Patents by Inventor Wei Hua Tong
Wei Hua Tong 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: 9698269Abstract: Fin-type transistor fabrication methods and structures are provided having one or more nitrided conformal layers, to improve reliability of the semiconductor device. The method includes, for example, providing at least one material layer disposed, in part, conformally over a fin extending above a substrate, the material layer(s) including a gate dielectric layer; and performing a conformal nitridation process over an exposed surface of the material layer(s), the conformal nitridation process forming an exposed, conformal nitrided surface.Type: GrantFiled: March 3, 2016Date of Patent: July 4, 2017Assignee: GLOBALFOUNDRIES Inc.Inventors: Wei Hua Tong, Tien-Ying Luo, Yan Ping Shen, Feng Zhou, Jun Lian, Haoran Shi, Min-hwa Chi, Jin Ping Liu, Haiting Wang, Seung Kim
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Patent number: 9607989Abstract: Methods for forming a trench silicide without gouging the silicon source/drain regions and the resulting devices are disclosed. Embodiments include forming first and second dummy gates, each with spacers at opposite sides thereof, on a substrate; forming eSiGe source/drain regions at opposite sides of the first dummy gate; forming raised source/drain regions at opposite sides of the second dummy gate; forming a silicon cap on each of the eSiGe and raised source/drain regions; forming an ILD over and between the first and second dummy gates; replacing the first and second dummy gates with first and second HKMG, respectively; forming a contact trench through the ILD into the silicon cap over each of the eSiGe and raised source/drain regions; and forming a silicide over the eSiGe and raised source/drain regions.Type: GrantFiled: December 4, 2014Date of Patent: March 28, 2017Assignee: GLOBALFOUNDRIES INC.Inventors: Xusheng Wu, Yue Hu, Xin Wang, Yong Meng Lee, Wen-Pin Peng, Lun Zhao, Wei-Hua Tong
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Publication number: 20160254145Abstract: Methods of forming condensed first layer and semiconductor structures formed from the methods are provided. The methods include, for instance providing at least one layer disposed over a substrate structure of a semiconductor structure, wherein the substrate structure includes an upper silicon region; and performing at least one oxidation process of the semiconductor structure, the at least one oxidation process reducing a thickness of the upper region, wherein the performing facilitates diffusing to form a condensed layer over the substrate structure.Type: ApplicationFiled: February 27, 2015Publication date: September 1, 2016Applicant: GLOBALFOUNDRIES INC.Inventors: Dina H. TRIYOSO, Wei Hua TONG, Haoran SHI, Jeremy Austin WAHL, Amy Lynn CHILD
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Publication number: 20160190324Abstract: Fin-type transistor fabrication methods and structures are provided having one or more nitrided conformal layers, to improve reliability of the semiconductor device. The method includes, for example, providing at least one material layer disposed, in part, conformally over a fin extending above a substrate, the material layer(s) including a gate dielectric layer; and performing a conformal nitridation process over an exposed surface of the material layer(s), the conformal nitridation process forming an exposed, conformal nitrided surface.Type: ApplicationFiled: March 3, 2016Publication date: June 30, 2016Applicant: GLOBALFOUNDRIES Inc.Inventors: Wei Hua TONG, Tien-Ying LUO, Yan Ping SHEN, Feng ZHOU, Jun LIAN, Haoran SHI, Min-hwa CHI, Jin Ping LIU, Haiting WANG, Seung KIM
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Publication number: 20160163702Abstract: Methods for forming a trench silicide without gouging the silicon source/drain regions and the resulting devices are disclosed.Type: ApplicationFiled: December 4, 2014Publication date: June 9, 2016Inventors: Xusheng WU, Yue HU, Xin WANG, Yong Meng LEE, Wen-Pin PENG, Lun ZHAO, Wei-Hua TONG
