Patent ID: 6624005
Filing Date: 2003-09-23
Classification: H01L

Abstract:
A method of making a plurality of memory cards, said method comprising:providing a substrate having opposite first and second surfaces and a plurality of individual chip-mounting sites on said first surface thereof, wherein the substrate is a printed circuit board sheet with input/output terminals on the second surface of each chip mounting site thereof; mounting a memory chip on and in electrical connection with said first surface of said substrate in a corresponding one of each of said mounting sites; attaching said second surface of said substrate to a first surface of a carrier sheet; encapsulating each of said memory chips and a corresponding one of said mounting sites in a body of hardened plastic; cutting through said body and said printed circuit board sheet along a periphery of at least a portion of each of said mounting sites to define a plurality of individual memory cards on said carrier sheet, whereby the memory card so formed includes an encapsulated subportion of the printed circuit board sheet, said subportion having a substantially rectangular perimeter including at least four rectilinear side wall portions, wherein at least two of said rectilinear side wall portions are encapsulated during said encapsulation step and at least one said rectilinear side wall portion of the memory card so formed is not encapsulated and is coincident with a side of the plastic body; and, detaching said individual memory cards from said carrier sheet.