Publication


Featured researches published by Calvin Shizuo Nomura.


electrical overstress/electrostatic discharge symposium | 2004

Electrostatic discharge (ESD) protection of giant magneto-resistive (GMR) recording heads with a silicon germanium technology

Steven H. Voldman; Sam Luo; Calvin Shizuo Nomura; Kevin Roy Vannorsdel; Natalie B. Feilchenfeld

Experimental studies on the ESD protection were completed on advanced magnetic recording giant magneto-resistive heads using a BiCMOS silicon germanium technology for the first time. SiGe-based active and passive elements, such as isolated MOSFETs, varactors and Schottky diodes were used to evaluate the influence of turn-on voltage on the protection levels.


IEEE Journal of Solid-state Circuits | 1997

A resonant switching write driver for magnetic recording

Richard James Reay; Klaas Berend Klaassen; Calvin Shizuo Nomura

This paper describes a high-speed circuit for driving magnetic recording write heads. Resonant current switching enables a reduction in power consumption without compromising switching speed. With a 100 nH load and 120 mA/sub pp/ write currents, a rise time of 1.6 ns was achieved with a 7 V power supply.


Archive | 1988

Protective circuit for a magnetoresistive element

Stephen Alan Jove; Klaas Berend Klaassen; Calvin Shizuo Nomura; Jacobus Cornelis Leonardus Vanpeppen


Archive | 1986

Voltage amplifier for constant voltage biasing and amplifying signals from a MR sensor

Stephen Alan Jove; Klaas Berend Klaassen; Calvin Shizuo Nomura; Jacobus C. L. van Peppen


Archive | 1990

LOW NOISE AMPLIFIER WITH SHORT CIRCUIT PROTECTION FOR SIGNALS FROM MAGNETORESISTIVE ELEMENT

Stephen Alan Jove; Klaas Berend Klaassen; Calvin Shizuo Nomura; Jacobus C. Leonardus van Peppen


Archive | 1996

High speed FET write driver for an inductive head

Paul Wingshing Chung; John Thomas Contreras; Calvin Shizuo Nomura


Archive | 1997

Preamplifier bias mode to re-initialize a GMR head after losing initialization

Paul Wingshing Chung; John Thomas Contreras; Klaas Berend Klaassen; Calvin Shizuo Nomura


Archive | 1991

LOW NOISE VOLTAGE-BIASING AMPLIFIER FOR MAGNETORESISTIVE ELEMENT

Stephen Alan Jove; Charles R. Nielsen; Calvin Shizuo Nomura; Michael L. Workman


Archive | 1996

Voltage measurement circuit for a magnetoresistive head installed in a disk enclosure

John Thomas Contreras; Glen Alan Garfunkel; Calvin Shizuo Nomura


Archive | 1977

Track accessing circuitry for a disk file with switchable filter

Dewey Earl Brownback; Calvin Shizuo Nomura; Dennis Patrick Sheehan; Michael Mchugh Siverling

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