Abstract: An electrical connector (100) adapted for electrically connecting a chip module to a printed circuit board, includes an insulative housing (30) having a plurality of terminals received therein and a fastening device (90). The fastening device (90) comprises a stiffener (50) surrounding the insulative housing (30), a load plate (60) pivotally assembled to an end of the stiffener (50), and a knob (70) assembled on an opposed end of the stiffener (50) for locking the load plate (60). The knob (70) has a stem (702) rotationally provided with a guiding slot (704) helically defined along the stem (702) such that the tongue (610) of the load plate (60) engaged with the guiding slot (704) can be moved up and down when the knob (70) is rotated clockwise and counterclockwise.

Abstract: A socket assembly mounted on a printed circuit board comprises a socket mounted upon the printed circuit board; a metal backplane, mounted below the printed circuit board and configured with a board-like shape; and an insulative sheet. The insulative sheet is sandwiched between the printed circuit board and the metal backplane and is formed with at least one latching portion extending downwardly to latch the metal backplane. The insulative sheet further has a plurality of protruding portions extending upwardly to insert into corresponding circular holes defined on of the printed circuit board.

Abstract: An electrical connector includes a socket body with a number of contacts, a retention frame spaced from the socket body, a load plate attached to the retention frame, and a fastener. The retention frame located at a first side of the socket body and the load plate attached to at a second side of the socket body. The load plate rotates toward or away from the socket body from an open position to a closed position. The fastener is used to fasten the load plate at the closed position.

Abstract: An electrical connector (100) adapted for electrically connecting a chip module to a printed circuit board, includes an insulative housing (30) having a plurality of terminals received therein and a fastening device (90). The fastening device (90) comprises a stiffener (50) surrounding the insulative housing (30), a load plate (60) pivotally assembled to an end of the stiffener (50), and a knob (70) assembled on an opposed end of the stiffener (50) for locking the load plate (60). The knob (70) has a stem (702) rotationally provided with a guiding slot (704) helically defined along the stem (702) such that the tongue (610) of the load plate (60) engaged with the guiding slot (704) can be moved up and down when the knob (70) is rotated clockwise and counterclockwise.

Abstract: An electrical connector is for electrically connecting an electronic package with a circuit substrate. The connector includes a housing having a plurality of conductive terminals, a fastening device including a load plate for pressing the electronic package and a retaining member for securing the load plate. The load plate defines a first edge, a second edge opposite to the first edge, a third edge pivoted to the fastening device and a forth edge adjacent to the first edge and the second edge. The four edges jointly define an opening in the middle thereof with the first and second edges each having a pressing portion. Comers of the opening near the third edge extend upwardly. During the rotation of the load plate, the pressing portions will abut against the electronic package prior to the corners near the third edge, and thereby prevent the corners from abutting against the electronic package.

Abstract: An electrical connector assembly comprises a stiffener including a base with a first portion and a second portion, insulative housing, a load plate and a lever. An embossed portion is formed on the base and has substantial distance to a first end of the first portion. An insulative housing is disposed between the first portion and the second portion. A load plate is pivotally mounted on the second portion of the stiffener. A lever is pivotally assembled to the first portion of the stiffener to lock the load plate and includes a retaining portion adjacent to the embossed portion to abut against the lever when it is rotated.

Abstract: An electrical connector (100) mounted on a printed circuit board (1) includes a housing unit (2), an outer shield (4) enclosing the housing unit, and a connecting assembly (5) connecting the outer shield to the printed circuit board. The connecting assembly has a supporting member (51), a conductive member (50) extending through the supporting member and a washer (52). The supporting member has a head (501) and a body (502) surrounded by the supporting member (51). The washer locks with the body and resists against an upper surface of the printed circuit board for grounding.

Abstract: A socket, for electrically connecting an IC package and a printed circuit board, comprises a base received with a plurality of contacts, a stiffener surrounding the base and bolts mounting the socket to the printed circuit board. The stiffener has a horizontal plate, which has engaging holes by drawing, so the engaging hole has a sidewall extending beyond the horizontal plate to keep the bolt in the engaging hole of the stiffener.

Abstract: One-step screws (30) and hollow mating limiters (40) are provided for fastening a stiffener (20) of a land grid array (LGA) socket connector (1) on a circuit board. The one-step screws having a shoulder portion (301) between a top portion (302) and the thread portion (303). Each of hollow mating limiters (40) has a lead-in surface (401) on a one end of inner surface of the limiter (40). Because the smallest diameter of the limiter (40) is substantially equal to the one of the shoulder portion (301), the one-step screws (30) are able to be effectively limited within a specific range so as to avoid the possibility of losing screws during moving socket connectors.

Abstract: An electrical connector (1) for interconnecting integrated circuits (ICs) to a circuit board, includes an insulative housing (2, 3) defining a plurality of passageways extending therethrough, and a plurality of contacts received respectively in each of the passageways of the insulative housing. The insulative housing has a first base (2) adapted to connecting an IC to a circuit board and a second base (3) which is capable of cooperating with said first base when the connector is used to connecting another IC having a different size to the circuit board.