Patent ID: 7745236

Claim:
A method of deprocessing a semiconductor structure comprising a silicide layer over a second poly layer, an interpoly dielectric layer, and a first poly layer on a substrate, comprising: removing substantially all of the silicide layer by contacting the semiconductor structure with a silicide etchant without substantially affecting or damaging an integrity of the second poly layer; inspecting the second poly layer removing substantially all of the second poly layer by contacting the semiconductor structure with a polysilicon etchant without substantially affecting or damaging an integrity of the interpoly dielectric layer comprising silicon oxide and silicon nitride; inspecting the interpoly dielectric layer removing at least a portion of or substantially all of an unimplanted substrate by contacting the semiconductor structure with an unimplanted substrate etchant without substantially affecting or damaging an integrity of an implanted portion of the substrate; and inspecting the implanted portion of the substrate.