Patents by Inventor Hao-Yun Ma

Hao-Yun Ma 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: 7189094
    Abstract: An LGA connector (1) includes an insulative housing (2), a stiffener (3) defined around the housing, a clip (4) pivotably engaged on one end of the stiffener, and a lever (5) engaged on an opposite end of the stiffener for fastening the clip onto the housing. The stiffener includes a bottom plate (31) and a plurality of side walls (32) extending from the bottom plate, and the housing includes a plurality of side surfaces aligned with said side walls, each of the side plates (42) defining a pair of slant sides in the free end. The clip includes a pressing plate (41) and a pair of side plates (42) extending from the pressing plate (41). A slot (34) is formed in corresponding position of the bottom plate (31) of the stiffener for accepting the side plate (42) of the clip (4) partly with the slant sides abutting against the inner side of the slot (34) when the clip (4) is rotated to a horizontal closed position.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: March 13, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Patent number: 7189093
    Abstract: A socket connector includes a plurality of conductive terminals received in an insulative housing, a stiffener surrounding the housing, a load plate pivotably assembled with one end of the stiffener and a load lever pivotably attached to the other end of the stiffener. The housing has a bottom wall facing the PCB. The bottom wall defines a plurality of semi-cylindrical protrusions. The stiffener body defines a plurality of semi-circular slits corresponding to the semi-cylindrical protrusions. By virtue of the mesh of the semi-cylindrical protrusions and the semi-circular slits, the stiffener body is assembled with the housing completely.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: March 13, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Publication number: 20070054533
    Abstract: An LGA connector (1) comprises a housing (11) for receiving a number of contacts (12), a stiffener (13) partly covering and reinforcing the housing. The stiffener comprises a pair of lateral sides (130), a front end (131) defining a chamber (136) with a U-shaped cross-section and a rear end (132), and a central cavity (133) disposed therebetween. The front end defines a pair of openings (135) at two opposite ends thereof to make the plating liquor enter into the chamber uniformly.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 8, 2007
    Inventor: Hao-Yun Ma
  • Patent number: 7179109
    Abstract: An LGA connector (1) comprises a housing (11) for receiving a number of contacts (12), a stiffener (13) partly covering and reinforcing the housing. The stiffener comprises a pair of lateral sides (130), a front end (131) defining a chamber (136) with a U-shaped cross-section and a rear end (132), and a central cavity (133) disposed therebetween. The front end defines a pair of openings (135) at two opposite ends thereof to make the plating liquor enter into the chamber uniformly.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: February 20, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd
    Inventor: Hao-Yun Ma
  • Patent number: 7179092
    Abstract: An LGA connector (1) includes an insulative housing (2), a stiffener (3) defined around the housing, a clip (4) pivotably engaged on one end of the stiffener, and a lever (5) engaged on an opposite end of the stiffener for fastening the clip onto the housing. The stiffener includes a bottom plate (31) and a plurality of side walls (32) extending from the bottom plate, and the housing defines two raised lower surfaces (210) in two opposite ends thereof. Said ends is corresponding to the ends of the stiffener that engages lever and clip respectively, and each lower surface and the bottom plate defining a gap therebetween. Thus, even if two ends of the stiffener bend, the gaps will avoid the housing from distorting alone with the stiffener.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: February 20, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Publication number: 20070032118
    Abstract: A socket connector (10) using for electrically connecting a chip module (5) to a printed circuit board includes a housing (11), a number of terminals (12) received in corresponding passageways of the housing (11), a frame (13) mounted around the housing (11), a clip (14) received pivotably in an end of the frame (13) and a lever (15) connecting to an opposite end of the frame (13). The lever (15) being configured as pole-shaped form comprising a base portion (152) and a sleeve for wrapping the base portion (153). The sleeve (153) reduces friction produced between the lever (15) and the clip (14).
