Abstract: A socket comprises a first base having a plurality of solder balls attached to a bottom thereof and a second base. A cam lever is rotatably received in the second base and has a handle portion extending to exterior of the second base for operation of the cam lever. A cover is slidably mounted on the first base and the second base and fixes the first base and the second base in a juxtaposed relation.

Abstract: A power connector including an insulative housing defining an elongate slot in a front face thereof for receiving a central processing unit (CPU) module therein and pairs of upper and lower passages in an opposite face thereof in communication with the slot for receiving power contact pairs that electrically engage the CPU module. Each pair of power contacts includes a ground terminal and a hot terminal respectively received in the upper and lower passages. Each pair of ground and hot terminals have tail sections extending beyond the rear face and offset toward each other for securely receiving and electrically engaging a capacitor board to supply electrical power to the CPU module. Each lower passage is elongated in a direction away from the corresponding upper passage for providing an additional space to receive and retain a signal contact. Each signal contact has a tail section extending beyond the rear face for being electrically connected to a flat cable for exchange of data and control signals.

Abstract: A zero insertion force socket comprises a base and a cover movably mounted on the base. The base has a body portion from a front edge of which a head extends and two cutouts defined beside the head. A hole is defined in the head and in communicating with the two cutouts via a space defined below the bottom of the head. The cover has two sockets extending downward therefrom and movably received in the cutouts. A locking strip has two ends firmly retained in the sockets and an intermediate portion positioned in the space below the bottom of the head. A spring member is formed in the intermediate portion of the locking strip and movably received in the hole of the head of the base. A recess is defined at a bottom of the base for receiving the spring member when the spring member is deformed and moved together with the cover.

Abstract: A driving mechanism is used for a socket which comprises a cover movably mounted on a base. The driving mechanism comprises a first reception space defined in the cover, a second reception space defined in the base and communicating with the first reception space, a driving cam having an upper portion rotatably retained in the first reception space of the cover and a lower portion rotatably and movably retained in the second reception space of the base. The upper portion of the driving cam is operative to rotate the lower portion of the driving cam in the second reception space which is subjected to reactive force from inner wall of the second reception space so that as the cam rotates it also moves linearly, thereby forcing the upper portion of the driving cam to pulling the cover to translate on the base.

Abstract: A driving mechanism is provided for a socket which comprises a cover movably mounted on a base between an open status and a closed status. The driving mechanism comprises a first reception space defined in the cover, a second reception space defined in the base and communicating with the first reception space, a driving device having an upper portion retained in the first reception space of the cover and selectively operative to move the cover in opposite directions, and a lower portion connected to the upper portion and having a positioning member operatively switchable between a first position and a second position in the second reception space of the base. The upper portion of the driving device moves the cover between the open status and the closed status depending on the relative position of the positioning member in the second reception space.

Abstract: A card edge connector comprises an insulative housing having a mating face and a mounting face and a plurality of different kinds of conductive contacts. The housing defines an elongate slot in the mating face for receiving a mating edge of a circuit board having an unequal number of conductive pads on opposite faces of the mating edge. The housing also defines a plurality of aligned, transverse cavities on each side thereof for receiving the different kinds of conductive contacts therein. At least two kinds of different contacts are received in the transverse cavities of one side of the housing and a smaller number of contacts are received in the cavities of the opposite side of the housing.

Abstract: An electrical connector includes an insulative base (8) defining a plurality of contact receiving bores (81) for each receiving a contact element (9) therein. A cover plate (5) is attached to the base to define a space therebetween for movably receiving a slide plate (7). The slide plate defines a plurality of slots (72) corresponding to the contact receiving bores of the base and each slot retains a conductive member (70) therein. The cover plate defines holes (51) therein corresponding to the slots and adapted to guide pins (4) of a chip module into the slots. The slide plate is moveable between a released position and an engaged position where the conductive member engages with both the pin and the contact element to establish electrical connection therebetween. Each contact element includes a soldering section (92) extending beyond the base and adapted to be soldered to a circuit board (3), and an engaging section (93) extending into the corresponding slot for being engaged by the conductive member.

