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Dive into the research topics where Masayuki Kokado is active.

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Featured researches published by Masayuki Kokado.


international solid-state circuits conference | 1989

A 54000-gate ECL array with substrate power supply

Masayuki Kokado; Makoto Yoshida; Norihito Miyoshi; Kouichi Suzuki; M. Takaoka; N. Tsuzuki; H. Harada

In microprocessor and system LSIs having several tens of thousands of gates, performance is determined by interconnection delay rather than by intrinsic gate delay because of limitations on total power consumption. This difficulty can be overcome if bipolar circuits can be made with density comparable to that of MOS circuits. To this end a bipolar technique using five interconnection layers is applied to an ECL (emitter-coupled-logic) gate array containing 53912 equivalent gates on a 7.8-mm*8.2-mm chip. The gate density is 843 gates/mm/sup 2/ for the chip and 1159 gates/mm for the internal cell region. The density results in short interconnections which reduces line delay, the major factor affecting VLSI performance. An emitter-base self-aligned structure with polysilicon electrodes and resistors (ESPER) combined with U-groove isolation with thick field oxide is employed in the device. Chip parameters and circuit schematics are presented.<<ETX>>


Archive | 1985

PNPN integrated circuit protective device with integral resistor

Masayuki Kokado; Hidezi Sumi


Archive | 1991

SEMICONDUCTOR INTEGRATED CIRCUIT HAVING INTERCONNECTION WITH IMPROVED DESIGN FLEXIBILITY, AND METHOD OF PRODUCTION

Kouichi Suzuki; Norihito Miyoshi; Makoto Yoshida; Masayuki Kokado


Archive | 1990

Semiconductor integrated circuit having interconnection with improved design flexibility

Kouichi Suzuki; Norihito Miyoshi; Makoto Yoshida; Masayuki Kokado


Archive | 1983

ECL Circuit for forcibly setting a high level output

Hirokazu Suzuki; Masayuki Kokado


Archive | 1981

Line driver circuit

Hideji Sumi; Masayuki Kokado


Archive | 1981

Line driver circuit having a protective circuit against excess currents

Hideji Sumi; Masayuki Kokado


Archive | 1980

Circuitry for protecting a semiconductor device against static electricity

Masayuki Kokado; Hedezi Sumi


Archive | 1990

Emitter coupled logic circuit

Masayuki Kokado


Archive | 1985

A line driver circuit including a protective circuit against excess current

Hideji Sumi; Masayuki Kokado

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