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XTC/3 Operating Manual
A
CRYSTAL FAIL
detected during the
DEPOSIT
state if the
Time Power
parameter (
Option
sub-screen of the
Film Parameter
display ) is set to
No
(when crystal switching is not available).
Following the
POST-DEPOSIT
states of a layer when the
DEPOSIT
state
completes in
TIME POWER
.
Any of the
ALARM
conditions listed in
above if the
Stop on
Alarms
or
Stop on Max Power
configuration is activated (
Process
sub-screen
of
General Parameter
display).
3.5.1.3 Recovering from STOP
An interrupted process can be completed (recovered) from a
STOP
without
manually reprogramming any film or process parameters. Recovery from a
STOP
(generated by an operator or any machine induced condition) requires only that the
START
command be given. If the
STOP
was generated by a machine induced
condition such as a crystal fail, that condition must be corrected before the
START
command will be accepted. The film in process at the time of the
STOP
will again
be executed from the beginning, but the displayed thickness will not be zeroed
upon reentry of the
DEPOSIT
state. Instead, the thickness accumulated at the time
of the generation of the
STOP
is used. Thickness will accumulate in the normal
fashion from that point. All processing occurs in the normal fashion from reentry of
the
DEPOSIT
state, forward.
If it is not possible to recover as described above, the process may be reset to the
beginning of layer one by issuing a
RESET
command prior to a
START
command.
The
RESET
command may be given by pressing
RESET
, through the I/O or
through the remote communications.
3.6 Special Features
3.6.1 Automating a Process
A process can be automated so that a complete process can be executed without
having to press
START
between all the layers. A process can be automated by any
of the following three methods:
Autostart Next Layer
(XTC/3M only): In the
Process
sub-screen of the
General Parameter
display, set this option to
Yes
by pressing
TOGL
.
Remote communication control: An external computer could be set up to
monitor the status of a process and issue
START
commands at desired times.
(See Chapter 5,
Remote input line. A remote input line can be activated to generate a
START
command. (See