Samsung’s next flagship smartphone chipset is already generating debate long before the Galaxy S27 series officially arrives. Fresh reports suggest the company is reconsidering one of the most advanced packaging technologies used in recent Exynos chips, potentially signaling a major shift in how Samsung balances performance, heat management, and manufacturing costs in the next generation of Galaxy devices.

At the center of the discussion is the rumored Exynos 2700 processor, expected to power at least some Galaxy S27 and Galaxy S27+ models when they launch in early 2027. According to recent industry reports, Samsung may move away from Fan-Out Wafer-Level Packaging (FOWLP), a sophisticated packaging method it has used since the Exynos 2400. Instead, the company is reportedly exploring a Side-by-Side (SbS) architecture combined with its proprietary Heat Pass Block (HPB) technology.

The possible transition highlights a broader industry challenge: smartphone makers want thinner devices with better thermal performance, but advanced chip packaging technologies remain expensive and increasingly difficult to scale profitably.

Why Samsung Used FOWLP in the First Place

Samsung adopted Fan-Out Wafer-Level Packaging to improve thermal efficiency and reduce chipset size in premium smartphones. The technology allows chips to be packaged without a traditional substrate, improving electrical performance while also helping with heat dissipation.

Reports indicate that Samsung viewed FOWLP as a key advantage for the Exynos 2400 generation because it helped maintain stable performance under sustained workloads. Thermal management has become especially critical as modern flagship chips handle increasingly demanding AI features, high-refresh-rate gaming, advanced photography processing, and on-device machine learning tasks.

Samsung previously claimed that FOWLP could make chipsets 40 percent smaller, reduce thickness by 30 percent, and improve thermal resistance by 16 percent.

Those gains are particularly valuable in flagship smartphones where manufacturers constantly fight for internal space while trying to prevent overheating.

However, the same technology also introduces manufacturing complexity and higher production costs.

The Cost Problem Behind Advanced Packaging

According to the reports, Samsung’s concern is not performance, but profitability.

FOWLP is considered expensive because of its sophisticated manufacturing process and tighter production tolerances. As smartphone component prices rise — particularly memory and advanced semiconductor fabrication — manufacturers are under pressure to reduce costs without sacrificing flagship-level performance.

Industry insiders cited in recent reports claim Samsung had been evaluating whether to remove FOWLP from the Exynos 2700 as part of broader cost-cutting measures. Some rumors even linked the move to ongoing DRAM shortages affecting the semiconductor market.

If accurate, the decision would reflect a difficult balancing act for Samsung:

• Maintain premium thermal performance
• Control rising production costs
• Keep Galaxy S27 pricing competitive
• Continue pushing Exynos performance forward against rivals

That balancing act becomes even more complicated because Samsung’s Exynos division is attempting to regain credibility after several years of mixed consumer reception.

Enter Side-by-Side Packaging

Rather than stacking components vertically, Samsung is reportedly considering a Side-by-Side (SbS) packaging layout for the Exynos 2700.

In this design, the application processor (AP) and DRAM sit next to each other on the substrate instead of being layered together. The approach could create better thermal distribution because heat sources are physically separated rather than concentrated in stacked layers.

Samsung is also expected to integrate its Heat Pass Block (HPB) technology into the new design. HPB is reportedly intended to improve heat transfer and overall cooling efficiency.

Combined together, SbS architecture and HPB could allow Samsung to preserve strong thermal characteristics even if it modifies or reduces its use of FOWLP.

The strategy would fit a broader trend in semiconductor engineering where packaging innovation is becoming almost as important as transistor density itself.

Conflicting Reports Create Uncertainty

Not all reports agree that Samsung will completely abandon FOWLP.

Another industry update claimed the company still intends to give the Exynos 2700 “premium treatment,” including advanced packaging technologies and cutting-edge manufacturing processes.

That report suggested Samsung’s second-generation 2nm GAA process could remain central to the Exynos 2700’s design strategy, with no major compromises planned for the flagship chipset.

The conflicting information has fueled speculation across the semiconductor industry because Samsung’s packaging choices could significantly influence the Galaxy S27’s real-world performance.

If Samsung maintains FOWLP while also adopting new cooling methods like SbS and HPB, the Exynos 2700 could become one of the company’s most thermally efficient flagship chips to date.

On the other hand, if cost pressures force Samsung to scale back advanced packaging, critics may question whether Exynos can continue competing directly with Qualcomm’s Snapdragon lineup and MediaTek’s Dimensity series.

The Bigger Battle: Exynos vs Snapdragon

The Exynos 2700 is not launching into a quiet market.

By early 2027, Samsung’s chip will likely face competition from:

• Qualcomm Snapdragon 8 Elite Gen 6 Pro
• MediaTek Dimensity 9600 Pro
• Apple’s next-generation A-series silicon

All three rivals are expected to push heavily into AI acceleration, graphics performance, and power efficiency.

Thermal performance will become increasingly important because modern smartphone chips are no longer optimized only for peak benchmark numbers. Sustained performance during gaming, video editing, AI processing, and multitasking has become a major selling point.

This is where packaging technologies like FOWLP and SbS matter.

A chip that runs cooler can sustain higher clock speeds longer without throttling. That translates directly into smoother gaming, faster AI operations, and better long-term device stability.

Samsung appears aware that consumers now pay closer attention to thermal efficiency than ever before.

Galaxy S27 Could Showcase Samsung’s Semiconductor Ambitions

The Galaxy S27 series may represent more than just another smartphone release for Samsung.

The company has been aggressively investing in semiconductor manufacturing, including advanced Gate-All-Around (GAA) transistor technology for 2nm production nodes. If the Exynos 2700 successfully combines next-generation fabrication with improved packaging and cooling strategies, Samsung could position itself as a stronger vertically integrated competitor.

That would be significant because Samsung designs:

• smartphones
• displays
• memory
• image sensors
• processors
• semiconductor fabrication technologies

Very few companies control so much of the mobile hardware supply chain internally.

A successful Exynos 2700 could therefore strengthen Samsung’s position not only in smartphones but also in advanced semiconductor manufacturing.

Why Thermal Design Matters More Than Ever

Modern flagship phones increasingly rely on:

• on-device AI processing
• real-time translation
• advanced image generation
• high-resolution gaming
• computational photography
• large language model integration

These tasks generate sustained thermal loads that older cooling solutions struggle to handle.

Consumers may not think about chip packaging when buying a phone, but they notice the consequences:

• overheating
• battery drain
• frame drops
• throttling
• reduced battery lifespan

That is why Samsung’s reported shift away from traditional FOWLP methods has attracted so much industry attention.

The decision is not just about manufacturing efficiency — it could directly shape the user experience of the Galaxy S27 lineup.

What Happens Next

Samsung has not officially confirmed any packaging details for the Exynos 2700. As with many early semiconductor leaks, plans could still change before mass production begins later this year.

The company may ultimately:

• retain FOWLP entirely
• combine FOWLP with SbS architecture
• reduce FOWLP usage selectively
• adopt a hybrid packaging strategy

What is already clear is that Samsung sees thermal engineering as a critical battlefield for the next generation of flagship smartphones.

With AI workloads growing rapidly and premium smartphone competition intensifying, the Exynos 2700 could become one of Samsung’s most important mobile processors in years.

And if the Galaxy S27 series succeeds in delivering cooler sustained performance without sacrificing efficiency or pricing, Samsung’s packaging gamble may prove worthwhile.