Patents by Inventor Wen Hsiung Chang

Wen Hsiung 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: 11961762
    Abstract: A method includes forming a first conductive feature, depositing a passivation layer on a sidewall and a top surface of the first conductive feature, etching the passivation layer to reveal the first conductive feature, and recessing a first top surface of the passivation layer to form a step. The step comprises a second top surface of the passivation layer. The method further includes forming a planarization layer on the passivation layer, and forming a second conductive feature extending into the passivation layer to contact the first conductive feature.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: April 16, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ming-Da Cheng, Tzy-Kuang Lee, Song-Bor Lee, Wen-Hsiung Lu, Po-Hao Tsai, Wen-Che Chang
  • Patent number: 11522000
    Abstract: A semiconductor package structure including a sensor die, a substrate, a light blocking layer, a circuit layer, a dam structure and an underfill is provided. The sensor die has a sensing surface. The sensing surface includes an image sensing area and a plurality of conductive bumps. The substrate is disposed on the sensing surface. The light blocking layer is located between the substrate and the sensor die. The circuit layer is disposed on the light blocking layer. The sensor die is electrically connected to the circuit layer by the conductive bumps. The dam structure is disposed on the substrate and surrounds the image sensing area. Opposite ends of the dam structure directly contact the sensor die and the light blocking layer. The underfill is disposed between the dam structure and the conductive bumps.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: December 6, 2022
    Assignee: Powertech Technology Inc.
    Inventors: Hung-Hsin Hsu, Wen-Hsiung Chang
  • Patent number: 11309296
    Abstract: A semiconductor package including a plurality of first chips, a plurality of through silicon vias, a least one insulator, a first circuit structure and a first encapsulant is provided. The first chip electrically connected to the through silicon vias includes a sensing area on a first active surface, a first back surface and a plurality of through holes extending from the first back surface towards the first active surface. The insulator is disposed on the first active surfaces of the first chips. The first circuit structure disposed on the first back surfaces of the first chips and electrically connected to the through silicon vias. The first encapsulant, laterally encapsulating the first chips.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: April 19, 2022
    Assignee: Powertech Technology Inc.
    Inventors: Nan-Chun Lin, Hung-Hsin Hsu, Shang-Yu Chang Chien, Wen-Hsiung Chang
  • Publication number: 20210098517
    Abstract: A semiconductor package structure including a sensor die, a substrate, a light blocking layer, a circuit layer, a dam structure and an underfill is provided. The sensor die has a sensing surface. The sensing surface includes an image sensing area and a plurality of conductive bumps. The substrate is disposed on the sensing surface. The light blocking layer is located between the substrate and the sensor die. The circuit layer is disposed on the light blocking layer. The sensor die is electrically connected to the circuit layer by the conductive bumps. The dam structure is disposed on the substrate and surrounds the image sensing area. Opposite ends of the dam structure directly contact the sensor die and the light blocking layer. The underfill is disposed between the dam structure and the conductive bumps.
    Type: Application
    Filed: April 22, 2020
    Publication date: April 1, 2021
    Applicant: Powertech Technology Inc.
    Inventors: Hung-Hsin Hsu, Wen-Hsiung Chang
  • Publication number: 20210098324
    Abstract: By using a photosensitive material coating or laminating on the substrate, an opening well structure with plurality of openings and pillars is formed by photolithography or mechanical processing to have patterns corresponding to the active sensor areas of the chip die so as to provide improved support on the substrate for the cover glass. The overall package structure is then reinforced without the risk of cracking the substrate.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 1, 2021
    Inventors: Hung-Hsin Hsu, Wen-Hsiung Chang
  • Publication number: 20200091126
    Abstract: A semiconductor package including a plurality of first chips, a plurality of through silicon vias, a least one insulator, a first circuit structure and a first encapsulant is provided. The first chip electrically connected to the through silicon vias includes a sensing area on a first active surface, a first back surface and a plurality of through holes extending from the first back surface towards the first active surface. The insulator is disposed on the first active surfaces of the first chips. The first circuit structure disposed on the first back surfaces of the first chips and electrically connected to the through silicon vias. The first encapsulant, laterally encapsulating the first chips.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 19, 2020
    Applicant: Powertech Technology Inc.
