We machine equipment housings, locating fixtures, ported blocks and thermal plates for semiconductor tool builders. Our scope covers the mechanical component; the part’s contact surfaces and downstream cleaning route define its delivery condition.
A replacement locator, a modified enclosure and a ported block need different machining work. These are the component families we supply and the details that most often determine their fit in the equipment.
We machine the cover seat, mounting features and connector openings into the housing. Referencing the openings to the installed module avoids a cover that fits the box but obstructs its connectors.
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Slots allow initial sensor adjustment; a separate locating feature can restore the accepted position after removal. We machine both into custom brackets so the mounting design can distinguish adjustment from repeat location.
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A fixture with replaceable contact pads or locating sleeves can retain its base when the working details wear. We supply the machined base and replacement details to their individual drawings.
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Cross-drilled passages leave intersections and tool-access openings inside a block. Their position determines whether edges can be reached for deburring and which openings need an approved closure before the component is used.
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Different component heights can call for stepped contact pads rather than one flat plate. We machine these levels and mounting features; the interface material fills the remaining contact gaps in the assembled thermal path.
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A removable sleeve needs a locating diameter, a stop face and a way to extract it. Including an accessible shoulder or approved extraction feature avoids having to remove the surrounding fixture to replace one worn detail.
Discuss this componentModule changes, repeated loading and vacuum exposure create different problems. The options below show where a change to the machined component can prevent rework in the assembled tool.
A replacement sensor or actuator may perform the same job with a different mounting footprint. A separate adapter plate can preserve the equipment-side mounting references while carrying the new footprint, provided the extra joint is acceptable for stiffness and alignment.
The adapter’s two interfaces need a defined relationship. Locating features establish the module position; clearance fastener holes let the screws clamp it without forcing mismatched hole patterns together.
Check whether the installed module can leave the equipment with adjacent service lines in place. A reachable fastener is not enough if the housing blocks the direction of withdrawal.
Keep the equipment reference on a retained face or locator when the module changes. Reusing only the outside dimensions of the old bracket does not preserve the alignment of the mounted sensor.
Two tightly fitted round pins can bind if the hole spacing varies. A round-and-diamond locating arrangement is one established way to locate two holes while relieving the redundant constraint.
Replaceable contact details are useful when wear occurs at a small locating surface rather than across the whole fixture. The replacement drawing keeps the seating interface common while identifying the working geometry that may change.
A separate polymer pad can move contact away from a sharp metal edge. For sensitive workpieces, the selected polymer grade must also suit the electrical, wear and contamination requirements of that contact.
Place retaining screws and extraction access on a reachable face. A replaceable insert has little service value if its fastener is trapped beneath the installed assembly.
A blind threaded joint can trap gas behind the screw and release it slowly during pump-down. A through vent or a suitable vented fastener can address that trapped volume when the equipment design permits it.
Vent features must connect the trapped volume to the evacuated space without creating an unwanted path through the vacuum boundary. The equipment designer approves that route, and the supplied drawing stays as issued until that approval is recorded.
An inspection opening or revised drilling direction can expose an otherwise inaccessible intersection for deburring. If an opening becomes part of a sealed boundary, its closure and test requirements also change.
A scratch across a sealing track matters differently from a mark on an exterior face. Identify the sealing track so its surface requirement and protection remain local to the area that performs the seal.
Use the first parts to resolve assembly issues before committing to a repeat batch. A fit check, a process evaluation and an accepted production component have different acceptance targets.
Check module clearance, connector access and the order of assembly. A mounting position can be corrected at this stage before finishing and cleanliness evaluations are commissioned.
Use the intended contact material and final surface route when evaluating wear, cleaning or process exposure. A successful geometry check alone cannot answer those questions.
Carry the accepted component definition into later orders, including replaceable details and treatment boundaries. Keep a changed part revision distinct from spares for equipment already in service.
Heat-transfer parts benefit from conductivity, while locating parts also need predictable thermal growth. Surface cleanliness and vacuum acceptance are specified separately from these bulk material properties.
| Material reference | Parameter values | Part / stock context |
|---|---|---|
| 6061-T6 / T6511 extrusion | Thermal conductivity 167 W/(m·K) | Mounting plates and external housings; 25°C |
| C11000 copper | Thermal conductivity ≈391 W/(m·K); 101% IACS | Thermal lands and electrical contacts |
| 316L / EN 1.4404 | Modulus 200 GPa; expansion 16 µm/(m·K) | Corrosion-exposed mounts and sleeves |
| PEEK · TECAPEEK natural | Thermal conductivity 0.27 W/(m·K); expansion 50 µm/(m·K) | Insulating spacers and replaceable guides |
Typical references: Hydro Alloy 6061; Copper Development Association C11000 at 20°C; Outokumpu Supra 316L (modulus 20°C; expansion 20–100°C); Ensinger TECAPEEK natural (expansion longitudinal, 23–60°C).
We combine milling and turning around the part’s functional surfaces. Local requirements are more useful than applying the same tight specification to every exterior face.
Allowing a cutter-compatible internal radius or a local corner relief can avoid a separate sharp-corner operation. Keep genuinely required square internal corners distinct from open clearance pockets.
CNC milling servicesThe working bore, outside locating diameter and seating face must relate to the same reference axis. A tolerance on each diameter alone does not control their relationship.
