela Tai Hui, Simon S. Chan
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Publication number: 20160300844Abstract: Methods and apparatus for manufacturing semiconductor devices, and such semiconductor devices, are described. According to various aspects of the disclosure, a semiconductor device comprises a first region, a second region, a first polysilicon region, and a second polysilicon region. The first polysilicon region is formed over the first and second regions of the semiconductor device. Portions of the first and polysilicon layers that are uncovered by either of a first mask and a second mask are removed. The first mask is formed on the first polysilicon layer and the second mask is formed on the second polysilicon layer in the first region and not on in the second region.Type: ApplicationFiled: April 19, 2016Publication date: October 13, 2016Inventors: Scott A. Bell, Angela Tai Hui, Simon S. Chan
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Patent number: 9318498Abstract: Methods and apparatus for manufacturing semiconductor devices, and such semiconductor devices, are described. According to various aspects of the disclosure, a semiconductor device can be manufactured by forming a core region of the semiconductor device and forming a periphery region of the semiconductor device. A first polysilicon region can then be formed over the core and periphery regions of the semiconductor device. A first mask is formed on the first poly silicon layer and a second polysilicon layer is disposed such that the second polysilicon layer covers the first mask. A second mask can then be formed on the second polysilicon layer. After forming the second mask, portions of the first and second polysilicon layers that are uncovered by either the first or second masks are removed.Type: GrantFiled: January 7, 2013Date of Patent: April 19, 2016Assignee: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Scott A. Bell, Angela Tai Hui, Simon S. Chan
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Patent number: 8815727Abstract: A method for forming an integrated circuit system is provided including forming a semi-conducting layer over a substrate, forming a spacer stack having a gap filler adjacent to the semi-conducting layer and a inter-layer dielectric over the gap filler, forming a transition layer having a recess over the semi-conducting layer and adjacent to the spacer stack, and forming a metal layer in the recess.Type: GrantFiled: October 4, 2012Date of Patent: August 26, 2014Assignees: Advanced Micro Devices, Inc., Spansion LLCInventors: Angela T. Hui, Mark S. Chang, Kuo-Tung Chang, Scott A. Bell
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Publication number: 20140193972Abstract: Methods and apparatus for manufacturing semiconductor devices, and such semiconductor devices, are described. According to various aspects of the disclosure, a semiconductor device can be manufactured by forming a core region of the semiconductor device and forming a periphery region of the semiconductor device. A first polysilicon region can then be formed over the core and periphery regions of the semiconductor device. A first mask is formed on the first poly silicon layer and a second polysilicon layer is disposed such that the second polysilicon layer covers the first mask. A second mask can then be formed on the second polysilicon layer. After forming the second mask, portions of the first and second polysilicon layers that are uncovered by either the first or second masks are removed.Type: ApplicationFiled: January 7, 2013Publication date: July 10, 2014Applicant: Spansion LLCInventors: Scott A. BELL, Angela Tai HUI, Simon S. CHAN
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Patent number: 8629535Abstract: A method of forming an integrated circuit includes providing a buffer layer comprising a dielectric material above a layer of conductive material and providing a layer of mask material above the buffer layer. The mask material comprises amorphous carbon. The method also includes removing a portion of the buffer layer and the layer of mask material to form a mask. A feature is formed in the layer of conductive material according to the mask.Type: GrantFiled: September 23, 2011Date of Patent: January 14, 2014Assignee: GlobalFoundries Inc.Inventors: Richard J. Huang, Scott A. Bell, Srikanteswara Dakshina-Murthy, Philip A. Fisher, Richard C. Nguyen, Cyrus E. Tabery, Lu You
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Patent number: 8283718Abstract: A method for forming an integrated circuit system is provided including forming a semi-conducting layer over a substrate, forming a spacer stack having a gap filler adjacent to the semi-conducting layer and a inter-layer dielectric over the gap filler, forming a transition layer having a recess over the semi-conducting layer and adjacent to the spacer stack, and forming a metal layer in the recess.Type: GrantFiled: December 16, 2006Date of Patent: October 9, 2012Assignees: Spansion LLC, Advanced Micro Devices, Inc.Inventors: Angela T. Hui, Mark S. Chang, Kuo-Tung Chang, Scott A. Bell
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Publication number: 20120007221Abstract: A method of forming an integrated circuit includes providing a buffer layer comprising a dielectric material above a layer of conductive material and providing a layer of mask material above the buffer layer. The mask material comprises amorphous carbon. The method also includes removing a portion of the buffer layer and the layer of mask material to form a mask. A feature is formed in the layer of conductive material according to the mask.Type: ApplicationFiled: September 23, 2011Publication date: January 12, 2012Applicant: GLOBALFOUNDRIES Inc.Inventors: Richard J. Huang, Scott A. Bell, Srikanteswara Dakshina-Murthy, Philip A. Fisher, Richard C. Nguyen, Cyrus E. Tabery, Lu You
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Patent number: 7675104Abstract: An integrated circuit memory system that includes: providing a substrate; forming a silicon rich charge storage layer over the substrate; forming a first isolation trench through the silicon rich charge storage layer in a first direction; and forming a second isolation trench through the silicon rich charge storage layer in a second direction.Type: GrantFiled: July 31, 2006Date of Patent: March 9, 2010Assignees: Spansion LLC, Advanced Micro Devices, Inc.Inventors: Amol Ramesh Joshi, Harpreet Sachar, YouSeok Suh, Shenqing Fang, Chih-Yuh Yang, Lovejeet Singh, David H. Matsumoto, Hidehiko Shiraiwa, Kuo-Tung Chang, Scott A. Bell, Allison Holbrook, Satoshi Torii
