Patent ID: 6358773
Filing Date: 2002-03-19
Classification: H01L

Abstract:
A method of making a substrate for use in forming an image sensor package comprising the steps of:providing a molding die including a top mold and a bottom mold wherein the top mold and the bottom mold define a molding cavity shaped generally to conform to the to-be-molded shape of the substrate, the molding die being characterized in that the bottom mold is provided with at least two projections each having a recess; providing a flat lead frame and a chip-supporting member having a flat chip-supporting surface adapted for receiving an image sensor chip; closing and clamping the molding die on the lead frame in a manner that the chip-supporting member is positioned in the molding cavity wherein the chip-supporting member has portions respectively engaged with the recess of each projection thereby assuring that the chip-supporting surface thereof is parallel to the lead frame; transferring a thermoplastic material into the molding cavity; hardening the thermoplastic material; unclamping and opening the molding die to take out the molded product.