Patent ID: 9679864
Date: 2017-06-13
CPC Classifications: H01L

Claim:
1. A method of forming packaged semiconductor devices, comprising: providing a first semiconductor die having bond pads thereon mounted face up on a package substrate or on a die pad of a lead frame substrate, wherein said substrate includes substrate pads in a form of terminals or contact pads; forming a first dielectric layer comprising printing a first dielectric precursor layer comprising a first ink including a first liquid carrier extending from said substrate pads to said bond pads respectively; printing a first interconnect precursor layer comprising a second ink including a second liquid carrier over said first dielectric layer or said first dielectric precursor layer extending from said substrate pads to said bond pads respectively, and sintering or curing said first interconnect precursor layer to remove at least said second liquid carrier to form a first electrically conductive interconnect comprising an ink residue which connects respective ones of said substrate pads to respective ones of said bond pads.