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C H A P T E R 4
7/26/00
INTEGRA Operations Revision A
4-1
20-0200-231 (CR), 20-0200-232 (Std), 20-0200-251 (CD)
4
P R O C E S S D E S C R I P T I O N
INTRODUCTION
This chapter describes the step by step process of cleaning a wafer. Each
major functional component in the Integra is examined as the wafer
travels through the system. The description follows the wafer from
station to station beginning with the GEM controlled Input Robot.
WAFER/INPUT ROBOT (ARM)
GEM I
NTERFACE
Input and Output Robot arm interfaces are controlled by GEM
instructions/messages. Unique Integra GEM messages are found in
Chapter 10, ALARMS.
I
NPUT
R
OBOT
The Input Robot sequentially transfers wafers (one at a time) from
the Chemical Mechanical Polisher (CMP) to the Input Station of the
Integra cleaner. The Input Robot is under the control of GEM
messages issued by the CMP host system. Integra communicates
directly with the CMP host system and
does not
send/receive GEM
messages to/from the Input Robot.
I
NPUT
S
TATION
D
OOR
(C
ASSETTE
) S
ENSOR
Using
GEM
messages from the
CMP host, the
ROBOT PRESENT
(CASSETTE) SENSOR
determines that the Input Station is empty
(no
wafer or Input Robot arm [paddle] is present), and then closes the
Input Station (Wafer) door to preserve the cleaning environment. Input
Station sensor activity is displayed in the
INPUT STATION I/O SCREEN.
INPUT STATION
P
LACING
W
AFER
I
N
I
NPUT
S
TATION
Wafers can be loaded into the Input Station through either a side
(standard) or front (option) mounted Input Station (wafer) door.
Once the Input Station (wafer) door opens, the Input Robot carries a
wafer to the Integra cleaner, places it on the Input Station’s conveyor,
and releases the vacuum which holds the wafer. The Input Robot
arm or paddle lowers, then retracts through the Input Station door.
When the arm (paddle) is fully retracted, the Input Station’s
conveyor moves the wafer away from the door into the process
position, the Input Station (wafer) door closes, and the DI spray rinse
starts. The wafer remains in the Input Station until Brush Station #1
is empty. Input Station sensor activity is displayed in the
INPUT
STATION I/O SCREEN
.
Содержание Synergy Integra
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