Patent ID: 6512288
Filing Date: 2003-01-28
Classification: H01L

Abstract:
A circuit board for making a plurality of semiconductor packages, the circuit board comprising:a resin layer in the form of a rectangular sheet with first and second sides, the resin layer having rows and columns of rectangular package units, each package unit being a site for the formation of one of the semiconductor packages, each package unit having a central through hole and being bounded by a peripheral sub slot of a predetermined length, the package units being grouped in a plurality of rectangular sub strips of the circuit board, the sub strips being arranged in a row, with a main slot of a predetermined length between adjacent sub strips; a plurality of circuit patterns, each circuit pattern being formed on the resin layer between the through hole of a package unit and the sub slots of the package unit; and an insulative cover coat coated on at least a portion of the circuit pattern of each package unit.