CNC turning servicesA multi-face setup is useful when ports or mounting holes must stay accurately related across the block. It does not justify a complex route for a plate whose functional features are all accessible from one side.
5-axis machining optionsThe checks below address parts that fit individually but fail after assembly, treatment or installation. Each requirement should follow the surface that performs the function.
A hole pattern measured from an unused stock edge may pass inspection yet miss the equipment mount. Use the seating face and actual locating features as the relevant drawing references.
A coating changes the space available for a seal and its mating parts. Control groove dimensions in the required finished state, or retain the approved masked groove rather than coating it by default.
A tapped port can meet the drilled depth but lose usable thread at an intersecting passage. Keep the required engagement length distinct from the full drill depth and the intersection location.
A heat-transfer plate needs the correct contact height at each device as well as a suitable surface. One pad touching first can leave another device separated from the plate even when the overall thickness is correct.
We quote the specified final condition of the component. Separating sealing, locating and appearance surfaces keeps the finishing work focused on the areas that need it.
Use a defined edge break where a part contacts a workpiece or is handled. At a sealing or locating edge, excessive rounding can remove useful geometry; those edges need their own treatment.
A drawing can call for protected exterior surfaces while retaining bare contact or fitted areas. Show the boundary rather than applying a general finish note across both.
Post-coating fit is measured on the coated part. Link the affected bore, groove or seating-face check to the finished stage so the receiving team measures the same condition.
We keep mechanical fit, contamination and sealed-boundary acceptance separate. The locating-fit reference applies only where H7 is selected on the drawing.
For cleanliness acceptance, a visible-clean check, particle result and chemical-residue result answer different questions. The applicable method and limit need to be paired; a report without that pairing cannot show compliance.
| Feature / check | Parameter or reference | Acceptance detail |
|---|---|---|
| Replaceable locating sleeve | H7 bore, nominal >6–10 mm 0 to +0.015 mm | Check working bore, stop face and locator position |
| Thermal contact-step heights | 20°C standard dimensional reference | Record each contact height and its measurement condition |
| Seal groove and land | Groove width / depth (mm); Ra (µm) | Use the specified dimensions in the final coated or masked state |
| Surface cleanliness | Particle size (µm); count/cm² or residue (µg/cm²) | Identify tested surfaces, sampling method and acceptance limit |
| Sealed-boundary leak test | Leak rate (Pa·m³/s); test pressure (Pa) | Record test gas, pressure differential and agreed limit |
The 20°C reference does not set operating or bake-out temperature. Cleanliness and leak limits come from the equipment specification. References: ELESA+GANTER, DIN ISO 286 tables; NIST, Standard Reference Temperature.
We can quote machined parts for downstream cleaning. Final cleaning or specialized packaging requires an agreed process, responsible site and release records. Cleanroom classification, wafer-contact or process qualification, and customer-approved supply routes are each settled in a specific project review.
Our delivery scope can end at the machined component or at a separately agreed finishing stage. Choosing the handoff point keeps the same part from being cleaned, handled and repacked unnecessarily.
Separate components so a flange edge cannot mark the next part’s sealing face. Packaging contact points should avoid the protected functional surfaces.
Label similar-looking variants by part number and revision, with the agreed lot reference. This helps receiving staff keep replacement parts for older equipment separate from a revised build.
When your approved provider performs final cleaning, order the upstream machining condition and an appropriate transfer package. The final clean and its release record stay with that defined stage.
A sample can reveal geometry, but wear and previous repairs may have changed the original dimensions. We need an accepted manufacturing definition before making a replacement; the original drawing or mating-part measurements help resolve the missing fits.
No. Color does not define electrical behavior. Electrically modified grades have specific properties, and a grade selected for ESD control still needs to satisfy any separate workpiece-contact or contamination requirement.
Yes, if the drawing’s acceptance dimensions are defined for that inspection condition. The design must still account for the operating condition, since hot clearance follows the expansion of both parts at temperature.
No. Flatness, surface texture and freedom from a scratch crossing the sealing track are each confirmed by their own check. Those are separate surface or dimensional checks; the seal’s required performance may also need a specified assembly test.
A material change affects mass, thermal expansion and heat flow as well as strength. Those differences matter on a moving bracket or a mount that changes temperature in service. Keep the required alignment and load conditions in the comparison; the same dimensions do not make the materials interchangeable.
Define whether the test covers the bare component or an assembled connection, including which ports are closed and which seals or fittings are installed. The test fixture and connections can affect the result, so the delivery scope should match the configuration being accepted.
No. Groove geometry also depends on how the seal is compressed, its mating clearance and the sealing arrangement. A groove copied only from the free O-ring dimensions can leave the wrong compression or fill. Use the approved gland drawing for the selected seal and connection.
A fit check before the controlled final-cleaning stage can reveal interference without reopening the finished package. If the acceptance plan requires assembly after cleaning, its tools, handling and any repeat cleaning belong to that approved route. Keep the check and final handover in the same release plan.
Technical background on contamination, vacuum connections, polymers and component interfaces.
Tell us what the part does in your equipment and the stage of the project. We can discuss the component, its manufacturing requirements and the delivery condition needed for your next operation.
Drawing or model, part number and intended use; identify any workpiece, process or vacuum exposure.
Quantity, revision and whether the parts support development, evaluation or released repeat supply.
Material and finish, inspection records, cleaning/packing specifications and any approved-supplier conditions.
Start with the requirements you have; unresolved details can be identified before the build is released.
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