    Inventors: Nan-Chun Lin, Hung-Hsin Hsu, Shang-Yu Chang Chien, Wen-Hsiung Chang
  • Patent number: 10424526
    Abstract: A chip package structure includes a redistribution layer, at least one chip, a reinforcing frame, an encapsulant and a plurality of solder balls. The redistribution layer includes a first surface and a second surface opposite to each other. The chip is disposed on the first surface and electrically connected to the redistribution layer. The reinforcing frame is disposed on the first surface and includes at least one through cavity. The chip is disposed in the through cavity and a stiffness of the reinforcing frame is greater than a stiffness of the redistribution layer. The encapsulant encapsulates the chip, the reinforcing frame and covering the first surface. The solder balls are disposed on the second surface and electrically connected to the redistribution layer.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: September 24, 2019
    Assignee: Powertech Technology Inc.
    Inventors: Chi-An Wang, Hung-Hsin Hsu, Wen-Hsiung Chang
  • Publication number: 20190096866
    Abstract: A semiconductor package including a first semiconductor chip, a plurality of first conductors, a first conductive pattern electrically connected to the first conductors, a second semiconductor chip disposed on the first semiconductor chip, and an encapsulant on the first conductive pattern and laterally encapsulating the second semiconductor chip. The first semiconductor chip electrically connected to the first conductors includes a sensing area on a first active surface, a first back surface and a plurality of through holes extending form the first back surface towards the first active surface. The second semiconductor chip including a second active surface facing towards the first back surface electrically connects the first semiconductor chip through the first conductors in the through holes and the first conductive pattern on the first back surface. A manufacturing method of a semiconductor package is also provided.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 28, 2019
    Applicant: Powertech Technology Inc.
    Inventors: Ching-Ming Hsu, Wen-Hsiung Chang, Po-Wei Yeh, Yun-Hsin Yeh
  • Patent number: 10124405
    Abstract: A manufacturing method for a metallic housing of an electronic device is provided. The method includes providing a die-casting mold including a male die and a female die; positioning an outer frame in a cavity of the female die, the outer frame including a plurality of latching portions protruding from an inner surface inwardly and a plurality of latching grooves, each latching portion including at least one receiving groove; assembling the male die to the female die; casting pressured molten metal-alloy into the cavity to form an inner structural member embedded in the outer frame, the inner structural member including a plurality of engaging portions respectively embedded in the plurality of receiving grooves, and a plurality of matching portions respectively embedded in the plurality of latching grooves; dissembling the male die from the female die; and removing the outer frame and the inner structural member from the female die.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: November 13, 2018
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Cai-Hua Wang, Yue-Jian Li, Chen-Shen Lin, Wen-Hsiung Chang, Chun-Jung Chang
  • Patent number: 10040120
    Abstract: A manufacturing method for a metallic housing of an electronic device is provided. The method includes providing a die-casting mold, including a male die and a female die engaging with the male die, the male die defining a pouring gate therein, and the female die defining a cavity therein corresponding to the pouring gate; positioning a metallic outer case in the cavity of the female die as an insert; assembling the male die to the female die to cover the cavity, thereby communicating the pouring gate with the cavity; casting pressured molten metal-alloy into the cavity via the pouring gate to form an inner structural member embedded in an inner side of the outer case; dissembling the male die from the female die to expose the cavity, and removing the outer case and the inner structural member from the female die.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 7, 2018
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Cai-Hua Wang, Yue-Jian Li, Chen-Shen Lin, Wen-Hsiung Chang, Chun-Jung Chang
  • Publication number: 20180141114
    Abstract: A metallic article can include a cast metallic body and at least one metallic element. The cast metallic body defines at least one first space. The least one metallic element is received in the cast metallic body and seamless with the cast metallic body. The at least one metallic element is exposed from the at least one first space. A heat conductivity of the cast metallic body is lower than that of the at least one metallic element. The present disclosure further provides a method for manufacturing metallic article.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 24, 2018
    Inventors: JUN-JUN YANG, CAI-HUA WANG, YUE-JIAN LI, CHEN-SHEN LIN, WEN-HSIUNG CHANG, CHUN-JUNG CHANG
  • Patent number: 9972554
    Abstract: A wafer level chip scale package (WLCSP) has a device chip, a carrier chip, an offset pad, a conductive spacing bump and a through hole via (THV). The device chip is attached to the carrier chip. The offset pad is disposed on a first surface of the device chip. The conductive spacing bump is formed on the offset pad. The through hole via includes a through hole and a hole metal layer. The through hole penetrates through the carrier chip and the device chip, and the hole metal layer is formed in the through hole and in contact with the offset pad.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: May 15, 2018
    Assignee: POWERTECH TECHNOLOGY INC.
