Browse Prior Art Database

High Temperature Lubricant

IP.com Disclosure Number: IPCOM000108050D
Original Publication Date: 1992-Apr-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 33K

Publishing Venue

IBM

Related People

Booth, RB: AUTHOR [+3]

Abstract

Arrays of contacting probes are essential for electrical test of unpackaged semiconductor devices. Dielectric die materials suitable for guiding probes in high temperature test environments are often abrasive. (Image Omitted)

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High Temperature Lubricant

       Arrays of contacting probes are essential for electrical
test of unpackaged semiconductor devices.  Dielectric die materials
suitable for guiding probes in high temperature test environments are
often abrasive.

                            (Image Omitted)

      Disclosed is a description of a high-temperature lubricant
having the necessary properties of being lubricating,
non-contaminating, nonelectrical conducting and of not affecting
further processing of the semiconductor device being tested.

      The lubricant formula consists of a mixture of boron nitrate, a
micro-crystalline wax and hexane as a solvent. To apply, the die is
immersed in this solution in an ultrasonic tank for a short period of
time, removed, and the solvent evaporated.  The resulting composite
of boron nitrate and wax is left lining each of the holes to act as
the lubricant surrounding the contacting probe.