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Patent number: 9331159Abstract: Methods of fabricating transistors having raised active region(s) with at least partially angled upper surfaces are provided. The method includes, for instance: providing a gate structure disposed over a substrate, the gate structure including a conformal spacer layer; forming a raised active region adjoining a sidewall of the conformal spacer layer; providing a protective material over the raised active region; selectively etching-back the sidewall of the conformal spacer layer, exposing a side portion of the raised active region below the protective material; and etching the exposed side portion of the raised active region to partially undercut the protective material, wherein the etching facilitates defining, at least in part, an at least partially angled upper surface of the raised active region of the transistor.Type: GrantFiled: February 6, 2015Date of Patent: May 3, 2016Assignee: GLOBALFOUNDRIES Inc.Inventors: Ashish Kumar Jha, Yan Ping Shen, Wei Hua Tong, Haiting Wang, Min-Hwa Chi
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Patent number: 9312145Abstract: Fin-type transistor fabrication methods and structures are provided having one or more nitrided conformal layers, to improve reliability of the semiconductor device. The method includes, for example, providing at least one material layer disposed, in part, conformally over a fin extending above a substrate, the material layer(s) including a gate dielectric layer; and performing a conformal nitridation process over an exposed surface of the material layer(s), the conformal nitridation process forming an exposed, conformal nitrided surface.Type: GrantFiled: March 7, 2014Date of Patent: April 12, 2016Assignee: GLOBALFOUNDRIES INC.Inventors: Wei Hua Tong, Tien-Ying Luo, Yan Ping Shen, Feng Zhou, Jun Lian, Haoran Shi, Min-hwa Chi, Jin Ping Liu, Haiting Wang, Seung Kim
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Patent number: 9202697Abstract: A method includes forming a gate structure by growing an interfacial layer on a substrate, depositing a High K layer on the interfacial layer, depositing a TiN Cap on the High K layer and forming a thin barrier layer on the TiN Cap. The gate structure is annealed.Type: GrantFiled: July 19, 2013Date of Patent: December 1, 2015Assignee: GLOBALFOUNDRIES INC.Inventors: Tien-Ying Luo, Feng Zhou, Yan Ping Shen, Haiting Wang, Haoran Shi, Wei Hua Tong, Seung Kim, Yong Meng Lee
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Publication number: 20150255277Abstract: Fin-type transistor fabrication methods and structures are provided having one or more nitrided conformal layers, to improve reliability of the semiconductor device. The method includes, for example, providing at least one material layer disposed, in part, conformally over a fin extending above a substrate, the material layer(s) including a gate dielectric layer; and performing a conformal nitridation process over an exposed surface of the material layer(s), the conformal nitridation process forming an exposed, conformal nitrided surface.Type: ApplicationFiled: March 7, 2014Publication date: September 10, 2015Applicant: GLOBALFOUNDRIES INC.Inventors: Wei Hua TONG, Tien-Ying LUO, Yan Ping SHEN, Feng ZHOU, Jun LIAN, Haoran SHI, Min-hwa CHI, Jin Ping LIU, Haiting WANG, Seung KIM
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Integrated circuits and methods of forming integrated circuits with interlayer dielectric protection
Patent number: 9123783Abstract: Integrated circuits and methods of forming integrated circuits are provided herein. In an embodiment, a method of forming an integrated circuit includes providing a base substrate having an embedded electrical contact disposed therein. An interlayer dielectric is formed overlying the base substrate, and a recess is etched through the interlayer dielectric over the embedded electrical contact. A protecting liner is formed in the recess and over an exposed surface of the embedded electrical contact in the recess. The protecting liner includes at least two liner layers that have materially different etch rates in different etchants. A portion of the protecting liner is removed over the surface of the embedded electrical contact to again expose the surface of the embedded electrical contact in the recess. An embedded electrical interconnect is formed in the recess. The embedded electrical interconnect overlies the protecting liner on sides of the recess.Type: GrantFiled: November 9, 2012Date of Patent: September 1, 2015Assignee: GLOBALFOUNDRIES, INC.Inventors: Xin Wang, Changyong Xiao, Yue Hu, Yong Meng Lee, Meng Luo, Jialin Weng, Wei Hua Tong, Wen-Pin Peng -
