Patents by Inventor Hung-Wei Chang

Hung-Wei 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).

  • Patent number: 11915976
    Abstract: An ammonium fluoride gas may be used to form a protection layer for one or more interlayer dielectric layers, one or more insulating caps, and/or one or more source/drain regions of a semiconductor device during a pre-clean etch process. The protection layer can be formed through an oversupply of nitrogen trifluoride during the pre-clean etch process. The oversupply of nitrogen trifluoride causes an increased formation of ammonium fluoride, which coats the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) with a thick protection layer. The protection layer protects the interlayer dielectric layer(s), the insulating cap(s), and/or the source/drain region(s) during the pre-clean process from being etched by fluorine ions formed during the pre-clean process.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Wei Chu, Ying-Chi Su, Yu-Kai Chen, Wei-Yip Loh, Hung-Hsu Chen, Chih-Wei Chang, Ming-Hsing Tsai
  • Publication number: 20190159570
    Abstract: The present invention provides a steam-off gel nail removal device comprising a casing. A plurality of finger insertion holes for finger insertion is disposed on one side of the casing, and a receiving space is disposed on the inner side of the casing. The receiving space has therein a heating device and a control device connected to the heating device. A gel polish removing solution container is disposed on the inner side of the receiving space. The heating device is disposed on one side of the gel polish removing solution container to heat the gel polish removing solution container. The steam-off gel nail removal device of the present invention further comprises a safety switch and a finger separation unit for taking safety-enhancing measures to ensure user safety. The finger insertion holes are sufficient for every user's left hand or right hand to be placed comfortably on the steam-off gel nail removal device.
    Type: Application
    Filed: January 2, 2018
    Publication date: May 30, 2019
    Inventors: Wan Chieh HSIEH, Pai Yao HSIEH, Hung Wei CHANG, Kuan Chen LIAO
  • Patent number: 9497865
    Abstract: A method for forming a printed circuit board includes providing a substrate including a first device region, a second device region and a dicing channel region between the first device region and the second device region. A first circuit is formed on the substrate. An insulating layer is formed on the first circuit and the substrate. At least one build-up circuit is formed on the insulating layer. A photoresist layer is formed on the at least one build-up circuit. An image transferring process is performed to pattern the photoresist layer to form a dam structure in the dicing channel region. A solder mask layer is formed on the at least one build-up circuit. The dam structure is removed to form a trench in the solder mask layer.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: November 15, 2016
    Assignee: Nan Ya PCB Corp.
    Inventors: Hung-Wei Chang, Tai-Yi Chou
  • Publication number: 20140216787
    Abstract: A method for forming a printed circuit board is disclosed. A substrate including a first device region, a second device region and a dicing channel region between the first device region and the second device region is provided. A first circuit is formed on the substrate. An insulating layer is formed on the first circuit and the substrate. At least one build-up circuit is formed on the insulating layer. A photoresist layer is formed on the at least one build-up circuit. An image transferring process is performed to pattern the photoresist layer to form a dam structure in the dicing channel region. A solder mask layer is formed on the at least one build-up circuit. The dam structure is removed to form a trench in the solder mask layer.
    Type: Application
    Filed: October 1, 2013
    Publication date: August 7, 2014
    Inventors: Hung-Wei Chang, Tai-Yi Chou
  • Publication number: 20140055943
    Abstract: A metal shock absorber, an assembly of a metal shock absorber and a media recording unit, and a media recording device are provided. The metal shock absorber has a pair of horizontal portions, a perpendicular portion connected between the horizontal portions, and a pair of limiting portions. Each of the horizontal portions has a first arcuate protrusion protruding towards another first arcuate protrusion. The perpendicular portion is perpendicularly connected between the pair of horizontal portions, and has an assembling arm. The limiting portions are disposed at opposite sides of the perpendicular portion that are not connected with the horizontal portions. Since the thickness, the tolerance and costs of the metal shock absorber are less than those of the conventional rubber shock absorber, the assembly of the metal shock absorber with the media recording unit has a favorable assembly reliability, and therefore costs of the recording device are effectively lowered.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 27, 2014
    Applicants: Kinpo Electronics, Inc., Cal-Comp Electronics & Communications Company Limited
    Inventors: Hung-Wei Chang, Yih-Her Lin
  • Patent number: 8148833
    Abstract: An on-road energy conversion and vibration absorber apparatus receives the kinetic energy from moving vehicles and pedestrians when being weighed down, and converts the received kinetic energy into a potential energy using a restorable elastic element compressing a fluid thereby storing the potential energy in a pressure chamber, and then conducting the pressurized fluid to pass though a check valve along a conduit and drive a vane wheel by releasing its potential energy. The vane wheel in turn drives a generator to generate electric energy, and the vibration of the vehicles is alleviated by cushion effect provided by the apparatus.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: April 3, 2012
    Inventors: Hung-Wei Chang, Chih-Yang Lee
  • Publication number: 20110215593
    Abstract: An on-road energy conversion and vibration absorber apparatus receives the kinetic energy from moving vehicles and pedestrians when being weighed down, and converts the received kinetic energy into a potential energy using a restorable elastic element compressing a fluid thereby storing the potential energy in a pressure chamber, and then conducting the pressurized fluid to pass though a check valve along a conduit and drive a vane wheel by releasing its potential energy. The vane wheel in turn drives a generator to generate electric energy, and the vibration of the vehicles is alleviated by cushion effect provided by the apparatus.
