Patents by Inventor Chun-Yi Chang

Chun-Yi 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: 20090144969
    Abstract: A removing apparatus, for removing an electrical connector from a PCB, comprises a base, a pulling member, a pair of opposite clipping members, a lower supporting member and at least one resilient member. The base includes a main body having a top surface. The pulling member connects to the base to be operated to bring the base up and down. The two clipping members pivotally mount to the base, and each of the clipping members has a fixing portion and a latch extending downwardly from the fixing portion for hooking the electrical connector. The lower supporting member mounts below the base and includes a plate substantially paralleling to the main body of the base. The resilient member located between the base and the lower supporting member so as the base can move downwardly relative to the supporting base. When the base moves downwardly, the latch of the clipping member can engage with the electrical connector and pick it up from the PCB when the base moves back.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 11, 2009
    Inventors: Chun-Yi Chang, Chun-Hung Liu
  • Patent number: 7530732
    Abstract: An apparatus for making thermal interface material includes a container and a stirrer. The container has a cylindrical inner wall and a bottom. The stirrer includes a rotor and a motor for driving the rotation of the rotor. The rotor includes a distal end having a cylindrical side surface separated by predetermined distance from the cylindrical inner wall.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: May 12, 2009
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chun-Yi Chang
  • Patent number: 7527507
    Abstract: An electrical connector assembly (1) includes an electrical connector including an insulative housing (2) having opposite upper and lower surfaces, and a number of contacts received in the insulative housing and partially exposed beyond said upper and lower surfaces of the insulative housing to form upper and lower exposed sections, an upper cover (3) assembled to the upper surface of the insulative housing, and a lower cover (4) assembled to the lower surface of the insulative housing. The contacts are wholly received between the upper and lower covers without exposed outside.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: May 5, 2009
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Fang-Jun Liao, Chun-Yi Chang
  • Patent number: 7517256
    Abstract: An electrical connector includes a frame including at least two supporting arms configuring at least one mounting area, at least one housing unit assembled to the supporting arms and located with the at least one mounting area. An inter-aligning arrangement is arranged between the supporting arms and the at least one housing so as to ensure the at least one housing unit is properly attached to the frame. The inter-aligning arrangement includes at least one groove located at one of the supporting arm and the housing unit, and at least one projection located at the other.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: April 14, 2009
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Chun-Yi Chang
  • Patent number: 7503781
    Abstract: A socket connector assembly (10) comprises an insulative housing (10) comprising a bottom conductive section (201) defining a plurality of contact-receiving slots and four sidewalls (202) extending upwardly from edges of the conductive section, and a pick-up cap (30) assembled to the insulative housing and comprising a smooth top surface (301) adapted for being sucked by a vacuum device and opposite contacting surface (302). At least one of the sidewalls of the insulative housing and the pick-up cap defines at least a pair of aligning posts (303) at opposite corners thereof, and at least one of the pick-up cap and the sidewalls of the insulative housing defines a pair of aligning slots (203) at opposite corners thereof to interferentially receive the aligning posts to assemble the pick-up cap to the insulative housing.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: March 17, 2009
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Chun-Yi Chang
  • Publication number: 20090047805
    Abstract: A socket, for electrically connecting an IC package and a printed circuit board, comprises an insulative housing and a plurality of contacts received in the insulative housing. The insulative housing has an opening in a center thereof, a solder pad is received in the opening and has a soldering board which is soldered to the printed circuit board to enhance a mechanical connection between the socket and the printed circuit board.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 19, 2009
    Inventors: Fang-Chu Liao, Chun-Yi Chang
  • Publication number: 20090035995
