Browse Prior Art Database

Advanced Indirect Cooling using Square Pistons

IP.com Disclosure Number: IPCOM000114573D
Original Publication Date: 1995-Jan-01
Included in the Prior Art Database: 2005-Mar-29
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Agonafer, D: AUTHOR [+4]

Abstract

A method of improving the cooling capacity of indirect cooling scheme and manufacturing technique for suggested scheme is disclosed.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 61% of the total text.

Advanced Indirect Cooling using Square Pistons

      A method of improving the cooling capacity of indirect cooling
scheme and manufacturing technique for suggested scheme is disclosed.

      A method of improving the cooling performance of an indirect
cooling device such as a TCM is disclosed.  This invention utilizes
specific non-circular pistons to achieve cooling performance
enhancements, and describes a manufacturing methodology for the same.

      Geometry plays a key role in indirect cooling methods such as
the TCM.  In such cooling technology, cooling performance
enhancements can be accomplished by increasing the surface areas,
decreasing interface gaps, or both.  Specific to the TCM, one way of
increasing the surface area is to use a geometry with more surface
area than a round piston.

      The proposed geometry is shown in the Figure.  Fig. 1 compares
a typical round piston (101) with a square piston (102) both layed
over a typical substrate (103) with a regular arrangement of chips
(104).  Both arrangements use a same chip-to-chip spacing.  The
comparison shows the chip covering advantage of the square piston
over the round piston.  It also shows the relative piston heights
needed for a fixed piston-to-hat (105) interface areas.  There are
several suitable manufacturing techniques for cutting precision
square or rectangular holes and inserts.  In one method, displayed in
Fig. 2, an array of square through holes is readily formed to ne...