Patents by Inventor Chih Chung Chang

Chih Chung Chang 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: 20230008005
    Abstract: The embodiments described herein are directed to a method for reducing fin oxidation during the formation of fin isolation regions. The method includes providing a semiconductor substrate with an n-doped region and a p-doped region formed on a top portion of the semiconductor substrate; epitaxially growing a first layer on the p-doped region; epitaxially growing a second layer different from the first layer on the n-doped region; epitaxially growing a third layer on top surfaces of the first and second layers, where the third layer is thinner than the first and second layers. The method further includes etching the first, second, and third layers to form fin structures on the semiconductor substrate and forming an isolation region between the fin structures.
    Type: Application
    Filed: July 28, 2022
    Publication date: January 12, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hung-Ju Chou, Chih-Chung Chang, Jiun-Ming Kuo, Che-Yuan Hsu, Pei-Ling Gao, Chen-Hsuan Liao
  • Publication number: 20220416058
    Abstract: Semiconductor structures and methods of forming the same are provided. A method according to the present disclosure includes forming a stack of epitaxial layers over a substrate, forming a first fin-like structure and a second fin-like structure from the stack, forming an isolation feature between the first fin-like structure and the second fin-like structure, forming a cladding layer over the first fin-like structure and the second fin-like structure, conformally depositing a first dielectric layer over the cladding layer, depositing a second dielectric layer over the first dielectric layer, planarizing the first dielectric layer and the second dielectric layer until the cladding layer are exposed, performing an etch process to etch the second dielectric layer to form a helmet recess, performing a trimming process to trim the first dielectric layer to widen the helmet recess, and depositing a helmet feature in the widened helmet recess.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 29, 2022
    Inventors: Jen-Hong Chang, Yi-Hsiu Liu, You-Ting Lin, Chih-Chung Chang, Kuo-Yi Chao, Jiun-Ming Kuo, Yuan-Ching Peng, Sung-En Lin, Chia-Cheng Chao, Chung-Ting Ko
  • Patent number: 11532733
    Abstract: Semiconductor structures and methods of forming the same are provided. A method according to the present disclosure includes forming a stack of epitaxial layers over a substrate, forming a first fin-like structure and a second fin-like structure from the stack, forming an isolation feature between the first fin-like structure and the second fin-like structure, forming a cladding layer over the first fin-like structure and the second fin-like structure, conformally depositing a first dielectric layer over the cladding layer, depositing a second dielectric layer over the first dielectric layer, planarizing the first dielectric layer and the second dielectric layer until the cladding layer are exposed, performing an etch process to etch the second dielectric layer to form a helmet recess, performing a trimming process to trim the first dielectric layer to widen the helmet recess, and depositing a helmet feature in the widened helmet recess.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: December 20, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jen-Hong Chang, Yi-Hsiu Liu, You-Ting Lin, Chih-Chung Chang, Kuo-Yi Chao, Jiun-Ming Kuo, Yuan-Ching Peng, Sung-En Lin, Chia-Cheng Chao, Chung-Ting Ko
  • Patent number: 11532718
    Abstract: A semiconductor device includes a substrate, a plurality of insulators, a liner structure and a gate stack. The substrate has fins and trenches in between the fins. The insulators are disposed within the trenches of the substrate. The liner structure is disposed on the plurality of insulators and across the fins, wherein the liner structure comprises sidewall portions and a cap portion, the sidewall portions is covering sidewalls of the fins, the cap portion is covering a top surface of the fins and joined with the sidewall portions, and a maximum thickness T1 of the cap portion is greater than a thickness T2 of the sidewall portions. The gate stack is disposed on the liner structure and across the fins.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: December 20, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chen-Hsuan Liao, Chih-Chung Chang, Chun-Heng Chen, Jiun-Ming Kuo
  • Publication number: 20220381058
    Abstract: Provided is an electronic lock featuring foolproofness and repositionability, including: a lock body, which is formed with teeth and a receiving cavity; a repositionable plate, which is formed with an elongated hole, a perforated portion, and a projecting spot, and is formed, on an underside thereof, with teeth, such that the teeth of the underside of the repositionable plate and the teeth of the lock body are mutually engageable with each other and the elongated hole of the repositionable plate is fixable to the receiving cavity of the lock body by a fastening element, and an escutcheon, which is formed with a fixing hole and a foolproof hole, such that the escutcheon is fit, by means of the foolproof hole, to the projecting spot of the repositionable plate and the escutcheon is fixed to the perforated portion of the repositionable plate by a fastening element.
