Browse Prior Art Database

Substrate Position Securing Concept

IP.com Disclosure Number: IPCOM000111491D
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Hering, RL: AUTHOR

Abstract

Disclosed is a method to secure the Substrate Position Relative to the Baseplate after Module Assembly.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Substrate Position Securing Concept

      Disclosed is a method to secure the Substrate Position Relative
to the Baseplate after Module Assembly.

      By utilizing a spring loaded wedge against a sliding wedge, an
effective system to provide a "hard stop" is created with minimal
side forces exerted on the substrate.  The explanation below starts
out with both wedges retracted and retained by the locking screws.

      In Fig. 1, the locking screw 1 is loosened which allows springs
2 to advance the jam wedge 3.  As jam wedge 3 is advanced, it pushes
slide wedge 4 forward until contact against substrate 5 is made.  A
probe tip may be pushed down through the center of locking screw 1 to
ensure wedge loading.  With jam wedge 3 secured against slide wedge
4, the substrate 5 to baseplate 6 is secured.

      In Fig. 2., eight such systems are shown placed around the
perimeter of the substrate 1 which would adequately secure its
position relative to the baseplate 2.

      The system is self adjusting because the spring wedge will
advance the slide wedge only to the point of contact with the
substrate.  In addition, although the force experienced by the
substrate is minimal, the holding power of this system is very high
due to the shallow angle of the wedge interface.  The main benefit is
creating an effective hard stop without the use of high pre-loads
such as in a set screw application.