The table top system has a cylindrical chamber (250mm ID) and is based on a UHV conflat flange platform. The chamber has internal welds and is polished to minimise outgassing. Base ports are confocal as standard allowing a wider variety of deposition sources to be employed than with non-confocal arrangement. Numerous ports are provided for gauges and analysis tools
Sample Loading. In the basic system, sample entry can be made through a quick-load flange (o-ring sealed). For true UHV applications it is necessary to use a sample entry load-lock. Our load-lock uses a magnetically coupled linear/rotary transfer arm to transport samples to the main chamber.
Sample Table.The sample table/manipulator is configured as standard for 2" (52mm) samples but can be modified for samples up to 4" in diameter or multiple smaller samples.
- Variable speed (2-20rpm) sample rotation
- DC or RF sample table bias (DC in our case)
- Sample heating up to 800°C
- Z-shift (0-100mm)
The sample cradle in heated sample holders is manufactured of refractory materials to maintain system purity.
Sputtering Sources. The base ports can accommodate several sputtering sources. We can supply 1-3" magnetron sputtering sources for DC or RF operation. The sources can be equipped with standard or high-strength magnets and additionally balanced or unbalanced magnet sets. The CUSP magnetron sputter sources are the only commercially available sputter sources that are deep UHV (1x10-11Torr) compatible sources. The construction contains no elastometer seals and can be baked to 250°C. The feature of UHV compatibility enables ultra pure sputter deposition that eliminates unintentional oxidation and nitridation of materials.