DB HiTek finaliza la cualificación de fiabilidad para el proceso MOSFET de SiC de 8 pulgadas y 1.200 V

DB HiTek completed reliability qualification for its 1,200V silicon-carbide MOSFET process on 8-inch (200mm) wafers, positioning it to launch what it describes as the world's first complete 8-inch SiC foundry process flow. The company targets volume production in 2027, with customer access beginning in Q3 2026 and broader availability in Q2 2027. Its second-generation process achieves specific on-resistance of 2.5 mΩ·cm² or less, while a third-generation PDK due in November targets 2.3 mΩ·cm² or less and is expected to cut customer product-development time by more than one year.

Analysis

The strategic value is not the process milestone itself but the potential separation of SiC design from manufacturing. A credible merchant foundry lowers the capital barrier for automotive Tier-1s, inverter specialists and industrial-power IC vendors to launch proprietary 1,200V products, gradually eroding the advantage held by vertically integrated SiC suppliers such as onsemi (ON), STMicroelectronics (STM) and Infineon (IFX.GR). The revenue effect should be immaterial before 2027, but design starts over the next 6-12 months could determine whose devices enter EV platform qualifications in 2028-29.

The key economic uncertainty is yield, not nominal electrical specification. On 200mm SiC, substrate defects, epi quality, gate-oxide reliability and usable die per wafer determine whether the claimed cost advantage reaches customers; qualification of a process flow does not establish high-volume yield, customer tape-outs, capacity utilization, or pricing. DB HiTek (000990.KS) also faces a capital-intensity trap: meaningful SiC revenue requires equipment and substrate commitments well ahead of utilization, creating margin and free-cash-flow risk if EV inverter demand remains uneven.

Near term, this is more relevant as a valuation constraint on SiC scarcity premiums than as an earnings catalyst. WOLF is the most exposed public pure-play to any evidence that independent 200mm capacity is becoming viable, though it could partially benefit if it supplies substrates; ON, STM and IFX have more diversified earnings and can defend share through module integration, automotive qualification history and captive supply. The contrarian view is that foundry availability may expand the total SiC design ecosystem faster than it commoditizes incumbent devices, particularly in industrial drives, charging and grid applications where customers value second sourcing.

The thesis is falsified if DB discloses subscale committed capacity, delayed third-generation qualification, weak customer tape-out activity, or yields that prevent competitive wafer economics. Conversely, named automotive/industrial design wins, disclosed long-term substrate supply, and evidence of qualified volume orders before mid-2027 would make this a material competitive catalyst.

Key Decisions for Investors

• Keep DB HiTek (000990.KS) on watch rather than initiating on the release: require disclosure of 200mm SiC capacity, committed customer programs and capex/financing before underwriting 2027 revenue. Reassess after the third-generation PDK qualification and initial customer-access period over the next 3-6 months.
• Use any SiC-foundry validation as a tactical valuation hedge: consider long ON or STM / short WOLF over a 6-12 month horizon only if WOLF retains a scarcity-driven valuation premium while independent 200mm capacity announcements accelerate. The risk is that WOLF becomes a substrate beneficiary or announces contracted wafer demand; cover on confirmed substrate-supply wins or a material improvement in liquidity/run-rate utilization.
• For long-term semiconductor-power exposure, favor ON and STM over a broad pure-play SiC basket for the next 12-18 months: their automotive module content and diversified power portfolios better absorb SiC device ASP pressure. Revisit if EV inverter design-win data show merchant-foundry customers taking meaningful socket share rather than merely adding supply redundancy.
• Set an event alert for named customer tape-outs or binding wafer-volume commitments from DB HiTek before mid-2027. That is the point at which a short WOLF versus ON/STM pair becomes actionable; absent those data, the announcement is technology validation rather than a tradable earnings revision.