Patents by Inventor Ching-Sheng Chang

Ching-Sheng 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: 20200020576
    Abstract: The present invention provides a method for forming a semiconductor device, comprising: first, a target layer is provided, an etching stop layer is formed on the target layer, afterwards, a first photoresist layer is formed on the etching stop layer, and a first etching process is then performed, to forma plurality of first trenches in the etching stop layer. Next, a second photoresist layer is formed on the etching stop layer, portion of the second photoresist layer fills in each first trench, a second etching process is then performed to form a plurality of second trenches in the etching stop layer, and using the remaining etching stop layer as a hard mask, a third etching process is performed to remove parts of the target layer.
    Type: Application
    Filed: July 11, 2018
    Publication date: January 16, 2020
    Inventors: Ching-Chih Chang, Yuan-Fu Ko, Chih-Sheng Chang
  • Patent number: 10515853
    Abstract: A method of wafer dicing is provided. The method of wafer dicing includes: providing a wafer, wherein the wafer includes a substrate, dies formed in and over the substrate and a scribe line structure located in a scribe line region between adjacent dies; removing a portion of the scribe line structure around a test device in the scribe line structure; attaching a front side of the wafer with a first tape; removing a portion of the substrate overlapping with the scribe line region from a back side of the wafer; attaching the back side of the wafer with a second tape; and removing the first tape along with the remaining portion of the scribe line structure attached thereon, leaving the dies separately attached on the second tape.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 24, 2019
    Assignee: Winbond Electronics Corp.
    Inventors: Ching-Wei Chen, Cheng-Hong Wei, Shuo-Che Chang, Hung-Sheng Chen, Hsin-Hung Chou
  • Publication number: 20190369363
    Abstract: An optical lens includes a first lens group, a second lens group and an aperture stop disposed between the first lens group and the second lens group. The optical lens satisfies the conditions of 7 mm<D<25 mm and 0.3<D/LT<0.5, where D is a diameter of a lens surface of the second lens group furthest from the first lens group and LT is a total lens length measured along an optical axis between a lens surface of the first lens group furthest from the second lens group and the lens surface of the second lens group furthest from the first lens group.
    Type: Application
    Filed: April 24, 2019
    Publication date: December 5, 2019
    Inventors: Hsin-Te CHEN, Ching-Sheng CHANG, Kuo-Chuan WANG
  • Publication number: 20190278344
    Abstract: A method for cooling a heat source by liquefied gas is provided, wherein the heat source is cooled by filling a liquefied gas into a chamber close to the heat source, and the heat source is located in an electronic device. The temperature of the heat source is detected, and the liquefied gas is filled into the chamber via an inlet valve to absorb heat generated by the heat source when the temperature of the heat source rises to a first value. Specifically, an exhaust valve that communicates with the chamber is opened when the temperature of the heat source decreases and then rises to a second value or the pressure inside the chamber reaches a critical value, so that the liquefied gas in the chamber can be vaporized and discharged through the exhaust valve to an atmospheric environment.
    Type: Application
    Filed: October 4, 2018
    Publication date: September 12, 2019
    Inventors: Yi-Mu CHANG, Ching-Piao KUAN, Fu-Sheng TENG
  • Publication number: 20190278055
    Abstract: An optical lens includes a first lens group and a second lens group arranged in order from a first side to a second side, and an aperture stop disposed between the first lens group and the second lens group. The optical lens satisfies the condition of LT/IMH<4.7, where IMH is semi-diagonal image height on an image plane, and LT is a distance along an optical axis between a surface of a first lens of the first lens group facing the first side and a surface of a last lens of the second lens group facing the second side. The first lens is closest to the first side among the first lens group, and the last lens is closest to the second side among the second lens group.
    Type: Application
    Filed: June 15, 2018
    Publication date: September 12, 2019
    Inventors: YING-HSIU LIN, CHING-SHENG CHANG, CHEN-CHENG LEE, KUO-CHUAN WANG
  • Patent number: 10411333
    Abstract: An electronic device includes a dielectric substrate, a first radiation element, a second radiation element, a third radiation element, and a sensing pad. The first radiation element includes a first branch, a second branch, and a first connection element. The first connection element is coupled between the first branch and the second branch. The second branch is coupled to a ground voltage. The second radiation element has a feeding point. The third radiation element is coupled to the feeding point. An antenna structure is formed by the first radiation element, the second radiation element, and the third radiation element. The sensing pad includes a third branch, a fourth branch, and a second connection element. The second connection element is coupled between the third branch and the fourth branch. The second connection element has a meandering structure.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 10, 2019
    Assignee: ACER INCORPORATED
    Inventors: Kun-Sheng Chang, Ching-Chi Lin
  • Patent number: 10390020
    Abstract: A video encoding method includes receiving a source video frame, dividing the source video frame into a coding tree unit, determining a coding unit from the coding tree unit, enabling or disabling a coding mode of the coding unit, determining, if the coding mode is enabled, whether to evaluate a size of a transform unit for the enabled coding mode, and determining a transform unit of the coding unit for the enabled coding mode, wherein the size of the coding unit is defined by a number (N) of samples.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 20, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Jih-Sheng Tu, Ching-Chieh Lin
  • Publication number: 20190207127
    Abstract: Organic metal compounds and organic light-emitting devices employing the same are provided. The organic metal compound has a chemical structure of Formula (I) or Formula (II): wherein X is O or S; L is R12 is and, n is 0, 1, or 2.
