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Model 880 DEPOSITION CONTROLLER
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SECTION 2.XX
e page 24 of 275 ^
In terms of Model 880 usage, the simplest configurations would be either in sequencing mode with: 1
crystal, 1 oscillator, 1 process, 1 film, 1 material, and 1 deposit or in non-sequencing mode with: 1 crystal,
1 oscillator, 1 film, 1 material, and 1 deposit. Also for these simplest configurations, in either sequencing
or non-sequencing mode, a single sensor input would be employed along with a single control voltage
output (controls power to that which is generating the evaporant). The simplest means of evaporant stream
generation would be resistive heating.
In terms of unit hardware, this translates into an Model 880 with 1 sensor card, 1 output card and 1
input card.
In terms of unit software (menu programming), a specific film is either called by a process (in
sequencing mode) or called directly (in non-sequencing mode). The film, in turn, calls out a specific sensor
map. Except for co-deposition applications, which will be explained elsewhere, only 1 process, only 1 film,
only 1 map can be active (running) at a single point in time. A process can call a different film at each of
its steps (or layers) up to 99 steps.
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