| abstract |
A method includes forming a release film over a carrier, forming a metal post on the release film, encapsulating the metal post in an encapsulating material, performing a planarization on the encapsulating material to expose the metal post, forming a redistribution structure over the encapsulating material and the metal post, decomposing a first portion of the release film to separate a second portion of the release film from the carrier, and forming an opening in the release film to expose the metal post. |