JCET Group, China’s largest semiconductor packaging and testing company, has announced a 7.8 billion yuan ($1.15 billion) investment to construct a new advanced packaging facility in Shanghai. The strategic move underscores China’s intensifying efforts to build a self-reliant semiconductor supply chain, focusing heavily on the “back-end” of chip manufacturing as a critical area for technological advancement amid ongoing US export controls.
The new facility, to be located in the Lingang Special Area of Shanghai’s pilot free-trade zone, will focus on cutting-edge packaging technologies, including 2.5D and 3D packaging, which are essential for high-performance computing and artificial intelligence applications.
The Importance of Advanced Packaging
Historically, the semiconductor industry has focused primarily on the “front-end” of manufacturing, shrinking transistor sizes to pack more computing power onto a single piece of silicon. However, as Moore’s Law slows down and the physical limits of miniaturization are reached, the industry is increasingly turning to advanced packaging to drive performance gains.
Advanced packaging involves combining multiple smaller chips, or “chiplets,” into a single, highly integrated package. This approach allows manufacturers to mix and match different components—such as logic, memory, and power management, optimizing performance, reducing power consumption, and lowering manufacturing costs.
For China, advanced packaging represents a crucial strategic opportunity. While Chinese foundries like SMIC still lag global leaders like TSMC in front-end manufacturing (particularly at sub-5-nanometer nodes), China has a much stronger position in back-end packaging and testing. By mastering advanced packaging techniques, Chinese firms can potentially bridge the performance gap, creating highly capable chip systems even if the individual chiplets are manufactured using older, less advanced nodes.
JCET’s Strategic Expansion
JCET’s new Shanghai plant is designed to capitalize on this opportunity. According to the company’s filing with the Shanghai Stock Exchange, the facility will focus on high-density wafer-level packaging, a technology critical for the production of AI accelerators, data center processors, and advanced automotive chips. JCET said the move was aimed at accelerating the expansion of its “high-end” advanced-packaging capacity and enhancing the company’s overall competitiveness.
The project will be funded through a combination of internal resources and bank loans, with construction expected to take several years. Once fully operational, the plant is projected to generate substantial annual revenue and solidify JCET’s position as a top-tier global player in the outsourced semiconductor assembly and test (OSAT) market.
Shanghai’s Semiconductor Ambitions
The choice of Shanghai’s Lingang Special Area for the new plant is highly strategic. Lingang has been designated by the Chinese government as a core hub for the country’s integrated circuit industry. It already hosts facilities for several major semiconductor players, including SMIC and GTA Semiconductor.
By locating the new plant in Lingang, JCET will benefit from a robust local ecosystem, including access to specialized talent, favorable tax policies, and proximity to key customers and suppliers. The local government has actively courted semiconductor investments, offering significant subsidies and streamlined regulatory processes to attract top-tier tech firms.
A Global Race for Packaging Supremacy
JCET’s expansion does not occur in a vacuum. The global advanced packaging market is highly competitive, with major players from Taiwan, South Korea, and the United States racing to scale their capabilities.
ASE Technology Holding, the world’s largest OSAT company and JCET’s primary Taiwanese rival, has been aggressively expanding its advanced packaging capacity amid surging AI demand. Intel, which operates its own packaging facilities through its Foundry Services division, has made advanced packaging a cornerstone of its strategy to reclaim leadership in the data center market. TSMC’s CoWoS (Chip on Wafer on Substrate) technology, used to package Nvidia’s flagship AI GPUs, has become one of the most sought-after services in the semiconductor industry.
For JCET to compete at this level, the Shanghai investment is not just strategically desirable—it is existentially necessary. The new facility is intended to close that gap with global leaders, particularly in the high-margin advanced packaging segment where AI demand is concentrated. JCET’s Shanghai-listed shares have surged 147 percent since the beginning of the year on the back of strong growth.
Navigating the Tech War
JCET’s expansion comes amid intense geopolitical pressure on China’s semiconductor industry. The United States has implemented sweeping export controls designed to restrict China’s access to advanced chips and the equipment needed to manufacture them.
In this constrained environment, advanced packaging has become a lifeline for Chinese tech giants. Companies like Huawei are increasingly relying on sophisticated packaging techniques to combine domestically produced chips into systems that can rival the performance of restricted foreign hardware.
By investing heavily in 2.5D and 3D packaging capabilities, JCET is positioning itself as a critical enabler of China’s tech self-reliance drive. The new Shanghai plant will not only serve domestic clients seeking to bypass US restrictions but also enhance JCET’s competitiveness in the global market, where demand for advanced packaging is skyrocketing due to the AI boom.
As the semiconductor battleground shifts from transistor scaling to system-level integration, JCET’s $1.15 billion bet on Shanghai signals that China is determined to dominate the back-end of chipmaking, turning packaging into a potent weapon in the ongoing tech war.
