Browse Prior Art Database

Board-To-Board Connector Assembly

IP.com Disclosure Number: IPCOM000102814D
Original Publication Date: 1990-Feb-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 50K

Publishing Venue

IBM

Related People

Asselta, JA: AUTHOR [+2]

Abstract

To eliminate relatively long circuit connections, which decrease machine performance, boards can be arranged in back-to-back configurations, and pre-wired circuit interposers inserted between the boards, to thereby provide short electrical connections between the boards.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 75% of the total text.

Board-To-Board Connector Assembly

      To eliminate relatively long circuit connections, which
decrease machine performance, boards can be arranged in back-to-back
configurations, and pre-wired circuit interposers inserted between
the boards, to thereby provide short electrical connections between
the boards.

      As shown in the drawing, a first circuit board 1 and a second
circuit board 3, are aligned in a back-to-back relationship, with a
circuit interposer 5 between the two boards.  The interposer is
provided with appropriate connecting cables and planar connections to
carry signals between the two boards.  The interposer is pre-wired
and pre-tested, before its connection to the circuit boards.
High-speed cable is the preferred type of wire connection.

      In future systems, the time of flight of the electrons in a
circuit is becoming critical to the desired performance of the
machine.  This time of flight is directly proportional to the length
of wire and type of wire used to transmit the signals.  The best type
of wire is high speed cable (better than board wire), so this
disclosure uses high-speed cable to transmit critical signals in a
very short and easily manageable fashion.

      Two boards in a system contain critical modules and cable
connections.  These two boards, in order to get them as close
together as possible, are placed back to back in the system with the
cable connections coming directly off the back of the boards in the
mod...