Grow the Silicon Ingot for Trust
December 3, 2021

Trusted chips require control of the entire manufacturing chain. Circuit IP matters, yet the trust boundary begins with materials and silicon ingots and continues through wafers, masks, equipment, process steps, metrology, packaging, test, and firmware.

Brian Greenforest’s supply-chain model turns semiconductor security into a complete industrial capability.

Follow Trust to the Beginning of the Wafer

A hardware assurance program must know where material came from, how crystal growth proceeded, which equipment touched the wafer, how masks entered the line, and what metrology confirmed at every stage.

That provenance protects against hidden structures, substituted materials, unexplained defects, unauthorized process changes, and compromised tooling.

Build Independent In-House Capability

An organization that controls design but outsources every physical step still depends on unseen systems. In-house manufacturing and trusted partner networks make the dependency graph inspectable and actionable.

Governments, semiconductor companies, equipment makers, and research institutions can build that chain together. Start at the ingot, carry traceability through the finished device, and make trust a manufactured property.

Originally posted on LinkedIn

Brian Greenforest · (2021-12-03 20:24:44 UTC)

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So ability to PRODUCE chips is overarching. Designing IP is a huge and deep industry. But in tracking a dependency graph, OF COURSE you need to grow silicon ingots from scratch so they won't come with some 3nm pre-fabricated spy hardware hidden deep inside, which for all analysis means will look like deep crystal defects near the back of the wafer.... Independent, fully in-house chip manufacturing is the key to future security.

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