Patents by Inventor Bao Feng
Bao Feng 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: 11948935Abstract: Provided is a tap cell including a substrate, a first well, a second well, a first doped region, and the second doped region. The substrate has a first region and a second region. The first well has a first dopant type and includes a first portion disposed in the first region and a second portion extending into the second region. The second well has a second dopant type and includes a third portion disposed in the second region and a fourth portion extending into the first region. The first doped region having the first dopant type is disposed in the second portion of the first well and the third portion of the second well along the second region. The second doped region having the second dopant type is disposed in the first portion of the first well and the fourth portion of the second well along the first region.Type: GrantFiled: November 18, 2022Date of Patent: April 2, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yung-Feng Chang, Bao-Ru Young, Tung-Heng Hsieh, Chun-Chia Hsu
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Publication number: 20240096873Abstract: Electrostatic discharge (ESD) structures are provided. An ESD structure includes a semiconductor substrate, a first epitaxy region with a first type of conductivity over the semiconductor substrate, a second epitaxy region with a second type of conductivity over the semiconductor substrate, and a plurality of semiconductor layers. The semiconductor layers are stacked over the semiconductor substrate and between the first and second epitaxy regions. A first conductive feature is formed over the first epitaxy region and outside an oxide diffusion region. A second conductive feature is formed over the second epitaxy region and outside the oxide diffusion region. A third conductive feature is formed over the first epitaxy region and within the oxide diffusion region. A fourth conductive feature is formed over the second epitaxy region and within the oxide diffusion region. The oxide diffusion region is disposed between the first and second conductive features.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventors: Chun-Chia HSU, Tung-Heng HSIEH, Yung-Feng CHANG, Bao-Ru YOUNG, Jam-Wem LEE, Chih-Hung WANG
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Patent number: 11149857Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.Type: GrantFiled: December 14, 2020Date of Patent: October 19, 2021Assignee: Caterpillar Inc.Inventors: Bao Feng, Connor J. Haas, Joseph J. Every, Daniel P. Vertenten, John M. Spangler
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Patent number: 11118636Abstract: A transmission system includes a clutch control valve assembly having an armature for adjusting a valve, rested upon metallic slide bearings under the force of gravity. The armature includes a core material that is metallic and magnetically soft, an outer thin-film coating that is non-metallic, and a backing substrate material for supporting the outer thin-filmed coating interposed the core material and the outer thin-film coating. The backing substrate material may be case hardened material derived from the core material, such as ferritic nitrocarburized (FNC) iron. The outer thin film coating may be a diamond-like carbon (DLC) material.Type: GrantFiled: October 15, 2019Date of Patent: September 14, 2021Assignee: Caterpillar Inc.Inventors: Bao Feng, Andrew Henry Nippert, Qursheed Hussain Mohammed
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Patent number: 11067028Abstract: A fuel injector system includes an injector body having a proximal end and a distal end, the injector body defining a nozzle having an outlet. The injector system includes a spill valve fluidly connected to the outlet and having a spill valve member movable between an open position and a closed position. The injector system includes a control valve including a control valve member movable between an open position and a closed position. The injector system includes a check valve fluidly connected to the outlet, the control valve including a check valve needle movable between an open position and a closed position. The injector system also includes an electrical monitoring circuit configured to output a signal indicative of at least one of the open position or the closed position of the spill valve member.Type: GrantFiled: January 16, 2019Date of Patent: July 20, 2021Assignee: Caterpillar Inc.Inventors: Hoisan Kim, Robert M. Campion, Steven C. Taylor, Bao Feng
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Publication number: 20210108686Abstract: A transmission system includes a clutch control valve assembly having an armature for adjusting a valve, rested upon metallic slide bearings under the force of gravity. The armature includes a core material that is metallic and magnetically soft, an outer thin-film coating that is non-metallic, and a backing substrate material for supporting the outer thin-filmed coating interposed the core material and the outer thin-film coating. The backing substrate material may be case hardened material derived from the core material, such as ferritic nitrocarburized (FNC) iron. The outer thin film coating may be a diamond-like carbon (DLC) material.Type: ApplicationFiled: October 15, 2019Publication date: April 15, 2021Applicant: Caterpillar Inc.Inventors: Bao Feng, Andrew Henry Nippert, Qursheed Hussain Mohammed
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Publication number: 20210095767Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.Type: ApplicationFiled: December 14, 2020Publication date: April 1, 2021Applicant: Caterpillar Inc.Inventors: Bao Feng, Connor J. Haas, Joseph J. Every, Daniel P. Vertenten, John M. Spangler