    Type: Application
    Filed: August 8, 2006
    Publication date: February 8, 2007
    Inventors: Nick Lin, Hao-Yun Ma, Chia-Wei Fan
  • Publication number: 20070020963
    Abstract: A land grid array (LGA) connector (1) according to an embodiment of the present invention includes an insulative housing (2), a stiffener (3) coupled to the housing, and a plurality of ribs (23) projecting from a periphery edge of the housing. The stiffener defines an opening (31) for surrounding the housing. Each of the ribs has a base defining a mating surface (2321) and a mounting surface (2312). The stiffener is coupled to the housing by the rib mating surface abutting against a wall face (32) of the stiffener opening, and the rib mounting surface resting on a peripheral edge (320) of the stiffener that defines the opening. As such, a reliable coupling between the stiffener and the housing is achieved, thereby having no possibility of releasing the housing from the stiffener by an external, improper force.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 25, 2007
    Inventors: Hao-Yun Ma, Yu-Chen Chen
  • Patent number: 7165988
    Abstract: A pick up cap for an LGA connector, the connector has a housing which defines a multiplicity of passageways, a plurality of electrical contacts received in the passageways, a metal clip and a pick up cap. The clip defines a rectangular window in the middle thereof. Around the window there are two opposite sidepieces and two opposite urging sides. The pick up cap is detachably mounted on the clip. The pick up cap has a rectangular planar body which defines two opposite end portions and two opposite side portions. Each of the two side portions has a waist. When the pick up cap is mounted on the clip, two end portions engage with two opposite sidepieces, two opposite sidepieces and two opposite end portions cooperatively define two rifts therebetween.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: January 23, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Hao-Yun Ma, Fang-Jwu Liao
  • Patent number: 7163406
    Abstract: An electrical connector assembly (1) includes an insulative housing (20) receiving conductive terminals (26) therein, an integrated circuit package (30) mounted on the housing, a stiffener (40) surrounding the housing, a load plate (50) pivotally assembled with a first end (401) of the stiffener, and a load lever (60) assembled with a second end (402) of the stiffener. The housing defines at least one cut (241) in a side wall thereof, and the IC package defines at least one protrusion (302). After the IC package is mounted on the housing, the at least one protrusion is located in the at least one cut.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: January 16, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Patent number: 7160128
    Abstract: An LGA connector assembly (1) includes an insulative housing (10), a plurality of terminals (12) received in the housing, and a metal clip (40) mounted on the housing. The clip is disposed on the housing to press an LGA chip upon the terminals and has two opposite slant sides (42). A first pressing portion (421) is bent to the housing in a middle portion thereof, and a second pressing portion (422) with a cantilever configuration extending from one end of the first pressing portion. A clasping portion (423) is defined at a distal end of the second pressing portion. When an LGA chip is disposed on the housing, the first pressing portion and the clasping portion can press the LGA chip onto the terminals to prevent the LGA chip moving upwardly relative to the housing, thereby ensuring the reliably electrical connection between the LGA chip and the connector assembly.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: January 9, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Patent number: 7160130
    Abstract: An LGA socket (10) includes a socket body (30) having a number of terminals (40), a stiffener (50) attached to the socket body, and a load plate (60) and a load lever (70) pivotally mounted to two ends of the stiffener, respectively. The load plate defines a pair of pivotal portions (602) mounted to the stiffener to enable the load plate to rotate between an open position and a closed position. Each pivotal portion includes a bearing tongue (603) and a stopper (604). The stopper resists against the stiffener for preventing the load plate from moving relative to the socket body in a horizontal direction.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 9, 2007
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Publication number: 20070004244
    Abstract: An electrical connector (10) includes a socket body (20) and a plurality of contacts (30). The socket body defines a mating surface (202) and a number of passageways (204) extending from the mating surface. Each contact includes a base portion (300), a pair of arm sections (302) extending from two opposite lateral sides of the base portion, and a contacting end (305) forming at a free end of the arm section. The contacting end extends upwardly and outwardly with a part extending out of the mating surface. A cover (40), having a number of through-holes (402) corresponding to the passageways, is mounted on the socket body.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 4, 2007
    Inventor: Hao-Yun Ma
  • Publication number: 20060292935
    Abstract: An LGA electrical connector (10) includes an insulative body (20) of a substantially rectangular shape with a number of receiving holes (26), and a number of terminals (30) received in the respective receiving holes of the insulative body. Each of the terminals has a mounting portion (36) adapted for being soldered to a printed circuit board. The receiving hole includes a through hole (260) and a guiding hole (264) in lateral communication with the through hole. The guiding hole is provided on a surface of the insulative body, from which the associated terminal is inserted. This configuration of the terminal receiving holes, including the guiding hole, has the advantage of facilitating beam inspection of the terminal through a beam emitter (40).
