Abstract: An electrical connector contact adapted for connecting a chip to a circuit board comprises a first terminal, a second terminal electrically connecting with the first terminal and a spring. The first terminal is defined with a first abutting portion and a contact beam extending from one end of the abutting portion. The second terminal is defined with a second abutting portion and a elastic beam extending from one end of the second abutting portion. The spring is set between the first and second abutting portion with the two ends thereof separately abutting against the first abutting portion and second abutting portion. Along the contact beam there forms a retain slot, the elastic beam mating with and retain in the retain slot. A good electrical performance can be achieved according to the structure of the invention and the contact is convenient for assembling and changing.

Abstract: An electrical connector (100) includes an insulative housing (2) defining a plurality of passageways (21) and a plurality of contacts (1) received in corresponding passageways. Each contact includes a moveable part (10) forming a pair of guiding beams (105), an immoveable part (20) coupled with the moveable part and a biasing device (30) constantly urging the moveable part away from immoveable part. The immoveable part includes a pair of posts (205) and defines a pair of guiding slots (207). The guiding beams are received in the guiding slots and are capable of moving with regard to the immovable part along opposite surfaces of the immoveable part. The guiding beams and the posts are decussated to surround the biasing device for preventing the biasing device from disengaging therefrom.

Abstract: A socket connector includes a socket body, a moving plate movably mounted upon the socket body, and an actuating mechanism. The actuating mechanism comprises a lid, a first operating lever, and a second operating lever. The first and second operating levers are disposed between the lid and moving plate with opposite tilted angles. The first operating lever has a cam section engaged with a bearing section formed on the moving plate so as to drive the moving plate to move in a substantially horizontal direction.

Abstract: A socket assembly has a socket and a heat sink module detachably mounted on the socket. The socket has a base, a sliding board mounted on the base, a lid disposed upon the base and an actuator disposed between the base and the cover. The heat sink module has a fastening frame surrounding the base, a cover pivotally assembled to an end of the fastening frame and a heat sink mounted on the cover. The cover has a latching portion which latches with a top wall of the lid when the cover rotates to a closed position. The heat sink is brought by the cover to pass an open defined on the lid and to abut against an IC package seating on the sliding board.

Abstract: A test socket assembly (100) comprises a test socket (10) and a heat dissipation module (5) assembled on the test socket (10), the test socket (10) comprises a base (1) with a plurality of contacts (12) received therein, a cover (3) with a window (33) assembled on the base (1), the heat dissipation module (5) comprises an interlock member (53) going through the window (33) to interlock with the cover (3) to make the heat dissipation module (5) to be securely located on the test socket (10).

Abstract: A NROM memory device includes an array of memory cells and first and second bit lines. The first and second bit lines are coupled to opposite sides of the memory cells. During an erase operation, one of the sides of the memory cells receives a positive voltage and the other side couples to a common node or a limited current source. Methods are also disclosed that can easily screen for marginal memory cells based on a threshold voltage distribution of the memory cells.

Abstract: A test socket comprising an insulative base with a plurality of contacts received in the base and a cover pivotally mounted to one end of the base. The cover comprises a pusher with an opening extending therethrough and a lid aligned with the pusher. The lid has a through hole corresponding to the opening of the pusher. Between the pusher and the lid have a plurality of elastic members for making the lid moveably with respect to the pusher.

Abstract: A burn-in socket, for electrically connecting an IC package to a print circuit board, includes a base, a lid assembled upon the base and being movable up and down relative to the base and a latch pivotally linking to the base by a first shaft thereof. The latch defines a through hole which receives a second shaft pivotally linking to the lid. When being brought by the lid, the second shaft moves up and down in the through hole and drives the latch to rotate.

Abstract: An electrical contact comprises an upper contact pin, a lower contact pin and a spring enveloping between the upper contact pin and the lower contact pin. The upper contact pin has an upper contacting portion and a guiding portion, and the lower contact pin is coupled to the upper contact pin and has a lower contacting portion and a main portion extending from the contacting portion. The main portion of the lower contact pin includes two elastic arms, and each elastic arm has a first and a second locking protrusions engaging with a slot defined on the guiding portion of the upper contact pin respectively to reliably connect the upper contact pin and the lower contact pin.

Abstract: A socket connector comprises an insulating base receiving a plurality of contacts, a movable frame assembled to the insulating base, at least one latch device pivotally assembled to the insulating base, and at least one actuating member corresponding to the latch device and retained on a sidewall of the movable frame. The at least one actuating member includes a driving portion disposed at inner edge of the sidewall of the movable frame and extending downwardly. The movable frame is able to move up and down relative to the insulating base. Each latch device includes a latching member having a pressing portion with a cuneiform outside surface. When the actuating member moves up and down together with the movable frame, the driving portion of the actuating member pushes the cuneiform outside surface of the pressing portion of the latch device to shift between a closed position and an opened position.

