Patents by Inventor Sheng-Wei Yang
Sheng-Wei Yang 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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Publication number: 20250275249Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.Type: ApplicationFiled: May 15, 2025Publication date: August 28, 2025Applicant: Micron Technology, Inc.Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
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Patent number: 12336288Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.Type: GrantFiled: September 19, 2022Date of Patent: June 17, 2025Assignee: Micron Technology, Inc.Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
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Publication number: 20230014320Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.Type: ApplicationFiled: September 19, 2022Publication date: January 19, 2023Applicant: Micron Technology, Inc.Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
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Patent number: 11488981Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.Type: GrantFiled: July 21, 2020Date of Patent: November 1, 2022Assignee: Micron Technology, Inc.Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
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Publication number: 20220028903Abstract: An array of vertical transistors comprises spaced pillars of individual vertical transistors that individually comprise an upper source/drain region, a lower source/drain region, and a channel region vertically there-between. The upper source/drain region comprises a conductor oxide material in individual of the pillars. The channel region comprises an oxide semiconductor material in the individual pillars. The lower source/drain region comprises a first conductive oxide material in the individual pillars atop and directly against a second conductive oxide material in the individual pillars. Horizontally-elongated and spaced conductor lines individually interconnect a respective multiple of the vertical transistors in a column direction. The conductor lines individually comprise the second conductive oxide material atop and directly against metal material. The first conductive oxide material, the second conductive oxide material, and the metal material comprise different compositions relative one another.Type: ApplicationFiled: July 21, 2020Publication date: January 27, 2022Applicant: Micron Technology, Inc.Inventors: Yi Fang Lee, Jaydip Guha, Lars P. Heineck, Kamal M. Karda, Si-Woo Lee, Terrence B. McDaniel, Scott E. Sills, Kevin J. Torek, Sheng-Wei Yang
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Patent number: 10891410Abstract: In an example embodiment, a computer-implemented method is provided for receiving an integrated circuit design, wherein the integrated circuit design comprises at least one position in violation of one or more design rules associated with the integrated design, identifying one or more design patterns at the at least one violating position, generating one or more pattern graphs for the one or more design patterns, extracting a system on chip design for transformation into a block graph, and. comparing the block graph with each of the one or more pattern graphs to determine whether the at least one violating position is cleared. In circumstances where a match is found between the block graph and the each of the one or more pattern graphs, the computer-implemented method further comprises changing the one or more design patterns and repeating the step of comparing until there is no further match found.Type: GrantFiled: July 3, 2019Date of Patent: January 12, 2021Assignee: Synopsys, Inc.Inventors: Chin-Hsiung Hsu, Philip Hui-Yuh Tai, Sheng-Wei Yang, Guo-Ting Wang
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Patent number: 10854514Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the two contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive line and the two contacts.Type: GrantFiled: April 23, 2019Date of Patent: December 1, 2020Assignee: Micron Technology, Inc.Inventors: Tieh-Chiang Wu, Wen-Chieh Wang, Sheng-Wei Yang
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Patent number: 10388564Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the two contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive line and the two contacts.Type: GrantFiled: January 12, 2016Date of Patent: August 20, 2019Assignee: Micron Technology, Inc.Inventors: Tieh-Chiang Wu, Wen-Chieh Wang, Sheng-Wei Yang
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Publication number: 20190252251Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the two contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive line and the two contacts.Type: ApplicationFiled: April 23, 2019Publication date: August 15, 2019Inventors: Tieh-Chiang Wu, Wen-Chieh Wang, Sheng-Wei Yang
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Publication number: 20170200722Abstract: A memory device with a dielectric layer or an air gap between contacts and a method of making the same are disclosed. The method comprises a series of steps including: forming a plurality of conductive lines having trenches therebetween; forming a contact layer in the trench; and forming a dielectric layer interposed in the contact layer and configured to divide the contact layer into two contacts. The method also comprises removing the dielectric layer to form a space and forming a cap layer over the contacts to form an air gap therein. The method further comprises forming a second air gap between the conductive fine and the contact.Type: ApplicationFiled: January 12, 2016Publication date: July 13, 2017Inventors: Tieh-Chiang WU, Wen-Chieh WANG, Sheng-Wei YANG
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Patent number: 9419001Abstract: A method for forming a cell contact. A substrate having first and second protruding structures is prepared. An etch stop layer is deposited over the substrate. A sacrificial layer is deposited on the etch stop layer. The sacrificial layer is recessed. Spacers are formed on the top surface of the sacrificial layer. A portion of the sacrificial layer not covered by the spacers is etched away, thereby forming a recess. A gap filling material layer is deposited into the recess. An upper portion of the gap filling material layer and the spacers are removed to expose the top surface of the sacrificial layer. The sacrificial layer is removed to form contact holes. A punch etching process is performed to remove the etch stop layer from bottoms of the contact holes. The contact holes is filled up with a conductive material layer.Type: GrantFiled: January 15, 2016Date of Patent: August 16, 2016Assignee: INOTERA MEMORIES, INC.Inventors: Sheng-Wei Yang, Tieh-Chiang Wu, Wen-Chieh Wang
