Power delivery is the least crowded way to own AI capex, as capacitance moves onto the chip package. AI chips run at about 1V while drawing 800W to over 1kW, with current spiking from 100A to 900A instantly, too fast for distant MLCCs. AP Memory, the purest silicon capacitor play, posted record Q2 revenue up 78% with SiCap up 273% to 27% of sales, and one design needs nearly 100 caps per substrate with visibility into 2028. Samsung Electro-Mechanics signed a $1B SiCap supply contract. x.com 

Murata is the pick for the AI-grade MLCC bottleneck, since that spec runs through a handful of Japanese suppliers. Lead times are extended, a price hike is already in motion and each AI rack needs tens of thousands of these capacitors. Per SemiAnalysis, AI server MLCC demand grows about 5x by 2027 while new production lines take two years to build. x.com 

Japanese materials and component suppliers will inevitably cede share to China because they are too cautious about expanding capacity. Sinocera said its key raw materials for high-end MLCCs passed qualification at some customers; those customers may keep using Chinese suppliers through a downcycle, increasing pressure on Japanese firms. Taiwanese stocks are more attractive than Japanese materials and components plays; unlike Chinese firms, Taiwanese companies expand capacity and return capital. … Show more

Murata, Samsung Electro-Mechanics and Taiyo Yuden benefit from a narrow shortage of the high-capacitance, low-inductance MLCCs AI accelerators need, even as commodity capacitor pricing stays soft. MLCC content per rack rises from about $1,530 in GB300 to $4,320 in VR200. Taiyo Yuden's book-to-bill is about 1.7x, Murata's high-end utilization about 95%, and SEMCO raised prices 30%. Murata has the strongest position, SEMCO the clearest earnings conversion, Taiyo Yuden the cleanest exposure. x.com  … Show more

Samsung Electro-Mechanics is breaking into AI packaging by supplying silicon capacitors for Intel's EMIB, which is why the stock is surging. TSMC sourced silicon capacitors in-house, shutting outsiders out, but Intel must buy them. SEMCO is the only company with both silicon capacitor and substrate businesses, the top-value EMIB part, so it can supply both turnkey with strong bargaining power. It won a contract over $1B versus a few million dollars of such revenue last year. x.com 

Murata, Samsung Electro-Mechanics, Taiyo Yuden, Yageo and TDK look priced too hot even though MLCC fundamentals are booming. Taiyo Yuden cautioned that with 30-week lead times, ODMs are buffering inventory and part of the order book is panic buying. Samsung Electro-Mechanics' CFO said low-to-mid tier margins could face pressure in 18-24 months as Chinese rivals expand. Morgan Stanley and Citi analysts warned that at forward P/Es above 40x, any late-2026 capex slowdown could hit multiples hard. … Show more

AI servers are restructuring MLCC demand, giving Yageo and Murata pricing power and better profitability from a richer high-end mix. Per Korean media, AI servers need five to 13 times more high-capacitance MLCCs than conventional servers, pushing high-end lead times to five to over 10 months while standard parts sit at 14-18 weeks. Murata's high-capacitance lead times reached 30 weeks in July. New capacity has slipped into 2027, and makers are raising prices and signing long-term deals. x.com 

Samsung Electro-Mechanics is emerging as an AI infrastructure titan as advanced substrates become the bottleneck for AI scaling. Per @jukan05, it will supply FC-BGA substrates for Broadcom's most advanced AI accelerators from the second half, joining NVIDIA, Google, Amazon and Apple. With Ibiden and Shinko at full capacity, it is the only tier-1 player with the capex to scale large-area substrates. AI servers also need 3-4x more MLCCs, where Samsung and Murata own the IP and earn premium margin. … Show more

MLCC makers such as Murata look due for a selloff while MLCC materials suppliers should benefit. Murata and others trade at very extreme multiples even after price hikes, while materials makers do not, and as MLCC capacity expands, materials should follow with a lag. x.com  x.com 

Samsung Electro-Mechanics and Taiyo Yuden look good again as MLCC supply tightens. Samsung Electro-Mechanics is expected to announce production cuts for certain SKUs at a July 3 supplier meeting as capacity shifts to server-grade parts, and Taiyo Yuden is set to raise prices 50-150% on certain high-capacitance consumer SKUs. Consumer supply gets tighter while server MLCC capacity is prioritized. x.com