Patent ID: 9245867
Filing Date: 2016-01-26
CPC Classification: H01L

Claim Text:
1. A method of forming a package-on-package (POP) electronic device, the method comprising: providing a first packaging substrate having a first semiconductor integrated circuit (IC) device electrically and mechanically coupled thereto; providing a second packaging substrate having a second semiconductor integrated circuit (IC) device electrically and mechanically coupled thereto; providing a solder interconnection between the first and second packaging substrates with the first semiconductor IC device between the first and second packaging substrates and spaced apart from the solder interconnection; and providing a sealing layer on the solder interconnection; wherein providing the solder interconnection comprises providing an interconnection solder structure on at least one of the first packaging substrate and/or the second packaging substrate, and heating the interconnection solder structure to provide the solder interconnection between the first and second packaging substrates; wherein providing the sealing layer comprises providing a liquid sealing material on the interconnection solder structure before heating the interconnection solder structure, and hardening the liquid sealing material to form the sealing layer; wherein the liquid sealing material comprises a liquid epoxy sealing material and a solder flux agent.