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NanoFab Tool: Reactive Ion Etcher 790 Nitride Left

Reactive Ion Etcher 790 Nitride Left

This PlasmaTherm 790 reactive ion etcher (RIE) is a parallel plate plasma etching system which uses fluorocarbon and oxygen gases to etch silicon nitride thin films. The large chamber can accommodate substrates ranging from 200 mm diameter wafers down to small pieces.


  • Radio frequency (RF) power source: up to 500 W at 13.56 MHz.
  • Process Gases: Ar, O2, CF4, CHF3, N2 and SF6
  • Reactive ion etching of silicon nitride.

Usage Information

Supported Sample Sizes

  • Maximum wafer diameter: 200 mm (8 in).
  • Small pieces supported: Yes.

Typical Applications

  • Anisotropic silicon nitride thin film etching.
Created March 29, 2022, Updated October 6, 2023