    Type: Application
    Filed: May 31, 2021
    Publication date: December 1, 2022
    Inventor: CHIH CHUNG CHANG
  • Publication number: 20220328627
    Abstract: A semiconductor device includes a first channel region, a second channel region, and a first insulating fin, the first insulating fin being interposed between the first channel region and the second channel region. The first insulating fin includes a lower portion and an upper portion. The lower portion includes a fill material. The upper portion includes a first dielectric layer on the lower portion, the first dielectric layer being a first dielectric material, a first capping layer on the first dielectric layer, the first capping layer being a second dielectric material, the second dielectric material being different than the first dielectric material, and a second dielectric layer on the first capping layer, the second dielectric layer being the first dielectric material.
    Type: Application
    Filed: August 16, 2021
    Publication date: October 13, 2022
    Inventors: Jen-Hong Chang, Yi-Hsiu Liu, You-Ting Lin, Chih-Chung Chang, Kuo-Yi Chao, Jiun-Ming Kuo, Yuan-Ching Peng, Sung-En Lin, Chia-Cheng Chao, Chung-Ting Ko
  • Publication number: 20220098899
    Abstract: A door lock facility includes a tongue pivotally attached to a housing with a pivot pin, an elbow is rotatably attached to the housing and includes a limb engageable with and detachable from an inner end portion of the tongue, an anchor is rotatably attached to the housing and includes one end portion located close to the tongue for anchoring a free end portion of the limb between the anchor and the tongue, a follower is slidably engaged in an actuator and movable into and out of the actuator for moving the anchor toward and away from the limb, and the actuator includes a rod slidably engaged in the actuator and moveable out of the actuator in order to rotate the elbow relative to the housing and to move the limb of the elbow from the tongue.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventor: Chih Chung Chang
  • Publication number: 20220098900
    Abstract: A door lock device includes a tongue pivotally attached to a housing with a pivot pin, an elbow is rotatably attached to the housing and includes a limb engageable with and detachable from an inner end portion of the tongue, an anchor is rotatably attached to the housing and includes one end portion located close to the tongue for anchoring a free end portion of the limb between the anchor and the tongue, a follower is slidably engaged in an actuator and movable into and out of the actuator for moving the anchor toward and away from the limb, and the actuator includes a rod slidably engaged in the actuator and moveable out of the actuator in order to rotate the elbow relative to the housing and to move the limb of the elbow from the tongue.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventor: Chih Chung CHANG
  • Publication number: 20220037487
    Abstract: A semiconductor device includes a substrate, a plurality of insulators, a liner structure and a gate stack. The substrate has fins and trenches in between the fins. The insulators are disposed within the trenches of the substrate. The liner structure is disposed on the plurality of insulators and across the fins, wherein the liner structure comprises sidewall portions and a cap portion, the sidewall portions is covering sidewalls of the fins, the cap portion is covering a top surface of the fins and joined with the sidewall portions, and a maximum thickness T1 of the cap portion is greater than a thickness T2 of the sidewall portions. The gate stack is disposed on the liner structure and across the fins.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 3, 2022
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chen-Hsuan Liao, Chih-Chung Chang, Chun-Heng Chen, Jiun-Ming Kuo
  • Patent number: 11180931
    Abstract: A door lock device is worked in cooperate with a latch bolt, and includes a solenoid device engaged in a housing, a catch member pivotally attached to the housing with a spindle, two arms connected between the catch member and the spindle, and the solenoid device includes a shaft slidably engaged in a receptacle, and the shaft includes an upper end portion extendible upwardly beyond the receptacle and a lower end portion extendible downwardly beyond the receptacle, and the solenoid device includes two anchors on the upper end portion for selectively engaging with the upper arm, and two stops on the lower end portion for selectively engaging with the lower arm of the latch device, and for allowing the catch member to be evenly engaged with the latch bolt.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 23, 2021
    Assignee: GIANNI INDUSTRIES INC.
