Patent ID: 9674939
Date: 2017-06-06
CPC Classifications: H01L,H05K,Y10T

Claim:
1. A method for producing a mechanically autonomous microelectronic device comprising at least one electric via enabling an electric connection from at least one first face of the device, the method comprising the following sequence of operations: from a first substrate comprising a first portion of the at least one electric via exposed to a first face of the first substrate, and from a second substrate comprising a second portion of the at least one electric via exposed to a first face of the second substrate, bonding the first substrate to the second substrate, by direct bonding of the first faces thereof so that the first portion and the second portion of the at least one electric via are in electrical continuity; and partially removing a part of the first substrate from a second face of the first substrate, opposite the first face of the first substrate, so as to reach the first portion of the at least one electric via, wherein said direct bonding is from one or more of the first substrate comprising the first portion of the at least one electric via unexposed from the second face of the first substrate, and the second substrate comprising the second portion of the at least one electric via unexposed from the second face of the second substrate.