Abstract: An LGA connector is used to interconnect an LGA package and a printed circuit board. The LGA connector includes an elastomeric body with a plurality of through-holes. Metal films are formed on inner walls of through-holes and splay out around the mouths of their upper and lower openings. The metal films are formed by vacuum metallization, sputtering, chemical plating, electrical plating or PVD. The through-holes have a funnel-like shape to absorb external stresses and redirect the stress to shrink the through-hole diameters. Moreover, the metal films' elastic deformation is larger than conventional metal conductive fillers so as to improve reliability.

Abstract: The present invention is a mobile device having an improved roller feel, comprising a hollow metal cylinder, a support and a plurality of terminals disposed firmly on the support. The hollow metal cylinder comprises a plurality of interference areas at an end of the hollow metal cylinder. The support comprises two braces. The terminals comprises a plurality of spring contacts, where the terminals are in contact with the inner surface of the hollow metal cylinder and at least one of the spring contacts stretches into the hollow metal cylinder in a depth not exceeding the scope of the interference areas. When rolling the hollow metal cylinder, the present invention makes the spring contacts create explicit and regular stress variations to produce a sense of feel. The interactions between the hollow metal cylinder and the spring contacts are enhanced and the sense of feel is more obvious; and the effect of durability is improved.

Abstract: The present invention is a roller construction module having an error prevention structure, comprising a base; a roller disposed in said base; two terminals at two opposite ends of the base to be electrically connected with a metal ring in the roller; a first and a second plungers on the bottom surface of the base; a post between the first and the second plungers; a third plunger on the position at the opposite side to the post on the bottom surface; and a first and a second protecting rods at two opposite ends near the third plunger. Based on the above-said structure, the switch at the left or the right side of the roller construction module can be respectively activated, and another switch, at the middle area of the mobile device, can be prevented from being activated simultaneously so that error prevention is achieved.

Abstract: A matrix connector includes a first electrically insulative housing and a second electrically insulative housing arranged in a stack with the respective terminal slots respectively aligned, and terminals sets each formed of a movable terminal axially slidably mounted in the terminal slots of the first electrically insulative housing and a terminal holder mounted in the terminal slots of the second electrically insulative housing and clamped on the respective movable terminal for enabling the respective movable terminal to be moved axially relative to the respective terminal holder when maintained in contact with the respective terminal holder.

Abstract: A matrix socket includes a first insulating housing, a second insulating housing and a plurality of terminal assemblies. Each terminal assembly has a movable terminal and terminal seat. The first insulating housing and the second insulating housing are corresponding to each other, and have accommodating channels for placing the terminal assemblies therein, so as to enable the movable terminals and the terminal seats become electrically connected in a slidable manner.

Abstract: A land grid array includes a flat-plate connector plastic housing having a plurality of terminal grooves, and a plurality of terminals having a pair of contact points and disposed in the various terminal grooves, wherein the contact points serve as connecting structures between a circuit board and another circuit board, or between an integrated circuit and a circuit board. Each terminal is formed by bending an integral metal plate, and has a fixing portion, a flexible portion and a signal transmission portion. The terminal is capable of reducing overall stress, such that the signal transmission portion is easily deformed without leaving permanent deformation. Meanwhile, wiping motions by the contact points are performed between a circuit board and another circuit board, or between an integrated circuit and a circuit board for removing oxidized thin-films on contact surfaces involved.

Abstract: A board to board array type connector comprising an array type connector, an upper supporting cover, a lower supporting cover, a screw with a bolt and a screw nut; during application, the upper supporting cover is on the top of the upper PCB, the upper pressing area/point presses down on the top of the upper PCB, the lower supporting cover is on the bottom of the lower PCB, the lower pressing area/point presses up on the bottom of the lower PCB; the screw with bolt passes through all the through holes and is fastened with the screw nut on the end to assemble the whole set, the stress is distributed equilibrium to the upper and lower pressing area/point, the pressure is evenly over all the connection pins of the array type connector for better electrical conductivity.

Abstract: A board to board array type connector comprising an array type connector, an upper supporting cover, a lower supporting cover, a screw with a bolt and a screw nut; during application, the upper supporting cover is on the top of the upper PCB, the upper pressing area/point presses down on the top of the upper PCB, the lower supporting cover is on the bottom of the lower PCB, the lower pressing area/point presses up on the bottom of the lower PCB; the screw with bolt passes through all the through holes and is fastened with the screw nut on the end to assemble the whole set, the stress is distributed equilibrium to the upper and lower pressing area/point, the pressure is evenly over all the connection pins of the array type connector for better electrical conductivity.

Abstract: A matrix socket includes a first insulating housing, a second insulating housing and a plurality of terminal assemblies. Each terminal assembly has a movable terminal and a terminal seat. The first insulating housing and the second insulating housing are corresponding to each other, and have accommodating channels for placing the terminal assemblies therein, so as to enable the movable terminals and the terminal seats become electrically connected in a slidable manner.

Abstract: A matrix connector includes a first electrically insulative housing and a second electrically insulative housing arranged in a stack with the respective terminal slots respectively aligned, and terminals sets each formed of a movable terminal axially slidably mounted in the terminal slots of the first electrically insulative housing and a terminal holder mounted in the terminal slots of the second electrically insulative housing and clamped on the respective movable terminal for enabling the respective movable terminal to be moved axially relative to the respective terminal holder when maintained in contact with the respective terminal holder.

Abstract: A land grid array includes a flat-plate connector plastic housing having a plurality of terminal grooves, and a plurality of terminals having a pair of contact points and disposed in the various terminal grooves, wherein the contact points serve as connecting structures between a circuit board and another circuit board, or between an integrated circuit and a circuit board. Each terminal is formed by bending an integral metal plate, and has a fixing portion, a flexible portion and a signal transmission portion. The terminal is capable of reducing overall stress, such that the signal transmission portion is easily deformed without leaving permanent deformation. Meanwhile, wiping motions by the contact points are performed between a circuit board and another circuit board, or between an integrated circuit and a circuit board for removing oxidized thin-films on contact surfaces involved.

Abstract: A latching device used in a card edge connector for the installation of an auxiliary card such as a memory module card is disclosed. The card edge connector comprises a receptacle body and two latching devices located at two sides of the receptacle body. The latching device comprises: a movable part including an elongated flat plate having a fixed end and a free end, and a latching member located near to the flexible free end for detachably latching the auxiliary card to be inserted and rotated to its installation position; a fixed part comprising an elongated flat plate, an inserting portion extending from the flat plate for inserting into a mounting hole of the receptacle body, and an inserting/rotating stop extending from the flat plate for limiting depth with respect to the auxiliary card being inserted and angle with respect to the auxiliary card being rotated.