Patents by Inventor Yun Fu

Yun Fu 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: 7119404
    Abstract: Strained channel transistors including a PMOS and NMOS device pair to improve an NMOS device performance without substantially degrading PMOS device performance and method for forming the same, the method including providing a semiconductor substrate; forming strained shallow trench isolation regions in the semiconductor substrate; forming PMOS and NMOS devices on the semiconductor substrate including doped source and drain regions; forming a tensile strained contact etching stop layer (CESL) over the PMOS and NMOS devices; and, forming a tensile strained dielectric insulating layer over the CESL layer.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: October 10, 2006
    Assignee: Taiwan Semiconductor Manufacturing Co. Ltd.
    Inventors: Cheng-Hung Chang, Weng Chang, Chu-Yun Fu
  • Patent number: 7118987
    Abstract: A shallow trench isolation (STI) structure and method of forming the same with reduced stress to improve charge mobility the method including providing a semiconductor substrate comprising at least one patterned hardmask layer overlying the semiconductor substrate; dry etching a trench in the semiconductor substrate according to the at least one patterned hardmask layer; forming one or more liner layers to line the trench selected from the group consisting of silicon dioxide, silicon nitride, and silicon oxynitride; forming one or more layers of trench filling material comprising silicon dioxide to backfill the trench; carrying out at least one thermal annealing step to relax accumulated stress in the trench filling material; carrying out at least one of a CMP and dry etch process to remove excess trench filling material above the trench level; and, removing the at least one patterned hardmask layer.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: October 10, 2006
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chu-Yun Fu, Chih-Cheng Lu, Syun-Ming Jang
  • Publication number: 20060211250
    Abstract: A method for forming a semiconductor device utilizing a chemical-mechanical polishing (CMP) process is provided. In one example, the method includes sequentially performing a first CMP process for removing a first portion of an oxide surface of a semiconductor device using a high selectivity slurry (HSS) and a first polish pad, interrupting the first CMP process, cleaning the semiconductor device and the first polish pad, and performing a second CMP process for removing a second portion of the oxide surface.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 21, 2006
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chuang-Ping Hou, Syun-Ming Jang, Ying-Ho Chen, Chu-Yun Fu, Tung-Ching Tseng
  • Patent number: 7098116
    Abstract: A method of reducing oxide thickness variations in a STI pattern that includes both a dense trench array and a wide trench is described. A first HDP CVD step with a deposition/sputter (D/S) ratio of 9.5 is used to deposit a dielectric layer with a thickness that is 120 to 130% of the shallow trench depth. An etch back is performed in the same CVD chamber with NF3, SiF4 or NF3 and SiF4 to remove about 40 to 50% of the initial dielectric layer. A second HDP CVD step with a D/S ratio of 16 deposits an additional thickness of dielectric layer to a level that is slightly higher than after the first deposition. The etch back and second deposition form a smoother dielectric layer surface which enables a subsequent planarization step to provide filled STI features with a minimal amount of dishing in wide trenches.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: August 29, 2006
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Cheng Lu, Chuan-Ping Hou, Chu-Yun Fu, Chang Wen, Jang Syun Ming
  • Publication number: 20060157776
    Abstract: System and method for improving the process performance of a contact module. A preferred embodiment comprises improving the process performance of a contact module by reducing surface variations of an interlayer dielectric. The interlayer dielectric comprises a plurality of layers, a first layer (for example, a contact etch stop layer 610) protects devices on a substrate from subsequent etching operations, while a second layer (for example, a first dielectric layer 620) covers the first layer. A third layer (for example, a second dielectric layer 630) fills gaps that may be due to the topography of the devices. A fourth layer (for example, a third dielectric layer 640), brings the interlayer dielectric layer to a desired thickness and is formed using a process that yields a very flat surface completes the interlayer dielectric. Using multiple layers permit the elimination of variations (filling gaps and leveling bumps) without resorting to chemical-mechanical polishing.
    Type: Application
    Filed: January 20, 2005
    Publication date: July 20, 2006
    Inventors: Cheng-Hung Chang, Hsiao-Tzu Lu, Chu-Yun Fu, Weng Chang, Shwang-Ming Jeng
  • Publication number: 20060049036
    Abstract: A method comprises measuring an RF voltage and ion current at a wafer during a plasma-enhanced deposition process, determining a sputter rate in response to the RF voltage and ion current measurements, detecting an abnormal condition in response to one of the RF voltage and ion current measurements, and sputter rate, and taking a corrective action in response to detecting an abnormal condition.
