Browse Prior Art Database

METAL CORE ELASTOMERIC SHIELDING GASKET

IP.com Disclosure Number: IPCOM000006887D
Original Publication Date: 1993-Jun-01
Included in the Prior Art Database: 2002-Feb-08
Document File: 2 page(s) / 76K

Publishing Venue

Motorola

Related People

Jennifer L. Thadani: AUTHOR [+3]

Abstract

In the electronics indushy, RFVEMI shielding is often a requirement in the design of a printed circuit boaid, functional module, or system. Many times shielding is required between two rigid parts, whether they are designed to mate to each other or not. In these instances, an electrically conductive material is required to fill the gaps between the rigid parts. Because of mechanical part tolerances, often the conductive material must be deformable. Often the rigid parts are designed to be brought out of their mating position and then back agajn, as in the case of a removable cover to a module hous- ing. In this application, a permanent set in the direction of compression of the gap-tilling material is not desirable.

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INC. Technical Developments Volume 19 June 1993

METAL CORE ELASTOMERIC SHIELDING GASKET

by Jennifer L. Thadani, Christopher Bach, and John Chapman

  In the electronics indushy, RFVEMI shielding is often a requirement in the design of a printed circuit boaid, functional module, or system. Many times shielding is required between two rigid parts, whether they are designed to mate to each other or not. In these instances, an electrically conductive material is required to fill the gaps between the rigid parts. Because of mechanical part tolerances, often the conductive material must be deformable. Often the rigid parts are designed to be brought out of their mating position and then back agajn, as in the case of a removable cover to a module hous- ing. In this application, a permanent set in the direction of compression of the gap-tilling material is not desirable.

  Many products exist to satisfy the needs of the cases expressed above. Beryllium copper linger stock and con- ductive elastomeric gasketing materials are two exam- ples of such products. The invention, a rigid-cored elastomeric shielding gasket, provides an improvement

over these two products because it can be formed into any shape for a given application. Another advantage to the invention is that it can form tighter bend radii than its counterparts that do not have a rigid core. The ability to hold a given shape once it is formed is also advanta- geous because it will eliminate the need for fixt...