Industries · Semiconductor
Semiconductor parts, cleaned and documented.
We machine components and sub-assemblies for semiconductor equipment, clean and double-bag them to a published procedure, and ship a CMM report in every box. Engineering and inspection are in Singapore; machining is at plants we qualified and audit.
Why we lead with cleanliness
A part machined correctly and packed badly is a scrapped part.
In your process, a particle that would be invisible on an automotive bracket is a yield problem. Most machine shops treat cleaning as the last ten minutes of the job — a rinse, a bench, a bag from the roll by the door. That is where the contamination comes from, and it is not visible on an inspection report.
So we made it a documented process step with its own record, and we published it. You can read it before you send us anything, and hold us to it afterwards.
DFM comments on your drawings, before you commit
Quote (one business day) with milestone dates included
Published cleaning stages, each with a stated purpose
Guaranteed tolerance — 50 µm, across the envelope
What we make for this sector
Part families we quote, and what usually drives the price.
The right-hand column is the thing to talk to us about at DFM. It is almost always where the cost and the risk actually sit.
| Family | Typical materials | What usually drives cost |
|---|---|---|
| Vacuum and chamber components | Aluminium 6061, 6082 · stainless 304, 316L | Flatness and surface finish on sealing faces |
| Gas and fluid delivery hardware | Stainless 316L · Hastelloy | Internal cleanliness, burr-free bores |
| Wafer handling and end effectors | Aluminium · titanium · engineering plastics | Low particulate, no contaminating finishes |
| Fixtures, jigs and test tooling | Tool steel · aluminium · stainless | Repeatability and hardened wear faces |
| Sub-assemblies and kits | Mixed | Assembled, cleaned and kitted to your BOM |
Tolerance and verification
Three tiers, because one number would be a sales figure.
Most suppliers publish a single tolerance — usually their best result ever achieved, on one feature, once. That tells you nothing about what arrives on a Tuesday. Here is how we actually think about it, so you can make the cost trade before you finalise the drawing.
| Tier | Tolerance | µm | What it costs you |
|---|---|---|---|
| Guaranteed | ±0.05 mm | 50 | Held as a matter of course across the envelope. Quoted without a yield allowance. |
| Held at ~95% first-pass | ±0.03 mm | 30 | Achievable on qualifying features. We quote a small yield allowance rather than pretending it is free. |
| By arrangement | ±0.01 mm | 10 | Possible, but both machining and verification cost rise steeply. Reviewed feature by feature at DFM before we commit. |
The middle tier is the one worth reading twice. A shop that quotes ±0.03 mm as if it were free is either absorbing the scrap quietly or is about to have a conversation with you about it later. We would rather have that conversation at quote stage.
| Method | What it covers |
|---|---|
| CMM | Dimensional and geometric verification. The report ships with every order, at no extra charge. |
| Surface roughness | Ra verification against drawing callouts, down to Ra 0.4 µm. |
| Optical comparator | Profile and small-feature checks where a probe cannot reach. |
| Visual | High-intensity light inspection before cleaning and again before bagging. |
What arrives
What is in the box when it reaches your dock.
The parts, double-bagged
Heat-sealed inner and outer bag. The outer bag comes off at your airlock; the inner bag is opened inside your clean area, not before.A CMM report against your drawing
Your balloon numbers, our measured values, the instrument used. Written so your incoming inspection can accept the parts without phoning us.CMM inspection report with every shipment, at no extra charge
The cleaning record
Which procedure revision was run, by whom, and the rinse verification result. The evidence behind the claim, not just the claim.Material certification
Mill certificates traceable to the heat or lot, where your drawing or your quality agreement calls for them.
Questions buyers ask us
The things a supplier audit asks first.
Do you operate a cleanroom?
No. We do not operate a classified cleanroom and we do not claim an ISO class for our packing environment. Parts are cleaned and double-bagged to a written procedure that we will send you before you place an order, so you can judge it against your own incoming requirements rather than taking a badge on trust.
What tolerance can you hold?
Three tiers, and we quote against them honestly. ±0.05 mm (50 µm) is guaranteed across the envelope. ±0.03 mm (30 µm) is held on roughly 95% of qualifying features first pass, so we quote it with a small yield allowance rather than pretending it is free. ±0.01 mm (10 µm) is possible, but machining and verification cost both rise steeply and we review it feature by feature at DFM before committing.
Do you provide a CMM report?
Yes, on every shipment, at no extra charge. It carries your balloon numbers, our measured values and the instrument used, so your incoming inspection can accept the parts without phoning us. Surface finish is verified against drawing callouts down to Ra 0.4 µm.
Can you work to our cleaning and packaging specification instead of yours?
Yes, and this is the normal case for equipment makers who already have a spec. Send it with your drawings at RFQ. If there is a step we cannot meet in-house we will tell you at quote stage and propose how to cover it, rather than discovering it at first article.
What documentation ships with the parts?
A CMM report against your drawing, a cleaning record, and the packing detail. Material certificates and first-article inspection reports where the job calls for them. Included as standard, not quoted as an extra.
Where is the machining actually done?
Engineering, supplier qualification, inspection and assembly are ours in Singapore. Machining is executed by a manufacturing partner we qualified and audit, operating since 1980 across three plants and holding IATF 16949 and AS9100D among others. Those are our partner's certificates, not ours — we are happy to discuss the arrangement in detail under NDA.
Do you hold ISO 9001?
Your parts are machined under an ISO 9001:2015 certified quality system — our manufacturing partner holds it, together with IATF 16949 and AS9100D. HsquaredTech's own ISO 9001, scoped to what we do in Singapore (engineering, supplier qualification, incoming inspection and assembly), is in progress. We state both, because supplier certificates do not transfer up the chain and your audit will check.