A previous report from Economic Daily News once reported that, Innolux is set to sell its 4th Plant in Tainan (5.5-generation LCD panel plant), which was closed in 2023. Moreover, the report has cited rumors in the market, claiming that both Micron and TSMC have been actively exploring the acquisition.

Eariler on August 1st, the latest report from MoneyDJ further suggests that TSMC is almost certain to secure the deal, primarily to expand its CoWoS capacity. Regarding this matter, neither company has commented on these market rumors.

On July 30, Innolux announced its plan to dispose of the TAC plant-related real estate at the Southern Taiwan Science Park (STSP) D section, so as to bolster operational funds. To expedite the process and meet business needs, the board authorized Chairman Jim Hung to negotiate terms and sign relevant contracts with potential buyers.

Reportedly, the sale price must not be lower than the asset’s book value in the most recent financial statements, taking into account professional valuation reports and market information.

The recent trend of FOPLP (Fan-Out Panel Level Packaging) is said to have fueled speculation and discussions about Innolux’s plant sale, leading to rumors that TSMC is on the verge of announcing the purchase.

Yet, per MoneyDJ, TSMC’s current FOPLP applications in the AI field primarily involve stacking on rectangular substrates, integrating them into 2.5D and 3D packages. Initially, TSMC prefers to complete the entire FOPLP process in-house, integrating the front-end and back-end technologies of the 3D fabric platform.

For Innolux, besides gaining considerable non-operating income, this opportunity also raises the prospect of future collaboration.

Notably, this rumored move comes as construction at TSMC’s first P1 plant in the Southern Taiwan Science Park’s Chiayi Campus was halted due to the discovery of potential archaeological remains.

With P1 construction paused, TSMC has prioritized the construction of the second plant (P2). However, current capacity is very tight, and the time required to complete and ramp up P2 to mass production may not meet customer demand. The long-term substantial demand has driven TSMC to seek additional suitable locations in advance.

It is indicated by MoneyDJ that though TSMC’s Chiayi plant is currently facing delays due to the archaeological site issue, Chiayi is still planned to be a major hub for CoWoS production in the long term, with six phases planned. Previously, the company had considered expanding SoIC (System on Integrated Chips) production in Yunlin, but has recently decided to put those plans on hold.

Overall, the latest industry estimates suggest that CoWoS monthly capacity could reach about 35,000 to 40,000 wafers this year. On 2025, if outsourcing to packaging and testing subcontractors is included, capacity could potentially exceed 60,000 wafers, or even more next year.

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(Photo credit: Innolux)

After announcing the end of eight consecutive quarters of losses on July 30, according to a report from Economic Daily News, Innolux’s board of directors decided to authorize Chairman Jim Hung to handle real estate matters, confirming the rumors that the buildings at its 4th Plant in Tainan (5.5-generation LCD panel plant), which was closed last year, will be sold.

It is reported that two buyers, Micron and TSMC, are still in the bidding stage. Regardless of who wins the bid, Innolux will gain significant non-operating income.

According to Innolux’s announcement, to boost company operations and future development momentum, as well as to enhance operating funds, they plan to dispose of the TAC plant-related real estate at the Southern Taiwan Science Park (STSP) D section. Per a report from anue, the STSP D section refers to the 5.5-generation LCD panel plant that was closed last year.

Innolux has been promoting the transformation of its fully depreciated old plants. The 3.5-generation line at the Tainan facility has been repurposed for advanced packaging with Fan-Out Panel Level Packaging (FOPLP), and the 4-generation line has been converted to produce X-ray sensors (through Raystar Optronics), both of which are related to semiconductor products.

Regarding the 4th Plant developments at Tainan, as per a previous report from the Economic Daily News, Innolux stated on June 16 that, based on flexible strategic planning principles, the company continues to optimize production configurations and enhance overall operational efficiency. Some production lines and products are being adjusted to streamline and strengthen the group’s layout and development.

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(Photo credit: Innolux)

To continue advancing Moore’s Law, TSMC Chairman and President C.C. Wei personally confirmed that FOPLP (Fan-Out Panel-Level Packaging) is in full swing. According to a report from Commercial Times, TSMC has established an R&D team and production line, currently still in the initial stages. Wei further forecasted that related achievements might be seen within three years.

Additionally, the sources cited by the same report also revealed that TSMC is interested in acquiring Innolux’s 5.5-generation LCD panel plant as well, partnering with Taiwanese companies to tackle new packaging processes. However, TSMC has not confirmed these rumors but emphasized that the company is continuously searching for suitable locations for expansion.

On average, die size continues to grow by 5-10%, reducing the number of chips that can be extracted from a single wafer and further squeezing wafer and advanced packaging capacity. Industry sources cited by Commercial Times believe that converting from wafer-level to panel-level packaging is more cost-effective.

Moreover, in response to Intel’s plan to mass-produce the industry’s first glass substrate technology for next-generation advanced packaging between 2026 and 2030, TSMC has started researching related glass substrate technologies to meet customer demands.

TSMC introduced the FOWLP technology named InFO (Integrated Fan-Out) in 2016, first used in the iPhone 7’s A10 processor. Subsequently, assembly and testing facilities actively promoted FOPLP solutions, looking to attract customers with lower production costs.

Currently, per the sources cited by Commercial Times, InFO has only one customer. Fan-Out packaging is a familiar area for TSMC, and future HPC (high-performance computing) clients like NVIDIA and AMD might adopt next-generation advanced packaging technology, replacing existing materials with glass substrates.

