Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2007-08-14
2007-08-14
Le, Dung A. (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S296000, C257S297000, C257S303000, C257S310000
Reexamination Certificate
active
10920344
ABSTRACT:
The upper electrode of a capacitor is constituted of laminated films which act to prevent hydrogen atoms from reaching the capacitor electrodes and degrading performance. In one example, a four layer upper electrode respectively acts as a Schottky barrier layer, a hydrogen diffusion preventing layer, a reaction preventing layer, and an adsorption inhibiting layer. Therefore, the occurrence of a capacitance drop, imperfect insulation, and electrode peeling in the semiconductor device due to a reducing atmosphere can be prevented. In addition, the long-term reliability of the device can be improved.
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Fujisaki Yoshihisa
Kushida Keiko
Miki Hiroshi
Nakai Hiromi
Shimamoto Yasuhiro
Antonelli, Terry Stout & Kraus, LLP.
Le Dung A.
Renesas Technology Corp.
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