A practicing semiconductor engineer's daily read on global silicon news:
Trump's surprise Intel-Apple chip announcement collided with a historic Samsung-SK Hynix market cap squeeze, an ASML EUV export controversy, and Kioxia's NAND-fueled run past Toyota.
Chase's Take — The story of the week is the Samsung-SK Hynix cap gap collapsing to ₩99T from ₩525T four months ago — the market isn't pricing HBM as a niche high-margin product anymore, it's pricing it as the new center of gravity for the whole industry. SK Hynix's HBM4/HBM4E execution and its MR-MUF process lead are what closed that valuation gap, full stop. But run the target-price math forward and Samsung still comes out ~₩566T ahead of SK Hynix at consensus targets, so this comes down to how fast SK Hynix's HBM share erodes versus how elastic commodity DRAM pricing turns out to be. The TSMC capacity crunch pushing AMD, Google, Tesla, and BYD toward Samsung Foundry isn't a stopgap — that's structural diversification, and with Intel now landing Apple under direct White House backing, foundry could go from a TSMC monopoly to a real three-way race past 2027. The most underrated item this week is Tower-Marvell crossing 5 million coherent photonic ICs shipped — that's the power/thermal bottleneck in AI datacenters moving from GPUs to optical interconnect, and the WLBI test and InP supply chain behind it is about to get very busy. Micron's Q3 print on 6/24 is the next real checkpoint for whether this memory cycle still has legs.
1. Trump Announces Apple-Intel US Chip Deal, Intel Stock Jumps 10%
TL;DR — Trump posted on Truth Social that Apple agreed to design and manufacture chips with Intel in the US; Intel shares jumped 10% to a $608.7B market cap, becoming Intel Foundry's third mega-customer under CEO Lip-Bu Tan after Nvidia and Tesla's TerraFab deal.
Source: CNBC — Trump Announces Apple-Intel US Chip Deal, Intel Stock Jumps 10%
2. US Confronts ASML Over Possible EUV Leakage to China; ASML Denies Any Sales
TL;DR — Commerce Secretary Howard Lutnick raised concerns directly with ASML execs that top-tier EUV tools may have reached China; ASML says it has never shipped a single EUV system there, with exports banned since 2019 under Dutch and US controls.
Source: Bloomberg — US Confronts ASML Over Possible EUV Leakage to China; ASML Denies Any Sales
3. SK Hynix Holds Private HBM Talks With US State Department
TL;DR — SK Hynix execs met privately with US Deputy Secretary of State Allison Hooker to discuss HBM4/HBM4E supply schedules, US packaging investment, and an ADR listing — on the same day it shipped 48GB 12-Hi HBM4E samples at 16Gbps/pin with Advanced MR-MUF.
Source: DIGITIMES — SK Hynix Holds Private HBM Talks With US State Department
4. Samsung-SK Hynix Market Cap Gap Drops Below ₩100T for First Time Since 2011
TL;DR — Samsung closed at ₩2,069.58T versus SK Hynix's ₩1,969.91T on June 19, a ₩99.67T gap — down from ₩525.42T in February — as SK Hynix shares gained 161.74% over three months versus Samsung's 69.78%.
Source: Asia Economy — Samsung-SK Hynix Market Cap Gap Drops Below ₩100T for First Time Since 2011
5. Kioxia Tops Toyota as Japan's Largest Company by Market Cap
TL;DR — Kioxia shares jumped 12.07% to ¥108,600, pushing market cap to ¥59.33T and overtaking Toyota, with shares up 660% since its December 2024 IPO on surging AI datacenter NAND demand.
Source: TS2.tech — Kioxia Tops Toyota as Japan's Largest Company by Market Cap
6. TSMC's 2nm/3nm Full Book Pushes AMD, Google, Tesla, BYD Toward Samsung Foundry
TL;DR — With TSMC's advanced-node capacity locked up by Apple and Nvidia through 2027, AMD, Google, Tesla, and BYD are shifting orders to Samsung Foundry, helped by Samsung's 2nm GAA yield breaking 60% in Q1 2026, up from 20% late last year.
Source: DIGITIMES — TSMC's 2nm/3nm Full Book Pushes AMD, Google, Tesla, BYD Toward Samsung Foundry
7. Micron Q3 Preview: EPS Seen Up 932% YoY Ahead of June 24 Print
TL;DR — Wall Street consensus for Micron's FY26 Q3 (reporting after close June 24) calls for $35B revenue and EPS up 932% YoY, driven by HBM3E and datacenter DRAM demand, with CEO Sanjay Mehrotra warning memory shortages persist beyond 2026.
Source: TickerDaily — Micron Q3 Preview: EPS Seen Up 932% YoY Ahead of June 24 Print
8. Aehr Wins FOX-XP Production Order From Silicon Photonics Customer
TL;DR — Aehr Test Systems secured a follow-on production order for its FOX-XP wafer-level burn-in system from a leading datacenter optical transceiver maker, supporting 9 wafers in parallel with delivery within six months as datacenters shift from copper to optical interconnect.
Source: Semiconductor Today — Aehr Wins FOX-XP Production Order From Silicon Photonics Customer
9. TrendForce: DDR3 Spot Prices Keep Climbing as DDR4 Shortage Drives Spec Downgrades
TL;DR — DDR4 1Gx8 3200MT/s spot price held near $35.8 (-0.28% w/w) on supplier hold-outs, while DDR3 spot prices kept rising as buyers downgrade specs amid DDR4 shortages — a sign HBM capacity is structurally squeezing commodity DRAM supply.
Source: TrendForce — TrendForce: DDR3 Spot Prices Keep Climbing as DDR4 Shortage Drives Spec Downgrades
10. Tower and Marvell Ship Over 5 Million Coherent Photonic ICs
TL;DR — Tower Semiconductor and Marvell announced cumulative shipments of more than 5 million coherent photonic ICs built on Tower's silicon photonics platform, signaling the optical interconnect market has moved past R&D into volume production for AI datacenters.
Source: Tower Semiconductor IR — Tower and Marvell Ship Over 5 Million Coherent Photonic ICs