Browse Prior Art Database

Mechanical Visual Positive Location Guide Blocks

IP.com Disclosure Number: IPCOM000109684D
Original Publication Date: 1992-Sep-01
Included in the Prior Art Database: 2005-Mar-24
Document File: 3 page(s) / 95K

Publishing Venue

IBM

Related People

Chandler, WF: AUTHOR [+2]

Abstract

This article describes a device for fast and accurately positioning of cassettes on automated equipment. Cassettes are used with automatic equipment for fast processing of various products. The visible and bevel cut on the guide blocks act as a channel for correct placement of cassettes.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Mechanical Visual Positive Location Guide Blocks

       This article describes a device for fast and accurately
positioning of cassettes on automated equipment.  Cassettes are used
with automatic equipment for fast processing of various products.
The visible and bevel cut on the guide blocks act as a channel for
correct placement of cassettes.

      Products are loaded in cassettes and placed on indexing stages
for processing in automatic equipment.  Placement of the cassettes is
critical for proper function of the tool. Operators must be able to
place processing cassettes quickly and accurately on send and/or
receive stages.  Most manufacturers of automated equipment use what
is referred to as the "H-Bar", for cassette location and microswitch
sensor pick up.  The "H-Bar" on the bottom of a cassette must fit
into a slot in the send and receive stages to be properly positioned
and activate the microswitch.  The "H-Bar" is hidden from view by the
product in the cassette.  The visual and mechanical aspect of guide
blocks allow for fast and accurate placement of cassettes on
automated tools (see the figures).

      Operators are unable to place processing cassettes quickly and
accurately on send and receive stations used on automated equipment.
Most semiconductor equipment manufacturers use what is called the
"H-bar" for cassette location and microswitch sensor pickup.  The
"H-bar" configuration is molded into the raw material of the
cassettes at one end, to form the letter...