    Type: Application
    Filed: July 5, 2018
    Publication date: July 4, 2019
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jin-Sheng LIN, Pang-Chi HUANG, Yung-Chen CHENG, Ching-Hui CHOU, Jia-Lun LIOU, Meng-Hao CHANG, Mei-Rurng TSENG
  • Publication number: 20190165110
    Abstract: The present disclosure provides a semiconductor structure, including providing a metal layer, an adhesion-enhancing layer over the metal layer, a dielectric stack over the adhesion-enhancing layer, a contact penetrating the dielectric stack and the adhesion-enhancing layer and connecting with the metal layer, a barrier layer disposed between the contact and the dielectric stack, and a high-k dielectric layer disposed between the contact and the barrier layer.
    Type: Application
    Filed: April 25, 2018
    Publication date: May 30, 2019
    Inventors: YAO-WEN CHANG, GUNG-PEI CHANG, CHING-SHENG CHU, CHERN-YOW HSU
  • Patent number: 9939611
    Abstract: An optical lens including a first lens group and a second lens group is provided. The first lens group is disposed between a magnified side and a reduced side and has a negative refractive power. The first lens group includes four lenses. Two lenses closest to the magnified side in the first lens group are aspheric lenses. The second lens group is disposed between the first lens group and the reduced side and has a positive refractive power. The second lens group includes at least seven lenses.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: April 10, 2018
    Assignee: Young Optics Inc.
    Inventors: Ching-Sheng Chang, Yen-Te Lee, Kuo-Chuan Wang
  • Publication number: 20160170175
    Abstract: An optical lens including a first lens group and a second lens group is provided. The first lens group is disposed between a magnified side and a reduced side and has a negative refractive power. The first lens group includes four lenses. Two lenses closest to the magnified side in the first lens group are aspheric lenses. The second lens group is disposed between the first lens group and the reduced side and has a positive refractive power. The second lens group includes at least seven lenses.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 16, 2016
    Applicant: Young Optics Inc.
    Inventors: Ching-Sheng Chang, Yen-Te Lee, Kuo-Chuan Wang
  • Patent number: 9366722
    Abstract: A method and apparatus for performing de-skew control are provided, where the method is applied to an electronic device. The method includes the steps of: performing a symbol detection at a plurality of lanes of the electronic device, respectively, to determine locations of a specific symbol at the plurality of lanes, respectively; according to the locations of the specific symbol at the plurality of lanes, selectively rearranging decoded data in the plurality of lanes to generate a plurality of sets of de-skewed data respectively corresponding to the plurality of lanes; and by buffering the plurality of sets of de-skewed data, selectively delaying output of the plurality of sets of de-skewed data to control beginning of the plurality of sets of de-skewed data to be simultaneously output.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: June 14, 2016
    Assignee: Faraday Technology Corp.
    Inventors: Ching-Sheng Chang, Yuan-Min Hu
  • Publication number: 20150293175
    Abstract: A method and apparatus for performing de-skew control are provided, where the method is applied to an electronic device. The method includes the steps of: performing a symbol detection at a plurality of lanes of the electronic device, respectively, to determine locations of a specific symbol at the plurality of lanes, respectively; according to the locations of the specific symbol at the plurality of lanes, selectively rearranging decoded data in the plurality of lanes to generate a plurality of sets of de-skewed data respectively corresponding to the plurality of lanes; and by buffering the plurality of sets of de-skewed data, selectively delaying output of the plurality of sets of de-skewed data to control beginning of the plurality of sets of de-skewed data to be simultaneously output.
    Type: Application
    Filed: August 14, 2014
    Publication date: October 15, 2015
    Inventors: Ching-Sheng Chang, Yuan-Min Hu
  • Patent number: 7889504
    Abstract: A portable electronic device includes: a printed circuit board having opposite first and second surfaces and provided with at least one electronic component, the first surface being provided with at least one conductive pad that is electrically coupled to the electronic component; and a flexible circuit board having a main part stacked on the second surface of the printed circuit board, and an extension part extending and folded from the main part and stacked on the first surface of the printed circuit board. The extension part is provided with at least one conductive bump thereon. An outer surface of the main part is provided with at least one input key that is electrically coupled to the conductive bump. The conductive pad is bonded to the conductive bump.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 15, 2011
    Assignee: Universal Scientific Industrial Co., Ltd.
