Patents by Inventor Chen-Shih Wang
Chen-Shih Wang 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).
-
Patent number: 11957064Abstract: A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a spacer adjacent to the MTJ, a liner adjacent to the spacer, and a first metal interconnection on the MTJ. Preferably, the first metal interconnection includes protrusions adjacent to two sides of the MTJ and a bottom surface of the protrusions contact the liner directly.Type: GrantFiled: October 18, 2022Date of Patent: April 9, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Hui-Lin Wang, Chen-Yi Weng, Yi-Wei Tseng, Chin-Yang Hsieh, Jing-Yin Jhang, Yi-Hui Lee, Ying-Cheng Liu, Yi-An Shih, I-Ming Tseng, Yu-Ping Wang
-
Publication number: 20240081157Abstract: A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a first spacer on one side of the of the MTJ, a second spacer on another side of the MTJ, a first metal interconnection on the MTJ, and a liner adjacent to the first spacer, the second spacer, and the first metal interconnection. Preferably, each of a top surface of the MTJ and a bottom surface of the first metal interconnection includes a planar surface and two sidewalls of the first metal interconnection are aligned with two sidewalls of the MTJ.Type: ApplicationFiled: November 6, 2023Publication date: March 7, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Hui-Lin Wang, Chen-Yi Weng, Yi-Wei Tseng, Chin-Yang Hsieh, Jing-Yin Jhang, Yi-Hui Lee, Ying-Cheng Liu, Yi-An Shih, I-Ming Tseng, Yu-Ping Wang
-
Publication number: 20240074328Abstract: A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a first spacer on one side of the of the MTJ, a second spacer on another side of the MTJ, a first metal interconnection on the MTJ, and a liner adjacent to the first spacer, the second spacer, and the first metal interconnection. Preferably, each of a top surface of the MTJ and a bottom surface of the first metal interconnection includes a planar surface and two sidewalls of the first metal interconnection are aligned with two sidewalls of the MTJ.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicant: United Microelectronics Corp.Inventors: Hui-Lin Wang, Chen-Yi Weng, Yi-Wei Tseng, Chin-Yang Hsieh, Jing-Yin Jhang, Yi-Hui Lee, Ying-Cheng Liu, Yi-An Shih, I-Ming Tseng, Yu-Ping Wang
-
Publication number: 20190062956Abstract: In one embodiment, a fiber treatment system includes a rotatable nubbed roller including an axis of rotation, a surface, and a number of spaced apart nubs projecting away from the surface, the number of spaced apart nubs imparting a number of spaced apart openings in a fiber tow. In another embodiment, the fiber treatment system further includes an optionally rotatable spreader roller for flattening the fiber tow. In yet another embodiment, the loosened, but still continuous fiber tow is chopped by a downstream chopper to form short fibers with reduced tow sizes.Type: ApplicationFiled: October 26, 2018Publication date: February 28, 2019Inventors: Chen-Shih WANG, Charles William KNAKAL, Jeffrey Scott DAHL, Bhavesh Suresh SHAH
-
Patent number: 10160172Abstract: A method of repairing a polymeric composite workpiece. The method comprises identifying a localized area of the polymeric composite workpiece having a defect. A plurality of three dimensional interface structures are aligned adjacent at least a portion of the localized area. The method includes applying a polymeric composite patch to the localized area such that the interface structures are disposed between the polymeric composite workpiece and the polymeric composite patch. An alternating electromagnetic field may be introduced to selectively induce localized heating of the interface structures. The localized heating softens regions of the polymeric composite workpiece and the polymeric composite patch adjacent the interface structures, causing the interface structures to penetrate a distance into the respective polymeric composite workpiece and the polymeric composite patch.Type: GrantFiled: July 31, 2015Date of Patent: December 25, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Xiaosong Huang, Chen-Shih Wang
-
Patent number: 10138579Abstract: In one embodiment, a fiber treatment system includes a rotatable nubbed roller including an axis of rotation, a surface, and a number of spaced apart nubs projecting away from the surface, the number of spaced apart nubs imparting a number of spaced apart openings in a fiber tow. In another embodiment, the fiber treatment system further includes an optionally rotatable spreader roller for flattening the fiber tow. In yet another embodiment, the loosened, but still continuous fiber tow is chopped by a downstream chopper to form short fibers with reduced tow sizes.Type: GrantFiled: February 19, 2015Date of Patent: November 27, 2018Assignee: United States Council For Automotive Research, LLCInventors: Chen-Shih Wang, Charles William Knakal, Jeffrey Scott Dahl, Bhavesh Suresh Shah
-
Patent number: 9827707Abstract: A process, for joining workpieces using hybrid mechanical connector-resistance welding. The process in some embodiments includes introducing a conductive fluid to an interface between the workpieces. The process also includes inserting at least one mechanical conductive connector into at least one of the workpieces so that the connector reaches the interface having the conductive fluid therein. The process in some embodiments includes further applying energy for welding to the at least one mechanical conductive connector so that the energy passes, through the connector, to the conductive fluid and heat is generated in the workpieces at the interface, thereby melting the workpieces and forming a weld joint connecting the workpieces.Type: GrantFiled: August 7, 2014Date of Patent: November 28, 2017Assignee: GM Global Technology Operations LLCInventors: Pei-Chung Wang, Chen-Shih Wang, Yongqiang Li, Saul Lee, Hamid Kia
