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Browse Prior Art Database

Substrate Carrier Assembly for Robot Operations

IP.com Disclosure Number: IPCOM000101419D
Original Publication Date: 1990-Aug-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 84K

Publishing Venue

IBM

Related People

Buchmann, AH: AUTHOR [+4]

Abstract

A mechanical carrier assembly is described to enable robotic high speed loading and unloading of substrates. The mechanism is designed to provide an extra long travel for output handlers so as to provide rapid sorting of tested substrates into five different output bins.

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

Substrate Carrier Assembly for Robot Operations

       A mechanical carrier assembly is described to enable
robotic high speed loading and unloading of substrates.  The
mechanism is designed to provide an extra long travel for output
handlers so as to provide rapid sorting of tested substrates into
five different output bins.

      The carrier assembly, as shown in the figure, consists of
Y-axis subassembly 1 supported by left and right rail subassemblies 2
which can travel from the front to the backside of the carrier
assembly.  X-axis subassembly 3 is supported by the Y-axis
subassembly 1 and travels from the left to the right hand side of the
carrier assembly.  Both the X and Y axes are operated by linear DC
motors (not shown).  Gripper subassembly 4 is suspended from the
X-axis subassembly 3 and is capable of an up/down Z axis-motion.
Gripper subassembly 4 is capable of both gripping a single part as
well as an entire tray.

      When a host processor communicates instructions to control
circuitry (controller not shown), all X and Y positions and and their
status can be read back across a single RS232 communication line.
Digital output bits from a host processor to the controller will
cause gripper assembly 4 to raise or lower Z-axis gripper subassembly
4, open or close part (substrate) gripper fingers (not shown) and
open or close tray gripper fingers (not shown) [*].  Similarly,
digital input bits are returned from the controller to the processor
for raised or lowered Z positions...