Skip to navigationSkip to main contentSkip to right columnADVERTISEMENTSubhasree KarThu, July 16, 2026 at 6:45 PM GMT+2 4 min readAi chip by Quality Stock Arts via ShutterstockTower Semiconductor (TSEM) is making one of the biggest investments in its history, and it could significantly strengthen the company's long-term growth outlook. The specialty chip foundry plans to invest $3 billion to expand its manufacturing footprint in Japan, supported by $1 billion in grants from the Japanese government. The dual-track expansion will boost production of silicon photonics, silicon-germanium, and advanced packaging technologies that are increasingly critical for artificial intelligence (AI), data centers, optical networking, and next-generation communications.The first phase of the project will convert Tower's Arai facility into a 300mm silicon photonics manufacturing plant, with full operations expected by the fourth quarter of 2027, while the second phase involves constructing a new 300mm fabrication facility in Japan.More News from BarchartMicron Stock Is Off 31% From Its High. Why This Could Be the Best Time to Buy.Nvidia Stock Could Still Soar 140% to Reach $500, Says Wall StreetMU Stock Alert: What to Watch as Micron Takes a Stake in GlobalWafersTired of missing midday reversals? The FREE Barchart Brief newsletter keeps you in the know. Sign up now!Management believes the investment will materially expand capacity and position the company to capture accelerating demand from AI infrastructure customers. Reflecting that confidence, Tower raised its 2028 financial outlook, while investors welcomed the announcement, sending TSEM shares higher, underscoring Wall Street's optimism about the company's long-term growth prospects.Tower Semiconductor is a semiconductor foundry specializing in high-value analog and mixed-signal integrated circuit technologies, including silicon photonics, RF CMOS, SiGe, CMOS image sensors, and power management solutions. Headquartered in Migdal Haemek, Israel, the company serves diverse end markets, from automotive and industrial to AI infrastructure and communications. Tower Semiconductor's market cap is $28.2 billion.TSEM has been one of the semiconductor sector's standout performers in 2026, reflecting growing investor confidence in its expanding role in specialty chip manufacturing. The stock has delivered a solid gain of 438.9% over the past 52 weeks and has advanced 109.5% year-to-date (YTD), significantly outperforming the broader market.Momentum accelerated on July 14, when shares surged 11.24% after the company unveiled plans to invest $3 billion to expand manufacturing capacity in Japan with support from a $1 billion government grant. The announcement, coupled with sharply higher long-term financial targets, reinforced optimism that Tower is well positioned to capitalize on booming demand for AI, silicon photonics, and advanced semiconductor technologies, driving another strong leg higher in the stock.Terms and Privacy PolicyEU DSA contactPrivacy & Cookie SettingsMore Info