South Korean media reports that the main suppliers of artificial intelligence (AI) chip packaging are concentrated in TSMC and ASE Technology Holding Co., which have been actively expanding production to meet the growing market demand. Despite efforts to develop technology and invest, South Korean companies like Samsung Electronics have not been able to narrow the gap with TSMC and ASE.

According to the Chosun Ilbo, industry insiders indicated that TSMC is expanding its advanced packaging (CoWoS) capacity by selecting a site in the southern region, while ASE also announced the construction of a second packaging and testing factory in California, USA, and plans to build another in Mexico. The rapid growth of the AI chip market highlights the increasing importance of semiconductor packaging and testing. As the benefits of semiconductor process miniaturization diminish and production costs rise, advanced packaging that can connect multiple components has become an ideal alternative solution. Some organizations predict that the semiconductor packaging market is expected to grow by more than 10% annually and expand to USD 90 billion by 2030.

Taiwanese companies like TSMC and ASE benefit a lot, almost monopolizing the contract manufacturing of AI chips for companies like NVIDIA and AMD. In terms of chip manufacturing, TSMC aims to double its CoWoS capacity from the previous year to meet increasing orders. TSMC recently announced plans to build two new advanced packaging factories in the southwest. The construction of the first factory was paused due to the discovery of ancient artifacts, but TSMC quickly sought a new site and announced an expansion of CoWoS facilities investment by 2025.

ASE, serving customers including Qualcomm, Intel and AMD, is also striving to increase equipment investment to meet rising orders. ASE, with the highest market share in the semiconductor packaging and testing field, is increasing its capacity and considering building a factory in Japan to match the growing demand. ASE’s CEO Wu Tianyu stated that they are looking for a location in Japan with a solid semiconductor ecosystem for the new factory.

Samsung has also announced packaging investment plans. The company intends to raise the investment in the new plant in Taylor, Texas, USA from USD 17 billion to more than USD 40 billion for the construction of an advanced packaging research and development center and facilities, in which it will allocate over KRW 2 trillion annually to expand advanced packaging production lines.

South Korean semiconductor back-end packaging and testing (OSAT) companies such as Hana Micron and Nepes are also striving for AI chip packaging orders based on technical development. Hana Micron, the leading OSAT company in South Korea, has announced its commitment to developing 2.5D AI semiconductor packaging. Nepes is developing Package on Package (PoP) technology, which integrates different semiconductors into one chip, with a target for commercial mass production in the second half of 2025.

Despite the efforts of South Korean companies, it is difficult to narrow the gap with Taiwanese companies in the short term. Taiwanese companies have actively developed advanced semiconductor packaging and commercializing CoWoS at a earlier time, while South Korean packaging companies lag in accumulated technologies. South Korean industry insiders point out that TSMC and ASE have been collaborating for over 30 years. Therefore, as TSMC secured a large number of AI chip orders, it would prove a boon to Taiwan’s packaging ecosystem. In contrast, South Korea’s packaging industry, which has long focused on the memory production market, still has a long way to go to expand its market and even compete with Taiwanese companies.

According to a report from CNA, Taiwanese semiconductor testing and packaging giant ASE announced on June 21st that it will collaborate with Hung Ching Development & Construction Corporation to jointly build the K28 plant in Kaohsiung. Scheduled for completion in Q4 2026, the facility will reportedly focus on advanced packaging and final testing in order to meet the high-performance computing and cooling demands of AI chips.

ASE’s CFO Joseph Tung stated that ASE Semiconductor is planning for operational growth at its Kaohsiung facilities. To meet the demand for advanced packaging processes, high-performance computing for AI chips and cooling, the company is developing land in Dashe, Kaohsiung in two phases. The first phase, K27 plant, was completed and moved-in in 2023, while the K28 plant, the second phase, aims to be completed by Q4 2026.

As reported by CNA citing sources, ASE Kaohsiung Plant contributes approximately 20% to ASE Technology Holding Co., Ltd.’s total revenue. The plant specializes in providing services such as packaging, wafer bumping, probe testing, materials, and final testing. It has also developed several smart factories focusing on advanced processes, including Fan-out packaging, System-in-Package (SiP), wafer bumping, and Flip Chip packaging.

