Patents by Inventor Wayne Bather
Wayne Bather 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).
-
Publication number: 20220102553Abstract: A method for fabricating a transistor on a semiconductor wafer includes providing a partial transistor containing a gate stack, extension regions, and source/drain sidewalls. The method also includes performing a source/drain implant of the semiconductor wafer, forming a cap layer over the semiconductor wafer, and performing a source/drain anneal. In addition, the method includes performing a damage implant of the cap layer and removing the cap layer over the semiconductor wafer.Type: ApplicationFiled: December 13, 2021Publication date: March 31, 2022Inventors: Mahalingam Nandakumar, Wayne Bather, Narendra Singh Mehta
-
Publication number: 20170365715Abstract: A method for fabricating a transistor on a semiconductor wafer includes providing a partial transistor containing a gate stack, extension regions, and source/drain sidewalls, The method also includes performing a source/drain implant of the semiconductor wafer, forming a cap layer over the semiconductor wafer, and performing a source/drain anneal. In addition, the method includes performing a damage implant of the cap layer and removing the cap layer over the semiconductor wafer.Type: ApplicationFiled: August 10, 2017Publication date: December 21, 2017Inventors: Mahalingam Nandakumar, Wayne Bather, Narendra Singh Mehta
-
Patent number: 8859377Abstract: A method for fabricating a transistor on a semiconductor wafer includes providing a partial transistor containing a gate stack, extension regions, and source/drain sidewalls. The method also includes performing a source/drain implant of the semiconductor wafer, forming a cap layer over the semiconductor wafer, and performing a source/drain anneal. In addition, the method includes performing a damage implant of the cap layer and removing the cap layer over the semiconductor wafer.Type: GrantFiled: June 29, 2007Date of Patent: October 14, 2014Assignee: Texas Instruments IncorporatedInventors: Mahalingam Nandakumar, Wayne Bather, Narendra Singh Mehta
-
Publication number: 20100270622Abstract: The present invention provides a method for manufacturing a semiconductor device as well as a semiconductor device. The method, among other steps, may include forming a gate structure over a substrate, and forming a strain inducing sidewall spacer proximate a sidewall of the gate structure, the strain inducing sidewall configured to introduce strain in a channel region below the gate structure.Type: ApplicationFiled: July 7, 2010Publication date: October 28, 2010Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Mahalingam NANDAKUMAR, Wayne A. BATHER, Narendra Singh MEHTA, Lahir Shaik ADAM
-
Publication number: 20100252887Abstract: A method for fabricating a transistor on a semiconductor wafer includes providing a partial transistor containing a gate stack, extension regions, and source/drain sidewalls. The method also includes performing a source/drain implant of the semiconductor wafer, forming a cap layer over the semiconductor wafer, and performing a source/drain anneal. In addition, the method includes performing a damage implant of the cap layer and removing the cap layer over the semiconductor wafer.Type: ApplicationFiled: June 17, 2010Publication date: October 7, 2010Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Mahalingam Nandakumar, Wayne Bather, Narendra Singh Mehta
-
Patent number: 7772094Abstract: A method for semiconductor processing is provided, wherein a removal of one or more layers is aided by structurally weakening the one or more layers via ion implantation. A semiconductor substrate is provided having one or more primary layers formed thereon, and a secondary layer is formed over the one or more primary layers. One or more ion species are implanted into the secondary layer, therein structurally weakening the secondary layer, and a patterned photoresist layer is formed over the secondary layer. Respective portions of the secondary layer and the one or more primary layers that are not covered by the patterned photoresist layer are removed, and the patterned photoresist layer is further removed. At least another portion of the secondary layer is removed, wherein the structural weakening of the secondary layer increases a removal rate of the at least another portion of the secondary layer.Type: GrantFiled: December 29, 2008Date of Patent: August 10, 2010Assignee: Texas Instuments IncorporatedInventors: Mahalingam Nandakumar, Wayne Bather, Narendra Singh Mehta
-
Publication number: 20090170277Abstract: A method for semiconductor processing is provided, wherein a removal of one or more layers is aided by structurally weakening the one or more layers via ion implantation. A semiconductor substrate is provided having one or more primary layers formed thereon, and a secondary layer is formed over the one or more primary layers. One or more ion species are implanted into the secondary layer, therein structurally weakening the secondary layer, and a patterned photoresist layer is formed over the secondary layer. Respective portions of the secondary layer and the one or more primary layers that are not covered by the patterned photoresist layer are removed, and the patterned photoresist layer is further removed. At least another portion of the secondary layer is removed, wherein the structural weakening of the secondary layer increases a removal rate of the at least another portion of the secondary layer.Type: ApplicationFiled: December 29, 2008Publication date: July 2, 2009Applicant: Texas Instruments IncorporatedInventors: Mahalingam Nandakumar, Wayne Bather, Narendra Singh Mehta
-
Publication number: 20090004805Abstract: A method for fabricating a transistor on a semiconductor wafer includes providing a partial transistor containing a gate stack, extension regions, and source/drain sidewalls. The method also includes performing a source/drain implant of the semiconductor wafer, forming a cap layer over the semiconductor wafer, and performing a source/drain anneal. In addition, the method includes performing a damage implant of the cap layer and removing the cap layer over the semiconductor wafer.Type: ApplicationFiled: June 29, 2007Publication date: January 1, 2009Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Mahalingam Nandakumar, Wayne Bather, Narendra Singh Mehta
-
