Browse Prior Art Database

Module Probe Package

IP.com Disclosure Number: IPCOM000120527D
Original Publication Date: 1991-May-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 73K

Publishing Venue

IBM

Related People

Kan, JC: AUTHOR [+6]

Abstract

This probe-cap package provides the user with means to probe top surface signal and voltage pads of a thermal conduction module while providing heat conductive cooling of the chips during full system power-up.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 74% of the total text.

Module Probe Package

      This probe-cap package provides the user with means to
probe top surface signal and voltage pads of a thermal conduction
module while providing heat conductive cooling of the chips during
full system power-up.

      With reference to Fig. 1, the package is comprised of elastomer
probing ports 1 that are molded in a transparent cover 2.  The
elastomer is used to seal and contain fluorocarbon cooling fluid 3
during probing and after probe removal.  Four ports for each chip
location 4 gives access to all the probing pads.  Visual access for
probe manipulation and contact is provided by the transparent cover
2.

      Chip cooling is accomplished with custom made "pogo" pins 5
having heat conductive contacts 5 that removes heat from the chips
and transfers it to the fluorocarbon.  An array of "pogos" is located
on the underside of the cover 2 to correspond to the chip array of
the substrate.  Each "pogo" is located on the center line of a chip.

      With reference to Fig. 2, the package allows visual and probing
access through the transparent elastomeric membrane 1.  Transparency
permits a probe 7 to be optically aligned, "externally", to any one
of many engineering change pads. After probe alignment, the probe 7
is pushed through the elastomeric membrane 1 into a liquid
flurocarbon chamber 3 until contact with the EC pad is made.  When
the desired results are achieved, the probe is removed from the
membrane while the membran...