These technologies are primarily used in automotive, medical, IoT, high-speed computing, artificial intelligence, and application processor fields.

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• [News] ASE Expands Production at Kaohsiung Plant, Focusing on Advanced Packaging for AI Chips

Due to the impact of international situations and uncontrollable factors, the global semiconductor supply chain is undergoing a shift. According to a report from WeChat account DRAMeXchange, the Southeast Asian region, with its advantages in labor and development conditions, has become the preferred location for major global companies. Countries such as Malaysia, India, and Singapore have been targeted by many manufacturers, who are rapidly setting up operations to secure a foothold.

On June 5, Taiwan-based contract chipmaker Vanguard International Semiconductor Corp. (VIS) announced to team up with Netherlands-based semiconductor supplier NXP Semiconductors N.V. to set up a joint venture, VisionPower Semiconductor Manufacturing Company (VSMC), and build a 12-inch fab in Singapore.

The fab will have an investment of approximately USD 7.8 billion. VIS will invest USD 2.4 billion and take a 60% stake, with NXP to invest USD 1.6 billion and a 40% share. The fab will be operated by VIS.

Besides, both parties have promised to allocate a total of USD 1.9 billion of long-term capacity security deposit and usage fees, with the remaining funds (Loans included) to be provided by third parties.

VSMC will run as an independent wafer manufacturing service provider, offering a certain proportion of its capacity to both partners. By 2029, the fab’s monthly 12-inch wafer capacity is expected to reach 55,000 pieces, which is projected to create around 1,500 jobs in Singapore. Following the successful mass production of the first fab, both sides will consider building a second one.

This fab will use 130nm to 40nm technologies to produce mixed-signal, power management, and analog products for markets including automotive, industrial, consumer electronics, and mobile terminals. Relevant technology licensing and transfers are expected to come from TSMC. VSMC will commence construction of the first fab in 2H24 , pending approval from relevant regulatory authorities, and it is expected to start mass production in 2027.

Currently, VIS has five 8-inch fabs, respectively located in Taiwan and Singapore. Three of them are based in Hsinchu (Taiwan) and one in Taoyuan (Taiwan). In 2023, the average monthly capacity was about 279,000 8-inch wafers.

On this collaboration with NXP, VIS Chairman Fang Leuh stated that both parties wish to own a 12-inch fab as they currently only have 8-inch fabs. More than half of the new fab’s capacity has already reserved upon long-term commitments from customers, including NXP. He also noted that setting up a fab in Singapore offers several advantages.

Since VIS is held by TSMC, industry experts believe that the establishment of the new VIS fab is driven in part by the need to meet the demands of TSMC’s mature process customers. Mature processes above 90nm account for a small single-digit percentage of TSMC’s revenue but retaining all customers is also necessary to match orders from various manufacturing capacities.

As such, VIS will take over TSMC’s customer orders. Influenced by multiple factors, the order transfer effect is expanding, and VIS has recently received new orders from several customers, like Qualcomm and MPS. That means order transfer effect in 2H24 has become evident.

It is worth noting that Singapore is being seen as a critical hub of the Asian semiconductor industry. It currently boasts a complete semiconductor industry chain, covering design, manufacturing, packaging, test, equipment, materials, and distribution, with more than 300 semiconductor-related companies already established.

According to another report from WeChat account DRAMeXchange, multitudes of semiconductor companies, including Texas Instruments, STMicroelectronics, Infineon, Micron, GlobalFoundries, TSMC, UMC, VIS, and ASE, have set up branches or expanded production in Singapore.

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(Photo credit: VIS)

The surge in demand for advanced packaging is being primarily propelled by artificial intelligence (AI) chips. According to industry sources cited by CNA, TSMC’s CoWoS production capacity is set to double this year, yet demand continues to outstrip supply. In response, NVIDIA has enlisted the help of packaging and testing facilities to augment its advanced packaging capabilities.

In addition, to address the imbalance between supply and demand for advanced packaging due to AI, semiconductor backend specialty assembly and testing (OSAT) companies such as ASE Technology Holding (ASE), Powertech Technology, and KYEC have expanded their capital expenditures this year to enhance their advanced packaging capabilities, aligning with the needs of their customers.

