Hi
Do all coaters use the same film thickness monitor crystals? Where do people buy replacements from? Or how do they clean them?
Has anyone tried these https://uk.megatech.com/pack-of-10-crystals-au-6mhz-pe108-02 (https://uk.megatech.com/pack-of-10-crystals-au-6mhz-pe108-02)
Ok this site suggests https://www.microtonano.com/EM-Tec-quartz-crystals-for-thickness-monitor-controllers-for-vacuum-coating-systems.php (https://www.microtonano.com/EM-Tec-quartz-crystals-for-thickness-monitor-controllers-for-vacuum-coating-systems.php) two types a 6Mhz and 5Mhz with different diameters with brands using different ones as shown in table
Quote from: Ben Buse on Today at 01:42:47 AMHi
Do all coaters use the same film thickness monitor crystals? Where do people buy replacements from? Or how do they clean them?
Maybe it's too "old school" but I've always had great success using the color on polished brass method for checking carbon evaporation thickness:
https://smf.probesoftware.com/index.php?topic=1252.msg8988#msg8988