Browse Prior Art Database

Pneumatically Actuated Zero Insertion Force Socket

IP.com Disclosure Number: IPCOM000110464D
Original Publication Date: 1992-Nov-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 1 page(s) / 65K

Publishing Venue

IBM

Related People

Ramundo, T: AUTHOR [+2]

Abstract

Disclosed is a technique to pneumatically actuate zero insertion force (ZIF) sockets. Moreover, the technique disclosed will facilitate the actuation of densely populated ZIF sockets and is clean room compatible.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Pneumatically Actuated Zero Insertion Force Socket

      Disclosed is a technique to pneumatically actuate zero
insertion force (ZIF) sockets.  Moreover, the technique disclosed
will facilitate the actuation of densely populated ZIF sockets and is
clean room compatible.

      Referring to Figure 1, an array of expansible tubing 16 is
connected to a manifold 18 which is supplied with compressed air
through nipple 17.  By applying a pneumatic pressure to nipple 17,
the expansible chamber tubing will expand and press against pusher
plate 5 which is mounted on the edge of the cam plate 6, thereby
laterally displacing the cam plate 6 and pinching ZIF connectors and
placing them in their gripping position.

      It has been found that a Teflon derivative tubing 1/4 inch in
diameter will exert approximately 80 pounds of force per tubing
section, thereby giving the unit a total of 700 pounds of force which
is required to pinch the ZIF connectors.  This tubing exhibits high
flexural strength, is clean room compatible, and is reliable to at
least 200,000 cycles at elevated temperatures (170~C).

      Figures #2 & #3 depict unit in cross-section as it would appear
in the open and closed ZIF position, respectively.

      Disclosed anonymously.