Producer
Stella Chemifa Corporation
Japanese electronic-grade specialty chemical company (TSE: 4109, HQ Osaka; ~¥50B revenue); producer of ultra-high purity hydrogen fluoride (electronic grade, 5N to 7N+ purity — 99.999% to 99.99999%) used in semiconductor wet etching processes (HF etches silicon dioxide — SiO2 — in a highly controlled manner to pattern silicon chips). Stella Chemifa's electronic-grade HF is the standard product for Japanese semiconductor manufacturers (Renesas, Toshiba Memory/Kioxia, Sony Semiconductor) and exports to Korean (Samsung, SK Hynix) and Taiwanese (TSMC) fabs. In 2019, when Japan restricted exports of semiconductor-grade fluorinated compounds to South Korea, Stella Chemifa was one of the three Japanese companies affected by the export controls (alongside Sumitomo Chemical and JSR). Samsung reportedly had enough Stella Chemifa HF inventory for approximately 1-2 months of production when Japan imposed the restrictions.
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Facilities
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3 inputs Stella Chemifa Corporation supplies
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Electronic-Grade Hydrogen Fluoride (UHP HF)
45%LiPF6 Electrolyte Salt (EV Batteries)
30%Specialty Fluorine Compounds
15%Industrial HF & Fluorochemicals
10%
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Did you know2023
Stella Chemifa produces ultra-high purity HF for semiconductor etching (chip manufacturing supply chain) AND lithium hexafluorophosphate (LiPF6) electrolyte salt for EV lithium-ion batteries (clean energy supply chain) from the same Osaka fluorine chemistry expertise. The semiconductor industry's need for hydrogen fluoride and the EV battery industry's need for LiPF6 both depend on high-purity fluorine chemistry -- and both use Stella Chemifa as a Japanese supplier. An Osaka Stella Chemifa production disruption, a Japanese export control affecting both products simultaneously, or a fluorine feedstock shortage affecting Stella's upstream supply would simultaneously constrain semiconductor fab etching chemistry and EV battery electrolyte supply. The chip industry and the EV industry share a Japanese fluorine chemistry company without either industry's supply chain analysts typically flagging the cross-sector exposure.
Stella Chemifa Corporation ↗Origin2023
Stella Chemifa was founded in 1951 in Osaka, Japan as a specialty fluorine chemical producer -- in the early postwar period when Japan was rebuilding its chemical industry infrastructure. Osaka's chemical industry cluster (including companies like Daikin, Sumitomo Chemical, and Ube Industries) provided the industrial environment for specialty fluorine chemistry development. Stella Chemifa built deep expertise in hydrogen fluoride purification over decades, achieving the ultra-high purity grades (99.999% and above) required by semiconductor fabs only through proprietary purification technology that took years to develop. When Japan's Ministry of Economy, Trade and Industry (METI) imposed export licensing requirements on three key semiconductor materials including hydrogen fluoride in July 2019 -- in response to a South Korean Supreme Court ruling on wartime labor compensation -- Stella Chemifa's electronic-grade HF became geopolitically weaponized almost instantly. Samsung had reportedly maintained only 1-2 months of Stella Chemifa HF inventory when the controls were imposed, creating one of the first explicit demonstrations that semiconductor supply chains could be used as diplomatic leverage between developed democracies.
Stella Chemifa Corporation ↗