Patent ID: 8017439
Filing Date: 2011-09-13
Classification: C09J,H01L

Abstract:
1. A method of forming stacked electronic articles, comprising: mounting a first carrier wafer to a top side of a through substrate via (TSV) wafer including TSV die using a first adhesive material that has a first debonding temperature; thinning said TSV wafer from a bottom side of said TSV wafer to form a thinned TSV wafer, wherein said thinning includes exposing embedded TSV tips on said TSV wafer to form exposed TSV tips; mounting a second carrier wafer to said bottom side using a second adhesive material, wherein said second adhesive material has a second debonding temperature that is higher as compared to said first debonding temperature; heating said thinned TSV wafer to a temperature above said first debonding temperature to remove said first carrier wafer from said thinned TSV wafer, and bonding at least a second IC die onto said TSV die on said top side of said thinned TSV wafer to form a stacked TSV wafer comprising electronic article.