Browse Prior Art Database

Wire Wrap Platforms

IP.com Disclosure Number: IPCOM000107692D
Original Publication Date: 1992-Mar-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Lode, AT: AUTHOR

Abstract

Disclosed is a new method of wire-wrapping large pin grid arrays (PGAs) and long linear structures (an edge connector, for example) more easily and with greater success. Normal wire-wrap methods for large PGAs and long linear structures result in wiring that is: 1. Messy and difficult to inspect. 2. Problem-Prone: a. Short-producing: wires pressed against posts can have their insulation cut. b. Open-producing: the contortions required to bring wires out from the mess of other wires can break them.

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Wire Wrap Platforms

       Disclosed is a new method of wire-wrapping large pin grid
arrays (PGAs) and long linear structures (an edge connector, for
example) more easily and with greater success.  Normal wire-wrap
methods for large PGAs and long linear structures result in wiring
that is:
      1.   Messy and difficult to inspect.
      2.   Problem-Prone:
           a.   Short-producing:  wires pressed against posts can
have their insulation cut.
           b.   Open-producing:  the contortions required to bring
wires out from the mess of other wires can break them.

      "Wire-wrap platforms" allow for the progressive elevation of
the wire-wrap connections toward the middle of (or long-edge of, for
linear) large structures, so that the wires coming from inner posts
do not interfere with those from outer ones.

      There are two basic platform designs.  One is a linear platform
used for the wiring of multiple, long rows of posts (as for an edge
connector); the other is a square platform used for the wiring of
PGAs.

      A side view of a linear structure with wire-wrap platforms
would look like Fig. 1, with each platform being the same length as
the structure and one post wide (there are ten in the figure).
Alternately, each platform could be the same length as the structure
and of appropriate width (there would be four such platforms in the
figure).

      A side view of a square structure with wire-wrap...