Abstract: An electrical connection assembly includes a connector having a first portion defining a first row of contact receiving channels receiving and retaining first contacts therein and a second portion defining second and third rows of contact receiving channels receiving and retaining second and third contacts therein. Each contact has a soldering section extending beyond the connector. A first flexible circuit board and a second flexible circuit board are connected to the connector. The soldering sections of the first contacts are soldered to the first flexible circuit board by means of either through hole or surface mounting techniques. The soldering sections of the second and third contacts are respectively soldered to the second flexible circuit board by means of through hole and surface mounting techniques.

Abstract: A socket comprises a base having a plurality of lower passageways each of which receives a contact which has an upper section extending upward beyond the base. A cover has a plurality of upper passageways each of which is in communication with one of the lower passageways and adjacent to a retention aperture which accommodates the upper section of the contact. The cover is movably engaged with the base so that when the cover is moved with respect to the base, each contact will be bent by the cover.

Abstract: A socket comprises a cover movably mounted on a base between an open status and a closed status. The cover and the base each have a body portion and a head portion extending from the body portion. The cover has first pair of inner walls and second pair of inner walls respectively formed in the body portion and the head portion thereof for slidably retaining the corresponding body portion and head portion of the base. Positioning members containing spaced shallow regions are formed in the body portion and the head portion of the base for receiving protrusions formed in the corresponding body portion and head portion of the cover so that the cover can be retained in either the open status or closed status by cooperation of the positioning members and the protrusions.

Abstract: A socket connector includes a base defining first holes for receiving cylindrical pins therein and a cover fixed to the base for defining a space therebetween for movably receiving a slider. The cover defines second holes corresponding to the first holes of the base for receiving terminal pins of an electronic device therein. The slider defines slots corresponding to the holes for retaining contacts therein. Each contact engages with/separates from the corresponding pin of the base and the corresponding terminal pin for establishing/breaking electrical connection therebetween. The base is mounted to a substrate board having conductive traces formed thereon. A solder ball electrically connects each conductive trace to the corresponding pin of the base. The substrate board is made of a material having a thermal expansion coefficient identical to the circuit board thereby eliminating the possibility of rupturing the solder balls due to different thermal expansions of the boards.

Abstract: A socket connector includes a pair of spaced locking blocks fixed to a circuit board. A plurality of contact elements is mounted to the circuit board between the locking blocks. A cover is fixed to the locking blocks and spaced from the circuit board for movably receiving a slide plate therebetween. The cover retains a central processing unit (CPU) module thereon and defines a plurality of holes corresponding to the contact elements through which pins of the CPU module extend. The slide plate defines slots corresponding to the contact elements and the holes of the cover for partially receiving the pins and the contact elements therein whereby when the slide plate is moved to a predetermined position, electrical connection is established between each contact element and the corresponding pin of the CPU module for connecting the CPU module to the circuit board.

Abstract: An electrical connector for electrically connecting a chip module to a circuit board comprises a dielectric base, a dielectric cover, a number of contacts and a positioning member. Each contact comprises a contact portion received in the base and a joining portion extending into the positioning member. The positioning member has a number of guiding holes and a number of conical receiving recesses having solder balls deposited therein. The guiding holes of the positioning member snugly receive the joining portions of the corresponding contacts thereby preventing molten solder from flowing into the base. The positioning member may be made of the same dielectric material as the mating circuit board thereby eliminating different thermal expansion between top and bottom surfaces of the solder balls due to a difference in coefficients of thermal expansion between the electrical connector and the mating circuit board.

Abstract: An electrical socket comprises a dielectric base defining a plurality of receiving chambers therein, a number of terminals having a mating section and a soldering section, and a bottom board attached to the base. A dielectric cover is mounted to the base or is an integral part of the base for positioning pins of a mating integrated circuit (IC) chip. The bottom board is made of the same material as a mating circuit board. Thus, when the socket is soldered to the mating circuit board, misalignment between the terminals and the corresponding soldering pads of the mating circuit board is prevented due to identical coefficients of thermal expansion of the circuit board and the bottom board. The base forms a stand-off on a joining surface proximate the mating circuit board for distancing the bottom board from the base.

