Patent ID: 6441316
Filing Date: 2002-08-27
Classification: H01L,H05K,Y02P

Abstract:
A printed-circuit board, comprising:a circuit substrate; a plurality of patterned wires formed on a surface of said circuit substrate; a plurality of lands, each land connected to at least one of said patterned wires through an end portion thereof; and a protection layer with a plurality of openings, covering the surface of said circuit substrate, wherein each of said plurality of openings in said protection layer exposes a corresponding land and is substantially larger than said corresponding land so as to be spaced away from the entire periphery of said corresponding land and expose the end portion of the patterned wire connected to said corresponding land and a peripheral portion on the periphery of said corresponding land, and at least one end portion exposed by a corresponding opening in said protection layer is located beneath a semiconductor integrated circuit to be connected with said circuit substrate.