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Publication number: 20150340320Abstract: A method of creating a trench having a portion of a bulb-shaped cross-section in silicon is disclosed. The method comprises forming at least one trench in silicon and forming a liner in the at least one trench. The liner is removed from a bottom surface of the at least one trench to expose the underlying silicon. A portion of the underlying exposed silicon is removed to form a cavity in the silicon. At least one removal cycle is conducted to remove exposed silicon in the cavity to form a bulb-shaped cross-sectional profile, with each removal cycle comprising subjecting the silicon in the cavity to ozonated water to oxidize the silicon and subjecting the oxidized silicon to a hydrogen fluoride solution to remove the oxidized silicon. A semiconductor device structure comprising the at least one trench comprising a cavity with a bulb-shaped cross-sectional profile is also disclosed.Type: ApplicationFiled: August 4, 2015Publication date: November 26, 2015Inventors: Sanjeev Sapra, Cheng-Shun Chen, Hung-Ming Tsai, Sheng-Wei Yang
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Patent number: 9117759Abstract: A method of creating a trench having a portion of a bulb-shaped cross-section in silicon is disclosed. The method comprises forming at least one trench in silicon and forming a liner in the at least one trench. The liner is removed from a bottom surface of the at least one trench to expose the underlying silicon. A portion of the underlying exposed silicon is removed to form a cavity in the silicon. At least one removal cycle is conducted to remove exposed silicon in the cavity to form a bulb-shaped cross-sectional profile, with each removal cycle comprising subjecting the silicon in the cavity to ozonated water to oxidize the silicon and subjecting the oxidized silicon to a hydrogen fluoride solution to remove the oxidized silicon. A semiconductor device structure comprising the at least one trench comprising a cavity with a bulb-shaped cross-sectional profile is also disclosed.Type: GrantFiled: August 10, 2011Date of Patent: August 25, 2015Assignee: MICRON TECHNOLOGY, INC.Inventors: Sanjeev Sapra, Cheng-Shun Chen, Hung-Ming Tsai, Sheng-Wei Yang
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Patent number: 9041099Abstract: The present invention provides a single-sided access device including an active fin structure comprising a source region and a drain region; an insulating layer interposed between the source region and the drain region; a trench isolation structure disposed at one side of the active fin structure; a single-sided sidewall gate electrode disposed on the other side of the active fin structure opposite to the trench isolation structure so that the active fin structure is sandwiched by trench isolation structure and the single-sided sidewall gate electrode; and a gate protrusion laterally and electrically extended from the single-sided sidewall gate electrode and embedded between the source region and the drain region under the insulating layer.Type: GrantFiled: April 11, 2011Date of Patent: May 26, 2015Assignee: NANYA TECHNOLOGY CORP.Inventors: Shyam Surthi, Sheng-Wei Yang
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Patent number: 9012303Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.Type: GrantFiled: October 21, 2014Date of Patent: April 21, 2015Assignee: Nanya Technology CorporationInventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
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Publication number: 20150037961Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.Type: ApplicationFiled: October 21, 2014Publication date: February 5, 2015Inventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
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Patent number: 8901631Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.Type: GrantFiled: March 11, 2013Date of Patent: December 2, 2014Assignee: Nanya Technology CorporationInventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
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Publication number: 20140252532Abstract: Provided is a method for fabricating a semiconductor device, including the following steps. A substrate having a plurality of pillars is provided, wherein a plurality of trenches are formed around each pillar. A doped region is formed in the substrate and below each pillar. The doped region below each trench is removed to form an opening such that the doped regions below the adjacent pillars are separated from each other. A shielding layer is formed in each opening.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Applicant: NANYA TECHNOLOGY CORPORATIONInventors: Sheng-Wei Yang, Ying-Cheng Chuang, Shyam Surthi
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Publication number: 20130037919Abstract: A method of creating a trench having a portion of a bulb-shaped cross-section in silicon is disclosed. The method comprises forming at least one trench in silicon and forming a liner in the at least one trench. The liner is removed from a bottom surface of the at least one trench to expose the underlying silicon. A portion of the underlying exposed silicon is removed to form a cavity in the silicon. At least one removal cycle is conducted to remove exposed silicon in the cavity to form a bulb-shaped cross-sectional profile, with each removal cycle comprising subjecting the silicon in the cavity to ozonated water to oxidize the silicon and subjecting the oxidized silicon to a hydrogen fluoride solution to remove the oxidized silicon. A semiconductor device structure comprising the at least one trench comprising a cavity with a bulb-shaped cross-sectional profile is also disclosed.Type: ApplicationFiled: August 10, 2011Publication date: February 14, 2013Applicant: MICRON TECHNOLOGY, INC.Inventors: Sanjeev Sapra, Cheng-Shun Chen, Hung-Ming Tsai, Sheng-Wei Yang
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Patent number: 8334196Abstract: A method of forming a conductive contact includes forming a structure comprising an upper surface joining with a sidewall surface. The sidewall surface contains elemental-form silicon. Silicon is epitaxially grown from the sidewall surface. Dielectric material is formed over the upper surface and the epitaxially-grown silicon. A conductive contact is formed through the dielectric material to conductively connect with the upper surface.Type: GrantFiled: November 1, 2010Date of Patent: December 18, 2012Assignee: Micron Technology, Inc.Inventors: Ying-Cheng Chuang, Hung-Ming Tsai, Sheng-Wei Yang, Ping-Cheng Hsu, Ming-Cheng Chang