Patent ID: 7486149

Claim:
A method of manufacturing a surface mount type crystal oscillator having a container body including a first recess and a second recess respectively formed in two main surfaces thereof, a crystal blank hermetically sealed in the first recess, an IC chip having an oscillation circuit integrated thereon and secured to a bottom surface of the second recess through thermo-compression bonding using bumps, and a protection resin for protecting a circuit-forming surface of said IC chip, said method comprising the steps of: applying the protection resin consisting of a flexible resin along an inner periphery of the second recess said flexible resin comprises a silicone resin which is a thermosetting silicone resin; pressing said IC chip while an outer periphery of said IC chip is brought into contact with the applied protection resin to secure said IC chip to the bottom surface of the second recess; and thermally curing the silicone resin after said IC chip has been secured to the bottom surface of the second recess.