AI and high-performance computing (HPC) chips are driving the demand for CoWoS advanced packaging. As per sources interviewed by CNA, from July to the end of last year, TSMC actively adjusted its CoWoS advanced packaging production capacity, gradually expanding and stabilizing mass production.

The source further indicates that in December of last year, TSMC’s CoWoS monthly production capacity increased to 14,000 to 15,000. It is estimated that by the fourth quarter of this year, TSMC’s CoWoS monthly production capacity will significantly expand to 33,000 to 35,000.

Per an earlier report from Commercial Times, TSMC has been outsourcing part of its CoWoS operations for some time, mainly targeting small-volume, high-performance chips. TSMC maintains in-house production of the CoW, while the back-end WoS is handed over to test and assembly houses to improve production efficiency and flexibility. 

However, the demand for advanced packaging capacity for AI chips still outstrips supply. Sources cited by CNA also reveal that NVIDIA has sought assistance from packaging and testing subcontractors outside of TSMC to augment their advanced packaging capabilities.

Amkor, among others, began gradually providing capacity support from the fourth quarter of last year, while SPIL, a subsidiary of ASE, is slated to commence supply in the first quarter of this year.

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• [News] AMD Eyes CoWoS-like Supply for AI Chips with TSMC Full Capacity
• [News] CoWoS Capacity Shortage Challenges AI Chip Demand, while Taiwanese Manufacturers Expand to Seize Opportunities

(Photo credit: TSMC)

TSMC operates at full capacity, AMD aims for AI chips reportedly seeks CoWoS-like supply chain.

In 2023, NVIDIA led the global AI chip development, and in 2024, the global demand for AI chips is expected to continue to surge due to the expansion of end-user applications such as PCs and mobile phones.

Meanwhile, AMD has not stopped in AI chip development either, with the expected MI300 products poised to heat up the global AI business opportunities. However, the key to supply lies in advanced packaging, and AMD will seek outsourced semiconductor assembly and test (OSAT) service providers to offer support similar to CoWoS.

According to Taiwan’s Commercial Times, TSMC’s CoWoS capacity has long been fully loaded, and even if it expands production this year, it will mainly be reserved for NVIDIA. Market sources pointed out that TSMC will continue to increase CoWoS capacity to support AMD’s demand, but it takes six to nine months to establish a new production line. Therefore, it is expected that AMD will seek cooperation with other companies with CoWoS-like packaging capabilities. ASE, Amkor, Powertech, and KYEC are the first batch of potential partners.

TSMC has been outsourcing part of its CoWoS operations for some time, mainly targeting small-volume, high-performance chips. TSMC maintains in-house production of the CoW, while the back-end WoS is handed over to test and assembly houses to improve production efficiency and flexibility. This model will continue in the future 3D IC generation.

ASE and Amkor both received WoS orders last year. ASE has strengthened the development of advanced packaging technology and has a complete solution for the entire CoWoS process. ASE previously stated that it sees the strong potential of AI and expects related revenue to double in 2024.

According to reports citing market sources, the monthly production capacity of the ASE Group’s 2.5D packaging is about 2,000 to 2,500 pieces. Some experts believe that test and assembly houses will maintain the business model of TSMC or UMC providing the interposer. Therefore, in 2024, a significant increase in CoWoS production capacity is expected.

KYEC is responsible for testing Nvidia AI chips and is expected to benefit from AMD’s search for CoWoS-like capacity. Nvidia is currently KYEC’s second-largest customer.

KYEC’s testing of Nvidia A100 and H100 chips is mainly in the final test (FT), with a market share of up to 70%. KYEC provides comprehensive IC burn-in testing, has self-developed burn-in equipment, and has been in the industry for more than a decade, accumulating many patents and technologies.

AMD stated at the end of 2023 that AI chip revenue could reach US$2 billion in 2024, excluding other HPC chips. AMD pointed out that the annual compound growth rate of the AI chip market in the next four years will reach 70%, and it is estimated that it will reach US$400 billion in 2027.

(Image: AMD)