Patent ID: 8048254

Claim:
An electric component mounting method for electrically connecting a electric component and a substrate using a compression bonding device having a first and a second pressing plate and a first and a second pressing rubbers placed on the first and second pressing plates, respectively, the method comprising the steps of: arranging an object to be compression bonded of which electric components are disposed on a front face and rear face of a substrate, between the first and second pressing rubbers; and disposing the electric components by adhesion force of anisotropic conductive films arranged on the front face and rear face of the substrate, arranging protective films releasable from the anisotropic conductive films between the first pressing rubber and the object to be compression bonded, and between the second pressing rubber and the object to be compression bonded, heating the anisotropic conductive films so as to increase the flowability of the anisotropic conductive film, then, pressing the electric components with the first and second pressing rubbers in order to fix each of the electric components onto the substrate in a state that a compression member made of a material possessing voids therein like a spongy-rubber is arranged between the first pressing rubber made of an elastic material having internal uniform property and the first pressing plate, wherein a volume of the compression member decreases during the pressing of the electric components with the first and the second pressing rubbers.