-
Patent number: 9808856Abstract: The present disclosure relates a rivet body, including a rivet head and a rivet shank, composed of a different material than a mandrel used for insertion into a workpiece(s), the mandrel including a mandrel shaft and a mandrel cap. The rivet body receives the mandrel shaft, including the mandrel cap, through the rivet shank. The mandrel shaft is received by the installation tool, which rotates the rivet body, and the mandrel cap locally deforms workpieces(s) through friction riveting to install the rivet body. During the friction riveting, the fast-rotating rivet body is pushed into the workpiece(s) causing local deformation/melting where the mandrel cap contacts the workpiece(s). The mandrel cap creates a cavity which progresses through an upper surface and a lower surface of the workpiece(s).Type: GrantFiled: September 25, 2014Date of Patent: November 7, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pei-Chung Wang, Chen-Shih Wang, Ingrid A. Rousseau
-
Patent number: 9561621Abstract: A method and apparatus to mitigate the severity of the bond-line read-out defect, and more specifically microwave heating to locally cure adhesive bond-line in a single or two stage process comprising heating thermoset adhesive with microwave radiation until the adhesive is fully cured or partially cured. If the adhesive is partially cured, it can be fully cured by being subjected to an additional thermal cycle.Type: GrantFiled: July 2, 2012Date of Patent: February 7, 2017Assignee: GM Global Technology Operations LLCInventors: Sampath K. Vanimisetti, Chen-Shih Wang
-
Publication number: 20160177475Abstract: In one embodiment, a fiber treatment system includes a rotatable nubbed roller including an axis 5 of rotation, a surface, and a number of spaced apart nubs projecting away from the surface, the number of spaced apart nubs imparting a number of spaced apart openings in a fiber tow. In another embodiment, the fiber treatment system further includes an optionally 10 rotatable spreader roller for flattening the fiber tow. In yet another embodiment, the loosened, but still continuous fiber tow is chopped by a downstream chopper to form short fibers with reduced tow sizes.Type: ApplicationFiled: February 19, 2015Publication date: June 23, 2016Inventors: Chen-Shih WANG, Charles William KNAKAL, Jeffrey Scott DAHL, Bhavesh Suresh SHAH
-
Publication number: 20160167353Abstract: The present technology discloses methods for joining a first workpiece and a second workpiece through an interlocking weld, and products formed thereby. The first workpiece has a first surface and a second surface opposite the first surface, and the second workpiece has a first surface, a groove formed in the first surface, and a second surface opposite the first surface. The system is formed by applying energy to the system, at least partially melting material of the first workpiece, and causing the material to flow into the groove, and allowing or causing the material to cool, forming an interlocked-weld joint connecting the workpieces.Type: ApplicationFiled: December 12, 2014Publication date: June 16, 2016Inventors: HUA-TZU FAN, CHEN-SHIH WANG, JORGE F. ARINEZ, SUSAN M. SMYTH
-
Patent number: 9328266Abstract: A thermosetting polymer composite composition (such as thermosetting SMC composition) or a thermosetting adhesive composition containing reduced-volume hollow shape-memory alloy particles in the thermosetting polymer composite composition or adhesive composition experiences little or no volume loss during a curing at a temperature above the transformation temperature for the particles.Type: GrantFiled: October 22, 2012Date of Patent: May 3, 2016Assignee: GM Global Technology Operations, LLCInventors: Sampath K. Vanimisetti, Chen-Shih Wang, Vidyashankar R. Buravalla
-
Publication number: 20160091009Abstract: The present disclosure relates a rivet body, including a rivet head and a rivet shank, composed of a different material than a mandrel used for insertion into a workpiece(s), the mandrel including a mandrel shaft and a mandrel cap. The rivet body receives the mandrel shaft, including the mandrel cap, through the rivet shank. The mandrel shaft is received by the installation tool, which rotates the rivet body, and the mandrel cap locally deforms workpieces(s) through friction riveting to install the rivet body. During the friction riveting, the fast-rotating rivet body is pushed into the workpiece(s) causing local deformation/melting where the mandrel cap contacts the workpiece(s). The mandrel cap creates a cavity which progresses through an upper surface and a lower surface of the workpiece(s).Type: ApplicationFiled: September 25, 2014Publication date: March 31, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: PEI-CHUNG WANG, CHEN-SHIH WANG, INGRID A. ROUSSEAU
-
