[News] Innolux’s 4th Plant in Tainan Reportedly to be Secured by TSMC

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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.

Read more

• [News] Innolux Confirms Sale of Tainan Plant 4, with Micron & TSMC Reportedly in the Bidding Stage
• [News] TSMC Halts Chia-Yi Plant Construction Due to Relic Found, Quickly Initiates Preparation for 2nd Plant

(Photo credit: Innolux)