    Inventor: Chih Chung Chang
  • Publication number: 20210257462
    Abstract: A semiconductor structure includes a SiGe fin protruding from a substrate, where the SiGe fin includes a top portion having a first sidewall and a second sidewall and a bottom portion having a third sidewall and a fourth sidewall, and where a first transition region connecting the first sidewall to the third sidewall and a second transition region connecting the second sidewall to the fourth sidewall each have a tapered profile extending away from the first sidewall and the second sidewall, respectively, and a Si-containing layer disposed on the top portion of the SiGe fin, where a portion of the Si-containing layer on the first transition region extends away from the first sidewall by a first lateral distance and a portion of the Si-containing layer on the second transition region extends away from the second sidewall by a second lateral distance that is different from the first lateral distance.
    Type: Application
    Filed: December 18, 2020
    Publication date: August 19, 2021
    Inventors: Yu-Shan Lu, Hung-Ju Chou, Pei-Ling Gao, Chen-Hsuan Liao, Chih-Chung Chang, Jiun-Ming Kuo, Che-Yuan Hsu
  • Publication number: 20210257360
    Abstract: Semiconductor devices and methods of forming the same are provided. In an embodiment, a semiconductor device includes a first fin extending along a first direction, a second fin extending parallel to the first fin, and a gate structure over and wrapping around the first fin and the second fin, the gate structure extending along a second direction perpendicular to the first direction. The first fin bents away from the second fin along the second direction and the second fin bents away from the first fin along the second direction.
    Type: Application
    Filed: September 15, 2020
    Publication date: August 19, 2021
    Inventors: Jiun-Ming Kuo, Pei-Ling Gao, Chen-Hsuan Liao, Hung-Ju Chou, Chih-Chung Chang, Che-Yuan Hsu
  • Publication number: 20210249312
    Abstract: The embodiments described herein are directed to a method for reducing fin oxidation during the formation of fin isolation regions. The method includes providing a semiconductor substrate with an n-doped region and a p-doped region formed on a top portion of the semiconductor substrate; epitaxially growing a first layer on the p-doped region; epitaxially growing a second layer different from the first layer on the n-doped region; epitaxially growing a third layer on top surfaces of the first and second layers, where the third layer is thinner than the first and second layers. The method further includes etching the first, second, and third layers to form fin structures on the semiconductor substrate and forming an isolation region between the fin structures.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 12, 2021
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hung-Ju CHOU, Chih-Chung CHANG, Jiun-Ming KUO, Che-Yuan HSU, Pei-Ling GAO, Chen-Hsuan LIAO
  • Publication number: 20200240177
    Abstract: A door lock device is worked in cooperate with a latch bolt, a press bar is attached to a door element and engaged with a locking pin and the latch bolt, a housing is attached to a door member, and a block device includes a board engaged into the chamber of the housing and secured to the housing, and the board includes a lever extended from the board for aligning with the locking pin and for selectively engaging with the locking pin and for preventing the locking pin from engaging into the chamber of the housing. The housing includes an opening formed in one side and communicating with the chamber of the housing for allowing the latch bolt to be engaged into the chamber of the housing. The lever of the board is engaged in the opening of the housing.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Inventor: Chih Chung CHANG
  • Patent number: 10667207
    Abstract: In embodiments of access point assisted roaming, a mobile device, such as a mobile phone, tablet computer, or other portable device is implemented for wireless connection with access points, such as Wi-Fi access points. An access point controller can receive a request for a neighbor report from the mobile device, and also obtain a travel direction of the mobile device. The access point controller is implemented to determine access points that are each configured for a wireless connection with a communication system of the mobile device, where a wireless connection with an access point is based in part on a detected signal strength of an access point. The access point controller can then generate the neighbor report that lists one or more of the access points in order of connection likelihood and based on the travel direction of the mobile device.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: May 26, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chih-Chung Chang, Yatharth Gupta
