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Semiconductor Equipment

Vacuum-compatible couplings and clean-environment transmission components for wafer-handling and inspection equipment.

Semiconductor capital equipment has the tightest cleanliness requirements of any industry we serve. Particles measured in nanometers can ruin a wafer worth more than the entire transmission assembly. Every part we ship to this vertical is degreased, electroless-nickel or hard-anodized coated, and packed in cleanroom-friendly packaging.

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What we ship

Parts we make for semiconductor equipment.

Vacuum-compatible bellows couplings

For vacuum-cluster wafer transfer — 10⁻⁶ Pa rated bellows

Wafer-handling timing belt pulleys

Hard-anodized AL7075, custom-bore, sealed packaging

Inspection-stage gear shafts

Class 5 ground, electroless-nickel, encoder-bore concentric

Clean linear gear racks

Stainless racks for atmospheric XY stages

Particle-free locking assemblies

Stainless WK-series, sealed packaging

Wafer-handling robots — both atmospheric and vacuum-cluster — need extremely low-particulate transmission. We ship bellows couplings that hold vacuum, ball-bearing-grade ground shafts with electroless-nickel finish, and hard-anodized aluminum timing belt pulleys for atmospheric stages.

For inspection equipment (lithography stages, wafer-inspection metrology), we ship Class 5 ground gears with bore concentricity ≤ 0.005 mm so the encoder feedback loop sees zero mechanical noise.

Standard packaging is vacuum-degreased, sealed in anti-static bags, lot-coded for incoming QC. We are not a Class-1 cleanroom facility, but we ship parts pre-qualified for downstream cleanroom acceptance.

Products this vertical buys

Linked to full product specs.

Each card opens the product detail page with full capability matrix, materials, and standards.

Stainless gears

SUS440C ground gears with anti-particle surface

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Bellows couplings

Vacuum-compatible, 10⁻⁶ Pa rated

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Hard-anodized pulleys

AL7075 with Type III anodize, sealed packaging

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Stainless racks

Atmospheric XY-stage drives in SUS304 / 420

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Stainless locking assemblies

Particle-free, sealed-packaging WK series

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Engineering requirements

What makes semiconductor parts different.

Cleanliness

Vacuum-degreased, sealed in anti-static bag, lot-coded

Low-outgas materials

SUS, hard-anodized aluminum, electroless Ni — no painted / oiled surfaces

Vacuum-rated bellows

10⁻⁶ Pa welded bellows couplings for vacuum-cluster handlers

Encoder-grade concentricity

Bore ≤ 0.005 mm to pitch diameter for low-jitter feedback

Particulate report

Surface finish documented; optional ISO 14644-compatible packaging

Customers

Active semiconductor customers.

A selection of internationally known names — the full list lives where it matters, in our shipping records.

HITACHI
Huawei (HiSilicon)

Case studies

Representative outcomes.

10⁻⁶ Pa for 8,000 hours

Vacuum cluster transfer arm — bellows coupling

Welded SUS304 bellows coupling for a domestic wafer-cluster handler. Vacuum-tested in-house then shipped sealed. No leakage at 8,000-hour endurance.

Encoder noise floor < 0.5 arc-sec

Inspection-stage gear shafts

Class 5 ground gear shaft with electroless-nickel finish, mounted on a wafer-inspection rotation stage. Customer's encoder integration showed sub-arc-sec noise.

FAQ

Common questions from semiconductor buyers.

Are you a cleanroom-certified supplier?

No — Wolfer is not a Class-1 cleanroom facility. We are an ISO 9001 manufacturer that ships parts pre-qualified for downstream cleanroom acceptance: vacuum-degreased, electroless-nickel or hard-anodized surface, sealed in anti-static bag.

Can you supply vacuum-rated bellows couplings?

Yes. Welded SUS304 or SUS316L bellows, vacuum-tested to 10⁻⁶ Pa in-house before shipment, individually sealed.

Do you offer ISO 14644 packaging?

Standard packaging is vacuum-degreased + sealed anti-static bag — clean enough for most semiconductor-OEM incoming QC. ISO 14644-compatible packaging (specific glove / wipe procedures) is available on request, adds ~1 week to lead time.

Related industries

Verticals we also serve.

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Precision transmission components for surgical robots, lab automation, and diagnostic equipment — built to medical-grade traceability.

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Robotics

Joint-drive reducers, end-effector gear sets, and zero-backlash couplings for industrial and humanoid robot makers.

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Laser Equipment

Ground racks, helical pinions, and high-rigidity drive components for laser cutting, marking, and welding gantries.

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Building semiconductor equipment?

24-hour quote · engineering review within one business day · ≤ 30 days to ship after approval.

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