Patent number: 9087870Abstract: Integrated circuits and methods for fabricating integrated circuits are provided. In one example, a method for fabricating an integrated circuit includes etching an enhanced high-aspect-ratio process (eHARP) oxide fill that is disposed in an STI trench between two adjacent fins to form a recessed eHARP oxide fill. The two adjacent fins extend from a bulk semiconductor substrate. A silicon layer is formed overlying the recessed eHARP oxide fill. The silicon layer is converted to a thermal oxide layer to further fill the STI trench with oxide material.Type: GrantFiled: May 29, 2013Date of Patent: July 21, 2015Assignee: GLOBALFOUNDRIES, INC.Inventors: Wei Hua Tong, Huang Liu, HongLiang Shen, Jin Ping Liu, Seung Kim
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Publication number: 20150024585Abstract: A method includes forming a gate structure by growing an interfacial layer on a substrate, depositing a High K layer on the interfacial layer, depositing a TiN Cap on the High K layer and forming a thin barrier layer on the TiN Cap. The gate structure is annealed.Type: ApplicationFiled: July 19, 2013Publication date: January 22, 2015Applicant: GLOBALFOUNDRIES Inc.Inventors: Tien-Ying LUO, Feng ZHOU, Yan Ping SHEN, Haiting WANG, Haoran SHI, Wei Hua TONG, Seung KIM, Yong Meng LEE
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Publication number: 20150017774Abstract: Thermal oxidation treatment methods and processes used during fabrication of semiconductor devices are provided. One method includes, for instance: obtaining a device with at least one cavity etched into the device; performing a thermal oxidation treatment to the at least one cavity; and cleaning the at least one cavity. One process includes, for instance: providing a semiconductor device with a substrate, at least one layer over the substrate and at least one fin; forming at least one gate over the fin; doping at least one region below the fin; applying a spacer layer over the device; etching the spacer layer to expose at least a portion of the gate material; etching a cavity into the at least one fin; etching a shaped opening into the cavity; performing thermal oxidation processing on the at least one cavity; and growing at least one epitaxial layer on an interior surface of the cavity.Type: ApplicationFiled: July 10, 2013Publication date: January 15, 2015Inventors: Wei Hua TONG, Hong YU, Jin Ping LIU, Hyucksoo YANG, Lun ZHAO, Chandra REDDY
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Publication number: 20140353795Abstract: Integrated circuits and methods for fabricating integrated circuits are provided. In one example, a method for fabricating an integrated circuit includes etching an enhanced high-aspect-ratio process (eHARP) oxide fill that is disposed in an STI trench between two adjacent fins to form a recessed eHARP oxide fill. The two adjacent fins extend from a bulk semiconductor substrate. A silicon layer is formed overlying the recessed eHARP oxide fill. The silicon layer is converted to a thermal oxide layer to further fill the STI trench with oxide material.Type: ApplicationFiled: May 29, 2013Publication date: December 4, 2014Inventors: Wei Hua Tong, Huang Liu, HongLiang Shen, Jin Ping Liu, Seung Kim
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INTEGRATED CIRCUITS AND METHODS OF FORMING INTEGRATED CIRCUITS WITH INTERLAYER DIELECTRIC PROTECTION
Publication number: 20140131881Abstract: Integrated circuits and methods of forming integrated circuits are provided herein. In an embodiment, a method of forming an integrated circuit includes providing a base substrate having an embedded electrical contact disposed therein. An interlayer dielectric is formed overlying the base substrate, and a recess is etched through the interlayer dielectric over the embedded electrical contact. A protecting liner is formed in the recess and over an exposed surface of the embedded electrical contact in the recess. The protecting liner includes at least two liner layers that have materially different etch rates in different etchants. A portion of the protecting liner is removed over the surface of the embedded electrical contact to again expose the surface of the embedded electrical contact in the recess. An embedded electrical interconnect is formed in the recess. The embedded electrical interconnect overlies the protecting liner on sides of the recess.Type: ApplicationFiled: November 9, 2012Publication date: May 15, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Xin Wang, Changyong Xiao, Yue Hu, Yong Meng Lee, Meng Luo, Jialin Weng, Wei Hua Tong, Wen-Pin Peng -
