Semiconductor device
First Claim
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1. A semiconductor device comprising:
- a semiconductor substrate through which a via hole is formed from a back surface to a front surface of the semiconductor substrate;
an electrode provided on the front surface of the semiconductor substrate and closing the via hole; and
a metal film provided on the back surface of the semiconductor substrate, a side wall of the via hole, and a lower surface of the electrode,wherein an opening is provided in the metal film on the back surface of the semiconductor substrate, andthe opening abuts on only part of a circumference of the via hole to thereby discharge gas permeating an interface between the semiconductor substrate and the metal film.
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Abstract
A semiconductor device includes: a semiconductor substrate through which a via hole is formed from a back surface to a front surface of the semiconductor substrate; an electrode provided on the front surface of the semiconductor substrate and closing the via hole; and a metal film provided on the back surface of the semiconductor substrate, a side wall of the via hole and a lower surface of the electrode, wherein an opening is provided in the metal film on the back surface of the semiconductor substrate, and the opening abuts on only part of a circumference of the via hole.
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Citations
3 Claims
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1. A semiconductor device comprising:
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a semiconductor substrate through which a via hole is formed from a back surface to a front surface of the semiconductor substrate; an electrode provided on the front surface of the semiconductor substrate and closing the via hole; and a metal film provided on the back surface of the semiconductor substrate, a side wall of the via hole, and a lower surface of the electrode, wherein an opening is provided in the metal film on the back surface of the semiconductor substrate, and the opening abuts on only part of a circumference of the via hole to thereby discharge gas permeating an interface between the semiconductor substrate and the metal film. - View Dependent Claims (2, 3)
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Specification