Patent ID: 9691729
Date: 2017-06-27
CPC Classifications: B23K,H01L

Claim:
1. A method for bonding a first substrate to a second substrate, the method comprising: providing the first substrate comprising a bonding surface comprising a plurality of microchannels spaced apart from one another such that one or more portions of the bonding surface of the first substrate are the microchannels and other portions of the bonding surface are positioned between the microchannels; providing the second substrate comprising a complementary bonding surface; providing a bonding layer precursor comprising a metal; positioning the bonding layer precursor between the first substrate and the second substrate, wherein the first surface of the bonding layer precursor is in contact with at least a portion of the bonding surface of the first substrate, and the second surface of the bonding layer precursor is in contact with at least a portion of the complementary bonding surface of the second substrate; and bonding the first substrate to the second substrate by heating the bonding layer precursor to form a bonding layer, wherein the bonding layer fills the microchannels of the first substrate and contacts substantially the entire bonding surface of the first substrate.