1) Microchip locale 2) Spot for microchips 
(from the article `integrated circuit`) Each die that passes testing is placed into a hard plastic package, as shown in the photograph. These plastic packages, called chips, are what one ...
A thin board, usually fiberglass, on which components are mounted. Also called a printed circuit board (or PCB) because the connections between the components are printed onto the board.
Convenient, flat layer on which the electronic components that make up a circuit may be placed, often containing metallic, conductive strips to connect the components together.
[n] - a printed circuit that can be inserted into expansion slots in a computer to increase the computer`s capabilities
circuit card noun a printed circuit that can be inserted into expansion slots in a computer to increase the computer`s capabilities
a sheet of insulating material used for the mounting and interconnection (often by a printed circuit) of components in electronic equipment. · · board (def. 13a). · a piece of material on which printed or integrated circuits are installed. Also calledboard(for defs. 1, 2b).