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Dendrite Strength and Adhesion Test Tool

IP.com Disclosure Number: IPCOM000116917D
Original Publication Date: 1995-Nov-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Blizinski, TW: AUTHOR [+4]

Abstract

In the technology of connector interfacing, dendrites can be described as "palladium cucumber shaped" contacts which are grown from a base surface by a special electroplating process. The best application is in the electrical connection systems where mating pads are compressed together, yielding a highly reliable interconnection. The high reliability of dendrites stems from their capability of breaking through oxides and other insulating films, as well as their excellent dust and contamination tolerance. The performance, however, largely depends on their structure and mechanical integrity, of which strength and adhesion are of primary importance.

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Dendrite Strength and Adhesion Test Tool

      In the technology of connector interfacing, dendrites can be
described as "palladium cucumber shaped" contacts which are grown
from a base surface by a special electroplating process.  The best
application is in the electrical connection systems where mating pads
are compressed together, yielding a highly reliable interconnection.
The high reliability of dendrites stems from their capability of
breaking through oxides and other insulating films, as well as their
excellent dust and contamination tolerance.  The performance,
however, largely depends on their structure and mechanical integrity,
of which strength and adhesion are of primary importance.

      The invention is a dendrite strength and adhesion test tool as
shown in Fig. 1.  The major components of the tool are as follows:
a. the base, b. the dental pick assembly, c. the slider bar and d.
the y-translation mechanism.  Fig. 2 is a side view of the tool.

The procedure for strength and adhesion testing using this tool is as
follows:
  1.  place product on base
  2.  align by eye (rough alignment) the product to a location where
       you'll be doing the testing
  3.  secure the product to the base using the provided toe clamps
  4.  position a microscope (10X-30X capability) over the test area
  5.  while observing through the microscope, use the y-translation
       mechanism on the tool to bring your test site into view (a
slight
  ...