Browse Prior Art Database

Clamping Device for Substrates

IP.com Disclosure Number: IPCOM000108548D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 2 page(s) / 74K

Publishing Venue

IBM

Related People

Renz, U: AUTHOR

Abstract

This article describes a mechanical clamping device for keeping flexurally stiff components, such as multilayer ceramic substrates, from unintentionally dropping out of a carrier.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 75% of the total text.

Clamping Device for Substrates

       This article describes a mechanical clamping device for
keeping flexurally stiff components, such as multilayer ceramic
substrates, from unintentionally dropping out of a carrier.

      The outer contours of the substrates are particularly liable to
wear and chipping, leading to a high reject rate.

      As the substrates in the carrier are guided over only 75
percent of their edge length, there is the risk of them dropping out
or being damaged.

      The proposed mechanical clamping device, which may be screwed
to existing carriers, constitutes one solution to this problem.  The
underlying concept is that of a slightly biased eccentric which,
inside a clamping assembly, is used, for example, to transport heavy
sheet-metal plates.

      In the proposed design, a multilayer ceramic substrate is
readily insertable into guide slots.  The eccentric is opened by the
substrate against the force of a slightly biased spring, thus
allowing insertion right up to the stop provided for.

      For avoiding the slight friction existing between the substrate
and the eccentric, the latter may be opened manually by means of its
lever.  In this case, the inserted component is held in the carrier
almost tension-free.  If, as a result of external influences, a force
is exerted on the substrate in the direction of removal, then the
eccentric closes automatically, retaining the substrate in the
carrier.  The clamping area o...