Patents by Inventor Chih-Ching Lee

Chih-Ching Lee 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: 20240146205
    Abstract: A flyback power converter includes a power transformer, a first lossless voltage conversion circuit, a first low-dropout linear regulator and a secondary side power supply circuit. The first low-dropout linear regulator (LDO) generates a first operation voltage as power supply for being supplied to a sub-operation circuit. The secondary side power supply circuit includes a second lossless voltage conversion circuit and a second LDO. The second LDO generates a second operation voltage. The first operation voltage and the second operation voltage are shunted to a common node. When a first lossless conversion voltage is greater than a first threshold voltage, the second LDO is enabled to generate the second operation voltage to replace the first operation voltage as power supply supplied to the sub-operation circuit; wherein the second lossless conversion voltage is lower than the first lossless switching voltage.
    Type: Application
    Filed: September 23, 2023
    Publication date: May 2, 2024
    Inventors: Shin-Li Lin, He-Yi Shu, Shih-Jen Yang, Ta-Yung Yang, Yi-Min Shiu, Chih-Ching Lee, Yu-Chieh Hsieh, Chao-Chi Chen
  • Publication number: 20240113201
    Abstract: Methods and structures for modulating an inner spacer profile include providing a fin having an epitaxial layer stack including a plurality of semiconductor channel layers interposed by a plurality of dummy layers. In some embodiments, the method further includes removing the plurality of dummy layers to form a first gap between adjacent semiconductor channel layers of the plurality of semiconductor channel layers. Thereafter, in some examples, the method includes conformally depositing a dielectric layer to substantially fill the first gap between the adjacent semiconductor channel layers. In some cases, the method further includes etching exposed lateral surfaces of the dielectric layer to form an etched-back dielectric layer that defines substantially V-shaped recesses. In some embodiments, the method further includes forming a substantially V-shaped inner spacer within the substantially V-shaped recesses.
    Type: Application
    Filed: January 25, 2023
    Publication date: April 4, 2024
    Inventors: Chih-Ching WANG, Wei-Yang LEE, Bo-Yu LAI, Chung-I YANG, Sung-En LIN
  • Patent number: 11916110
    Abstract: Embodiments of the present disclosure provide a method for forming semiconductor device structures. The method includes forming a fin structure having a stack of semiconductor layers comprising first semiconductor layers and second semiconductor layers alternatingly arranged, forming a sacrificial gate structure over a portion of the fin structure, removing the first and second semiconductor layers in a source/drain region of the fin structure that is not covered by the sacrificial gate structure, forming an epitaxial source/drain feature in the source/drain region, removing portions of the sacrificial gate structure to expose the first and second semiconductor layers, removing portions of the second semiconductor layers so that at least one second semiconductor layer has a width less than a width of each of the first semiconductor layers, forming a conformal gate dielectric layer on exposed first and second semiconductor layers, and forming a gate electrode layer on the conformal gate dielectric layer.
    Type: Grant
    Filed: July 4, 2022
    Date of Patent: February 27, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Ching Wang, Wei-Yang Lee, Ming-Chang Wen, Jo-Tzu Hung, Wen-Hsing Hsieh, Kuan-Lun Cheng
  • Publication number: 20170112098
    Abstract: A pet furniture includes a connecting member, a board member, a base, a plurality supporting member, a positioning member and an engaging rod. The connecting member has a though hole portion and a plurality channel and engages with the engaging rod, the board member and the positioning member. The engaging rod secured the board members and the connecting members onto the base, and the supporting member can provide support between the base and the board member.
    Type: Application
    Filed: October 26, 2015
    Publication date: April 27, 2017
    Inventor: CHIH-CHING LEE
  • Patent number: 8826862
    Abstract: A support beam for a pet furniture includes a plurality of back plates, first hooks, second hooks and third hooks. Upper end and lower end of the back plate are formed with an insertion slot and a protrusion respectively. One side of the back plate is formed with a plurality of engaging troughs for allowing the first hooks and the third hooks to be disposed therein. The third hook is engaged with the first hook. By this structure, a shelf plate, a cat house and a cat ladder can be mounted onto the back plate by means of the engagement between the second hook and the third hook. Then, the back plate is fixed to a wall. In this way, the support beam for a pet furniture is obtained.
    Type: Grant
    Filed: September 18, 2011
    Date of Patent: September 9, 2014
    Inventor: Chih-Ching Lee
  • Publication number: 20130334377
    Abstract: A support frame for a pet feeder includes a fastening element, a plurality of accommodating bodies, a carrying element, a supporting element, an upper cover, a base, a supporting seat, a plurality of anti-slip blocks, and a shaft bolt. A user can hold the fastening element to lift up the whole support frame for a pet feeder. The carrying element has a plurality of C-shaped accommodating portions arranged like pedals for allowing the accommodating bodies to be disposed therein respectively. The base is formed with an accommodating trough for allowing a liquid to be received therein to thereby prevent ants or other insects from crawling into the pet food received in the accommodating bodies. Thus, the pets can eat the pet food more conveniently and safely.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Inventor: CHIH-CHING LEE
  • Publication number: 20130068171
    Abstract: A support beam for a pet furniture includes a plurality of back plates, first hooks, second hooks and third hooks. Upper end and lower end of the back plate are formed with an insertion slot and a protrusion respectively. One side of the back plate is formed with a plurality of engaging troughs for allowing the first hooks and the third hooks to be disposed therein. The third hook is engaged with the first hook. By this structure, a shelf plate, a cat house and a cat ladder can be mounted onto the back plate by means of the engagement between the second hook and the third hook. Then, the back plate is fixed to a wall. In this way, the support beam for a pet furniture is obtained.
    Type: Application
    Filed: September 18, 2011
    Publication date: March 21, 2013
    Inventor: Chih-Ching Lee
  • Patent number: D711052
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: August 12, 2014
    Inventor: Chih-Ching Lee
  • Patent number: D839793
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: February 5, 2019
    Assignee: Home Medical Products Inc.
    Inventor: Chih-Ching Lee