Patent ID: 6662841
Filing Date: 2003-12-16
Classification: B30B,B32B,H05K,Y10T

Abstract:
A vacuum press for bonding a plurality of laminar substrates comprising:a processing chamber having an interior portion defined by two side walls, front and rear walls, a chamber ceiling, and a chamber floor; a lower bolster member disposed within the processing chamber having a force applying surface; an upper force transfer member connected to the lower bolster member such that movement in the upper force transfer member produces concurrent movement in the lower bolster member; a stationary bolster member maintained between the upper force transfer member and the lower bolster member such that distance between the upper force transfer member and the stationary bolster member can vary; an actuator connected to the upper force transfer member that moves the upper force transfer member between a load position and a press position; and a plurality of platens having a support surface onto which the laminar substrate is placed and a lower force receiving surface, wherein the platens are disposed within the processing chamber between the chamber ceiling and the lower bolster member and in predetermined alignment therewith and wherein as the lower bolster member is moved by the actuator toward the pressing position, the platens move into confronting engagement such that clamping forces are applied to the platens by the actuator.