Stainless Steel SUS400 CNC Machining Parts For Semiconductor
Testing Equipment
Product Overview:
This product is made of martensitic stainless steel SUS400, through
high-precision CNC machining technology, designed for semiconductor
test equipment (such as probe stations, sorting machines, test
sockets, etc.) designed for precision structural components. With
high hardness, corrosion resistance, low particle precipitation and
other characteristics, to meet the semiconductor test environment
on the material stability and cleanliness of the stringent
requirements.
Product Details
| CNC Machining Aspect | Specific Application in Semiconductor Testing Equipment Parts | Technical Details & Benefits |
| Material Machining | Machining SUS400 series stainless steel (e.g., SUS410, SUS430) for
components like probe holders, microfluidic fixtures, and sensor
mounts. | - High hardness (170–210 HB) of SUS400 requires carbide or ceramic
tooling.
- Coolant-controlled machining prevents work-hardening and thermal
distortion. |
| Precision Geometry | Creating complex internal features (e.g., micro-channels, probe
slots, threaded holes) and ultra-fine external profiles. | - Tolerances as tight as ±0.005 mm for critical dimensions (e.g., probe alignment holes).
- Five-axis CNC enables multi-angle machining without re-clamping. |
| Surface Finish Optimization | Achieving mirror polish (Ra ≤ 0.2 μm) on fluid contact surfaces and
low-roughness exteriors to minimize particle adhesion. | - Diamond-tipped end mills for finish machining.
- Electrolytic polishing (EP) post-CNC to refine surface texture
and meet ISO 14644-1 Class 5 cleanliness standards. |
Core features
High precision machining
Tolerance up to ±0.005mm to meet the stringent assembly
requirements of semiconductor test equipment
5-axis CNC machining ensures precise moulding of complex geometries
(e.g. microvias, precision slots).
Excellent material performance
SUS400 stainless steel (12-14% chromium content), both:
Hardness HRC 28-35 (adjustable by heat treatment)
Chemical resistance (weak acid/alkaline environments)
Magnetically conductive (suitable for electromagnetic shielding
applications)
Customisation Service
Support Drawing/OEM OEM, offer:
Special surface treatment (passivation, mirror polishing)
Rapid prototyping of small quantities (5-7 days delivery)
Typical Application Scenarios
- Probe card frames and calibrators
- Test Socket Metal Housing
- Wafer Suction Cup Positioning Assemblies
- Sorting machine wear guides
Why consider us?
No mold fees for aluminum profiles – We absorb these costs to reduce your expenses.
No welding fixture charges – Another way we help you save.
Combing different Producing Technology – Outsource Aluminium Profile, Shaped Metal, Metal Casting
materials, MIM materials, then CNC machining to lower the unit
price.
Cost-competitive production – Our lean manufacturing and expertise allow us to deliver
high-quality parts at favorable prices.
One-Stop Factory – Our ISO9001 IATF16949 Certificated factory provide laser
cutting, bending, Stamping, CNC Machining, Sheet Metal Working,
welding, Assembling in one factory, ensure stable quality control.
