Patent ID: 6974759
Filing Date: 2005-12-13
Classification: H01L

Abstract:
1. A Process for manufacturing a stacked structure comprising at least one thin layer bonded to a target substrate, comprising the following steps: a) formation of a thin layer starting from an initial substrate, the thin layer having a free face called the first contact face; b) putting the first contact face into bonding contact with a face of an intermediate support, the structure obtained being compatible with later thinning of the initial substrate; c) thinning of the said initial substrate to expose a free face of the thin layer called the second contact face and opposite the first contact face; d) putting a face of a target substrate into bonding contact with at least part of the second contact face, the structure obtained being compatible with later removal of all or some of the intermediate support; and e) removal of at least part of the intermediate support in order to obtain the said stacked structure, wherein the target substrate is only a temporary support for the thin layer, the said steps in the process are entirely or partly repeated, and the target substrate is treated as the initial substrate or the intermediate support wherein the target substrate is a semiconductor substrate.