    Type: Application
    Filed: September 9, 2004
    Publication date: March 9, 2006
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Hung Chang, Jhi-Cherng Lu, Joung-Wei Liou, Chu-Yun Fu, Weng Chang, Syung-Ming Jang
  • Publication number: 20060024879
    Abstract: A MOSFET device pair with improved drive current and a method for producing the same to selectively introduce strain into a respective N-type and P-type MOSFET device channel region, the method including forming a compressive stressed nitride layer on over the P-type MOSFET device and a tensile stressed nitride layer on the N-type MOSFET device followed by forming a PMD layer having a less compressive or tensile stress.
    Type: Application
    Filed: July 31, 2004
    Publication date: February 2, 2006
    Inventors: Chu-Yun Fu, Cheng-Hung Chang
  • Publication number: 20050260806
    Abstract: Strained channel transistors including a PMOS and NMOS device pair to improve an NMOS device performance without substantially degrading PMOS device performance and method for forming the same, the method including providing a semiconductor substrate; forming strained shallow trench isolation regions in the semiconductor substrate; forming PMOS and NMOS devices on the semiconductor substrate including doped source and drain regions; forming a tensile strained contact etching stop layer (CESL) over the PMOS and NMOS devices; and, forming a tensile strained dielectric insulating layer over the CESL layer.
    Type: Application
    Filed: May 19, 2004
    Publication date: November 24, 2005
    Inventors: Cheng-Hung Chang, Weng Chang, Chu-Yun Fu
  • Publication number: 20050170606
    Abstract: A shallow trench isolation (STI) structure and method of forming the same with reduced stress to improve charge mobility the method including providing a semiconductor substrate comprising at least one patterned hardmask layer overlying the semiconductor substrate; dry etching a trench in the semiconductor substrate according to the at least one patterned hardmask layer; forming one or more liner layers to line the trench selected from the group consisting of silicon dioxide, silicon nitride, and silicon oxynitride; forming one or more layers of trench filling material comprising silicon dioxide to backfill the trench; carrying out at least one thermal annealing step to relax accumulated stress in the trench filling material; carrying out at least one of a CMP and dry etch process to remove excess trench filling material above the trench level; and, removing the at least one patterned hardmask layer.
    Type: Application
    Filed: January 29, 2004
    Publication date: August 4, 2005
    Inventors: Chu-Yun Fu, Jhi-Cherng Lu, Syun-Ming Jang
  • Publication number: 20050153519
    Abstract: A method of reducing oxide thickness variations in a STI pattern that includes both a dense trench array and a wide trench is described. A first HDP CVD step with a deposition/sputter (D/S) ratio of 9.5 is used to deposit a dielectric layer with a thickness that is 120 to 130% of the shallow trench depth. An etch back is performed in the same CVD chamber with NF3, SiF4 or NF3 and SiF4 to remove about 40 to 50% of the initial dielectric layer. A second HDP CVD step with a D/S ratio of 16 deposits an additional thickness of dielectric layer to a level that is slightly higher than after the first deposition. The etch back and second deposition form a smoother dielectric layer surface which enables a subsequent planarization step to provide filled STI features with a minimal amount of dishing in wide trenches.
    Type: Application
    Filed: January 8, 2004
    Publication date: July 14, 2005
    Inventors: Chih-Cheng Lu, Chuan-Ping Hou, Chu-Yun Fu, Chang Wen, Jang Ming
  • Publication number: 20050095727
    Abstract: A test region layout for testing shallow trench isolation gap fill characteristics is disclosed. Each test region further comprises at least one test pattern disposed in an interior portion of the test region. In a preferred embodiment, the test pattern is a square shape or, more preferably, two diametrically opposed ā€œLā€ shapes which are discontinuous with respect to each other. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 5, 2005
    Inventors: Weng Chang, Chih-Cheng Lu, Chu-Yun Fu, Syun-Ming Jang
  • Patent number: 6884736
    Abstract: A method of manufacturing a semiconductor device is provided. A semiconductor element is formed on a substrate. The semiconductor element has at least one nickel silicide contact region, an etch stop layer formed over said element, and an insulating layer formed over said etch stop layer. A portion of the etch stop layer immediately over a selected contact region is removed using a process that does not substantially react with the contact region, to form a contact opening. The contact opening is then filled with a conductive material to form a contact.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: April 26, 2005
    Assignee: Taiwan Semiconductor Manufacturing Co, Ltd.
    Inventors: Chii-Ming Wu, Mei-Yun Wang, Chih-Wei Chang, Chin-Hwa Hsieh, Shau-Lin Shue, Chu-Yun Fu, Ju-Wang Hsu, Ming-Huan Tsai, Yuan-Hung Chiu
  • Publication number: 20050076111
    Abstract: A system and method are provided for relating aborted client accesses of server information to the quality of service provided to clients by a server in a client-server network. According to one embodiment, a method comprises determining performance data for at least one aborted client access of information from a server in a client-server network, and using the performance data to determine whether the aborted client access(es) relate to the quality of service provided to a client by the server.
