Abstract: An electrical socket for interconnecting an LGA chip with a PCB includes an insulative housing (2) and a multiplicity of terminals (1). The housing includes a plurality of passageways (26) extending therethrough for engagingly accommodating corresponding terminals. Each terminal includes a locating plate (10) arranged in rows, and a mating beam (12) connected to the locating plate and extending along the corresponding row. The terminals and the mating beams are arranged so that a projection A of each mating beam along the corresponding row is longer than a distance B between each two adjacent locating plates of two adjacent terminals arranged in the same row. Accordingly, when the mating beams are engaged with electrodes of the LGA chip, the mating beams are long enough to provide excellent resilient deflection characteristics, thereby ensuring good mechanical and electrical connection between the mating beams and the electrodes.

Abstract: An electrical socket for interconnecting an LGA chip with a PCB includes an insulative housing (2) and a multiplicity of terminals (1). The housing includes a plurality of passageways (26) extending therethrough for engagingly accommodating corresponding terminals. Each terminal includes a locating plate (10) arranged in rows, and a mating beam (12) connected to the locating plate and extending along the corresponding row. The terminals and the mating beams are arranged so that a projection A of each mating beam along the corresponding row is longer than a distance B between each two adjacent locating plates of two adjacent terminals arranged in the same row. Accordingly, when the mating beams are engaged with electrodes of the LGA chip, the mating beams are long enough to provide excellent resilient deflection characteristics, thereby ensuring good mechanical and electrical connection between the mating beams and the electrodes.

Abstract: A heat sink assembly includes a CPU mounted on a socket connector (1) and a retention module (5). The retention module comprises a pair of metal frames (50), a pair of retaining claps (56) and a pair of stop bars (54) assembled together with the metal frames. Each frame defines a bottom wall (51), a first side wall (52) and a pair of second side walls (54). Each retaining clip has a hook (56c) formed at a top of the retaining clip for hooking a corresponding stop bar, and a clamping portion (56e) formed at a bottom of the retaining clip. The clamping portion and a free end of the hook together clamp a side portion (41a) of a heat sink assembled to the socket connector.

Abstract: An electrical connector assembly includes a CPU mounted socket connector (1) and a retention module (5). The retention module comprises a pair of metal frames (50), a pair of retaining clips (56) and a pair of stop bars (54) assembled together with the metal frames. Each frame defines a bottom wall (51), a first side wall (52) and a pair of second side walls (54). Each retaining clip has a hook (56c) at a top thereof for hooking a corresponding stop bar, and a clamping portion (56e) at a bottom thereof. The clamping portion and a free end of the hook together clamp a side portion (41a) of a heat sink assembled to the socket connector.

Abstract: A retainer device (1) for attaching a heat sink (30) to a CPU (40) includes a retention module (10) and a slider (20). The retention module has a non-symmetrical opening (12) in a side wall (14) thereof, thus defining a slanted surface (16) on the retention module. The slider defines a first slot (23) accommodating a flange (38) of the heat sink and the side wall of the retention module, and a second ramp slot (25) opposite to the first slot for accommodating the slanted surface of the retention module. A locking spring (27) is connected to the slider with a rotatable cam. The locking spring has a cantilever beam (28), and a pressing portion (29) pressing against the flange of the heat sink.

Abstract: An electrical socket (1) for supporting a CPU to electrically connect with a PCB comprises a non-conductive base (2) defining plural rows of through holes (21), a plurality of terminals (4) retained in corresponding through holes, and a slidable cover (3) mounted on the base. Each terminal has a retaining portion (41), a soldering portion (43) and a mating beam (42) extending from opposite ends of the retaining portion, respectively. The mating beam extends slantedly and upwardly from the retaining portion beyond a top face (23) of the base for conductively contacting a corresponding pin (6) of the CPU.

Abstract: A low-inductance, low-resistance electrical connector for delivering power from a power supply to an IC module comprises a ground contact, a processor power contact and a cache power contact stamped from pure copper sheets and separated from each other by thin insulation film. Plastic members are provided with spring arms to engage with and thus provide sufficient normal force for contact arms of the corresponding contacts to engage with corresponding contact pads of the IC module thereby ensuring a reliable electrical connection. The ground contact and the processor and cache power contacts are connected with a capacitor board by pressure engagement to connect with the power supply. A number of individual signal contacts is also provided to interconnect a signal source with the IC module via a signal board.

