Advanced Packaging in the AI Data Center Era: Inside MediaTek’s 2.5D & 3D Innovations

The enterprise data center is at an inflection point and the race for custom silicon is intensifying. MediaTek — long known as a smartphone processor leader — has assembled one of the most compelling custom ASIC data center solutions in the industry, and here's why cloud architects and enterprise decision-makers should be paying close attention.

For years, the enterprise conversation around data center acceleration has centered on three names: NVIDIA, AMD, and Intel. But beneath that headline layer, a structural shift is underway. Hyperscalers including Meta, Microsoft, and Google have long been building their own ASIC hardware data center solutions to gain workload-specific efficiency that non-custom silicon cannot match. And now – in 2026 – the organizations enabling those custom chips — companies like MediaTek — are stepping fully into the spotlight.

MediaTek's 2026 Analyst Day made the company's ambitions explicit – a $1 billion data center revenue target for 2026, deepened partnerships with NVIDIA, Meta, and Microsoft, and a full-stack custom silicon capability stretching from 7nm all the way to 2nm process nodes.

The Case for Custom ASIC Solutions in the Data Center Game

Before examining MediaTek's specific ASIC strategy, it helps to understand why ASIC data center accelerator demand is climbing so sharply. General-purpose GPUs, while enormously powerful, carry a flexibility tax — silicon real estate and power budgets devoted to programmability that a fixed workload will never use. For training large language models, running inference at scale, or processing hyperscale networking traffic, that tax becomes prohibitive at the margins.

According to Marketsand Markets research, the ASIC segment is projected to register the highest CAGR in the data center accelerator market through 2030, driven by superior performance efficiency, scalability, and workload optimization. The core reason is straightforward: purpose-built data center chips  eliminate unnecessary logic, reduce power consumption, and achieve lower latency than any general-purpose alternative.

The next race is to enable the next tier of enterprises, the ones that need workload-optimized compute. That is precisely the gap MediaTek is positioning itself to fill.

MediaTek's Four-Pillar ASIC Architecture

MediaTek's AI ASIC data center strategy is built on four pillars and each of these address a specific bottleneck in modern AI infrastructure. Understanding these pillars is essential for any enterprise evaluating a custom silicon partner.

1. High-Speed Interconnect: Leading with 224G and 448G SerDes

Interconnect bandwidth is the silent killer of data center performance. As compute density increases, the links between chips, dies, and racks become the bottleneck. 

MediaTek's 224G SerDes solutions are production-ready and deliver industry-leading performance for high-speed data transmission in modern data centers. Crucially, the company is already developing the next generation of high-speed interconnects – 448G SerDes.

At ISSCC 2025, MediaTek presented best-in-class performance for 212 Gb/s and 106 Gb/s using DSP-based PAM-4 — a meaningful technical milestone showcasing a partner who is already building the next interconnect standard.

MediaTek is also championing Near-package Copper (NPC) and Co-packaged Copper (CPC) as lower-cost and lower-power alternatives for shorter-reach connections, thus extending copper's useful life by moving the interface closer to the chip itself.

2. Advanced Packaging: Breaking the Reticle Limit

Chip performance is increasingly constrained not by transistor density alone, but by how many dies can be integrated into a single package. 

MediaTek has significant experience with CoWoS and InFO packaging, and its roadmap now targets 15x-plus reticle designs — packages in the 10,000 to 20,000 square millimeter range using 3.5D stacking. 

Its first CoWoS product entered mass production in 2022 with the world's largest 85×85mm package at the time.

This matters for the ASIC hardware data center market because the era of the monolithic die is over. Modern XPU architectures — combinations of compute dies, memory interfaces, I/O chiplets, and accelerator blocks — require sophisticated heterogeneous packaging to function at scale. MediaTek's packaging depth is a differentiating capability that most pure-play ASIC design houses cannot match.

3. Process Node Depth: From N3 to N2P

MediaTek's relationship with TSMC gives its customers access to the most advanced process nodes available. The company has logged over 70 tape-outs from 7nm to 2nm, and achieved the first N2P tape-out in 2025 — a milestone that positions its ASIC customers to benefit from the performance-per-watt improvements of TSMC's most advanced process.

This translates into a concrete advantage for enterprises since they are less likely to encounter yield surprises or schedule slippage in the long run.