Publication number: 20070196991Abstract: The present invention provides a method for manufacturing a semiconductor device as well as a semiconductor device. The method, among other steps, may include forming a gate structure over a substrate, and forming a strain inducing sidewall spacer proximate a sidewall of the gate structure, the strain inducing sidewall configured to introduce strain in a channel region below the gate structure.Type: ApplicationFiled: December 14, 2006Publication date: August 23, 2007Applicant: Texas Instruments IncorporatedInventors: Mahalingam Nandakumar, Wayne Bather, Narendra Mehta, Lahir Adam
-
Publication number: 20070015347Abstract: A method forms a semiconductor device comprising a modifiable strain inducing layer. A semiconductor body is provided. First and second regions of the semiconductor body are identified. A modifiable tensile strain inducing layer is formed over the device within the first and second regions. A mask is then formed that exposes the second region and covers the first region. A material is selected for a modification implant and the selected material is implanted into the second region thereby converting a portion of the modifiable tensile strain inducing layer into a compressive strain inducing layer within the PMOS region.Type: ApplicationFiled: July 18, 2005Publication date: January 18, 2007Inventors: Narendra Mehta, Wayne Bather, Ajith Varghese
-
Publication number: 20060172556Abstract: The present invention provides a method for manufacturing a semiconductor device as well as a semiconductor device. The method, among other steps, may include forming a gate structure (230) over a substrate (210), and forming a strain inducing film (330, 520, 530 or 810) over the substrate (210) and proximate the gate structure (230), the strain inducing film (330, 520, 530 or 810) comprising a bis t-butylaminosilane (BTBAS) silicon nitride layer formed using ratio of bis t-butylaminosilane (BTBAS) to ammonia (NH3) of 1:1 or greater.Type: ApplicationFiled: February 1, 2006Publication date: August 3, 2006Applicant: Texas Instruments IncorporatedInventors: Wayne Bather, Narendra Mehta, Troy Yocum
-
Publication number: 20050189660Abstract: A method of forming a semiconductor device includes forming one or more sidewall spacer layers on the outer surface of a gate stack. At least one region of an at least partially formed semiconductor device is doped. First and second sidewall bodies are formed on opposing sides of the gate stack. The formation of the first and second sidewall bodies includes forming a first sidewall-forming layer on the outward surface of the gate stack and the sidewall spacer layers, exposing the semiconductor device to a heating cycle in a single wafer reactor, and forming a second sidewall-forming layer on the outward surface of the first sidewall-forming layer. The formation of the second sidewall-forming layer occurs in an environment that substantially minimizes dopant loss and deactivation in the at least one region of the partially formed semiconductor device.Type: ApplicationFiled: June 2, 2004Publication date: September 1, 2005Inventors: Haowen Bu, Amitabh Jain, Wayne Bather, Stephanie Butler
-
Patent number: 6812073Abstract: A method of forming a semiconductor device includes forming one or more sidewall spacer layers on the outer surface of a gate stack. At least one region of an at least partially formed semiconductor device is doped. First and second sidewall bodies are formed on opposing sides of the gate stack. The formation of the first and second sidewall bodies includes forming a first sidewall-forming layer on the outward surface of the gate stack and the sidewall spacer layers, exposing the semiconductor device to a heating cycle in a single wafer reactor, and forming a second sidewall-forming layer on the outward surface of the first sidewall-forming layer. The formation of the second sidewall-forming layer occurs in an environment that substantially minimizes dopant loss and deactivation in the at least one region of the partially formed semiconductor device.Type: GrantFiled: December 10, 2002Date of Patent: November 2, 2004Assignee: Texas Instrument IncorporatedInventors: Haowen Bu, Amitabh Jain, Wayne A. Bather, Stephanie Watts Butler
-
Publication number: 20040110352Abstract: A method of forming a semiconductor device includes forming one or more sidewall spacer layers on the outer surface of a gate stack. At least one region of an at least partially formed semiconductor device is doped. First and second sidewall bodies are formed on opposing sides of the gate stack. The formation of the first and second sidewall bodies includes forming a first sidewall-forming layer on the outward surface of the gate stack and the sidewall spacer layers, exposing the semiconductor device to a heating cycle in a single wafer reactor, and forming a second sidewall-forming layer on the outward surface of the first sidewall-forming layer. The formation of the second sidewall-forming layer occurs in an environment that substantially minimizes dopant loss and deactivation in the at least one region of the partially formed semiconductor device.Type: ApplicationFiled: December 10, 2002Publication date: June 10, 2004Applicant: Texas Instruments IncorporatedInventors: Haowen Bu, Amitabh Jain, Wayne A. Bather, Stephanie Watts Butler
-
Patent number: 6686283Abstract: A method for forming planar isolation structures for integrated circuits. A etch barrier is formed over the isolation fill material and an etch back is performed to remove material above unetched portions of the substrate. The exposed fill material is etched and planarized to form a planar isolation structure.Type: GrantFiled: February 4, 2000Date of Patent: February 3, 2004Assignee: Texas Instruments IncorporatedInventors: Shawn T. Walsh, John E. Campbell, Somit Joshi, James B. Friedmann, Michael J. McGranaghan, Janice D. Makos, Arun Sivasothy, Troy A. Yocum, Jaideep Mavoori, Wayne A. Bather, Joe G. Tran, Ju-Ai Ruan, Michelle L. Hartsell, Gregory B. Shinn
-
Publication number: 20030129804Abstract: A method of forming a semiconductor device includes doping at least one region of an at least partially formed semiconductor device. The method further includes depositing at least one spacer layer outwardly from the at least one region of the at least partially formed semiconductor device. The at least one deposited spacer layer is formed in an environment that substantially minimizes dopant loss and deactivation in the at least one region of the at least partially formed semiconductor device.Type: ApplicationFiled: May 14, 2002Publication date: July 10, 2003Inventors: Manoj Mehrotra, Wayne A. Bather, Reji K. Koshy, Amitabh Jain, Mark S. Rodder, Rajesh B. Khamankar, Paul A. Tiner, Rick L. Wise, Darin K. Wedel