1. The Dilemma of Moore’s Law: Shrinking Hits Physical Limits
For over half a century, the central story of the semiconductor industry has been transistor scaling. From 28nm to 7nm, then to 3nm and 2nm, each new process node delivered a dual benefit: higher performance and lower power consumption. But this proven path has now reached an unavoidable ceiling.

Physical challenges: As transistor dimensions approach atomic scales, signal transmission delays become harder to improve.
Economic challenges: Advanced chip manufacturing relies on EUV lithography equipment, with a single machine costing over $150 million.

2. As industry consensus now recognizes, the era of relying solely on process scaling is coming to an end.
The Rise of Advanced Packaging: From Backend Step to Performance Engine
Faced with physical limits and rising costs, the semiconductor industry is shifting focus from “shrinking the transistor” to finding new ways to boost performance. Advanced packaging has emerged as the best answer to this dual challenge.

3. Four Technology Paths: Building the Advanced Packaging Toolbox
Today’s mainstream advanced packaging technologies fall into four main paths, each with its own battlefield and market landscape.

1) 2.5D/3D Packaging: The Backbone of High-End Computing
2.5D packaging uses an interposer to achieve high-density interconnection.
3D packaging breaks the planar limit entirely, using vertical stacking to achieve a major leap in integration density.
2) Chiplet Packaging: A Paradigm Shift in Modular Design
The core idea of chiplets is to split a large SoC into smaller functional dies, manufacture each on the optimal process node, and then integrate them through packaging. This “divide and conquer” approach improves yields and reduces manufacturing costs.
3) Fan-Out Packaging: Balancing Performance and Cost
If 2.5D/3D is the high-end specialty, fan-out packaging is the preferred solution for achieving a balance between performance and cost.
4) SiP (System-in-Package): The Go-To for Consumer Electronics
SiP is the top choice for consumer electronics, wearables, IoT devices, and automotive electronics—where small size, full functionality, and fast time-to-market are key.

4. The Deep End: Engineering Challenges in Advanced Packaging
Warpage: Managing deformation during manufacturing
Glass substrates: Opportunities and risks with new materials
Hybrid bonding: Technical hurdles in achieving finer pitch connections
Thermal issues: The “hot sandwich” problem in 3D stacking

5. The Three Giants: TSMC, Intel, and Samsung Race Ahead
With surging demand for AI chips, global semiconductor leaders are ramping up investments in advanced packaging.

1) TSMC: WMCM Ushers in a Consumer Electronics Packaging Revolution
TSMC’s WMCM (Wafer-Level Multi-Chip Module) packaging technology is approaching mass production.
2) Intel: EMIB + Glass Substrate Rewrites Interconnect Rules
Intel is building a differentiated advantage by combining EMIB (Embedded Multi-Die Interconnect Bridge) with glass substrates.
3) Samsung: HPB Cooling Tech Breaks Through Mobile SoC Bottlenecks
Samsung’s HPB (Heat Path Block) technology, introduced in the Exynos 2600 processor, integrates copper-based heat spreaders above the SoC die and strategically positions them alongside LPDDR DRAM memory to optimize heat dissipation.

6. Looking Ahead: Advanced Packaging Reshapes the Semiconductor Landscape
The significance of advanced packaging goes far beyond technological breakthroughs. It is fundamentally reshaping the competitive landscape of the global semiconductor industry.“Advanced packaging is not just an extension of Moore’s Law—it is a key driver enabling the next generation of applications.”
In this new era where process scaling is slowing, packaging has become the central battleground of the semiconductor industry—and the foundation for the next decade of computing power growth.