Patent ID: 7507346
Filing Date: 2009-03-24
Classification: B81B,B81C,G01P,H01L,Y10T

Abstract:
1. A method for manufacturing an electronic component, comprising the steps of: preparing an element substrate having a function section arranged to provide a function of an electronic component and an external-connection electrode provided on a surface thereof and arranged to electrically connect the function section to an external device; bonding a relatively-low-sandblast-resistant case plate to the element substrate using a relatively-high-sandblast-resistant adhesive; forming, by sandblast processing, a hole in the case plate so that the adhesive is exposed on a portion of the hole beneath which a portion of the external-connection electrode is defined; removing, by etching, an adhesive portion that is exposed in the hole and that is not removed by the sandblast processing to expose the external-connection electrode; forming an electrode film so that the electrode film extends on an inner surface of the hole from an outer surface of the case plate and so that the electrode film is electrically connected to the external-connection electrode exposed by removing the adhesive; and forming a projection on the outer surface of the case plate, the projection having a leading end surface on which the electrode film extends.