# Who are FormFactor's customers? Who does FormFactor earn revenue from?
Canonical: https://valuechain.wiki/formfactor · Facet: customers · Updated: 2026-07-12T04:00:43.77872+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: FormFactor's confirmed revenue counterparties include SK하이닉스, 삼성전자, Micron Technology plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 4 revenue edges, backed by 2 dated sources, 1 of them primary filings (as of 2026-07-12).

### SK하이닉스 (high)  → /sk-hynix.md
- note: Supplies HBM/DRAM probe cards to SK hynix — the leading HBM customer, so its HBM expansion and generation shifts pull probe-card demand first.
- [confirms] SEC EDGAR (EN, filing, published 2025-10-29) https://www.sec.gov/Archives/edgar/data/0001039399/000103939925000113/form-20250927.htm: "sk-hynix sources DRAM/HBM probe cards from FormFactor."
- [confirms] ETNews (KO, news, published 2024-04-24) https://www.etnews.com/20240424000216: "sk-hynix sources DRAM/HBM probe cards from FormFactor."

### 삼성전자 (mid)  → /samsung-electronics.md
- note: Supplies HBM/DRAM probe cards to Samsung — rising die stacks and pin counts increase per-card complexity and replacement demand.
- [confirms] SEC EDGAR (EN, filing, published 2025-10-29) https://www.sec.gov/Archives/edgar/data/0001039399/000103939925000113/form-20250927.htm: "samsung-electronics sources DRAM/HBM probe cards from FormFactor."
- [confirms] ETNews (KO, news, published 2024-04-24) https://www.etnews.com/20240424000216: "samsung-electronics sources DRAM/HBM probe cards from FormFactor."

### Micron Technology (mid)  → /micron.md
- note: Supplies HBM/DRAM probe cards to Micron — among the memory three, a high-momentum customer tied to HBM capex.
- [confirms] SEC EDGAR (EN, filing, published 2025-10-29) https://www.sec.gov/Archives/edgar/data/0001039399/000103939925000113/form-20250927.htm: "micron sources DRAM/HBM probe cards from FormFactor."
- [confirms] ETNews (KO, news, published 2024-04-24) https://www.etnews.com/20240424000216: "micron sources DRAM/HBM probe cards from FormFactor."

### 로직·파운드리 (프로브카드) (mid)
- note: Supplies logic probe cards for GPUs/SoCs — the next growth axis diversifying memory concentration, with advanced-logic test complexity as the runway.
- [confirms] SEC EDGAR (EN, filing, published 2025-10-29) https://www.sec.gov/Archives/edgar/data/0001039399/000103939925000113/form-20250927.htm: "Apollo probe cards test GPUs, consoles, automotive MCUs."

Reverse side: https://valuechain.wiki/formfactor/suppliers.md · Ripple: https://valuechain.wiki/formfactor/ripple.md

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Full node: https://valuechain.wiki/formfactor.md · JSON: https://valuechain.wiki/formfactor.json