Publication number: 20160039157Abstract: A method of repairing a polymeric composite workpiece. The method comprises identifying a localized area of the polymeric composite workpiece having a defect. A plurality of three dimensional interface structures are aligned adjacent at least a portion of the localized area. The method includes applying a polymeric composite patch to the localized area such that the interface structures are disposed between the polymeric composite workpiece and the polymeric composite patch. An alternating electromagnetic field may be introduced to selectively induce localized heating of the interface structures. The localized heating softens regions of the polymeric composite workpiece and the polymeric composite patch adjacent the interface structures, causing the interface structures to penetrate a distance into the respective polymeric composite workpiece and the polymeric composite patch.Type: ApplicationFiled: July 31, 2015Publication date: February 11, 2016Inventors: Xiaosong HUANG, Chen-Shih WANG
-
Patent number: 9222007Abstract: One embodiment of the invention includes a shape memory polymer which functions similar to a traditional mechanical clamp. A shape memory polymer may exhibit adhesive properties when heated above its glass transition temperature. The shape memory polymers may function as a reversible dry adhesive clamp.Type: GrantFiled: September 13, 2012Date of Patent: December 29, 2015Assignee: GM Global Technology Operations LLCInventors: Tao Xie, Chen-Shih Wang
-
Patent number: 9212437Abstract: A one-piece fiber reinforcement for a reinforced polymer is described. In an embodiment, a one-piece reinforcement is fabricated by first assembling an interior randomly oriented fiber layer between two exterior aligned fiber layers. With all layers in face to face contact, a preselected number of fibers from the aligned layer is conveyed out of its aligned layer and threaded into at least the random fiber layer so that the conveyed fibers engage and mechanically and frictionally interfere with the random fibers. The fibers may be conveyed from one aligned layer to the other for yet greater interference. The interfering fibers serve to secure and interlock the layers together, producing a one-piece reinforcement which, when impregnated with a polymer precursor, shaped and cured may be incorporated in a polymer reinforced composite article.Type: GrantFiled: November 2, 2011Date of Patent: December 15, 2015Assignee: GM Global Technology Operations LLCInventors: Elisabeth J. Berger, John N. Owens, Chen-Shih Wang, Hamid G. Kia
-
Publication number: 20150053328Abstract: A process, for joining workpieces using hybrid mechanical connector-resistance welding. The process in some embodiments includes introducing a conductive fluid to an interface between the workpieces. The process also includes inserting at least one mechanical conductive connector into at least one of the workpieces so that the connector reaches the interface having the conductive fluid therein. The process in some embodiments includes further applying energy for welding to the at least one mechanical conductive connector so that the energy passes, through the connector, to the conductive fluid and heat is generated in the workpieces at the interface, thereby melting the workpieces and forming a weld joint connecting the workpieces.Type: ApplicationFiled: August 7, 2014Publication date: February 26, 2015Inventors: PEI-CHUNG WANG, CHEN-SHIH WANG, YONGQIANG LI, SAUL LEE, HAMID KIA
-
Patent number: 8852733Abstract: The present disclosure relates to a fibrous veil and methods of making the same. The fibrous veil includes a base having a plurality of fibers, each of the plurality of fibers having an average diameter ranging from about 7,000 nm to about 9,000 nm. Graphite nano-platelets are attached to at least some of the plurality of fibers without a polymeric binder.Type: GrantFiled: June 16, 2011Date of Patent: October 7, 2014Assignee: GM Global Technology Operations LLCInventors: Choongyong Kwag, Chen-Shih Wang
-
Patent number: 8840827Abstract: One embodiment of the invention provides a method for compression molding cosmetic panels with visible carbon fiber weaves using clear or lightly filled resins. The method uses a modified, two-step compression molding process to reflow the surface of a partially cured preform of carbon fiber weave and epoxy resin.Type: GrantFiled: November 19, 2010Date of Patent: September 23, 2014Assignee: GM Global Technology Operations LLCInventors: Stanley A. Iobst, Chen-Shih Wang, Choongyong Kwag
-
Patent number: 8827352Abstract: A system for controlling displacement of a vulnerable component in connection with an impact event at the system. The system includes a frame structure, the vulnerable component, and a composite crush member (a) connected to the frame structure and the vulnerable component, forming a first close connection between the composite crush member and the vulnerable component and a second close connection between the composite crush member and the frame structure, (b) comprises primarily a polymer composite and is configured, and (c) is arranged in the system to fail in a predetermined manner in response to the impact event. The system also includes a retention feature configured and connected, directly or indirectly, to the vulnerable component and to the frame structure to, in operation of the system, maintain at least one of the first close connection and the second close connection during and following the composite crush member the impact event.Type: GrantFiled: February 29, 2012Date of Patent: September 9, 2014Assignee: GM Global Technology Operations LLCInventors: Chen-Shih Wang, Hamid G. Kia, John N. Owens, Elisabeth J. Berger, Venkat Aitharaju