Thermco Bank one containing ThermcoNitride.
Silicon nitride (or nitride or Si3N4) is deposited at moderately high temperatures (~800C) and low pressure (~250 mtorr), using dichlorosilane (SiCl2H2) and ammonia (NH3). This furnace handles wafer up to 6 inch.
Stociometric and low stress (~150mPa) programs available