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DEEP RESEARCH · NEPES

Nepes Deep Dive: Exynos Renaissance and the Strategic Value of Advanced Packaging

A structured look at how Exynos 2600, PMIC demand, and HPB/FOWLP adoption could change Nepes' utilization and valuation setup.

Date: 2025-12-26 · OSAT/advanced packaging lens · Original Naver Blog post and references

Investment decisions are your own responsibility. This material is research and is not a buy or sell recommendation.

0. Bottom line first

My core view is that Nepes' opportunity is less about packaging the Exynos AP itself and more about PMIC, DDI, bumping, and fan-out packaging around the Exynos ecosystem. If Exynos 2600 regains meaningful Galaxy S26 share, utilization recovery and operating leverage can arrive together.

  • The Exynos downturn in 2022~2024 directly pressured Nepes' volume and utilization.
  • The KRW 34 billion AI semiconductor line expansion announced in April 2025 reads as a move toward higher-value PMIC and AI packaging while lowering mobile dependence.
  • HPB targets AP thermal limits, but Nepes' more realistic near-term benefit is PMIC specification upgrades and broader FOWLP/FOPLP adoption.

1. The mobile AP thermal wall and Nepes' position

On-device AI, high-end gaming, and 8K video processing have raised smartphone AP workloads while the phone form factor remains around 7~8mm, increasing thermal density. Exynos has previously been criticized for heat control and sustained performance versus Snapdragon and Apple A-series chips, and the GOS controversy exposed the need for hardware and packaging innovation.

Interpretation: Galaxy S26 and Exynos 2600 in 2026 should be read not just as a product launch, but as a test of Samsung's 2nm GAA, HPB, and back-end ecosystem competitiveness.

Exynos ecosystem recoveryAP adoption is the leading variable
AP2nm GAA·HPB
PMICPower control·higher specs
OSATWLP·FOWLP·bumping
UtilizationFixed-cost leverage
For Nepes, the cleanest monitoring points are PMIC volume and fan-out packaging adoption.

2. From materials to advanced packaging

Official fact: The source states that Nepes began in December 1990 as an electronic materials company for semiconductors and displays, working on localization of developers, photoresists, and cleaners.

In the early 2000s, management saw growth potential in non-memory back-end processing and introduced flip-chip bumping. That became the turning point from materials into advanced packaging.

1990s

Electronic materials

Nepes built its base by localizing semiconductor and display process materials.

2000s

Bumping pivot

Flip-chip bumping expanded the company into system semiconductor back-end work.

2010s

Samsung ecosystem

PMIC and DDI packaging placed Nepes inside the Exynos companion-chip value chain.

3. Exynos downturn and utilization sensitivity

A lower Exynos AP share does not only reduce AP-related volume. Mobile platforms pair an AP with optimized PMICs, so a higher Snapdragon mix can shift demand toward Qualcomm PMICs and Taiwan-based OSAT partners.

PeriodSource's pointNepes impact
2019~2020Semiconductor segment utilization above the mid-80% rangeHelpful for fixed-cost absorption and margins
2023~2024Exynos downturn drove estimated utilization to 40~50%Can translate into operating losses
2026 scenarioExynos 2600 adoption is the key swing factorPotential PMIC volume recovery and ASP uplift

4. Investment and technology: KRW 34bn, AI PMIC, HPB/FOWLP

Official fact: The source highlights the KRW 34 billion new facility investment announced on April 1, 2025 as the most important recent investment.

Interpretation: I read this as more than capacity expansion: it supports AI-server PMIC, higher-value packaging, and reduced dependence on mobile cycles.

HPB changes the heat path inside AP packaging. The source explains that conventional PoP traps heat by stacking memory above the AP, while HPB uses a copper heat block and related structure to release heat upward, potentially reducing chip temperature by 10~30%.

HPB/FOWLP linkageBack-end change for thermal control
PoP limitMemory over AP
FOWLPI/O fans out beyond die
HPBRoom for heat block
PMICHigher-spec packaging
Nepes' clearer opportunity is PMIC and fan-out expansion, not necessarily the main AP package.

5. Scenarios and investment implications

Base Case

  • Exynos 2600 returns meaningfully in Galaxy S26.
  • PMIC count and specifications rise, improving both price and quantity.
  • Utilization recovery can turn into fixed-cost leverage.

Bull Case

  • On-device AI highlights the competitiveness of Samsung's Exynos-PMIC integrated solution.
  • Exynos share expands above 60%, or Nepes captures some Snapdragon-related PMIC volume.
  • The source describes a possible utilization move above 90% and record 2026 earnings.

Bear Case

  • 2nm yield or performance issues limit Galaxy S26 adoption to 20~30%.
  • Utilization may remain around 50~60%, though AI-server PMIC and non-mobile growth could soften the downside.

The monitoring stack is clear: Galaxy S26 AP allocation, Exynos yield, HPB thermal performance, and Nepes' quarterly utilization.

Sources

Naver original