    Type: Application
    Filed: June 26, 2006
    Publication date: December 28, 2006
    Inventor: Hao-Yun Ma
  • Patent number: 7153154
    Abstract: The electrical connector (1) includes a base having a number of terminals (12) thereon and a load plate (40) pivotally attached to a side of the base and locked in an opposite side of the base. The load plate (40) is stamped from a sheet of metal to form at least one pressing protrusion (43) to engagingly press an IC (60) in order to hold the IC (60) on the base. At least one pressing protrusion (43) has an outer edge (431) adjacent the IC (60) when the IC (60) is held on the base. The outer edge (431) is coined, thereby weeding out burrs formed on said outer edge (431) after the load plate (40) is stamped. As a result, the shape of the coined outer edge (431) of the pressing protrusion (43) can avoid scraping an IHS conglutinated on the IC (60) when the load plate (40) presses the IC (60), thereby to safely interconnect the IC (60) with the PCB.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: December 26, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Hao-Yun Ma, Hua Yin Huang
  • Patent number: 7150643
    Abstract: A loading system for a land grid array connector assembly includes a base plate (1), a load plate (2), and a load lever (3). The base plate includes a back wall (12) defining a pair of latching beams (124) and a blocking tab (122), and a front wall (18) defining a receiving space and retaining finger (182). The load plate is oriented adjacent the back wall of the base plate and forms a pair of curved latching plates (28) and a blocking tail (24) for cooperating with the latching beams and the blocking tab of the base plate, respectively. The load lever is oriented adjacent the front wall of the base plate and forms an actuating shaft (34) received in the receiving space of the base plate and a curved urging portion (36) engaged with the retaining finger.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: December 19, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd
    Inventor: Hao-Yun Ma
  • Patent number: 7134898
    Abstract: An LGA connector assembly (1) includes an insulative housing (10), a plurality of terminals (12) received in the housing, a metal clip (40) having a pressing portion (421) assembled on the housing. The housing defines a first sidewalls (11) and a second sidewall (15) and two other sidewalls (16, 17) opposite to the first and second sidewalls respectively. The four sidewalls each define two protrusions (18, 19) extending from a corresponding inner face thereof. One protrusion defined on the first and second sidewalls is adjacent to the pressing portion and far away from a corner connecting the first and second sidewalls, the other protrusions each define on the corresponding corners connecting the sidewalls.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: November 14, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Patent number: 7128593
    Abstract: An LGA socket includes a socket body (20) receiving a number of contacts (70), a stiffener (30) attached to the socket body, and a socket plate (40) and a load lever (50) respectively mounted to opposite ends of the stiffener. The socket plate has a connecting side (401) to connect the stiffener, a pressing side (402) to engage the load lever, and a pair of opposite lateral sides (403) respectively and integrally connected to the connecting side and the pressing side. The opposite lateral sides have a pair of clasping sections (4031) and a pair of accessorial pressing members (4032) adjacent the pressing side. The clasping sections and the accessorial pressing members can jointly press a top surface of the LGA package (60). Thus, reliable electrical connection between conductive pads on the LGA package and the corresponding contacts received in the socket body is ensured.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: October 31, 2006
    Assignee: Hon Hai Precision Ind. Co., LTD
    Inventor: Hao-Yun Ma
  • Patent number: 7121844
    Abstract: A pick-up cap (13) is provided for an LGA connector (12). The LGA connector includes a load plate (24) defining a rectangular opening (240) in a middle portion thereof and a pair of pressing portions (241) surrounding the opening. The pick-up cap defines a main body (32) and a pair of wings (34) extending from two opposite sides of the main body. A plurality of first projections (325) extends from one of the two rest sides of the main body. A resilient arm (326) extends from the other of the two rest sides of the main body. A second projection (324) is provided at two ends of the resilient arm, respectively. The pick-up cap further defines a tongue portion (35) extending from the side defining the first projections.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: October 17, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Hao-Yun Ma
  • Patent number: 7121845
    Abstract: An IC socket (1) includes an insulative housing (2) and large numbers of contacts (9) received therein. The housing defines arrayed contact receiving cavities (22) for accommodating the contacts. The cavities are arranged in array by first partition walls (24) and second partition walls (25), which are perpendicular to each other. The first partition wall is higher than the second partition wall. Each first partition wall is provided with protruding portions (240) and sunken portions (241), which are alternatively arranged.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: October 17, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Fang-Jwu Liao, Hao-Yun Ma
  • Patent number: D530260
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: October 17, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Hao-Yun Ma, Yu-Chen Chen