Browse Prior Art Database

Two-Compliant-Section Pin Packaging

IP.com Disclosure Number: IPCOM000110968D
Original Publication Date: 1994-Jan-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Gruber, H: AUTHOR [+4]

Abstract

This article proposes to interconnect two separate back planes by a pin having compliant sections (TCS-PIN).

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

Two-Compliant-Section Pin Packaging

      This article proposes to interconnect two separate back planes
by a pin having compliant sections (TCS-PIN).

      This provides an assembly of back planes that allows
components, like connectors for cards, to be placed on both sides
independent of each other.  The two back planes are separated by a
spacer.  The spacer prevents contact between the connector pins
placed at the same location on both sides of the back plane assembly.
The two back planes may be interconnected at any location by the
TCS-PIN.  The compliant sections of the TCS-PIN have different
diameters.

      Presently, a back plane or board consists of many planes that
are interconnected by plated-through holes.  With the compliant pin
the solder process to assembly connectors in the back plane was
eliminated and connectors could be pressed into the back plane from
both sides.  This provided denser packaging, but connectors at the
front side would block this location for connectors on the back side.

Such packaging has the following advantages:

      Connectors on the front side of the back plane assembly do not
block this location for connectors from the back side.

      TCS-PIN connections from the front plane to the back plane can
be made at any place on the back plane assembly providing short
electrical signal paths.

      The TCS-PIN can be placed by robots driven by the drill data
for the plated-through holes for the TCS-PINs.