200 mm Calibration Wafer Standards
A 200 mm wafer diameter starts the configuration; the inspection objective and deposition design determine whether it is useful.
The purchasing problem
A request for a “200 mm calibration wafer” leaves the most important variables unresolved. Tool model, recipe, substrate, particle material, assigned size, deposition pattern, density, edge exclusion, handling and certificate data control the calibration value.
Decision points that control fit
- Inspection-tool manufacturer, model and active recipe
- Size-response, uniformity, matching or challenge objective
- PSL or silica particle material
- Full, spot or multi-spot deposition
- Certified particle size or acceptable assigned-value range
- Substrate, notch/flat, film, backside and carrier requirements
- Certificate, map and traceability fields
Selection framework
| Full deposition | Common starting lane for size-response and across-wafer uniformity evaluation. |
|---|---|
| Spot deposition | Localized, visible deposition area for one or more controlled peaks. |
| PSL | Widely used size-response reference material with strong optical behavior. |
| Silica | Different optical, thermal and material characteristics for application-specific review. |
The framework narrows the technical path. Current manufacturer configuration, price, lead time, availability and included documentation are quotation-stage facts.
Compare the evidence before selecting the model
Quote the complete working package
Accessories, hose assemblies, standards, certificates, transport, installation, training and validation documents can determine whether the system is usable. A low base-unit quote with missing scope is not a lower-cost solution.
Commercial and specification questions
The selector and page content narrow the requirement. The formal quotation confirms the current configuration, commercial terms and included documentation.
Can a 200 mm standard be used on any 200 mm inspection tool?
No. Mechanical handling, recipe, optical response, substrate and deposition design must match the tool and objective.
Should PSL or silica be selected?
Use the instrument method and inspection objective. The materials are not universally interchangeable.
Is particle count exact across different tools?
Count response can differ by tool and recipe. Define whether the objective is size response, uniformity, matching or count behavior.
What certificate fields should be requested?
At minimum define wafer identity, particle material, assigned size, method, uncertainty or tolerance as applicable, deposition data and traceability requirements.
Turn this research into a controlled technical request.
Send the application, model, specification or drawing. GSE will preserve the technical lane, identify missing scope and verify current commercial details without treating website copy as an offer.
- Unique request reference
- Completeness score
- Technical-lane routing
- No fabricated channel or inventory claims