    Type: Application
    Filed: May 16, 2002
    Publication date: April 7, 2005
    Inventors: Ludmila Cherkasova, Yun Fu, Wenting Tang
  • Publication number: 20040110392
    Abstract: A method is provided for improving Idsat in NMOS and PMOS transistors. A silicon nitride etch stop layer is deposited by a PECVD technique on STI and silicide regions and on sidewall spacers during a MOSFET manufacturing scheme. A dielectric layer is formed on the nitride and then contact holes are fabricated through the dielectric layer and nitride layer to silicide regions and are filled with a metal. For NMOS transistors, silane and NH3 flow rates and a 400° C. temperature are critical in improving NMOS short channel Idsat. Hydrogen content in the nitride is increased by higher NH3 and SiH4 flow rates but does not significantly degrade HCE and Vt. With PMOS transistors, deposition temperature is increased to 550° C. to reduce hydrogen content and improve HCE and Vt stability.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Applicant: Taiwan Semiconductor Manufacturing Company
    Inventors: Chu-Yun Fu, Chi-Hsun Hsieh, Yi-Ming Sheu, Syun-Ming Jang
  • Publication number: 20040067635
    Abstract: A method of manufacturing a semiconductor device is provided. A semiconductor element is formed on a substrate. The semiconductor element has at least one nickel silicide contact region, an etch stop layer formed over said element, and an insulating layer formed over said etch stop layer. A portion of the etch stop layer immediately over a selected contact region is removed using a process that does not substantially react with the contact region, to form a contact opening. The contact opening is then filled with a conductive material to form a contact.
    Type: Application
    Filed: October 7, 2002
    Publication date: April 8, 2004
    Inventors: Chii-Ming Wu, Mei-Yun Wang, Chih-Wei Chang, Chin-Hwa Hsieh, Shau-Lin Shue, Chu-Yun Fu, Ju-Wang Hsu, Ming-Huan Tsai, Yuan-Hung Chiu
  • Patent number: 6713406
    Abstract: Improved processes for depositing dielectric layers by HDP (High Density Plasma) CVD (Chemical Vapor Deposition) are described. One method controls the RF power applied to the side source RF power to be less than about 2500 Watts during dielectric deposition. A second method controls the thickness of the HDP-CVD deposited dielectric layer to be less than between about 2000 and 3000 Angstroms. These methods of HDP-CVD deposition of dielectric layers result in elimination or suppression of plasma induced damage to MOSFET devices and improved gate oxide integrity of MOSFET devices following deposition of dielectric layers by HDP-CVD.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: March 30, 2004
    Assignee: Taiwan Semiconductor Manufacturing Company
    Inventors: Chu-Yun Fu, Kuo-Chyuan Tzeng
  • Publication number: 20030221000
    Abstract: According to one embodiment of the present invention, a method is provided for measuring performance of service provided to a client by a server in a client-server network. The method comprises capturing network-level information for a client access of data from a server in a client-server network, wherein the client-server network comprises a server side and a client side and wherein the network-level information is captured on the server side. The method further comprises determining from the captured network-level information at least one performance measurement relating to the client access of data.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 27, 2003
    Inventors: Ludmila Cherkasova, Yun Fu, Wenting Tang
  • Publication number: 20030217162
    Abstract: According to one embodiment of the present invention, a method for reconstructing client web page accesses is provided that comprises capturing network-level information for client accesses of at least one web page, and using the captured network-level information to reconstruct client accesses of the at least one web page. Another embodiment of the present invention provides a method for reconstructing client information accesses. The method comprises capturing network-level information for client accesses of information from a server, wherein each client access of the information comprises a plurality of transactions. The method further comprises relating the plurality of transactions to their corresponding client access of information from the server.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 20, 2003
    Inventors: Yun Fu, Ludmila Cherkasova, Wenting Tang
  • Publication number: 20030217130
    Abstract: According to one embodiment of the present invention, a method for compiling desired information for network transactions is provided. The method comprises capturing network-level information in a kernel-level module of a processor-based device arranged on the server-side of a client-server communication network, and using the captured network-level information to compile, in the kernel-level module, desired information for at least one network transaction conducted between a client and a server via the client-server communication network. Another embodiment of the present invention provides a method for compiling desired information for network transactions that comprises implementing a kernel-level module in a STREAMS-based network stack of a server, wherein the kernel-level module is operable to monitor a network connection to the server to compile desired information for network transactions conducted through the network connection.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 20, 2003
    Inventors: Wenting Tang, Ludmila Cherkasova, Yun Fu
  • Patent number: D526691
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: August 15, 2006
    Inventor: Yun Fu