Patent ID: 8633259

Claim:
A method of producing a semiconductor device comprising: forming a first polymer layer over a first surface of a first substrate; forming a second polymer layer over the first polymer layer or over a first surface of a second substrate, where one of the first polymer layer and the second polymer layer comprise a depolymerizable polymer backbone; fixably attaching the first substrate to the second substrate through the first polymer layer and the second polymer layer; processing a second surface of one of the first substrate or the second substrate; after the processing, causing one of the first polymer layer or the second polymer layer to depolymerize at a temperature at or below 200° C.; separating the first substrate from the second substrate; and wherein one of said first polymer layer and said second polymer layer comprises a photoacid generator or a photosensitizer and at least one of said first polymer layer or one of said second polymer layer contains a polylactide.