4. Co-Packaged Optics: Future-Proofing the Optical Layer

At OFC 2024, MediaTek unveiled a next-generation ASIC networking chip platform that integrates both high-speed electrical and optical I/O in the same implementation. Demonstrated in partnership with Ranovus, the co-packaged optics (CPO) solution combines 8×800G electrical and 8×800G optical links — reducing board space, cutting device costs, and delivering up to 50% lower system power compared to conventional approaches.

As data center networks push toward 1.6T and 3.2T speeds, co-packaged optics will become essential. MediaTek's early and demonstrated capability here is not a feature — it is a strategic prerequisite for relevance in next-generation network ASIC design.

How the NVIDIA NVLink Fusion Changes the Equation

Perhaps the most strategic and significant aspect of MediaTek's data center game is its status as one of the first adopters of NVIDIA NVLink Fusion. This partnership allows MediaTek to design custom AI silicon that connects natively into NVIDIA's NVLink fabric. Naturally, this will give enterprise customers access to NVIDIA's accelerated computing ecosystem while building workload-specific compute blocks.

It’s worth noting that enterprises that adopt NVLink Fusion-based custom ASICs through MediaTek can reduce development investment and reduce time-to-market, while integrating purpose-built silicon into a large-scale AI fabric. 

Notably, MediaTek also co-developed the NVIDIA GB10 Grace Blackwell platform. This goes on to indicate that its engineering collaboration with NVIDIA extends well beyond marketing alignment.

Heterogeneous Compute and the XPU Paradigm

One of the most important conceptual shifts for enterprise architects to internalize is the move from monolithic accelerators to heterogeneous XPU platforms. 

As MediaTek's own technical team explains, the term "XPU" describes an architectural umbrella for heterogeneous compute platforms that combine CPUs, GPUs, NPUs, DSPs, and other accelerators. These are often implemented as IP blocks on custom ASICs and integrated as chiplets within a shared package.

Now, this shift has direct implications for procurement strategy. Enterprises that evaluate data center chips as discrete and single-function components will increasingly find themselves locked into suboptimal configurations.

Hence, the organizations that move first to platform-level thinking will have a structural TCO advantage within two to three infrastructure refresh cycles.

MediaTek's ASIC design service provides exactly this: a complete RTL-in to GDSII-out flow, with in-house IP blocks for memory interfaces (HBM2/2E/3/3E and development of HBM4/4E), high-speed I/Os (MLink, UCIe, PCIe Gen7), and customized cell libraries optimized for performance, power, and area (PPA).

How MediaTek Compares Against ASIC Incumbents

Now, it’s worth noting that MediaTek enters a field with well-established competitors such as Broadcom and Marvell, and the battleground is fierce.

MediaTek's differentiation lies in three areas that the incumbents have been slower to address – its aggressive 448G SerDes development timeline, its near-package copper strategy as a cost-effective alternative, and its foundry-first relationship enabling earlier access to leading-edge nodes like N2P.

The "New MediaTek" Is Already Here

MediaTek's transformation from a mobile-first consumer chip company to a full-stack custom silicon partner for hyperscale data centers is an accomplished structural shift. The company has the process node relationships, the packaging depth, the interconnect IP, and now the high-profile ecosystem partnerships to compete credibly in the AI ASIC data center market.

FAQs

1. What does MediaTek offer as an ASIC data center partner? 

MediaTek is a full-stack custom ASIC design services partner and handles everything from chip architecture and RTL design through to tape-out (GDSII). They work with third-party foundries for fabrication, and OSAT partners for advanced packaging such as CoWoS and InFO.

2. How does a custom ASIC data center accelerator differ from standard GPU for AI workloads?

A custom ASIC data center accelerator is purpose-built for a defined workload (e.g., transformer inference, recommendation model training, or network packet processing), thus eliminating unused logic and delivering higher efficiency. 

3. How does NVIDIA NVLink Fusion collaboration matter for enterprise buyers?

NVLink Fusion allows custom AI silicon from third-party designers to connect natively into the NVLink high-speed AI fabric. MediaTek is one of the first adopters of this program, which means enterprise customers can deploy MediaTek-designed AI ASIC data center chips while still operating within the broader NVIDIA ecosystem.