Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2007-12-04
2007-12-04
Prenty, Mark V. (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S750000
Reexamination Certificate
active
11081787
ABSTRACT:
The invention relates to a power semiconductor component with increased robustness, in which a contact layer (13, 14) applied directly to a main surface (7, 11) of the semiconductor body (1) is composed of a metal (13) having a high melting point or of a thin aluminum layer (14), the layer thickness of which preferably lies between 1 and 5 nm. This contact layer is reinforced with a customary multilayer metallization system (15). The aluminum layer may, if appropriate, be patterned (14′).
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Schulze Hans-Joachim
Strack Helmut
Infineon - Technologies AG
Maginot Moore & Beck
Prenty Mark V.
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