    Inventors: Li-Chih Fang, Chia-Chang Chang, Hung-Hsin Hsu, Wen-Hsiung Chang, Kee-Wei Chung, Chia-Wen Lien
  • Publication number: 20180114734
    Abstract: A chip package structure includes a redistribution layer, at least one chip, a reinforcing frame, an encapsulant and a plurality of solder balls. The redistribution layer includes a first surface and a second surface opposite to each other. The chip is disposed on the first surface and electrically connected to the redistribution layer. The reinforcing frame is disposed on the first surface and includes at least one through cavity. The chip is disposed in the through cavity and a stiffness of the reinforcing frame is greater than a stiffness of the redistribution layer. The encapsulant encapsulates the chip, the reinforcing frame and covering the first surface. The solder balls are disposed on the second surface and electrically connected to the redistribution layer.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 26, 2018
    Applicant: Powertech Technology Inc.
    Inventors: Chi-An Wang, Hung-Hsin Hsu, Wen-Hsiung Chang
  • Patent number: 9901979
    Abstract: A metallic article can include a cast metallic body and at least one metallic element. The cast metallic body defines at least one first space. The least one metallic element is received in the cast metallic body and seamless with the cast metallic body. The at least one metallic element is exposed from the at least one first space. A heat conductivity of the cast metallic body is lower than that of the at least one metallic element. The present disclosure further provides a method for manufacturing metallic article.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: February 27, 2018
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun-Jun Yang, Cai-Hua Wang, Yue-Jian Li, Chen-Shen Lin, Wen-Hsiung Chang, Chun-Jung Chang
  • Publication number: 20170256471
    Abstract: A wafer level chip scale package (WLCSP) has a device chip, a carrier chip, an offset pad, a conductive spacing bump and a through hole via (THV). The device chip is attached to the carrier chip. The offset pad is disposed on a first surface of the device chip. The conductive spacing bump is formed on the offset pad. The through hole via includes a through hole and a hole metal layer. The through hole penetrates through the carrier chip and the device chip, and the hole metal layer is formed in the through hole and in contact with the offset pad.
    Type: Application
    Filed: February 15, 2017
    Publication date: September 7, 2017
    Inventors: Li-Chih Fang, Chia-Chang Chang, Hung-Hsin Hsu, Wen-Hsiung Chang, Kee-Wei Chung, Chia-Wen Lien
  • Publication number: 20160309903
    Abstract: A folding stool includes a pair of table surface sections, a pair of leg sections, and a pivot member. The pair of table surface sections is connected to each other by the pivot member, and the pair of leg sections supports the pair of table surface sections. Each leg section includes a bottom and a top, and the top resists against the table surface section. The folding stool is made of aluminum and magnesium alloy, further includes a plurality of first connecting members and a plurality of second connecting members. Each table surface section includes a first connecting hole and a second connecting hole, and each leg section includes a third connecting hole and a fourth connecting hole. The first connecting member is connected between first connecting hole and the third connecting hole, and the second connecting member is connected between second connecting hole and the fourth connecting hole.
