Digital Thickness Monitor Assembly
Digital Thickness Monitor will be used to monitor the thickness of the thin film during evaporation / sputtering / coating
It consists of the following main items
| Measurement | Transducer limited typically 5,000 µg/cm2 as much as 20,000 µg/cm2 |
| Rate Display | 3 digit LED Auto Ranging 0.00 to 999 Å/Sec |
| Thickness Display | 4 digit LED Auto Ranging 0.000 to 999.9 K Å |
| Update Rate | Automatically varied to 4 to 5 update / sec |
| Static Thickness Rate | 1 Å @ Minimum update resolution |
| Input Parameter Acoustic | Tooling factor, density and acoustic impedance readout directly in angstrom |
| Film No. Parameters | Allows input for upto 100 films |
| Tooling Factor | 1.0 to 999.9% |
| Film Density | 0.800 to 99.99 gm/cm3 |
| Film Acoustic Impedance | 5.000 to 99.99 x 10 gm/cm-sec |
| Shutter Control | Dedicated Relay Internal 3 Amp fuse protection two relays |
| Thickness Set Point | 0.000 to 999.9 K Å shutter closes when displayed thickness equals or exceeds set point |
| Start Control | Zero Thickness and Opens Shutter |
| Stop Control | Close Shutter |
| Shutter Position Indictor | LED On indicates shutter relay is activated |
| Crystal Compatibility | 6 MHz |
| Crystal Test and Display | Type of Crystal being used |
| Crystal Health Analogue | Percentage of Crystal life remaining |
| Output | 0 to +5 ±.25 V full scale corresponding to last 2 or 3 digits of selected display |
| Output Control | Rate of thickness select. Decade selects for conversion of last 2 or 3 digits |
| Self Test | Automatic Detection and Indication of Oscillator failure, power failure, power line failure and internal failure (thickness monitor) |
| Power Requirement | 230 V AC ± 10% ; 50 Hz |
| Approximate Size in mm | 220 (W) X 230 (Depth) x 93 (H) |
| Operating Temperature | 0 to 450 C |
Digital Thickness Monitor
Water Cooled Crystal Holder with Feedthrough and BNC Cable
Digital Thickness Monitor with Oscillator Box, Cables and Crystal Holder