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Patent number: 7659166Abstract: Systems and methods are described that facilitate integrating ArF core patterning of floating gate structures in a flash memory device followed by KrF periphery gate patterning using a hard mask comprising a material such as amorphous carbon to facilitate core gate construction. The amorphous carbon hard mask can facilitate preparing such core gate structures while protecting periphery gate stacks such that the periphery stacks are ready for immediate KrF lithography upon completion of core gate formation without requiring additional resist deposition between core and periphery etches.Type: GrantFiled: April 11, 2007Date of Patent: February 9, 2010Assignee: GLOBALFOUNDRIES Inc.Inventors: Marina V. Plat, Scott A. Bell
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Patent number: 7521304Abstract: A method of forming an integrated circuit includes providing a buffer layer comprising a dielectric material above a layer of conductive material and providing a layer of mask material above the buffer layer. The mask material comprises amorphous carbon. The method also includes removing a portion of the buffer layer and the layer of mask material to form a mask. A feature is formed in the layer of conductive material according to the mask.Type: GrantFiled: August 29, 2002Date of Patent: April 21, 2009Assignee: Advanced Micro Devices, Inc.Inventors: Richard J. Huang, Scott A. Bell, Srikanteswara Dakshina-Murthy, Philip A. Fisher, Richard C. Nguyen, Cyrus E. Tabery, Lu You
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Publication number: 20080254607Abstract: Systems and methods are described that facilitate integrating ArF core patterning of floating gate structures in a flash memory device followed by KrF periphery gate patterning using a hard mask comprising a material such as amorphous carbon to facilitate core gate construction. The amorphous carbon hard mask can facilitate preparing such core gate structures while protecting periphery gate stacks such that the periphery stacks are ready for immediate KrF lithography upon completion of core gate formation without requiring additional resist deposition between core and periphery etches.Type: ApplicationFiled: April 11, 2007Publication date: October 16, 2008Applicant: ADVANCED MICRO DEVICES, INC.Inventors: Marina V. Plat, Scott A. Bell
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Publication number: 20080142873Abstract: A method for forming an integrated circuit system is provided including forming a semi-conducting layer over a substrate, forming a spacer stack having a gap filler adjacent to the semi-conducting layer and a inter-layer dielectric over the gap filler, forming a transition layer having a recess over the semi-conducting layer and adjacent to the spacer stack, and forming a metal layer in the recess.Type: ApplicationFiled: December 16, 2006Publication date: June 19, 2008Applicants: SPANSION LLC, ADVANCED MICRO DEVICES, INC.Inventors: Angela T. Hui, Mark S. Chang, Kuo-Tung Chang, Scott A. Bell
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Patent number: 7368225Abstract: There is provided a method of making plurality of features in a first layer. A photoresist layer is formed over the first layer. Dense regions in the photoresist layer are exposed through a first mask under a first set of illumination conditions. Isolated regions in the photoresist layer are exposed through a second mask different from the first mask under a second set of illumination conditions different from the first set of illumination conditions. The exposed photoresist layer is patterned and then the first layer is patterned using the patterned photoresist layer as a mask.Type: GrantFiled: August 24, 2004Date of Patent: May 6, 2008Assignee: Advanced Micro Devices, Inc.Inventors: Ramkumar Subramanian, Scott A. Bell, Todd P. Lukanc, Marina V. Plat, Uzodinma Okoroanyanwu, Hung-Eil Kim
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Patent number: 7361588Abstract: A method of reducing critical dimensions of a feature in a anti-reflective coating layer structure can utilize a polymerizing agent. The anti-reflective coating structure can be utilized to form various integrated circuit structures. The anti-reflective coating can be utilized to form gate stacks comprised of polysilicon and a dielectric layer, conductive lines, or other IC structure. The polymerizing agent can include carbon, hydrogen and fluorine.Type: GrantFiled: April 4, 2005Date of Patent: April 22, 2008Assignee: Advanced Micro Devices, Inc.Inventors: Phillip L. Jones, Mark S. Chang, Scott A. Bell
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Publication number: 20080023751Abstract: An integrated circuit memory system that includes: providing a substrate; forming a silicon rich charge storage layer over the substrate; forming a first isolation trench through the silicon rich charge storage layer in a first direction; and forming a second isolation trench through the silicon rich charge storage layer in a second direction.Type: ApplicationFiled: July 31, 2006Publication date: January 31, 2008Applicants: SPANSION LLC, ADVANCED MICRO DEVICES, INC.Inventors: Amol Ramesh Joshi, Harpreet Sachar, YouSeok Suh, Shenqing Fang, Chih-Yuh Yang, Lovejeet Singh, David H. Matsumoto, Hidehiko Shiraiwa, Kuo-Tung Chang, Scott A. Bell, Allison Holbrook, Satoshi Torii
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Patent number: 7285499Abstract: A method includes forming a group of first structures on a semiconductor device and forming spacers adjacent side surfaces of each of the first structures to form a group of second structures. The method further includes using the group of second structures to form at least one sub-lithographic opening in a material layer located below the group of second structures.Type: GrantFiled: May 12, 2005Date of Patent: October 23, 2007Assignee: Advanced Micro Devices, Inc.Inventors: Scott A. Bell, Phillip Lawrence Jones, Angela T. Hui