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Patent number: 10927959Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.Type: GrantFiled: February 27, 2019Date of Patent: February 23, 2021Assignee: Caterpillar Inc.Inventors: Bao Feng, Connor J. Haas, Joseph J. Every, Daniel P. Vertenten, John M. Spangler
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Publication number: 20200271229Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.Type: ApplicationFiled: February 27, 2019Publication date: August 27, 2020Applicant: Caterpillar Inc.Inventors: Bao Feng, Connor J. Haas, Joseph J. Every
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Publication number: 20200224603Abstract: A fuel injector system includes an injector body having a proximal end and a distal end, the injector body defining a nozzle having an outlet. The injector system includes a spill valve fluidly connected to the outlet and having a spill valve member movable between an open position and a closed position. The injector system includes a control valve including a control valve member movable between an open position and a closed position. The injector system includes a check valve fluidly connected to the outlet, the control valve including a check valve needle movable between an open position and a closed position. The injector system also includes an electrical monitoring circuit configured to output a signal indicative of at least one of the open position or the closed position of the spill valve member.Type: ApplicationFiled: January 16, 2019Publication date: July 16, 2020Applicant: Caterpillar Inc.Inventors: Hoisan KIM, Robert M. CAMPION, Steven C. TAYLOR, Bao FENG
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Publication number: 20170350007Abstract: A method of surface treating a metallic part includes steps of coating the metallic part with a tribological thin film coating, and tumbling the metallic part after the coating step to remove surface micro-particles. The tumbling step may also remove delaminated areas of the tribological thin film coating. According to some embodiments, the metallic part may be tumbled with an alkaline solution.Type: ApplicationFiled: June 2, 2016Publication date: December 7, 2017Inventors: Bao Feng, Steven Charles Taylor
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Publication number: 20170335969Abstract: A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical and extends along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body. The seal flange projects radially in circumscribing manner from the body to an outer perimeter thereof. The seal flange includes a sealing face having a sealing band, disposed adjacent the outer perimeter of the seal flange, and an inner relieved area, disposed between the sealing band and an inner perimeter of the seal flange. The sealing band is polished by an isotropic finishing process after a layer of coating composition is applied to at least the body. The layer of coating composition is formulated to withstand the isotropic finishing process and to help increase the corrosion resistance of the seal ring.Type: ApplicationFiled: May 20, 2016Publication date: November 23, 2017Applicant: Caterpillar Inc.Inventors: John M. Spangler, Bao Feng, Daniel P. Vertenten, Connor J. Haas
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Publication number: 20160280293Abstract: During the break-in period of track assembly components, galling can occur between the components during use. The components include a pin that is received within a bushing and alternatively a sleeve bearing between the pin and the bushing depending on the load. A method to prevent or reduce galling includes applying a coating of zinc phosphate and a low-friction layer on top of the zinc phosphate. The low-friction coating can be made of WS2 (Tungsten Disulphide), BN (Boron Nitride), MoS2 (Molybdenum disulfide) or PTFE (Polytetrafluoroethylene) and deposited during a mechanical treatment.Type: ApplicationFiled: March 24, 2015Publication date: September 29, 2016Applicant: Caterpillar Inc.Inventors: Bao Feng, Mark Diekevers, William Baar, Douglas Weaver, Hyung Yoon
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Publication number: 20160230274Abstract: A multilayer coating for a metallic surface of a component is provided. The multilayer coating includes a first coating having a metal nitride. The first coating at least partially overlaps the metallic surface. The multilayer coating also includes a second coating having a metal. The second coating at least partially overlaps the first coating. The multilayer coating further includes a third coating having a Diamond Like Carbon (DLC) material. The third coating at least partially overlaps the second coating. The first coating, the second coating, and the third coating differ from one another with respect to at least one of hardness, elasticity, corrosion resistance, and lubricity. The multilayer coating includes at least ten overlapping layers having successive layers of the first coating, the second coating, and the third coating in repeating sequence.Type: ApplicationFiled: April 19, 2016Publication date: August 11, 2016Applicant: Caterpillar Inc.Inventors: Colm Martin Flannery, Steven Charles Taylor, Bao Feng, Lucy Victoria Berg, Joseph Ryan Sullivan
