Browse Prior Art Database

Cap Puller for Integrated Circuit Modules

IP.com Disclosure Number: IPCOM000036110D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 57K

Publishing Venue

IBM

Related People

Kolan, H: AUTHOR [+2]

Abstract

This article describes a cap puller which provides a simple and reliable means of removing caps during module rework.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 74% of the total text.

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Cap Puller for Integrated Circuit Modules

This article describes a cap puller which provides a simple and reliable means of removing caps during module rework.

Figs. 1, 2 and 3 offer a series of schematic drawings to show the operation of the cap puller. In Fig. 1, the cap puller 10 is positioned over the cap 12 and heat sink 14 of the module assembly. The Vleir spring plungers 20, 21, 22, 23 (22 and 23 not shown) of the cap puller 10 rest on the containment frame 18 which is slipped over the heat sink 14 and cap 12. The heat sink 14 and cap 12 sit on the ceramic substrate 16 of the module assembly. The module assembly consists of the ceramic substrate 16, the cap 12, and the heat sink 14.

In Fig. 2, the cap puller 10 is set down on the module assembly. Vleir spring plungers 20, 21, 22, 23 are in a retracted position. In this position, holes in the cap puller 10 are aligned with air gaps in the heat sink 14. Two short screw pins 24, 25 are inserted in the holes on either side of the cap puller 10 to attach the cap puller 10 to the heat sink 14. Optionally, a longer pin can be inserted through

(Image Omitted)

the holes in the cap puller 10 and the heat sink 14. However, the use of a longer pin may cause damage to the heat sink 14 as it is threaded through the thermal fins on the heat sink 14. After screw pins 24, 25 are mated with the heat sink 14, the Vleir spring plungers 20, 21, 22, 23 are set in the extended position against the containment frame 18, thus prov...