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(Photo credit: TSMC)

With the surge in new applications like AI, advanced packaging remains a hot topic, particularly with FOPLP (Fan-Out Panel Level Packaging) technology gaining renewed attention. According to sources cited by a report from MoneyDJ, leading semiconductor foundry TSMC has officially formed a team, currently in the “Pathfinding” phase, and is planning to establish a mini line with a clear goal of advancing beyond traditional methods.

TSMC introduced the FOWLP (Fan-Out Wafer Level Packaging) technology named InFO (Integrated Fan-Out) in 2016, first used in the iPhone 7’s A10 processor. Subsequently, assembly and testing facilities actively promoted FOPLP solutions, looking to attract customers with lower production costs, yet faced ongoing technical challenges. Therefore, current terminal applications remain within mature processes, such as PMIC (Power Management IC) products.

However, per the sources cited by the same report, TSMC’s move to transition advanced packaging technology from wafer level to panel level is more than just talk—it’s becoming a reality. It is reported that TSMC is planning to use rectangular substrates measuring 515mm by 510mm, with a dedicated team already conducting research and planning to establish a mini line.

The source further mentioned that, TSMC’s development of FOPLP can be seen as a rectangular version of InFO, offering advantages such as lower unit costs and larger package sizes.

This advancement could further integrate other technologies on TSMC’s 3D fabric platform, paving the way for 2.5D/3D advanced packaging solutions to serve high-end product applications. This approach could be regarded similar to a rectangular CoWoS, currently targeted at the AI GPU sector with NVIDIA as a customer. If progress continues smoothly, these developments could potentially debut between 2026 and 2027.

On the AMD front, it is understood that their initial partners for FOPLP are ASE Technology and PowerTech Technologies, with potential applications in PC or gaming console chips. Reportedly, it’s suggested that previous packaging methods for PCs and gaming consoles primarily used FC-BGA, but upcoming new products may potentially upgrade to CoWoS level.

Sources cited by the report note that in the early stages of FOPLP, players like PowerTech Technologies, Innolux, and ASE Technology faced challenges and intermittent demand. To allocate resources effectively, equipment suppliers have been conservative in their investments in related fields, focusing mainly on adjusting specifications to meet customer demands. With TSMC now officially joining, equipment suppliers are shifting to a more proactive stance in preparation for upcoming developments.

In summary, the development of the FOPLP ecosystem hinges largely on TSMC’s role. TSMC is expected to maintain leadership in the high-end segment, while packaging and testing firms will cater to the mid-to-high-end markets. Semiconductor experts believe that in the realm of high-speed computing, CoWoS will remain mainstream for the next 3 to 5 years, with advanced 3D packaging like SoIC gaining prominence in high-end applications, solidifying TSMC’s position as a key player.

For packaging and testing companies, the key lies in product upgrades that offer cost-effectiveness. The success of FOPLP as the next generation of advanced packaging hinges on how chip manufacturers position their products, address yield issues related to warpage, and ensure overall performance and pricing that justify customer investment.

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(Photo credit: TSMC)

Taiwanese panel company Innolux have said to be involving in collaborating with leading global memory manufacturers. According to a report from the Economic Daily News, plans are underway to repurpose its 4th Plant in Tainan (5.5-generation LCD panel plant) for AI-related semiconductor applications, specifically targeting back-end packaging.

Sources cited in the report indicate that, based on the strategies of the top three global memory manufacturers, the partner in this collaboration is likely a memory manufacturer that already has a presence in Taiwan and seeks to expand its capacity there. Innolux’s advantage lies in its advanced panel-level fan-out packaging (FOPLP), which is poised to make a substantial impact in the AI field. However, these reports have not been confirmed by Innolux or any global memory giants.

Regarding the 4th Plant developments at Tainan, Innolux stated on June 16 that, based on flexible strategic planning principles, the company continues to optimize production configurations and enhance overall operational efficiency. Some production lines and products are being adjusted to streamline and strengthen the group’s layout and development.

The surge in AI demand has driven the need for advanced chip heterogenous integration and high-end packaging technologies to meet the high-performance application requirements of AI devices. Targeting these opportunities, Innolux has reportedly repurposed its Tainan 3.5-generation and 4-generation LCD panel production lines for semiconductor-related uses, including FOPLP and X-ray sensors.

Sources cited in the report also revealed that Innolux’s transformation efforts are making progress. After closing the 5.5-generation LCD panel production at the 4th Plant last year, the company has gradually reassigned staff to other facilities. To revitalize capacity and assets, Innolux has been in close contact with leading global memory manufacturers, aiming to develop AI-related applications.

Currently, the three major global memory manufacturers are actively developing high-bandwidth memory (HBM) for AI servers. South Korea’s SK Hynix is the most proactive in collaborating with Taiwanese companies. SK Hynix has partnered with TSMC to aggressively target the AI market. As per a report from Korean media outlet The Korea Herald,  SK Group Chairman Chey Tae-won recently visited TSMC Chairman C.C. Wei to ensure continued close cooperation on the next-generation HBM.

On the other hand, Micron has established memory production in Taiwan but does not yet have HBM capacity for AI servers in the region. Meanwhile, Samsung does not have direct AI cooperation with Taiwanese companies in the memory sector.

Sources cited in the report from Economic Daily News indicate that Innolux is engaging with one of these three major international memory manufacturers, focusing on new semiconductor applications. As Innolux is advancing into the promising glass substrate packaging business through panel-level fan-out packaging, this technology is expected to be combined with memory applications for AI development. Therefore, the developments at its 4th Plant in Tainan are receiving considerable attention.

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(Photo credit: Innolux)