Browse Prior Art Database

Manually Operated Vacuum Pencil

IP.com Disclosure Number: IPCOM000101791D
Original Publication Date: 1990-Sep-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Moore, G: AUTHOR

Abstract

This device addresses the problem of conveniently handling static-sensitive components (especially surface mount components) or wafers without making physical contact with the leads of the device.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 73% of the total text.

Manually Operated Vacuum Pencil

       This device addresses the problem of conveniently
handling static-sensitive components (especially surface mount
components) or wafers without making physical contact with the leads
of the device.

      By utilizing the vacuum (suction) created by an "off-the-shelf"
pipettor and a bellows-type suction cup (see the figure) an
integrated circuit or wafer can be easily handled for inspection,
testing, packaging, etc.

      Because this invention is small and lightweight, a user is more
likely to use it when a vacuum pencil is required for a specific job.
The alternative is an electric pump-type vacuum pencil that requires
access to an electric outlet and has tangle and pinch-off prone
rubber hoses to provide the vacuum at the pencil tip.  Working with
this method, the user may be prone not to use a vacuum pencil at all
and risk damaging expensive components by electro-static discharge.

      The manually operated vacuum pencil can be carried in a pocket
and into the field without any of the previous concerns.

      The manually operated vacuum pencil (MOVP) concept is simple.
Macropipettors were purchased from Cole-Parmer, a laboratory
instrument supplier, and modified by drilling and tapping the tips to
accept brass fitting and bellows-type suction cups.  The silicon
suction cups are available in various sizes, but currently only the
.250- and .500-inch models are in use.

      An interesting feature of th...