    Inventors: Wen-Jen Liau, Jin-Ching Guo, Ching-Sheng Chang, Hsin-Shun Chen
  • Publication number: 20090250504
    Abstract: A solder applying apparatus includes a tray body having a base portion and a surrounding portion extending from a periphery of the base portion, cooperating with the base portion to define a solder-accommodating space therebetween for receiving a solder material therein, and having a top end distal from the base portion. The base portion has an inner wall confining a bottom side of the solder-accommodating space. The inner wall of the base portion is divided into a plurality of parallel planar regions. Each of the planar regions cooperates with an adjacent one of the planar regions to define a step therebetween so as to permit the planar regions to have different depths relative to the top end of the surrounding portion.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 8, 2009
    Applicant: Universal Scientific Industrial Co., Ltd.
    Inventors: Ching-Sheng Chang, Jin-Chin Guo, Hsin-Shun Chen
  • Publication number: 20090116206
    Abstract: A portable electronic device includes: a printed circuit board having opposite first and second surfaces and provided with at least one electronic component, the first surface being provided with at least one conductive pad that is electrically coupled to the electronic component; and a flexible circuit board having a main part stacked on the second surface of the printed circuit board, and an extension part extending and folded from the main part and stacked on the first surface of the printed circuit board. The extension part is provided with at least one conductive bump thereon. An outer surface of the main part is provided with at least one input key that is electrically coupled to the conductive bump. The conductive pad is bonded to the conductive bump.
    Type: Application
    Filed: December 20, 2007
    Publication date: May 7, 2009
    Applicant: UNIVERSAL SCIENTIFIC INDUSTRIAL CO., LTD.
    Inventors: Wen-Jen LIAU, Jin-Ching GUO, Ching-Sheng CHANG, Hsin-Shun CHEN
  • Publication number: 20080305828
    Abstract: A dual-focus lens includes a stop and at least two lenses. One of the lenses is relatively close to the stop, and formed with a first transmission area and a second transmission area. When the at least two lenses are fixed without shifting any lens, an image beam reflected from a first object distance can pass through the first transmission area to form a clear optical image on an image formation area located at a fixed position, and an image beam reflected from a second object distance can pass through the second transmission area to form a clear optical image on the same image formation area, so as to achieve a purpose of providing double focuses without any active elements or changing the image formation distance.
    Type: Application
    Filed: August 31, 2007
    Publication date: December 11, 2008
    Inventors: Ching Sheng Chang, Wei-Jie Peng, Chih Wei Weng
  • Publication number: 20080285968
    Abstract: The present invention discloses a compact camera module (CCM) package structure that allows a lens module to adjoin directly on the CCM module to prevent height error that occurs when CCM module is soldered to the substrate from affecting the imaging performance of chip module. The CCM package structure comprises a substrate, a sensor chip module and a lens module. The lens module can encase and cover the sensor chip module, and adjoin the periphery of a light transmitting plane of the sensor chip module through a concave step disposed in the lens module so that the lens module can synchronously maintain the same horizontal angle and height as the light-transmitting plane of sensor chip module, thereby reducing error occurred in the manufacturing process and allowing the lens module and the sensor chip module to produce better focusing and image quality.
    Type: Application
    Filed: May 14, 2007
    Publication date: November 20, 2008
    Inventors: Ching Sheng Chang, Hsiung Yu Tsai
  • Patent number: 7417812
    Abstract: The present invention is related to a microminiature lens module and a lens device with the microminiature lens module. The microminiature lens module is applied in the lens device in order to decrease the entire outer diameter of the lens device. The microminiature lens module comprises a containing base and a lens set, wherein the containing base has a through hole, and an inner thread is located on a partial inner wall of the through hole. A radius with the inner thread of the through hole is smaller than a radius without the inner thread of the through hole. The lens set is female-connected to the through hole. An outer thread is on an outer rim of the lens set where relative to the inner thread, and the outer thread collocates the inner thread. A radius with the outer thread of the lens set is smaller than a radius without the outer thread of the lens set.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: August 26, 2008
    Assignee: PowerGate Optical Inc.
    Inventor: Ching Sheng Chang
  • Publication number: 20070217039
    Abstract: The present invention is related to a microminiature lens module and a lens device with the microminiature lens module. The microminiature lens module is applied in the lens device in order to decrease the entire outer diameter of the lens device. The microminiature lens module comprises a containing base and a lens set, wherein the containing base has a through hole, and an inner thread is located on a partial inner wall of the through hole. A radius with the inner thread of the through hole is smaller than a radius without the inner thread of the through hole. The lens set is female-connected to the through hole. An outer thread is on an outer rim of the lens set where relative to the inner thread, and the outer thread collocates the inner thread. A radius with the outer thread of the lens set is smaller than a radius without the outer thread of the lens set.
    Type: Application
    Filed: July 28, 2006
    Publication date: September 20, 2007
    Inventor: Ching Sheng Chang