Patent ID: 8153503
Filing Date: 2012-04-10
Classification: B81B,B81C,H01J

Abstract:
1. Method for producing a device comprising at least one microstructured element, comprising the following steps in the order set forth: providing a first substrate having a first face and a second face opposite the first face, at least one cavity including a portion of interest being opened in the first face; after said providing, depositing on said first face of the first substrate a nonconformal layer of protective material to close off the at least one cavity without filling the portion of interest; after said depositing, attaching on the nonconformal layer a second substrate by molecular bonding or using an adhesive substrate; after said attaching, thinning the first substrate from the second face of the first substrate and producing from the second face of the first substrate at least one electrical connection to the portion of interest of the cavity; and after said thinning, removing at least partially the nonconformal layer and exposing the portion of interest.