Patents by Inventor Wen-Chang Shih

Wen-Chang Shih 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).

  • Publication number: 20240304657
    Abstract: A semiconductor device includes a substrate, a first gate, a plurality of second gates and a resistor. The substrate is defined with an active region and a resistor region. The first gate is disposed in the active region. The first gate has a first length extending along a first direction and a second length extending along a second direction. The plurality of second gates are disposed in the resistor region. Each of the second gates has a third length extending along the first direction and a fourth length extending along the second direction. The first length is equal to the third length, and the second length is equal to the fourth length. The resistor is disposed on the plurality of second gates.
    Type: Application
    Filed: March 29, 2023
    Publication date: September 12, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Yi-Chun Teng, Ming-Che Tsai, Ping-Chia Shih, Yi-Chang Huang, Wen-Lin Wang, Yu-Fan Hu, Ssu-Yin Liu, Yu-Nong Chen, Pei-Tsen Shiu, Cheng-Tzung Tsai
  • Publication number: 20240297166
    Abstract: An integrated circuit package and a method of forming the same are provided. The method includes attaching an integrated circuit die to a first substrate. A dummy die is formed. The dummy die is attached to the first substrate adjacent the integrated circuit die. An encapsulant is formed over the first substrate and surrounding the dummy die and the integrated circuit die. The encapsulant, the dummy die and the integrated circuit die are planarized, a topmost surface of the encapsulant being substantially level with a topmost surface of the dummy die and a topmost surface of the integrated circuit die. An interior portion of the dummy die is removed. A remaining portion of the dummy die forms an annular structure.
    Type: Application
    Filed: May 15, 2024
    Publication date: September 5, 2024
    Inventors: Shang-Yun Hou, Sung-Hui Huang, Kuan-Yu Huang, Hsien-Pin Hu, Yushun Lin, Heh-Chang Huang, Hsing-Kuo Hsia, Chih-Chieh Hung, Ying-Ching Shih, Chin-Fu Kao, Wen-Hsin Wei, Li-Chung Kuo, Chi-Hsi Wu, Chen-Hua Yu
  • Patent number: 10239182
    Abstract: A polishing pad is provided. The polishing pad includes a polishing layer and a detection window. The detection window is disposed in the polishing layer. The modulus of the detection window is larger than the modulus of the polishing layer at 30° C., and the modulus of the detection window is smaller than the modulus of the polishing layer at 50° C.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: March 26, 2019
    Assignee: IV Technologies CO., Ltd.
    Inventors: Yi Jian, Wen-Chang Shih, Kun-Che Pai, Chin-Chih Chen
  • Publication number: 20170355061
    Abstract: A polishing pad is provided. The polishing pad includes a polishing layer and a detection window. The detection window is disposed in the polishing layer. The modulus of the detection window is larger than the modulus of the polishing layer at 30° C., and the modulus of the detection window is smaller than the modulus of the polishing layer at 50° C.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 14, 2017
    Applicant: IV Technologies CO., Ltd.
    Inventors: Yi Jian, Wen-Chang Shih, Kun-Che Pai, Chin-Chih Chen
  • Patent number: 8480773
    Abstract: A polishing pad having a compressibility-aiding stripe buried therein is fabricated by assembling the compressibility-aiding stripe in a mold cavity, filling the mold cavity with a polymer material, and releasing the polishing pad from the mold. Embodiments include assembling a compressibility-aiding stripe comprising a solid pillar of material having a larger compressibility than that of the polishing pad body, and releasing a single layer polishing pad from the mold.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: July 9, 2013
    Assignee: IV Technologies Co., Ltd.
