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Chip packagers shift to advanced tech, leaving legacy to China

By PulseAugur Editorial · Summary by gemini-2.5-flash-lite from 10 sources

Semiconductor packaging companies like ASE and Amkor are shifting from low-margin, commoditized assembly to high-margin advanced packaging crucial for AI and HPC applications. This strategic move involves significant investment in advanced packaging technologies like CoWoS, while legacy wire bonding capacity is increasingly concentrated in China. Despite weak demand in PCs and smartphones, China is experiencing a surge in demand for wire bonders, indicating a structural shift in the industry. AI

Summary written by gemini-2.5-flash-lite from 10 sources. How we write summaries →

IMPACT Advanced packaging is critical for scaling AI and HPC, indicating a supply chain shift to meet future demand.

RANK_REASON Analysis of a structural shift in the semiconductor packaging industry, detailing strategic investments and market realignments.

Read on X — SemiAnalysis →

COVERAGE [10]

  1. X — SemiAnalysis TIER_1 Italiano(IT) · SemiAnalysis_ ·

    Bottom line:

    Bottom line: Even without a rebound in mainstream demand, the mix shift alone is driving a fundamental re rating opportunity. “Boring” OSATs might not be so boring anymore. (10/10)

  2. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    In simple terms:

    In simple terms: OSATs are becoming critical enablers of advanced semiconductor performance. Higher barriers, higher margins, higher quality businesses. (9/10)

  3. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    This is the key shift:

    This is the key shift: From: Low-margin, commoditized packaging To: High-margin, enabling advanced packaging for AI / HPC applications They’re no longer just “assembly houses.” (8/10)

  4. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    Translation:

    Translation: Legacy packaging (low-margin, commoditized) is being pushed down the value chain, largely to China. Meanwhile, ASE and Amkor are moving UP the value chain. (7/10)

  5. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    Conversations with ASE make this clear:

    Conversations with ASE make this clear: They are NOT investing in wire bonders. They ARE investing heavily in: • CoWoS and other Advanced packaging. Amkor is doing the same. (6/10)

  6. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    Our view, this is a structural shift.

    Our view, this is a structural shift. China isn’t just adding capacity, it’s duplicating legacy, low-end packaging capacity. At the same time, leading OSATs are moving on. (5/10)

  7. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    Here’s the interesting part:

    Here’s the interesting part: This is happening despite: • Weak PC demand • Weak smartphone demand • Assembly shifting OUT of China So why is China demand for wire bonders exploding? (4/10) https://t.co/qncNg4JQfw

  8. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    But something is changing.

    But something is changing. KLIC is now seeing : • 90%+ utilization in China And guiding to: • H2’26 China growth +15–20% vs H1 At the Chipbook we have been tracking wire bonder imports into China which are up +108% YoY in March. (3/10) https://t.co/BlkmyrYnx3

  9. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    Let’s focus on the first for now; Assembly.

    Let’s focus on the first for now; Assembly. Historically, packaging = low-margin wire bonding. Not exciting. ASE once made up ~40% of $KLIC’s wire bonder business. After the COVID boom, capacity flooded the market and growth stalled. (2/10)

  10. X — SemiAnalysis TIER_1 · SemiAnalysis_ ·

    OSATs are usually seen as “boring” semiconductor companies. But we’ve been, and remain, bullish on Amkor ($AMKR) and ASE ($3711.TW). Why?

    OSATs are usually seen as “boring” semiconductor companies. But we’ve been, and remain, bullish on Amkor ($AMKR) and ASE ($3711.TW). Why? Because both sides of the OSAT model, Assembly & Test, are starting to shift in a meaningful way. (1/10) 🧵 https://t.co/ecw6YJlRqm

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