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MICROELECTRONIC CIRCUIT DISCRETE RESISTOR/CAPACITOR COMBINATION

IP.com Disclosure Number: IPCOM000005595D
Original Publication Date: 1986-Oct-01
Included in the Prior Art Database: 2001-Oct-18
Document File: 2 page(s) / 61K

Publishing Venue

Motorola

Related People

Al Neubecker: AUTHOR

Abstract

Thick and thin film hybrid microelectronic circuits, orotherelectronic circuit substrates that use leadless components, frequently use parallel connected resistor and capacitor combinations. This often requires that two separate components, adiscrete resistor and adiscrete capacitor, be attached to the surface of the substrate. The use of two discrete components, however, requires a corresponding amount of substrate "real estate" to attach both components.

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Page 1 of 2

MOTOROLA Technical Developments Volume 6 October 1966

MICROELECTRONIC CIRCUIT DISCRETE RESISTOR/CAPACITOR COMBINATION

by Al Neubecker

   Thick and thin film hybrid microelectronic circuits, orotherelectronic circuit substrates that use leadless components, frequently use parallel connected resistor and capacitor combinations. This often requires that two separate components, adiscrete resistor and adiscrete capacitor, be attached to the surface of the substrate. The use of two discrete components, however, requires a corresponding amount of substrate "real estate" to attach both components.

   To conserve substrate real estate, and thereby reduce the overall size or component density of the substrate, the resistor can be screened and fired on the discrete capacitor, as illustrated in the drawing, such that the resistor is electronically connected in parallel with the capacitor. Using well known trimming techniques such as laser trimming, the resistor can then be trimmed either before or after the resistor/capacitor combination is attached to the substrate.

0 Motorola, Inc. 1966 11

[This page contains 15 pictures or other non-text objects]

Page 2 of 2

MOTOROLA Technical Developments Volume 6 October 1986

TERMINAL /

0 Motorola, Inc. 1986 12

[This page contains 15 pictures or other non-text objects]