ICP Etching System RIE-400iPC
Precision 2", 3", 4" Compound Semiconductor ICP Etching

Description

The Samco RIE-400iPC is an automated cassette-loading Inductively Coupled Plasma (ICP) dry etching system optimized for compound semiconductor pilot lines, specialized foundries, and advanced research facilities. Engineered for substrates up to 4-inch (100 mm), the system combines automated vacuum cassette transport with high-density plasma generation to deliver anisotropic, low-damage etching across GaN, GaAs, SiC, and InP material systems.

Key Features and Benefits

  • HSTC™ High-Power ICP Source: Integrates Samco’s proprietary HSTC™ (High-Density Surface Wave Inductively Coupled) ICP source for efficient, stable high-RF power coupling, generating high-density plasma under demanding high-power etching regimes.
  • ESC & Helium Backside Temperature Control: Combines an Electrostatic Chuck (ESC) with backside Helium gas cooling to maintain precise, uniform substrate temperatures, preventing photoresist degradation and thermal mask erosion during aggressive etching.
  • Direct-Coupled Vacuum Exhaust Architecture: Connects the vacuum exhaust system directly to the process chamber, securing a broad process window that spans from low-flow/low-pressure to high-flow/high-pressure regimes for wide process recipe flexibility.
  • Direct Single-Wafer Transport (Ø2", Ø3", Ø4"): Supports automated carrier-tray-less single-wafer transfer for 2-inch, 3-inch, and 4-inch substrates, eliminating carrier-related particle generation and improving operational efficiency.
  • Real-Time Endpoint Detection Options: Accommodates optional Optical Emission Spectroscopy (OES) or Laser Interferometry endpoint monitoring systems for precise real-time etch depth control and automatic process termination at heterojunction interfaces.

Applications

  • InP Ridge Waveguide Patterning: Precision vertical sidewall etching for InP-based semiconductor lasers and photonic integrated circuits (PICs).
  • InP Grating Formation: Fine-pitch, nanometer-scale profile control for Distributed Feedback (DFB) laser gratings.
  • GaAs VCSEL Mesa Etching: Anisotropic mesa structure patterning with high mask selectivity and smooth sidewall morphology for GaAs-based VCSELs.
  • High-Selectivity GaN/AlGaN Etching: Highly selective etch processing for AlGaN/GaN heterostructure layers with minimal sub-surface damage.
  • GaN Gate Recess Etching: Low-damage, precise depth control for E-mode (normally-off) GaN HEMT gate recess fabrication.
  • Vertical GaN Power Device Trench Etching: High-aspect-ratio trench formation with controlled sidewall profiles for vertical GaN power transistors.
  • SiC MOSFET Trench Etching: High-rate, smooth trench patterning for next-generation SiC trench MOSFETs.
  • Dielectric Etching (SiO2 / SiNx): Anisotropic, high-selectivity dry etching of dielectric hard masks and insulating thin films.
  • Metal Etching: Residue-free dry etching of metallic electrode layers, contact pads, and hard mask metals.

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