Patent ID: 8091764
Filing Date: 2012-01-10
Classification: B23K,G02B,H01L,H01S

Abstract:
1. A bonding method for bonding objects to be bonded having a bonding portion formed of metal, comprising the following steps: (a) removing impurities around the objects to be bonded by evacuating to reduce pressure; (b) introducing an inert reaction gas; (c) etching the bonding portions of the objects to be bonded with an energy wave which is an atom beam, an ion beam, or a plasma to thereby clean the bonding portions of adhering substances and generate an active dangling bond of a metal atom on a bonding surface of the bonding portions; (d) contacting the bonding portions of the objects to be bonded with each other; and (e) crushing minute irregularities on a bonding surface of the bonding portions in contact with each other to thereby bond to the objects to be bonded together, wherein