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Dive into the research topics where Toshio Yonezawa is active.

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Featured researches published by Toshio Yonezawa.


Solid-state Electronics | 1982

High-voltage planar junction with a field-limiting ring

Seiji Yasuda; Toshio Yonezawa

Abstract A twodimensional Poisson equation is solved as part of a program to improve breakdown characteristics of a planar p-n junction by using a field limiting ring. The influences of n− concentration and n− layer width of p+-n−-n+ diode are investigated. Higher n− concentration and smaller n− width make optimum distance between anode and field limiting ring smaller. Breakdown voltages predicted by optimising method reported agree well with the experimental results.


Archive | 2005

Method for forming resist pattern

Tiharu Kato; Hatsuo Nakamura; Shigeo Koguchi; Toshio Yonezawa; Toshihiro Abe


Archive | 1984

Semiconductor device having a multilayer wiring structure using a polyimide resin

Masaharu Aoyama; Masahiro Abe; Takashi Ajima; Toshio Yonezawa


Archive | 1981

Method of dicing a semiconductor wafer

Masahiro Abe; Masafumi Miyagawa; Hatsuo Nakamura; Toshio Yonezawa


Archive | 1983

Method for forming metallization structure having flat surface on semiconductor substrate

Masaharu Aoyama; Masahiro Abe; Takashi Ajima; Toshio Yonezawa


Archive | 1984

Semiconductor device monolithically comprising a V-MOSFET and bipolar transistor isolated from each other

Seiji Yasuda; Toshio Yonezawa; Shunichi Hiraki; Masafumi Miyagawa


Archive | 1978

Semiconductor device with silicon carbide-glass-silicon carbide passivating overcoat

Toshio Yonezawa; Takashi Ajima; Masato Uchida


Archive | 1980

Semiconductor device and a method for manufacturing the same

Toshio Yonezawa; Masaharu Aoyama


Archive | 1980

Method of manufacturing semiconductor device utilizing outdiffusion and epitaxial deposition

Kuniaki Kumamaru; Shunichi Hiraki; Toshio Yonezawa


Archive | 1983

Semiconductor device with an improved bonding section

Masahiro Abe; Masaharu Aoyama; Takashi Ajima; Toshio Yonezawa

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