CNC Machining for Semiconductor Equipment

Ultra-precision components for semiconductor equipment makers. Vacuum chamber flanges, optical encoder mounts, polarization controllers, lens barrels, and thin-wall stainless steel parts.

KGL precision CNC machining facility: five-axis milling and turn-mill machines in the shop and Zeiss and Hexagon CMMs in the inspection room

Inside the KGL shop floor · tour our 6,000+ m² facility

Semiconductor Equipment Parts

KGL machines ultra-precision components for semiconductor equipment manufacturers. Our 5-axis Mazak centers and Hexagon CMM (0.0015 mm accuracy) deliver the geometric precision and surface finish that semiconductor applications require.

Typical Parts

  • Chamber components and shielding
  • Electrode and focus ring components
  • Precision mounting plates
  • ESD-sensitive components in conductive plastics

Materials

Aluminum (6061-T6, 7075), stainless steel (316L, 17-4PH), PEEK, PEEK1000, PEI, ESD225, ESD420, and conductive nylon.

Cleanliness and Packing

Chamber components, fixtures and vacuum-adjacent parts are deburred, ultrasonically cleaned, dried and sealed in PE bags; nitrile-glove handling and cleaning records ship with the inspection report. Thin-wall geometries are CMM-verified on Hexagon and Zeiss machines before release, so flatness and coaxiality arrive as documented values, not promises.

Typical parts: 10 part families with tolerances and typical order sizes.

Process Coverage for Semiconductor Programs

Semiconductor equipment parts combine tight geometry with cleanliness requirements. We machine them on 11 five-axis Mazak centers for optical and vacuum geometries, with turning cells for lens barrels and sealing joints, and a dedicated support cell for wire EDM features. Chamber-adjacent parts are deburred, ultrasonically cleaned, dried, and sealed in PE bags, with nitrile-glove handling and cleaning records shipped alongside the inspection report.

Tolerances, Materials and Documents

Feature classStandard capabilityVerified by
Alignment and mounting interfaces±0.005 mmCMM report per lot
Thin-wall flatness and coaxialitywithin 0.01 mmHexagon / Zeiss CMM
Optical seating facesRa 0.4 or betterSurface roughness records
ESD-grade plastics machiningESD225 / ESD420, conductive nylonMaterial certificates

Materials in regular production include 6061-T6 and 7075 aluminum, 316L and 17-4PH stainless steel, titanium, PEEK, PEI, and ESD-grade plastics. Documentation packages cover material certificates, FAI, and batch dimensional reports for your equipment qualification files.

Questions buyers ask before the first order

How thin can you machine stainless steel walls?

For the world's leading lithography equipment maker we delivered SUS304 parts with 0.3 mm walls in a 150 x 45 x 6 mm envelope, with flatness, position and coaxiality within 0.01 mm.

What is your measurement accuracy?

Hexagon CMMs with 0.0015 mm accuracy verify every critical dimension, backed by 40+ precision inspection instruments.

Do you machine ESD-safe plastics?

Yes. ESD225, ESD420, conductive nylon, PEEK and PEI for ESD-sensitive components.

Can you reach Ra 0.4 surface finish?

Yes. The referenced SUS304 parts were delivered at Ra 0.4 um. Grinding and finishing are sequenced in house, so the datum chain is never broken.

Do you sign NDAs before reviewing drawings?

Yes. A standard mutual NDA is available before any drawing or specification is shared.

What is the lead time for semiconductor equipment parts?

Quotes in 24 hours; prototypes typically 7 to 15 days, longer for multi-process routes that add grinding or EDM.

Engineering reference behind this page

The tables and bands the sections above rest on, kept by the same engineering team that runs the work.

Full index, including material grades and surface finish data: engineering reference hub.

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