SEMI T21 - Specification for Organization Identification by Digital Certificate Issued from Certificate Service Body (CSB) for Anti-Counterfeiting Traceability in Components Supply Chain -

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Volume(s): Traceability
Language: English
Type: Single Standards Download (.pdf)
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Revision: SEMI T21-0314 (Reapproved 0919) - Current



Counterfeiting is a serious and growing problem in the worldwide industry. Various risks to the human security and life have become extremely high, when such counterfeited products are used in cars, and medical equipment, for example. One of the effective measures is introducing track and traceability supply chain system to identify all the buyers of components. In order to identify all the buyers of components within the logistics world, it is necessary to specify the identification of components, container-box, and the organization.


Common Form of the Certificate Profile — There is an effective method of using X.509 certificate for identifying buyers in supply chain track and trace system. It is important that the organization information recorded on the certificate not only be correct, but to enable automation of track. Because the profile which X.509 defines has some ambiguity, it is necessary to standardize profiles into a common form.


CSB’s Accreditation Criteria — In order to make the anti-counterfeiting track and trace truly effective, the interoperation of CSB are required. In order to verify X.509 certificates issued from many CSBs, each CSB needs to be chained with the public rootCA.


Referenced SEMI Standards

SEMI T20 — Specification for Authentication of Semiconductors and Related Products

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