Ohmega-Ply®is an ideal design for applications requiring high resistor density or where the electronic package size is critical.
[TABLE OF CONTENTS]

I) INTRODUCTION

A) PURPOSE

The intent of this manual is to provide the information required for users and designers of printed wiring boards to incorporate OHMEGA-PLY® resistors in their applications. In addition, it also assists the users in understanding some of the physical and thermal characteristics of the OHMEGA-PLY® RESISTOR-CONDUCTOR MATERIAL (RCM) so that their designs can achieve maximum stability and performance.

B) EXPLANATION OF OHMEGA-PLY®

FIG.1



OHMEGA-PLY® is a thin film nickel alloy electrodeposited onto copper foil. That product Ohmega-Ply® RCM (RESISTOR-CONDUCTOR MATERIAL) is then laminated to a dielectric material and subtractively processed to produce planar resistors. Because of its thin film nature (approximately 0.1--0.4 micron thick), it can be buried within layers without increasing the thickness of the board or occupying any surface space like discrete or axial-lead resistors.

[TABLE OF CONTENTS]

C) TYPICAL APPLICATIONS

• Digital electronics for pull-up/pull-down on open collectors or gate inputs
• Line terminators
• Opto-electronics, for LED current limiting
• Switch pad potentiometers and power dividers
• Microwave attenuators and stripline designs
• Parallel terminating resistors fabricated into voltage planes of ECL circuitry (Please go to New to the Site to see the demonstrations)
• Series terminating resistors for high speed CMOS applications
• Isolation resistors for burn-in boards

These applications have been used for computers, calculators, test instrumentation, medical electronics, communications equipment, consumer electronics, avionics, and other similar applications.