Patent ID: 7588964
Filing Date: 2009-09-15
Classification: H01L

Abstract:
1. A method of stacking semiconductor devices, comprising: preparing a plurality of semiconductor devices, each having an upper surface and a lower surface and one or more via-electrodes protruding from at least one of the upper surface and lower surface; forming a first adhesive film on the upper surface of the plurality of semiconductor devices, the first adhesive film having first patterning properties and first puncturing properties; forming a second adhesive film on the first adhesive film of at least one of the plurality of semiconductor devices, the second adhesive film having second patterning properties and second puncturing properties, wherein the first patterning properties are better than the second patterning properties, and the second puncturing properties are better than the first puncturing properties; and stacking the plurality of semiconductor devices to electrically connect the one or more via-electrodes by puncturing the second adhesive film with a protruding portion of the one or more via-electrodes.