Patent ID: 6304151
Filing Date: 2001-10-16
Classification: H01L,H03B

Abstract:
A crystal oscillator comprising:a vessel main body having a concave portion;a cover bonded to the vessel main body so as to form an encapsulated vessel together with the vessel main body;a crystal blank held within the vessel;an IC (integrated circuit) chip containing an oscillating circuit utilizing the crystal blank and having a plurality of IC terminals on a major surface thereof; anda plurality of circuit terminals formed on a bottom surface of the concave portion of the vessel main body at positions corresponding to the positions of the IC terminals, respectively; whereinthe IC chip is fixed to the vessel main body on the bottom surface thereof such that the IC terminals are bonded to the circuit terminals, respectively, through bumps, andat least one of the IC terminals is a group-arranged terminal including a plurality of unit terminals commonly connected to one another, and each of the plurality of unit terminals is connected to a corresponding one of the circuit terminals through the bump.