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AI Value-Chain & Enterprise Technology Research
Growing chip-design complexity gives Onto Innovation's customers reason to keep investing beyond the current packaging recovery; Camtek offers more focused advanced-packaging exposure, with a technical edge in selected HBM applications. Onto is more closely tied to SK hynix's capital spending and also sells chip-fabrication metrology and packaging lithography. Industry information identifies Camtek as a preferred supplier for Samsung's HBM lines as Samsung invests to catch up. x.comÂ
Onto Innovation, Camtek and Nova look richly valued at 26-28x EV to gross profit, even as rising HBM complexity lifts demand for their tools. SK Hynix plans to roughly triple output while stacks climb from 8 to 12 to 16 layers, adding lines and metrology steps. Onto is the incumbent at SK Hynix and Camtek has more Samsung exposure. Rigaku, in which Onto took a 27% stake, trades near 12x on low FCF margins from heavy investment and looks attractive if it gains operating leverage. x.comÂ
TSMC's shift to CoWoS-L packaging creates quiet winners in Camtek, Onto Innovation and Disco, which address its new yield problems. Advanced packaging is AI's main bottleneck. CoWoS-L replaces rigid silicon interposers with organic substrates and tiny silicon bridges, which warp under heat and break microscopic solder joints. Camtek and Onto supply essential 3D inspection and metrology for those substrates, and Disco is a near-monopolist in dicing and grinding the bridges. x.comÂ
As AI makes memory the bottleneck, value is shifting from compute into the memory system, and HBM test and process control, which validates every HBM stack before delivery, sits outside the already-priced HBM narrative. HBM is growing from $35 billion in 2025 to an estimated $100 billion in 2028, with capacity sold out through 2026. But HBM makers and TSMC's CoWoS are now 2-3x return cases, not 10x; the opportunity lies in strong nodes with pricing room left. x.comÂ
Camtek's AI inspection orders are now turning into sales as customers expand chip production and need tools to catch defects. Preliminary Q3 revenue of $160m is roughly 20% above Q2, with $179m forecast for Q4. x.comÂ
More memory CapEx may yield proportionally fewer bits as HBM consumes more wafer capacity, supporting SK hynix and Samsung's pricing. Both reported double-digit quarterly DRAM and NAND price gains; Samsung targets 60-70% of mid- to long-term capacity under LTAs. SK hynix has the stronger execution record, but Samsung could benefit enormously from conventional memory without winning HBM4. If trends persist, normalized margins could rise, though memory remains cyclical. x.comÂ
Higher HBM stack requirements favor Samsung Electronics shares, even as the broader semiconductor industry suffers and DRAM is in dire straits. Daishin Securities says plans for 4-high and 6-high HBM in low-end inference appear shelved, while Nvidia's 8-high Rubin option appears dropped amid base-die supply constraints and customers' preference for bandwidth. x.comÂ
HBM advances are creating strong, durable moats and long-term pricing power for Micron and SK hynix. x.comÂ
Shorter HBM stacks are not reducing demand for SK hynix's HBM, because customers are redesigning AI accelerators around limited supply. On its call, management said lower stacks let customers build more accelerators; supplying the same bit volume then requires more packages, base dies and back-end processing. Denser dies can offset some lost layers, and SK hynix says customer volume requests exceed twice its current supply. x.comÂ
Tight memory supply keeps the AI memory supplier trade in bill-of-materials names if it persists. The investor aleabitoreddit reports an SK hynix shortage outlook through 2030 and an operating-margin result near 80%. HBM allocation and average-selling-price guidance are the next tests; Korea has already priced the earnings print, so the next move depends on who locks capacity. x.comÂ
SK hynix's exceptional margins and contracted capacity underpin a bullish outlook despite shares sitting around half their June high. Q3 operating margin reached 80%, up from 47% a year ago; long-term deals with 14 customers cover over half of 2027-28 capacity, and management expects demand to exceed supply through 2030. x.comÂ
Per FTR Investors, Applied Materials' larger stake strengthens BE Semiconductor's partnership in hybrid bonding and advanced AI chip packaging, supporting a bullish view. Applied Materials is increasing its stake from 9% to about 20%. x.comÂ