Patent number: 8722485Abstract: A method of fabricating an integrated circuit includes the steps of providing a semiconductor substrate having formed thereon a sacrificial silicon oxide layer, an interlayer dielectric layer formed over the sacrificial silicon oxide layer, and a dummy gate structure formed over the sacrificial silicon oxide layer and within the interlayer dielectric layer, removing the dummy gate structure to form an opening within the interlayer dielectric layer, and removing the sacrificial silicon oxide layer within the opening to expose the semiconductor substrate within the opening. The method further includes the steps of thermally forming an oxide layer on the exposed semiconductor substrate within the opening, subjecting the thermally formed oxide layer to a decoupled plasma oxidation treatment, and etching the thermally formed oxide layer using a self-saturated wet etch chemistry. Still further, the method includes depositing a high-k dielectric over the thermally formed oxide layer within the opening.Type: GrantFiled: March 27, 2013Date of Patent: May 13, 2014Assignee: Globalfoundries, Inc.Inventors: Wei Hua Tong, Yiqun Liu, Tae-Hoon Kim, Seung Kim, Haiting Wang, Huang Liu
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Patent number: 7935632Abstract: Formation of metal pipes resulting from formation of metal silicide contacts are reduced or avoided. To reduce formation of metal pipes, an epitaxial layer is formed over the diffusion region on which the metal silicide contact is formed. The epitaxial layer reduces defects which enhances diffusion of metal atoms or molecules.Type: GrantFiled: November 6, 2007Date of Patent: May 3, 2011Assignee: Chartered Semiconductor Manufacturing, Ltd.Inventors: Wei Hua Tong, Lap Chan, K. Suresh Kumar, Miow Chin Tan
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Publication number: 20090114997Abstract: Formation of metal pipes resulting from formation of metal silicide contacts are reduced or avoided. To reduce formation of metal pipes, an epitaxial layer is formed over the diffusion region on which the metal silicide contact is formed. The epitaxial layer reduces defects which enhances diffusion of metal atoms or molecules.Type: ApplicationFiled: November 6, 2007Publication date: May 7, 2009Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD.Inventors: Wei Hua TONG, Lap CHAN, K. Suresh KUMAR, Miow Chin TAN
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Patent number: 6814812Abstract: A double acting cold trap equipped with a set of exhaust gas condensing fins and a set of exhaust gas condensing plates is disclosed. The invention also discloses a double acting cold trap that incorporates a deflecting plate to direct the exhaust gases over the condensing fins and plates in a serial fashion. This increases the efficiency of the collection of unwanted particles.Type: GrantFiled: January 9, 2003Date of Patent: November 9, 2004Assignee: Chartered Semiconductor Manufacturing Ltd.Inventors: Wei Hua Tong, Chen Yu Yang, Zhang Jian, Qian Wu Quan
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Publication number: 20030226366Abstract: A double acting cold trap equipped with a set of exhaust gas condensing fins and a set of exhaust gas condensing plates is disclosed. The invention also discloses a double acting cold trap that incorporates a deflecting plate to direct the exhaust gases over the condensing fins and plates in a serial fashion. This increases the efficiency of the collection of unwanted particles.Type: ApplicationFiled: January 9, 2003Publication date: December 11, 2003Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.Inventors: Wei Hua Tong, Chen Yu Yang, Zhang Jian, Qian Wu Quan