Abstract: An electrical LGA socket (1) includes an electrical connector portion (11) and an insulative frame portion (10) surrounding the connector portion. The frame portion comprises a stationary element (12) and a driver (14) pivotally assembled to the stationary element. The stationary element comprises an opening (124) for accommodating the connector portion, a Land Grid Package (LGP)(13) and, a heat sink (3) and, a protrusion (120). First and second aligned retainers (22, 24) located opposite to the protrusion and a pair of opposite sides (122) surrounding the opening. The protrusion secures a second flange (312) of the heat sink. The driver comprises a lever (16) rotatable between an open and closed positions, a shaft (18) pivotally assembled to the first and second retainers, and a follower (20) assembled to the shaft and rotatable together with the shaft in response to rotation of the lever. The follower depresses a first flange (311) of the heat sink.

Abstract: A soft internal touch contact (1) for a Land Grid Array (LGA) socket (4) for interconnecting an LGA package (5) with a printed circuit board (PCB) (6) comprises first and second spring arms (13, 14) on opposite ends thereof, and a solder portion (16) between the first and second spring arms for being soldered to the PCB. The first and second spring arms have first and second free end sections (134, 144) respectively defining a downwardly and an upwardly facing inclined surfaces (136, 146) for engaging with each other thereby establishing a shortened electrical path between the LGA package and the PCB. Upon downward deflection of the first spring arm by the LGA package to engage with the second spring arm, the second spring arm correspondingly yields downward whereby a wiping action is generated between the downwardly and upwardly facing inclined surfaces along a direction substantially tangential to the inclined surfaces and also between the first spring arm and a contact pad (50) of the LGA package.

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 locking mechanism is used in a pin grid array socket which comprises a movably housing and a stationary housing. The locking mechanism comprises a cam lever having a handle bar connected to a cam which is pivotally connected to the stationary housing and operative to drive the movable housing to move in opposite directions. An elongated channel is defined along the handle bar. A first reception groove is formed in the movable housing. A latch is movably and rotatably received in the elongated channel. A head of the latch is movably inserted into the first reception groove for locking the cam lever and preventing the movable housing from movement.

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 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: A connector (10) for electrically connecting a daughter board (200) and a mother board (100) includes a base (12) securely mounted/riveted on the mother board (100) and a cover (26) horizontally slidably attached to the base (12) by means of a cam lever (18). A plurality of passageways (36) obliquely extend through the cover (26) for receiving therein a corresponding number of slanted contacts (38) wherein the bottom end (40) of each contact (38) projects out of the cover (26). The daughter board (200) is disposed under the cover (26) whereby the bottom end (40) of each contact (38) is mechanically and electrically engaged with a corresponding circuit pad (202) on the daughter board (200).

Abstract: A ZIF PGA socket includes a first housing and two second housings slidably received in the first housing. The second housings are simultaneously moved in the first housing by an actuator rod which is driven by a cam lever. The direction of movement of the second housing is substantially perpendicular to the direction of movement of the actuator rod.

Abstract: A board-to-board connector block for horizontally and electrically engaging a secondary board with a source board includes an insulative housing defining a plurality of passageways therethrough for receiving a corresponding plurality of resilient contacts therein, positioning means for properly aligning the connector block onto the source board, a U-shaped lever pivotably engaged with the housing, stabilizing means for holding the lever in place when in a locked position, and fastening means for securing the lever onto the housing. A force from the lever acting on the resilient contacts of the connector block results in a reactive force from each contact acting on a corresponding contact pad of the source board thereby securely and electrically engaging the two boards together.

Abstract: A ZIF PGA socket includes a first housing and two second housings slidably received in the first housing. The second housings are simultaneously moved in the first housing by an actuator rod which is driven by a lever. The direction of movement of the second housing is substantially perpendicular to the direction of movement of the actuator rod.

Abstract: A matrix-type board-to-board electrical connector for horizontally and electrically engaging a daughter board with a mother board includes an insulative housing having a top surface and a bottom surface and defining a plurality of first and second passageways therethrough. Each first passageway receives a C-shaped resilient signal contact therein for transmitting high or low frequency signals. Each second passageway receives a substantially triangular shaped resilient power contact for carrying a large power current. The first passageways receiving the contacts which transmit high frequency signals either have a circular recess defined therearound for receiving a corresponding cylindrical shielding shell or are located between shielded first passageways thereby providing all of the contacts which transmit high frequency signals with shielding properties.

Abstract: A ZIF PGA socket includes a mother housing and two daughter housings slidably received in the mother housing. The daughter housings are simultaneously moved in the mother housing by a cam which is rotatably received between the mother housing and the daughter housings. The thickness of the socket is substantially equal to the thickness of each of the cam lever, the mother housing, and the daughter housings.