    Inventors: Yung-Chung Chang, Shen-Yu Chang, Wen-Chang Shih
  • Publication number: 20110241258
    Abstract: A polishing pad having a compressibility-aiding stripe buried therein is fabricated by assembling the compressibility-aiding stripe in a mold cavity, filling the mold cavity with a polymer material, and releasing the polishing pad from the mold. Embodiments include assembling a compressibility-aiding stripe comprising a solid pillar of material having a larger compressibility than that of the polishing pad body, and releasing a single layer polishing pad from the mold.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 6, 2011
    Applicant: IV Technologies Co., Ltd.
    Inventors: Yung-Chung Chang, Shen-Yu Chang, Wen-Chang Shih
  • Patent number: 8016647
    Abstract: A polishing pad and fabricating method thereof includes a polishing pad body and at least a compressibility-aiding stripe. The compressibility-aiding stripe is buried in the polishing pad body and has a larger compressibility than that of the polishing pad body.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: September 13, 2011
    Assignee: IV Technologies Co., Ltd.
    Inventors: Yung-Chung Chang, Shen-Yu Chang, Wen-Chang Shih
  • Patent number: 7875335
    Abstract: The present invention provides a polishing pad. The polishing pad comprises a transparent part and a high molecular weight layer. The transparent part has an uneven side surface and the profile of the uneven side surface is selected from a group consisting of a serrated shape, a wavy shape and a toothed shape. The high molecular weight layer encircles the transparent part.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: January 25, 2011
    Assignee: IV Technologies Co., Ltd.
    Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu, Lung-Chen Wei
  • Patent number: 7604530
    Abstract: A surface treatment or a two-step injection molding is used to make an inlaid polishing pad. A surface of the inlaid polishing pad has areas of different rigidity to control the rigidity and compressibility of the inlaid polishing pad. Furthermore, methods of making such an inlaid polishing pads are also disclosed.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: October 20, 2009
    Assignee: IV Technologies Co., Ltd.
    Inventor: Wen-Chang Shih
  • Publication number: 20090170409
    Abstract: A polishing pad and a polishing method are described. The polishing pad is made from a composition compresing a polymeric matrix, an additive, and a rheology altering agent. The rheology altering agent enables a uniform distribution of the additive in the polymeric matrix.
    Type: Application
    Filed: August 15, 2008
    Publication date: July 2, 2009
    Applicant: IV TECHNOLOGIES CO., LTD.
    Inventors: Chao-Chin Wang, Wen-Chang Shih
  • Publication number: 20080264549
    Abstract: In a method of forming a layer of puncture-repair seal in tire, a PU gel consisting of polyisocyanate and polyether blending is prepared and evenly coated on an inner surface of a tire via a centrifugal force. When the tire rotating on road is pierced by a foreign matter, the puncture-repair seal of PU gel under a centrifugal force is able to ooze into a hole formed on the tire by the foreign matter to thereby prevent air in the tire from leaking. Since the layer of puncture-repair seal in the tire not only protects the tread but also side areas of the tire, a car with tires internally provided with the puncture-repair seal in the method of the present invention is safer for use.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Inventor: Wen Chang Shih
  • Publication number: 20080102741
    Abstract: A foamed plastic is cut to form a single-layer polishing pad having a desired rigidity and compressibility. A polishing surface of the polishing pad has a higher density than a mounting surface of the polishing pad. The polishing surface and the mounting surface may have different areas having different densities for achieving desired rigidity and compressibility property. Furthermore, methods of making such single-layer polishing pads are also disclosed.
    Type: Application
    Filed: December 26, 2007
    Publication date: May 1, 2008
    Applicant: IV TECHNOLOGIES CO., LTD.
    Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu
  • Patent number: 7335094
    Abstract: A foamed plastic is cut to form a single-layer polishing pad having a desired rigidity and compressibility. A polishing surface of the polishing pad has a higher density than a mounting surface of the polishing pad. The polishing surface and the mounting surface may have different areas having different densities for achieving desired rigidity and compressibility property. Furthermore, methods of making such single-layer polishing pads are also disclosed.
    Type: Grant
    Filed: July 22, 2006
    Date of Patent: February 26, 2008
    Assignee: IV Technologies Co., Ltd.
    Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu
  • Publication number: 20070259612
    Abstract: A polishing pad and fabricating method thereof includes a polishing pad body and at least a compressibility-aiding stripe. The compressibility-aiding stripe is buried in the polishing pad body and has a larger compressibility than that of the polishing pad body.
    Type: Application
    Filed: March 20, 2007
    Publication date: November 8, 2007
    Applicant: IV TECHNOLOGIES CO., LTD.
    Inventors: Yung-Chung Chang, Shen-Yu Chang, Wen-Chang Shih
  • Patent number: 7285233
    Abstract: A method of manufacturing a polishing pad is described. A mold having a mold cavity therein is provided. At least a strip is buried in the mold. A polymer foam material is injected into the mold cavity of the mold. The polymer foam material is cured to mold the polymer foam material into a molding polymer article. A mold release process is performed to obtain the molding polymer article. The strip on the molding article is removed to form a polishing pad having at least one groove thereon.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: October 23, 2007
    Assignee: IV Technologies Co., Ltd.
    Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu, Lung-Chen Wei
  • Patent number: 7258602
    Abstract: A polishing pad having grooved window therein is provided. The polishing pad comprises a polishing layer and a window, wherein the polishing layer has at least one first groove therein and the window has at least one second groove therein. More particularly, the first groove is deeper than the second groove. The polishing pad having a grooved window therein has advantages of providing precise endpoint detection and thereby reducing or resolving defect problems.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: August 21, 2007
    Assignee: IV Technologies Co., Ltd.
    Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu
  • Patent number: 7241408
    Abstract: The present invention provides a method of fabricating a polishing pad having a detection window thereon. A mold having a cavity therein and a transparent thermosetting plastic part that is incompletely hardened are provided. The transparent thermosetting plastic part is disposed in the mold and a high molecular weight foam is injected into the cavity of the mold. The transparent thermosetting plastic part and the high molecular weight foam are hardened at the same time. After the step of demolding is performed, a polishing pad having a detection window thereon is formed. Moreover, the transparent thermosetting plastic part can be designed to have the central portion thicker than its peripheral portion for preventing deformation that is caused by the material difference of the detection window and other portions of the polishing pad.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: July 10, 2007
    Assignee: I.V. Technologies Co., Ltd.
    Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu, Lung-Chen Wei
  • Publication number: 20070135030
    Abstract: A surface treatment or a two-step injection molding is used to make an inlaid polishing pad. A surface of the inlaid polishing pad has areas of different rigidity to control the rigidity and compressibility of the inlaid polishing pad. Furthermore, methods of making such an inlaid polishing pads are also disclosed.
    Type: Application
    Filed: February 15, 2007
    Publication date: June 14, 2007
    Applicant: IV TECHNOLOGIES CO., LTD.
    Inventor: Wen-Chang Shih
  • Patent number: 7208111
    Abstract: A surface treatment or a two-step injection molding is used to make an inlaid polishing pad. A surface of the inlaid polishing pad has areas of different rigidity to control the rigidity and compressibility of the inlaid polishing pad. Furthermore, methods of making such an inlaid polishing pads are also disclosed.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: April 24, 2007
    Assignee: IV Technologies Co., Ltd.
    Inventor: Wen-Chang Shih
  • Publication number: 20060258277
    Abstract: A foamed plastic is cut to form a single-layer polishing pad having a desired rigidity and compressibility. A polishing surface of the polishing pad has a higher density than a mounting surface of the polishing pad. The polishing surface and the mounting surface may have different areas having different densities for achieving desired rigidity and compressibility property. Furthermore, methods of making such single-layer polishing pads are also disclosed.
    Type: Application
    Filed: July 22, 2006
    Publication date: November 16, 2006
    Applicant: IV TECHNOLOGIES CO., LTD.
    Inventors: Wen-Chang Shih, Yung-Chung Chang, Min-Kuei Chu