Who Jih Lin is
Jih Lin Technology (5285.TW) makes power leadframes — the stamped metal frames inside power packages that carry current and, just as importantly, heat. Core skills are precision tooling, metal stamping, surface roughening, and plating. Management cites more than 25 years of mould design and metalworking, and a customer list of global IDMs and OSATs: Infineon, onsemi and STMicroelectronics in Europe and the US; Mitsubishi Electric, Renesas and ROHM in Japan; Panjit, the ATX group and JCET in Greater China.
It is not on NVIDIA's list. It sits in this collection as a leadframe peer of Chang Wah (6548.TW), with a different disclosure and a different mix.
Business mix
Q1 2026 applications: automotive 49%, industrial 29%, consumer 22%. Auto plus industrial is close to 80%, and that is the intended shape — consumer has been cut deliberately.
Five plants in four countries:
- Taiwan — group hub and new-product development.
- Japan — automotive and other high-end precision work.
- Suzhou and Jinan — scale and speed into China's semiconductor build-out.
- Malaysia — ASEAN, focused on power integrated devices.
The process story is stamping first, with etching brought in where a part needs both — dual-sided cooling modules are the example management used.
Where it sits in the NVIDIA 800 VDC stack
At the same packaging step as Chang Wah. Every conversion stage in the architecture steps voltage down, and stepping down produces heat; the leadframe is the thermal path out of the power device.
The two names should not be read as interchangeable. Chang Wah has put 800V HVDC leadframes in reported revenue — 6–8% of sales, a 30–50% ASP premium, special surface treatment. Jih Lin has not given a sales share. What it has said is product-level: top-side cooling (dual-sided) leadframes and Clipper parts, transferred from automotive power-module technology into AI-server HVDC, already in volume, high technical barrier, better margin. Production can be split across two or three plants depending on the customer, covering international IDMs and Chinese accounts.
Treat Chang Wah as the quantified 800V mix and Jih Lin as a named product transfer from auto modules. There is no disclosed overlap figure to add the two together.
Strategy
Capital spending is for line optimisation and automation, not a greenfield plant — about NT$200m in 2026, a step up from a little over NT$100m in prior years. Group utilisation is 70–75%. If a new site is needed, Southeast Asia would be first. The geographic footprint is also the geopolitical answer: customers score a supplier that can make the same part in more than one region.