Abstract: An electrical connector (100) for receiving a central process unit comprises: a first insulative housing (14) defining a number of receiving channels (141) extending along a first direction; a second insulative housing (13) located above the first insulative housing and defining a number of passageways (131) aligned to corresponding receiving channels; a third insulative housing (15) located below the first insulative housing and defining a number of holes (151) extending therethrough and aligned to corresponding passageways; and a number of thin, elongated contacts (11) received in the first, the second and the third insulative housing. Each thin, elongated contact has a contact portion (111) positioned above a top surface of the second insulative housing, a tail portion (112) extending through the holes of the third insulative housing, and a base portion (115) retained in the first and the second insulative housing.

Abstract: An electrical contact includes a first contact pin, a second contact pin and an elastic member surrounding the first contact pin and the second contact pin. Both of the first contact pin and the second contact pin include contacting portions. The first contact pin has a guiding portion including two lead-in arms and a stop portion between the two leading arms. The second contact has a main body and a protrusion on a top end of the main body. The leading arms define a guiding groove therebetween for the main body of the second contact pin moving up and down. The protrusion abuts against the stop portion of the first contact pin to prevent the second contact from sliding out of the guiding groove.

Abstract: An electrical connector (1) for receiving an IC package includes a socket body (2) with a plurality of contacts (4) therein. A cover (3) is pivotally mounted with respect to the socket body (2) and defines an inner side close to the socket body (2) and an outer side opposite to the socket body (2). A heat sink (5) is provided to be mounted with the cover (3) by a plurality of fasteners (6). The fasteners (6) are inserted into the cover (3) and the heat sink (6) from the inner side of the cover (3).

Abstract: The present invention provides a complementary metal-oxide-semiconductor (CMOS) device and a fabrication method thereof. The CMOSFET device includes a compressively strained SiGe channel for a PMOSFET, as well as a tensile strained Si channel for an NMOSFET, thereby enhancing hole and electron mobility for the PMOSFET and the NMOSFET, respectively. As such, the threshold voltages of the two types of transistors can be obtained in oppositely symmetric by single metal gate.

Abstract: A contact assembly includes a first contact, a second contact and a coil spring enclosing the first and the second contacts. The first contact has a first contacting section and a first mating section. The first mating section includes a pair of sliding arms. The second contact has a second contacting section and a second mating section. The second mating section has pair of protrusions at a top end thereof, the protrusions defines a pair of guiding slots to guiding the sliding arms to contact with the second mating section.

Abstract: An IC socket for receiving an IC package comprises a socket body for carrying the IC package. A plurality of contacts are received in the socket body for electrical connection with the IC package. A driving member is mounted upon the socket body and able to operate between an upper position and a lower position. At least one latch device comprises an upper section, a lower section parallel to the upper section and a regulator. The regular links the upper section and the lower section and force the lower section to move relative to the upper section.

Abstract: An electrical connector (100) for electrically connecting a Central Processing Unit (CPU) with a Printed Circuit Board (PCB), includes a base (2), a plurality of insulative layers (34), a plurality of contacts (4) and a plurality of cams (33). The base defines a cavity (21) and the insulative layers are stacked and received in the cavity. The insulative layers define a plurality of passageways therein. The contacts are received in the passageways of the insulative layers. The cams are rotatable around to push different insulative layers to have different degrees of movement in a predetermined direction.

Abstract: A contact for a burn-in socket electrically connecting an IC package and a printed circuit board, comprises a first contact, a second contact and a spring disposed between the first contact and the second contact. The first contact and the second contacts have a same configuration, and each contact has a U-shaped actuating portion with two legs and a conductive portion extending from one of the legs. The first contact and the second contact are orthogonally assembled together, and the first actuating portion bestrides the second actuating portion to clasp with second actuating portion, so that the conductive portions have an offset therebetween.

Abstract: An burn-in socket used for connecting an IC package includes an base urged upward by springs, an actuated device floatably assembled on said base, a frame retained on said base, a plurality of contacts received in said base. Said actuated device includes a plurality of sustaining shafts with a plurality of rollers ringed thereon. Said latching assembly includes a plurality of rotating shafts retained on said base and a plurality of latching members engaged with said rotating shafts and rotating between an open position and a locking position. The actuated member when urged upwardly causes to rollers to press on back side faces of the latching members to rotate them between an open position and a closed position with lowered abrasion.

Abstract: A burn-in socket, for electrically connecting an IC package to a print circuit board, includes a base, a lid assembled upon the base and being movable up and down relative to the base and a latch pivotally linking to the base by a first shaft thereof. The latch defines a through hole which receives a second shaft pivotally linking to the lid. When being brought by the lid, the second shaft moves up and down in the through hole and drives the latch to rotate.