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ICP plasma etching beam etching
Thin film patterning etching

ICP plasma etching beam etching

High-density inductively coupled plasma enables rapid etching rates. This process module offers excellent uniformity, high throughput, high precision, and low-damage processing, suitable for wafers up to 200 mm in size.

  • Extensive library of metal etching processes: aluminum, chromium, nickel, platinum, etc.
  • SiOx and SiO2 etching
  • Fused quartz and quartz etching
  • Silicon etching
  • SiO2 and SiNx hard mask etching

    index

    Process Reference

    1

    2

    3

    4

    Etched Material

    PZT¹

    Pt¹

    Al²,³

    AlN

    Gas chemistry

    Ar-CHF₃-(Cl₂)

    Ar-Cl₂

    BCl₃-Cl₂

    BCl₃-Cl₂-Ar

    Etch Depth / μm

    ≤ 2.0

    ≤ 0.2

    ≤ 2.0

    ≤ 2.0

    Etch rate / nm/min

    >100

    >100

    >200

    >150

    Mask type

    PR

    PR

    PR

    PR

    Selectivity

    >0.7:1(PR)

    >10:1 (Pt)

    >0.5:1 (PR)

    2:1 (PR)

    >0.7:1 (PR)

    >0.5 to 2:1 (Mo)⁴

    Profile / °

    >70

    >70

    >88

    >70

    Uniformity (within wafer)

    Run-to-run

    MEMS Advanced Manufacturing

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