Patent ID: 6391742
Filing Date: 2002-05-21
Classification: B81B,B81C,G01C,G01P

Abstract:
A method of manufacturing a small size electronic part comprising:providing a thin portion in a silicon substrate by forming a concave groove on a first surface of the silicon substrate; bonding a surface of a first glass substrate to the first surface of the silicon substrate; providing a functional element and signal output portion in the thin portion of the silicon substrate; bonding a surface of a second glass substrate having an accommodating concave portion comprising a closed space to accommodate the functional element to a second surface of the silicon substrate; and providing a communicating hole in at least one of the glass substrates and in at least a portion of the signal output portion of the silicon substrate so as to pass through at least one of the glass substrates and cut into at least a part of the signal output portion; and forming a conductive film on an inner wall surface of the communicating hole and extending on a surface of the glass substrate.