Patent ID: 6168960
Filing Date: 2001-01-02
Classification: G01N

Abstract:
A method for device deprocessing from a backside of a multi-layer integrated circuit utilized in a flip-chop orientation, the method comprising: a) reducing a first backside layer of the multi-layer integrated circuit to a predetermined thickness; b) exposing an active region utilizing reactive ion etching of the multi-layer integrated circuit to allow device analysis of the multi-layer integrated circuit; c) removing a metal layer utilizing mechanical polishing beneath the active region to expose interlayer dielectric material; d) performing a bulk delayering utilizing reactive ion etching of the interlayer dielectric material to expose a next metal layer; and e) continuing to perform steps c) and d) until device analysis and delayering from the backside is completed, wherein the device is inspected to determine if there is a defect after steps c) and d).