Abstract: An electrical connector includes: a plastic base formed with terminal slots; terminals disposed in the terminal slots; a metal sheath disposed at one end of the plastic base and formed with two lateral planes and a middle projection; at least one screw hole member disposed on one side of the plastic base and connected to the lateral plane, wherein the screw hole member has first and second plates, a surface of the first plate is disposed at the one end of the plastic base and is formed with a screw hole on the middle of the surface of the first plate, and the second plate is integrally connected to one end of the first plate and extends to the other end of the plastic base; and at least one connecting element having a lower section formed with a connection portion, and a top end connected to the second plate.

Abstract: An electrical connector disposed on a main board and connected to and engaged with a circuit board includes a plastic base, terminals, a board engaging structure and an elastic card-ejecting member. The plastic base is fixed to the main board and formed with a connection slot having an opening. One end of the circuit board may be inserted into the opening. Each terminal disposed on the plastic base has a projecting connection point disposed on the connection slot. The board engaging structure has an engaging portion, which can engage with the circuit board when the circuit board is inserted into the connection slot. The elastic card-ejecting member enters a forced state when the circuit board is inserted into the connection slot by a stroke, and pushes the circuit board out by another stroke so that the circuit board is engaged with the engaging portion when the elastic card-ejecting member bounces.

Abstract: An electrical card connector includes: a plastic base having one row of first terminals and a first slot; and an upper cover, which has a top surface and covers over the plastic base. A partition baffle is disposed below the top surface of the upper cover. Each side of the partition baffle is formed with a side portion. A first inserting port is formed below the partition baffle. A second inserting port is defined and enclosed by the partition baffle, the two side portions and the top surface of the upper cover. When a first card is inserted into the first slot from the first inserting port, connection points of the first card are electrically connected to the first terminals. When a second card is slantingly inserted from the second inserting port, connection points of the second card are lowered and thus electrically connected to the first terminals.

Abstract: The present invention relates to a flash memory card that is a structure using a rigid flexible board (RFB) to connect a flash memory card unit and a universal serial bus (USB) unit. A communication interface in compliance with the specification of the flash memory card is disposed at one end of the flash memory card, and a USB communication interface is disposed at another end, and a rigid flexible board is provided for connecting the electric signals between the two communication interfaces and the bending characteristic is used to maintain the height difference between the planes of the two communication interface, so that the flash memory card can concurrently have the USB communication interface and enhance the applicability of the flash memory card.

Abstract: The present invention discloses a modular method for manufacturing circuit boards, which is a method of manufacturing multilayer printed circuit boards with blind and buried vias structure by using basic components as the assembly units. The method comprises the steps of producing electric circuits on the surface of a copper clad laminate by photolithographic and etching methods, pressing a dry film dielectric onto the surface of the laminate by the dry film lamination method after the electric circuit layer is formed, drilling a via and plugging a plastic conductive material into the via to obtain a basic component.