Browse Prior Art Database

Copper Cold Plates with Titanium Skeleton and Tubes

IP.com Disclosure Number: IPCOM000110462D
Original Publication Date: 1992-Nov-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 1 page(s) / 43K

Publishing Venue

IBM

Related People

Jordhamon, G: AUTHOR [+2]

Abstract

Disclosed is a design and a method of fabrication of a water-cooled, electronic cold plate, with almost limitless water channel complexity.

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This is the abbreviated version, containing approximately 100% of the total text.

Copper Cold Plates with Titanium Skeleton and Tubes

      Disclosed is a design and a method of fabrication of a
water-cooled, electronic cold plate, with almost limitless water
channel complexity.

      The disclosed cold plate is a composite structure.  The water
carrying channels are defined by a thin-walled tubular structure made
of diffusion-bonded titanium sheets.  The tubular structure is
embedded in cast copper with machined surfaces appropriate for
mounting electronic components needing cooling.

      The proposed method fabricating the composite cold is as
follows:
      1.  Shear titanium sheets to the appropriate shapes.
      2.  Screen print a thin layer of a diffusion barrier material
over areas of titanium sheets not to be diffusion bonded.
      3.  Lay the titanium sheets together and diffusion bond.
      4.  Place diffusion bonded titanium sheets in press. Heat
assembly and pump argon under pressure to make the titanium assembly
ballon up and conform to the press mold.
      5.  Remove formed titanium structure from press and place in
metal casting mold.  Pour molten copper into mold and cool.
      6.  Remove cooled assembly from mold.
      7.  Finish machine the cold plate and attach hose barbs at tube
ends for water connections.

      Disclosed anonymously.