Abstract: A thin and small computer system that can be used generally for control of equipment or the like, includes a CPU chip, peripheral control chips, and other components mounted in the form of a bare chip, whereby a computer system having a so-called hierarchy architecture can be incorporated in an IC card-like casing. Computer system components are affixedly attached to a double-sided printed wiring board. Electronic components may be attached to the printed wiring board in a bare form and then at least partially sealed with a resin. A system may further include a second printed board which is independent from the first printed board and adhesively attached to a inner surface of the casing and connected to the first printed board by a flexible member. In addition the second circuit board may include structure which enables it to connect to an apparatus for programming an electronic component attached thereto.

Abstract: A card type semiconductor device includes a main circuit board and a first sub-circuit-board equipped with a main memory. The main circuit board is connected to the first sub-circuit-board through an FPC. A first TCP equipped with the CPU and a second TCP equipped with the I/O sub-system chip are mounted on the top and bottom surfaces of the main circuit board. The first and second TCPs are mounted to directly oppose each other. The card type semiconductor device is used as a card type computer. The main circuit board and the sub-circuit-board face each other by bending the FPC and enclosing the main circuit board and the sub-circuit-board in a card-shaped thin housing. The card type semiconductor device achieves a high density packaging in a small form factor.

Abstract: A thin and small computer system that can be used generally for control of equipment or the like, includes a CPU chip, peripheral control chips, and other components mounted in the form of a bare chip, whereby a computer system having a so-called hierarchy architecture can be incorporated in an IC card-like casing. Computer system components are affixedly attached to a double-sided printed wiring board. Electronic components may be attached to the printed wiring board in a bare form and then at least partially sealed with a resin. A system may further include a second printed board which is independent from the first printed board and adhesively attached to a inner surface of the casing and connected to the first printed board by a flexible member. In addition the second circuit board may include structure which enables it to connect to an apparatus for programming an electronic component attached thereto.

Abstract: A thin and small computer system that can be used generally for control equipment or the like, includes a CPU chip, peripheral control chips, and other components mounted in the form of a bare chip, whereby a computer system having a so-called ISA architecture can be incorporated in an IC card-like casing. Computer system components are fixedly attached to a double-sided printed wiring board. One side of the printed wiring board includes the CPU chip, an IO subsystem chip and memories and the other side includes an image control circuit, memories and the peripheral control chips. A 236-pin connector is formed on a long side of this card-type computer, and is connected to a control bus and an IO bus of the card-type computer. The control bus and the IO bus are not located at opposed positions in the connector. A position of separating the buses from each other is off the center of the connector.

Abstract: A thin and small computer system that can be used generally for control equipment or the like, includes a CPU chip, peripheral control chips, and other components mounted in the form of a bare chip, whereby a computer system having a so-called ISA architecture can be incorporated in an IC card-like casing. A 236-pin connector is formed on a long side of this card-type computer, and is connected to a control bus and an IO bus of the card-type computer. The control bus and the IO bus are not located at opposed positions in the connector. A position of separating the buses from each other is off the center of the connector. Power lines or ground lines are provided at the separating positions in the connector, thus preventing occurrence of unnecessary electromagnetic radiation noise. RAMs are mounted on a sub-PW board, which provides flexibility for the system. A bare chip of an EEPROM is mounted on another printed wiring board, which enables electrical forming to be performed after such mounting.