Browse Prior Art Database

"Twist" Pogo Pin for Improved Electrical Connection

IP.com Disclosure Number: IPCOM000120051D
Original Publication Date: 1991-Mar-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Owens, GR: AUTHOR [+2]

Abstract

As illustrated in the figure, a traditional pogo pin is redesigned to add rifling 2 to both the pin 3 and the receptacle 4 to cause the pogo pin to twist as it compresses into the receptacle. This twisting action will cause better cutting capability in item 1 at lower contact forces.

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"Twist" Pogo Pin for Improved Electrical Connection

      As illustrated in the figure, a traditional pogo pin is
redesigned to add rifling 2 to both the pin 3 and the receptacle 4 to
cause the pogo pin to twist as it compresses into the receptacle.
This twisting action will cause better cutting capability in item 1
at lower contact forces.

      This device has the following unique features:
1.   A new pogo pin design that anyone using bed-of-nails fixtures
(this means everyone building card assemblies) can use.
2.   Adding rifling to the pogo pin and receptacle to cause it to
twist and, therefore, cut better as contact is being made.
3.   An improved electrical contact using pogo pins at lower forces
than before.
4.   An improved reliability contact using pogo pins at lower forces
than before.
5.   The capability of probing all the pins of high I/O count modules
while minimizing the damage potential from the pogo pin contact
forces.
6.   The capability of using other contact geometries to optimize
contact for different styles of component leads, bare solder pads,
etc.
7.   Capability of using bumps instead of rifling on the pogo pin
section.  This would potentially be easier to manufacture.  The
rifling would then still be required for the receptacle.
8.   Capability of using bumps instead of rifling on the receptacle
section.  This would potentially be easier to manufacture.  The
rifling would then still be required for the pogo pin.