    Type: Application
    Filed: May 18, 2011
    Publication date: September 8, 2011
    Inventors: Hung-Wei Chang, Chih-Yang Lee
  • Patent number: 7926778
    Abstract: A support having a transmission mechanism using a thin connecting piece includes a support base body, a transmission plate, a supporting plate and at least one thin connecting piece. The support base body has a base and brackets extending upwardly from the base. The distal end of the bracket is provided with a fixing sleeve. One end of the transmission plate is pivotally connected to the bracket. The supporting plate connected to the other end of the transmission plate. The supporting plate is provided with pivoting sleeves. The thin connecting piece is disposed on the transmission plate. Via this arrangement, the supporting plate can be kept vertical in synchronization with the swinging of the transmission plate. Thereby saving the space greatly and reducing the whole volume occupied by the support and peripheral elements. In this way, the assembling process is simplified, the productivity is increased, and the cost is reduced.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: April 19, 2011
    Assignee: Syncmold Enterprise Corp.
    Inventors: Ching-Hui Yen, Chun-Lung Chen, Hung-Wei Chang
  • Patent number: 7828255
    Abstract: A supporting rack having a compensating mechanism includes a rack body, an action force compensating assembly, a transmission element and a supporting plate. The rack body has a base and support arms. The action force compensating assembly is provided in the rack body. The elastic element is firmly connected to the base. One end of the dragging piece is connected to the hooking plate. The rotating piece is provided on a distal end of the support arm. The other end of the dragging piece is connected to the rotating piece. One end of the transmission element is firmly connected to the rotating piece and pivoted on the support arm. Via the above arrangement, an appropriate force can be applied to the supporting plate. When the user intends to adjust the supporting plate, the elastic element can generate an effect for compensating the action force, thereby providing a better operation feeling.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: November 9, 2010
    Assignee: Syncmold Enterprise Corp.
    Inventors: Ching-Hui Yen, Chun-Lung Chen, Hung-Wei Chang
  • Patent number: 7718631
    Abstract: The present invention provides three BCAS2 related nucleotide sequences. The present invention also provides a composition comprising a nucleotide sequence of small interfering RNA of BCAS2 gene. The present invention further provides a method for treating p53 containing cancer comprising administrating a subject with an effective amount of the said composition.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: May 18, 2010
    Assignee: National Taiwan University
    Inventors: Show-Li Chen, Shinn-Tsuen Lin, Hung-Wei Chang
  • Publication number: 20100072758
    Abstract: An on-road energy conversion and vibration absorber apparatus receives the kinetic energy from moving vehicles and pedestrians when being weighed down, and converts the received kinetic energy into a static energy using a restorable elastic element compressing a fluid thereby storing the static energy in a pressure chamber, and then conducting the pressurized fluid to pass though a check valve along a conduit and drive a vane wheel by releasing its static energy. The vane wheel in turn drives a generator to generate electric energy, the vibration of the vehicles is alleviated by cushion effect provided by the apparatus.
    Type: Application
    Filed: September 20, 2008
    Publication date: March 25, 2010
    Inventors: Hung-Wei CHANG, Chih-Yang LEE
  • Patent number: 7681845
    Abstract: A supporting stand having a lifting and positioning means includes a support, a sliding body, and a base. The sliding body has a swinging rode and is movably provided in the support. The base is connected to the support. The support has an elastic recovering means and a return path means. One end of the elastic recovering means is connected to the support, while the other end thereof is connected to the sliding body. The elastic recovering means provides a force for automatic recovery. The swinging rod is located above the return path means. In use, with the vertical movement of the sliding body in the support and the cooperation of the swinging rod and the return path means, the height of the supporting stand can be adjusted according to the user's demand. Via aforementioned arrangement, a supporting stand with no tenons on its external surface can be formed.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: March 23, 2010
    Assignee: Syncmold Enterprise Corp.
