Patent ID: 8241455

Claim:
A method for packaging electric components on a substrate comprising: provisionally bonding each component to both a front face and a rear face of a substrate, respectively, by an adhesive film so as to constitute an object to be pressed; interposing the object to be pressed with two pressing rubbers; surrounding outer peripheries of the two pressing rubbers and an outer periphery of the object to be pressed by a dam member; pressing the object to be pressed by the two pressing rubbers, while heating the electric components, in a state that bulges of the two pressing rubbers is stopped by the dam member; fixing the electric components to the both sides of the substrate, respectively; placing protective films, which are deformable and releasable from the adhesive film, between one of the pressing rubbers and the object to be pressed and between other of the pressing rubbers and the object to be pressed, respectively, to interpose the object to be pressed with the two pressing rubbers; and pressing the two pressing rubbers towards the object to be pressed via the protective films.