    Type: Application
    Filed: May 19, 2015
    Publication date: October 27, 2016
    Inventors: BO HUANG, JUN-XIAO LIU, HONG-ZHAO QI, CAI-HUA WANG, YUE-JIAN LI, CHEN-SHEN LIN, WEN-HSIUNG CHANG, CHUN-JUNG CHANG
  • Publication number: 20160263650
    Abstract: A manufacturing method for a metallic housing of an electronic device is provided. The method includes providing a die-casting mold including a male die and a female die; positioning an outer frame in a cavity of the female die, the outer frame including a plurality of latching portions protruding from an inner surface inwardly and a plurality of latching grooves, each latching portion including at least one receiving groove; assembling the male die to the female die; casting pressured molten metal-alloy into the cavity to form an inner structural member embedded in the outer frame, the inner structural member including a plurality of engaging portions respectively embedded in the plurality of receiving grooves, and a plurality of matching portions respectively embedded in the plurality of latching grooves; dissembling the male die from the female die; and removing the outer frame and the inner structural member from the female die.
    Type: Application
    Filed: May 23, 2016
    Publication date: September 15, 2016
    Inventors: CAI-HUA WANG, YUE-JIAN LI, CHEN-SHEN LIN, WEN-HSIUNG CHANG, CHUN-JUNG CHANG
  • Publication number: 20160207104
    Abstract: A manufacturing method for a metallic housing of an electronic device is provided. The method includes providing a die-casting mold, including a male die and a female die engaging with the male die, the male die defining a pouring gate therein, and the female die defining a cavity therein corresponding to the pouring gate; positioning a metallic outer case in the cavity of the female die as an insert; assembling the male die to the female die to cover the cavity, thereby communicating the pouring gate with the cavity; casting pressured molten metal-alloy into the cavity via the pouring gate to form an inner structural member embedded in an inner side of the outer case; dissembling the male die from the female die to expose the cavity, and removing the outer case and the inner structural member from the female die.
    Type: Application
    Filed: March 29, 2016
    Publication date: July 21, 2016
    Inventors: CAI-HUA WANG, YUE-JIAN LI, CHEN-SHEN LIN, WEN-HSIUNG CHANG, CHUN-JUNG CHANG
  • Patent number: 9373391
    Abstract: A resistive memory apparatus is provided. The resistive memory apparatus includes a plurality of memory cell pairs, and each of the memory cell pairs includes an active area, first and second word lines, a source line, first and second resistors and first and second bit lines. The active area is formed on a substrate, and the first and second word lines are formed on the substrate, and intersected with the active area. The source line is formed on the substrate and coupled to the active area. The first and second resistors are disposed on the substrate, and respectively coupled to the active area. The first and second bit lines are formed on the first and second resistors and coupled to the first and second resistors. The first and second bit lines are extended along a first direction which is substantially parallel to the first and second word lines.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: June 21, 2016
    Assignee: Winbond Electronics Corp.
    Inventors: Frederick Chen, Wen-Hsiung Chang, Chien-Min Wu
  • Patent number: 9370823
    Abstract: A metallic housing of an electronic device, includes a metallic outer frame and an inner structural member. The metallic outer frame comprises a plurality of latching portions protruding, and a plurality of latching grooves. The inner structural member is made from metal-alloy and embedded in the outer frame by die-casting. The inner structural member comprises a peripheral sidewall, a plurality of engaging portions, and a plurality of matching portions. The plurality of engaging portions and the plurality of matching portions protrude from the peripheral sidewall outwardly. Each latching portion comprises at least two parallel latching ribs, and forms a receiving groove between two adjacent latching ribs. The plurality of engaging portions is respectively embedded in the plurality of receiving grooves, and the plurality of matching portions is respectively embedded in the plurality of latching grooves. The present disclosure further provides a manufacturing method for the metallic housing.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 21, 2016
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Cai-Hua Wang, Yue-Jian Li, Chen-Shen Lin, Wen-Hsiung Chang, Chun-Jung Chang