| 摘要 |
A stack of a first and second semiconductor structures is formed. Each semiconductor structure includes: a semiconductor bulk, an overlying insulating layer with metal interconnection levels, and a first surface including a conductive area. The first surfaces of semiconductor structures face each other. A first interconnection pillar extends from the first surface of the first semiconductor structure. A housing opens into the first surface of the second semiconductor structure. The housing is configured to receive the first interconnection pillar. A second interconnection pillar protrudes from a second surface of the second semiconductor structure which is opposite the first surface. The second interconnection pillar is in electric contact with the first interconnection pillar.
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