Quality control, from source to shipment
We review suppliers and sources, inspect received batches and arrange additional testing according to risk and order requirements.

Inspection planned around your order
We plan inspection around the supplier, the actual batch and your order requirements.
Review the supplier. Assess the batch.
Supplier approval
We review suppliers’ credentials, sourcing channels, traceability and quality practices. Approval is limited to a defined scope, with annual reviews and ongoing monitoring of delivery, quality and after-sales performance.

Source and batch review
Manufacturer or authorized-channel supply, OEM/EMS excess and independent-market sourcing have different risk profiles. We also review the source and batch conditions of SemiKey-controlled stock.
We set the inspection plan using supplier history, component and batch details, available traceability and your documentation or testing requirements.

Baseline checks for every received batch
Before release, we complete the applicable baseline checks for every received batch:
- Purchase documents and available traceability records
- Outer and inner packaging, seals and visible condition
- Manufacturer part number and received quantity
- Consistency across labels and device markings
- Available date code and lot information
- External appearance under magnification
Unless an order requires a stricter sampling plan, sampling follows ANSI/ASQ Z1.4, General Inspection Level II, with AQL 0.65. These checks help determine whether further testing is needed; they do not rule out every latent defect.

Additional testing follows the risk
Additional testing depends on supply risk and order requirements and may include the methods below.
We perform testing in-house only within our laboratory’s verified capability. Other agreed tests are carried out by an approved third-party laboratory. The quote or inspection plan identifies the tests and the provider for the batch.
X-ray imaging
X-ray imaging can reveal internal construction, bond-wire patterns, die placement and other concealed features relevant to the agreed inspection plan.
XRF or material analysis
XRF or material analysis may be used to compare material composition or screen for restricted substances where relevant to the component and project.
Curve tracing or other electrical testing
Within the agreed test scope, selected electrical characteristics or parameters are compared with available reference information for the device.
Solderability testing
Terminals or leads are evaluated for solder acceptance using the method and acceptance criteria agreed for the batch.
Scanning acoustic microscopy
Acoustic imaging may be used to examine internal interfaces for delamination, voids or other anomalies not visible from the exterior.
Decapsulation
When destructive analysis is justified, decapsulation exposes the die and internal construction for marking, layout and structural review.
Reviewed before release. Documented by batch.

Batch records and access
We release batches only after the required review and inspection. Supplier and source review records, receiving and inspection records, photographs, the certificate of conformance and available traceability documents are retained for ten years.
Order documents are available through your account or our support team. Batch-specific quality records are provided when agreed for the order or needed for a quality review.

Suspect material stays out of shipment
Material that fails acceptance checks or raises authenticity concerns is blocked from shipment while we investigate. If your order is affected, we explain the issue before release. Confirmed counterfeit material is kept out of the supply chain.
Certifications and scope
SemiKey Limited’s quality management system is certified to ISO 9001:2015, and its environmental management system is certified to ISO 14001:2015. Both certifications cover the sale of electronic components.
Any accreditation cited for an external laboratory belongs to that laboratory, not to SemiKey.

BS EN ISO 9001:2015
- Certificate no.
- 121248
- Issuer
- NQA
- Issue date
- 2024-06-05
- Valid until
- 2027-06-05

BS EN ISO 14001:2015
- Certificate no.
- 121249
- Issuer
- NQA
- Issue date
- 2024-06-05
- Valid until
- 2027-06-05
Quality support continues after delivery
The default warranty is three years from the date you receive the components. A product-specific warranty condition applies only if SemiKey discloses it and you expressly accept it before you submit your order or accept the relevant quotation.
For authenticity, conformity or component quality concerns, request support through our RMA process.
Have a batch-specific quality requirement?
Include the required documentation, tests and acceptance criteria in your quote request so the scope and cost can be agreed before purchase.