Abstract: A cam mechanism for driving a zero-insertion-force connector between open and closed positions is disclosed. The connector include a base for being mounted to a mother board. A cover is slidably mounted on the base. The cam mechanism includes a cam having a head rotatably mounted on the base, a body located between the base and the cover and a bottom face supported by the cover. First and second depressions are formed on the body of the cam and angularly spaced from each other 90 degrees. A positioning arm is integrally formed with the base. The positioning arm has a bulge formed at its free end. When the cam is rotated to a position wherein the bulge is fittingly received in the first depression, the cam pushes the cover relative to the base to reach the open position. When the cam is rotated to a position wherein the bulge is fittingly received in the second depression, the cam pushes the cover relative to the base to reach the closed position.

Abstract: An electrical socket includes an insulative cover, a base defining passageways therethrough, and a board, all being secured together. A plurality of electrical terminals is received in the passageways of the base. Each of the terminals has a back portion with a pair of arms provided at opposite sides thereof, a contact section inwardly extending from each arm for abutting against a corresponding pin of a CPU, and a tip extending from the back portion.

Abstract: An electrical connector assembly comprises a cover, a base having a number of conductive terminals received therein, and a cam mechanism for driving the cover along the base. The cover provides a number of standoffs for distancing a mounting face of the base from a printed circuit board. The cam mechanism comprises a cam including a lower column and an upper column stacked together with axes thereof being offset from each other a predetermined distance, a locking spring, and an opening and a recess respectively defined in the cover and the base for receiving the cam and the spring. The lower column defines a pair of notches spanning an arc of approximately 90 degrees around a periphery thereof. When the cam rotates in the recess of the base, the spring moves between the pair of notches and the upper column moves in the opening of the cover to drive the cover along the base.

Abstract: A horizontal type card edge connector (10) includes an elongated insulative housing (12) defining a central slot (14) for receiving a module therein. Two rows of passageways (16) are provided by two sides of the central slot (14) in the housing (12) for receiving therein a corresponding number of contacts (18) which are adapted to be engaged with the corresponding circuit pads on the module. Two end blocks (20) disposed at two opposite ends of the housing (12), extend in both downward and rearward directions to define a space therebetween whereby the right angle type contact tails (30) are positioned in the space. A back shell (70) with an L-shaped cross-sectional configuration is attached to the back side of the housing (12) by two latch devices (76) intergrated therewith for protectively covering all the contact tails (30), wherein a horizontal wall (74) and a vertical wall (72) of the back shell (70) are respectively supported by top edge sections (81) and back edge sections (80) of the end blocks (20).

Abstract: A ZIF PGA socket includes a cover slidably engaged with a base to which a cam is pivotably connected. The cam is selectively rotated in clockwise or counterclockwise directions thereby driving the cover to move laterally in opposite directions with respect to the base. The rotation of the cam is retained in a constant plane which is substantially parallel to the movement plane of the cover. The cam and the cover is so configured that free-wheeling will not occur when the cam changes from one orientation to an opposite orientation.

Abstract: An electrical connector includes a base having a top face in which contacts are retained. A cover defining a plurality of through holes for receiving pins of a central processing unit is mounted to the base thereby defining an interior space therebetween for accommodating a slide plate. The slide plate has a conductive member corresponding to each of the contacts and is movable to electrically engage each contact with the corresponding pin of the central processing unit. Two elongate recesses are defined in the top face of the cover. Each elongate recess has two end walls forming two opposite inclined faces. Two elongate projections are formed on a bottom face of the cover and are received in the recesses of the base. Each projection has two inclined end faces matingly and guidingly engaging with the end walls of the corresponding recess thereby properly positioning the cover with respect to the base and preventing the cover from sliding with respect to the base during movement of the slide plate.