    Abstract: An electrical connector includes an insulative housing having a number of contact receiving passageways and a number of contacts received in the contact receiving passageways of the housing. Each of the contacts includes a main body and a spring contact arm extending upwardly from the main body. The contacts disposed in the housing are divided into a first group in a first area and a second group in a second area of the housing. The spring contact arms of the first and second group extend in different directions and opposite to each other. The insulative housing defines a plurality of recesses between the first area and second area.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 5, 2009
    Inventors: Chun-Yi Chang, Fang-Chu Liao
  • Patent number: 7445379
    Abstract: A device includes a measuring assembly, a fluid pressure assembly, and a manometer. The measuring assembly includes a heating member defining a first contact surface, a cooling member defining a second contact surface facing the first contact surface, a platform, and a sleeve. The sleeve is configured far hermetically adjoining the heating and cooling members and allowing movement of the heating and cooling members relative to each other. The sleeve and the first and second contact surfaces form a cavity for receiving fluid material to be measured. The platform is configured for controlling the relative movement of the heating and cooling members to adjust the length of the cavity. The fluid pressure assembly is configured for compressing the fluid material into the cavity. The manometer is disposed on the sleeve or the fluid pressure assembly and is configured for detecting a fluid pressure of the fluid material in the cavity.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: November 4, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chun-Yi Chang
  • Patent number: 7435100
    Abstract: An connector (1) includes an insulative housing (2), and a multiplicity of conductive contacts (3) received in the housing. The housing comprises a mating surface (20) and a mounting surface (21) opposite to the mating surface. The housing defines a plurality of passageways (23) extending vertically therethrough to receive corresponding contacts therein. A seriate stand-offs (24) extends from the two opposite lateral sides of the adjacent passageways on the mounting surface.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: October 14, 2008
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Chun-Yi Chang, Fang-Jun Liao
  • Patent number: 7436673
    Abstract: A fixing structure of heat conduction pad is used to uniformly press two heat conduction pads on the two heat generating electronic components on a circuit board respectively. The fixing structure includes a fixing member and an elastic member. The two ends of the elastic member are a fastening portion and a fixing portion respectively. The middle part of the elastic member is a pressing portion. In addition, a suspension arm is extended from the fixing portion. When the fastening portion is to be fasten on the circuit board and the fixing portion is to be fixed on the circuit board by the fixing member, the pressing portion presses one of the heat conduction pad on one of the heat generating electronic component, and the suspension arm presses the other heat conduction pad on the other heat generating electronic component.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: October 14, 2008
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Jui-Chan Fan, Chun-Yi Chang, Chun-Lung Lin, Chih-Kai Yang
  • Publication number: 20080242138
    Abstract: A socket connector assembly (10) comprises an insulative housing (10) comprising a bottom conductive section (201) defining a plurality of contact-receiving slots and four sidewalls (202) extending upwardly from edges of the conductive section, and a pick-up cap (30) assembled to the insulative housing and comprising a smooth top surface (301) adapted for being sucked by a vacuum device and opposite contacting surface (302). At least one of the sidewalls of the insulative housing and the pick-up cap defines at least a pair of aligning posts (303) at opposite corners thereof, and at least one of the pick-up cap and the sidewalls of the insulative housing defines a pair of aligning slots (203) at opposite corners thereof to interferentially receive the aligning posts to assemble the pick-up cap to the insulative housing.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 2, 2008
    Inventor: Chun-Yi Chang
  • Publication number: 20080233788
    Abstract: An IC socket connector comprises a base and perimeter walls with corresponding inner sidewalls and outer sidewalls to form an inner cavity therebetween for receiving an IC package. An inner sidewall of the perimeter walls has a push arm at least which has an interfacing part between an inclined lead-in surface and a flat surface at the terminal end of the push arm. The distance from the interfacing part to the contact area is larger than the one from the corresponding inner sidewall to the contact area.
