Patent ID: 9462736
Filing Date: 2016-10-04
CPC Classification: B23K,B82Y,H01L,H05K,Y10T

Claim Text:
1. A method of forming a flip chip, comprising: providing a first substrate on which first conductive patterns are formed and a second substrate on which second conductive patterns are formed; arranging the first substrate and the second substrate such that the first conductive patterns and the second conductive patterns face each other; providing a first composition between the first and second substrates such that the first composition comes in contact with an entire upper surface of the second substrate and fills a space between the first and second substrates, the first composition comprising a low melting point solder, a thermal-curable polymer resin, and a curing agent of an anhydride family material; and forming a contact portion connecting the first and second conductive patterns, the contact portion being made of the low melting point solder.