    Inventor: Hung-Wei Chang
  • Publication number: 20090212175
    Abstract: A support having a transmission mechanism using a thin connecting piece includes a support base body, a transmission plate, a supporting plate and at least one thin connecting piece. The support base body has a base and brackets extending upwardly from the base. The distal end of the bracket is provided with a fixing sleeve. One end of the transmission plate is pivotally connected to the bracket. The supporting plate connected to the other end of the transmission plate. The supporting plate is provided with pivoting sleeves. The thin connecting piece is disposed on the transmission plate. Via this arrangement, the supporting plate can be kept vertical in synchronization with the swinging of the transmission plate. Thereby saving the space greatly and reducing the whole volume occupied by the support and peripheral elements. In this way, the assembling process is simplified, the productivity is increased, and the cost is reduced.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 27, 2009
    Inventors: Ching-Hui Yen, Chun-Lung Chen, Hung-Wei Chang
  • Publication number: 20090206212
    Abstract: A supporting rack having a compensating mechanism includes a rack body, an action force compensating assembly, a transmission element and a supporting plate. The rack body has a base and support arms. The action force compensating assembly is provided in the rack body. The elastic element is firmly connected to the base. One end of the dragging piece is connected to the hooking plate. The rotating piece is provided on a distal end of the support arm. The other end of the dragging piece is connected to the rotating piece. One end of the transmission element is firmly connected to the rotating piece and pivoted on the support arm. Via the above arrangement, an appropriate force can be applied to the supporting plate. When the user intends to adjust the supporting plate, the elastic element can generate an effect for compensating the action force, thereby providing a better operation feeling.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 20, 2009
    Inventors: Ching-Hui Yen, Chun-Lung Chen, Hung-Wei Chang
  • Publication number: 20080221059
    Abstract: The present invention provides three BCAS2 related nucleotide sequences. The present invention also provides a composition comprising a nucleotide sequence of small interfering RNA of BCAS2 gene. The present invention further provides a method for treating p53 containing cancer comprising administrating a subject with an effective amount of the said composition.
    Type: Application
    Filed: April 3, 2008
    Publication date: September 11, 2008
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: SHOW-LI CHEN, SHINN-TSUEN LIN, HUNG-WEI CHANG
  • Patent number: 7024729
    Abstract: A rotation apparatus comprises a sleeve, a retaining means, a first base, a second base, a pivot and a pivot base. The sleeve passes through the first base and the second base and screws into the retaining means. The pivot is fixed onto the second base and the pivot base is coupled to the pivot. After mounting a display panel to a host body via the rotation apparatus, the display panel can be flipped open via the pivot/pivot base linkage and then rotated around the axis of the sleeve. Furthermore, the components constituting the rotation apparatus are easy to manufacture and assemble.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: April 11, 2006
    Assignee: Arima Computer Corporation
    Inventors: Hung-Wei Chang, Jui-Liang Ho, Chyun-Nan Liu
  • Publication number: 20050206171
    Abstract: A two-sided engaging device for engaging frames of a portable device is provided. The two-sided engaging device for engaging frames of a portable device includes a main body disposed on a first frame of the portable device; an engaging element connected to the main body and having two hooks and at least one pillar; wherein the hooks are respectively positioned at an upper side and a lower side of the engaging element; and a switch having at least one Z-shaped guiding groove for guiding the pillar passing therethrough so as to switch a position of the engaging element.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 22, 2005
    Inventors: Hung-Wei Chang, Jui-Liang Ho
  • Patent number: D857993
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: August 27, 2019
    Assignee: COSMEX CO., LTD.
    Inventors: Wan Chieh Hsieh, Pai Yao Hsieh, Hung Wei Chang, Kuan Chen Liao
  • Patent number: D858882
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: September 3, 2019
    Assignee: COSMEX CO., LTD.
    Inventors: Wan Chieh Hsieh, Pai Yao Hsieh, Hung Wei Chang, Kuan Chen Liao
  • Patent number: D890431
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 14, 2020
    Assignee: COSMEX CO. LTD.
    Inventors: Wan Chieh Hsieh, Pai Yao Hsieh, Hung Wei Chang, Hao-Hong Ciou