Patent ID: 6514786
Filing Date: 2003-02-04
Classification: B81B,B81C,G01P

Abstract:
A method of manufacturing an acceleration sensor comprising the steps of:(a) preparing first and second insulating substrates and a non-insulating substrate; (b) providing at least two contact holes on said first insulating substrate; (c) joining said first insulating substrate to said non-insulating substrate and forming, in said non-insulating substrate, a movable electrode and a fixed electrode which are to be connected to said contact holes respectively by using a photolithographic technique and an anisotropic etching technique; (d) forming a conductive film on said first insulating substrate and in said contact holes such that said movable electrode and said fixed electrode are conducted through said contact holes; (e) joining, by an anode junction method, said second insulating substrate to a surface of said non-insulating substrate which is opposite to a surface where said first insulating substrate is joined while applying a predetermined electric potential to said conductive film; and (f) patterning said conductive film to be divided into electrode films connected to said fixed electrode and said movable electrode, respectively.