    Type: Application
    Filed: March 24, 2008
    Publication date: September 25, 2008
    Inventors: Chun-Yi Chang, Fang-Chu Liao
  • Publication number: 20080227309
    Abstract: A land grid array (LGA) connector, for electrically connecting an IC (Integrated Circuit) package to a printed circuit board, comprises a retaining frame, a plurality of sections mounted on the retaining frame and a plurality of contacts received in the sections. Each contact having a contacting portion extending beyond the top surface of the section to contact with the IC package, and the contacting portions of the contacts received in a same section have two opposed extending direction to evenly and elastically support the IC package when the IC package is pressed toward the contacts.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 18, 2008
    Inventors: Fang-Chu Liao, Shuo-Hsiu Hsu, Chun-Yi Chang
  • Publication number: 20080220632
    Abstract: The present invention provides a large dimension electrical connector configured by modular unit sections. Specially, each modular unit has a plurality of contacts received therein and includes a plurality of edges that each has a plurality of flanges. The flange of one particular section of the modular unit interconnects with a flange of an adjacent one of the modular unit to form the large dimension electrical connector. In addition, the flanges of two adjacent modular unit connectors are disposed to overlap in a vertical direction and thickness of the two flanges after mated together is equal to the thickness of the large dimension electrical connector.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Inventor: Chun-Yi Chang
  • Publication number: 20080220627
    Abstract: An electrical connector assembly comprises an insulative housing having a base, with a mating interface, and a mounting interface corresponding to the mating face. The base has peripheral walls extending upwardly from the mating face. A plurality of contacts arranged in the base of the insulative housing. At least a pair of cantilevered push fingers formed on two adjacent walls for pushing the integrated circuit module toward opposing walls. At least a support device formed on the bottom of the push finger.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 11, 2008
    Inventors: Fang-Chu Liao, Chun-Yi Chang
  • Publication number: 20080211615
    Abstract: An inverter transformer includes a coil unit and a transformer core unit. The coil unit includes a bobbin formed with a core-receiving compartment, and a plurality of windings including two primary windings and two secondary windings wound around the bobbin. The secondary windings are disposed adjacent to each other and are coupled electromagnetically and respectively to the primary windings. The transformer core unit includes an internal core part that extends into the core-receiving compartment of the bobbin, and an external core part that forms a magnetic circuit path with the internal core part. The external core part includes a main segment extending externally at one side of the bobbin and a protrusion segment extending from the main segment toward a portion of the bobbin that is disposed between the secondary windings.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 4, 2008
    Applicants: Greatchip Technology Co., Ltd., Yao Sheng Electronic Co., Ltd.
    Inventors: Masakazu Ushijima, Chun-Yi Chang
  • Publication number: 20080153355
    Abstract: An electrical connector assembly (1) includes an electrical connector including an insulative housing (2) having opposite upper and lower surfaces, and a number of contacts received in the insulative housing and partially exposed beyond said upper and lower surfaces of the insulative housing to form upper and lower exposed sections, an upper cover (3) assembled to the upper surface of the insulative housing, and a lower cover (4) assembled to the lower surface of the insulative housing. The contacts are wholly received between the upper and lower covers without exposed outside.
    Type: Application
    Filed: December 26, 2007
    Publication date: June 26, 2008
    Inventors: Fang-Jun Liao, Chun-Yi Chang
  • Publication number: 20080146045
    Abstract: An electrical connector assembly (1) comprises an insulative housing (2) having opposite upper and lower surfaces, a plurality of contacts received in the insulative housing, and a protecting member (4) comprising opposite upper and lower plates (42, 44) parallel to each other and at least one connecting section (431, 432, 433) connecting the upper and lower plates. The upper and lower plates define a receiving space (40) therebetween and an opening (400) communicating with the receiving space and outside. The insulative housing is slidrably inserted into the receiving space of the protecting member from the opening and received in the receiving space of the protecting member with the upper and lower surfaces thereof are covered by the upper and lower plates of the protecting member.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 19, 2008
    Inventor: Chun-Yi Chang
  • Publication number: 20080130240
    Abstract: A fixing structure of heat conduction pad is used to uniformly press two heat conduction pads on the two heat generating electronic components on a circuit board respectively. The fixing structure includes a fixing member and an elastic member. The two ends of the elastic member are a fastening portion and a fixing portion respectively. The middle part of the elastic member is a pressing portion. In addition, a suspension arm is extended from the fixing portion. When the fastening portion is to be fasten on the circuit board and the fixing portion is to be fixed on the circuit board by the fixing member, the pressing portion presses one of the heat conduction pad on one of the heat generating electronic component, and the suspension arm presses the other heat conduction pad on the other heat generating electronic component.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Applicant: INVENTEC CORPORATION
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Jui-Chan Fan, Chun-Yi Chang, Chun-Lung Lin, Chih-Kai Yang
  • Patent number: 7381119
    Abstract: A fixture for grinding machines includes a first base (10) and a second base (20). The first base has a first surface (12) which defines a first holding groove (11). The first base defines a plurality of first suction holes (13) on the first surface. The second base has a second surface (22) which defines a second holding groove (21) corresponding to the first holding groove. The second base defines a plurality of second suction holes (23) on the second surface.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: June 3, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chun-Yi Chang