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Patent number: 9362681Abstract: An electrical connector includes a first terminal module, a second terminal module, a shielding shell and a metallic shielding plate. The first terminal module includes a first mating tongue and first terminals insert molded thereamong. The first mating tongue has a first mating face on which the first terminals are exposed. The first terminals have first connecting sections extending in a vertical direction. The second terminal module includes a second mating tongue and second terminals insert molded thereamong. The second mating tongue has a second mating face directly facing to the first mating face and a third mating face. The second terminals are disposed in the second and third mating faces and have second connecting sections extending in the vertical direction. The metallic shielding plate is disposed between the first and second connecting sections and has a plurality of hooked shrapnels elastically contacting with the shielding shell.Type: GrantFiled: February 8, 2015Date of Patent: June 7, 2016Assignee: FOXCONN INTERCONNECT TECHNOLOGY LIMITEDInventors: Chun-Ming Yu, Bao-Feng Lu, Xiao-Qin Zheng, Qi-Sheng Zheng
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Publication number: 20150229082Abstract: An electrical connector includes a first terminal module, a second terminal module, a shielding shell and a metallic shielding plate. The first terminal module includes a first mating tongue and first terminals insert molded thereamong. The first mating tongue has a first mating face on which the first terminals are exposed. The first terminals have first connecting sections extending in a vertical direction. The second terminal module includes a second mating tongue and second terminals insert molded thereamong. The second mating tongue has a second mating face directly facing to the first mating face and a third mating face. The second terminals are disposed in the second and third mating faces and have second connecting sections extending in the vertical direction. The metallic shielding plate is disposed between the first and second connecting sections and has a plurality of hooked shrapnels elastically contacting with the shielding shell.Type: ApplicationFiled: February 8, 2015Publication date: August 13, 2015Inventors: CHUN-MING YU, BAO-FENG LU, XIAO-QIN ZHENG, QI-SHENG ZHENG
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Publication number: 20150197918Abstract: A linkage pin joint assembly may include a portion of a first machine member having a first bore, a portion of a second machine member having a second bore, and a linkage pin pivotally interconnecting at least the first and second machine members. The linkage pin may extend between the first and second machine members, and be positioned at least partially within the first bore of the first machine member and the second bore of the second machine member. The linkage pin may extending at least partially through the first and second bores and pivotally support the first and second machine members relative to each other.Type: ApplicationFiled: March 19, 2015Publication date: July 16, 2015Applicant: CATERPILLAR INC.Inventors: Bao FENG, Hyung YOON, Ronald Mark GINN
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Publication number: 20150197295Abstract: An undercarriage track joint assembly includes a first link having a first bore at a first end and a second bore at a second, opposite end, and a second link having a first bore at a first end and a second bore at a second, opposite end. A pin may extend between the first and second links, positioned at least partially within the first bores of the first and second links, or partially within the second bores of the first and second links. A bushing may extend between the first and second links, a central axial bore being defined through the bushing. The pin may extend through the central axial bore through the bushing, the pin being coated with a diamond-like carbon (DLC) coating over at least a portion of an outer diameter surface of the pin, the coating providing a contact layer between the outer diameter surface of the pin and an inner diameter surface of the central axial bore through the bushing.Type: ApplicationFiled: January 10, 2014Publication date: July 16, 2015Applicant: CATERPILLAR INC.Inventors: Bao FENG, Mark Steven DIEKEVERS, Steven Charles TAYLOR, Joseph Ryan SULLIVAN, Douglas Trent WEAVER
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Patent number: 9051910Abstract: A valve assembly in an internal combustion engine fuel system includes a valve member movable within a valve body to contact a valve seat and block fluid communication between first and second passages. The valve seat and valve member each include a multi-layered coating having a harder metal nitride base layer and a softer metal nitride outer layer. The base layer is relatively incompliant to impacts between the valve member and the valve seat, and the outer layer is relatively compliant to the impacts and thereby deformable. Related methodology is disclosed.Type: GrantFiled: January 31, 2013Date of Patent: June 9, 2015Assignee: Caterpillar Inc.Inventors: Bao Feng, Steven C. Taylor, Lucy V. Berg, Colm M. Flannery
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Patent number: 9016429Abstract: A bearing system includes a sleeve bearing supported on a shaft and a gear supported on the sleeve bearing. The shaft has an outer diameter shaft surface, the sleeve bearing has an inner diameter bearing surface and an outer diameter bearing surface, and the gear has a gear bore surface. At least one of the outer diameter shaft surface, the inner diameter bearing surface, the outer diameter bearing surface, and the gear bore surface includes an isotropic surface finish and a hard thin film over the isotropic surface finish. During a break-in period of operation of the bearing system, the hard thin film over the isotropic surface finish breaks in a counter surface of the bearing system to extend a hydrodynamic lubrication period of operation of the bearing system.Type: GrantFiled: April 2, 2013Date of Patent: April 28, 2015Assignee: Caterpillar Inc.Inventors: Bao Feng, M. Brad Beardsley