  • Publication number: 20200071959
    Abstract: A door lock device is worked in cooperate with a latch bolt, and includes a solenoid device engaged in a housing, a catch member pivotally attached to the housing with a spindle, two arms connected between the catch member and the spindle, and the solenoid device includes a shaft slidably engaged in a receptacle, and the shaft includes an upper end portion extendible upwardly beyond the receptacle and a lower end portion extendible downwardly beyond the receptacle, and the solenoid device includes two anchors on the upper end portion for selectively engaging with the upper arm, and two stops on the lower end portion for selectively engaging with the lower arm of the latch device, and for allowing the catch member to be evenly engaged with the latch bolt.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 5, 2020
    Inventor: Chih Chung CHANG
  • Patent number: 10387329
    Abstract: Profiling cache replacement is a technique for managing data migration between a main memory and a cache memory to improve overall system performance. A profiler maintains counters that count memory requests for access to the pages maintained in both the cache memory and the main memory. Based on this access-request count information, a mover moves pages between the main and cache memories. For example, the mover can swap little-requested pages of the cache memory with highly-requested pages of the main memory. The mover can do so, for instance, when the counters indicate that the number of page access requests for highly-requested pages of the main memory is greater than the number of page access requests for little-requested pages of the cache memory. To avoid impeding the operations of memory users, the mover can perform page swapping in the background at predetermined time intervals, such as once every microsecond (?s).
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: August 20, 2019
    Assignee: Google LLC
    Inventor: Chih-Chung Chang
  • Publication number: 20190203503
    Abstract: A door lock device includes a tongue pivotally engaged in a housing, a latch slidably received in the housing for latching the tongue to the housing, a sliding member located above the latch for forcing the latch to engage with the tongue, a follower slidably engaged in the sliding member and having a projection for moving the sliding member away from the tongue, a lever arm is pivotally attached to the housing and includes an end portion engaged with the follower for moving the follower up and down relative to the sliding member and the housing, a rotary member is attached to the housing and includes a stud engaged with the lever arm for rotating the lever arm relative to the housing, and a link is slidably engaged in the housing and connected to the rotary member.
    Type: Application
    Filed: December 28, 2017
    Publication date: July 4, 2019
    Inventor: Chih Chung CHANG
  • Patent number: 10234497
    Abstract: Techniques are disclosed for increasing a quantity of candidate electronic-component states determinable from one or more input pins. The techniques may use an internal pull resistor to test a strength of an external resistor to gain two extra candidate pin states. Additional candidate electronic-component states are then gained based on the extra candidate pin states, combinations of pin states of two or more input pins, and/or detecting a short between two or more input pins.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: March 19, 2019
    Assignee: Google LLC
    Inventors: Chiu-Mao Chang, Chih-Chung Chang
  • Publication number: 20190041452
    Abstract: Techniques are disclosed for increasing a quantity of candidate electronic-component states determinable from one or more input pins. The techniques may use an internal pull resistor to test a strength of an external resistor to gain two extra candidate pin states. Additional candidate electronic-component states are then gained based on the extra candidate pin states, combinations of pin states of two or more input pins, and/or detecting a short between two or more input pins.
    Type: Application
    Filed: August 7, 2017
    Publication date: February 7, 2019
    Applicant: Google LLC
    Inventors: Chiu-Mao Chang, Chih-Chung Chang