Patent ID: 9143114
Filing Date: 2015-09-22
Classification: G04F,H03B,H03H

Abstract:
1. A bonding type crystal controlled oscillator, comprising: a crystal package that houses a crystal oscillator; and a circuit package that houses an electronic circuit component constituting an oscillation circuit with the crystal oscillator, the circuit package and the crystal package being bonded by two-tier bonding, wherein the crystal package includes a container that has a back surface facing the circuit package and includes a plurality of output terminals with a flat shape, the plurality of output terminals forming one step higher than the back surface, the circuit package includes an upper surface facing the crystal package and a plurality of external terminals with a flat shape disposed at positions corresponding to the plurality of output terminals formed on the crystal package, the plurality of external terminals forming one step higher than the upper surface, an anisotropy conductive adhesive is interposed between the back surface of the crystal package facing the circuit package and the upper surface of the circuit package facing the crystal package, the anisotropy conductive adhesive including a thermosetting resin containing solder micro particles dispersed in the thermosetting resin, and assuming that a thickness of the output terminal formed at the crystal package is C μm, a thickness of the external terminal formed at the circuit package is D μm, and an average outside diameter of the solder micro particles dispersed in the anisotropy conductive adhesive is E μm, the dimensional relation is set to (C+D)>E, wherein assuming that: the crystal package and the circuit package that satisfy a sum of (A+B)≦20 μm are used to be bonded.