Our N2 technology development is progressing well with device performance and yield on track or ahead of plan. N2 is on track for volume production in 2025 with the ramp of similar to N3. As part of our N2 technology platform, we also developed the N2 with backside power rail solution, which is better suited for specific HPC applications based on performance, course, and maturity considerations and we expect at power rail will be available in the second half of 2025 to customers with production in 2026. With our technology of continuous enhancement, N2 its derivative will further extend our technology leadership position and enabled TSMC to capture the AI-related course opportunities going to the future. Finally, let me talk about our specialty technology strategies at mature mode.
For TSMC today around 70% of our total revenue is 16-manometer and more advanced node, which ranging contribution from 3-nanometer and 2-nanometer technologies in the next several years. This number will only increase. Our mature node exposure is a run 20% of our total revenue. TSMC’s strategy at mature node is to what we closure with strategic partner to develop specialty technology solutions to mid-customers the requirement and create differentiated and long-lasting where you to customers. Now focus is to pure higher capacity for specialty technologies rather than just a nominal capacity. To the development of the differentiated specialty technologies, the profitability of our mature node can be around our corporate average gross margin. Looking ahead, we forecast 28-nanometer will be the sweet spot for our embedded memory applications and we expect our long-term structural demand at 28-nanometer to be supported by multiple types of specialty technologies.
Thus, we are expanding our 28-nanometer specialty manufacturing capacity overseas to support the long-term structural market demand. We believe demand for the differentiated specialty technology will remain steady despite the potential industry capacity increase and our utilization rate and structural profitability, and but you all know can be well protected in the future. This concludes my present prepared remarks. And now, let me turn the microphone over to Mark.
Mark Liu : Thank you, C.C. Good afternoon, everyone. First, let me talk about our global manufacturing footprint update. TSMC’s mission is to be the trusted technology and capacity provider for the global logic IC industry for years to come. In today’s fractured globalization environment, our strategy is to expand our global manufacturing footprint to increase our customer trust, expand our future growth potential, and reach for more global talent. Our overseas decision are based on our customers’ needs and a necessary level of government subsidy or support. This is to maximize the value for our shareholders. Firstly, in Japan, we are building a specialty technology fab in Kumamoto, which will utilize 12-nanometer, and 16-nanometer, and 22-nanometer, and 28-nanometer process technologies.
We will hold an opening ceremony for this fab on February ’24, next month. And volume production is on track for the fourth quarter of 2024. In Arizona, we are in close and constant communication with U.S. government on incentive and tax credit support and making strong progress in facility supply chain infrastructure, utility supply, and equipment installation for our first fab. We continue to work closely and develop strong relationships with our local union and trade partners in Arizona, including recently signed an agreement with Arizona Building and Construction Trades Council our new framework for cooperation. This agreement extends our collaboration across enhanced workforce training and development, shared commitment to site safety, hiring local workers, and establishing regular communication.
It is a win-win for all parties. We are well on track for volume production of N4, or 4-nanometer process technology in first half of ’25 and are confident that once we begin operations, we will be able to deliver the same level of manufacturing quality and reliability in Arizona as from our fabs in Taiwan. In Europe, we plan to build a specialty technology fab invest in Germany, focusing on automotive and industrial applications with our joint venture partners. We continue to be in close communication with the German federal, state, and city governments and their commitment to this project remains strong and unchanged. Fab construction is scheduled to begin in Q4 2024 this year. In Taiwan, of course, we continue to invest in and expand our advanced technology capacities to support our customers’ needs and their growth.
Given the robust multiyear demand for our 3-nanometer technologies, we are expanding our 3-nanometer capacity in Taiwan Science Park. We are also preparing our N2 volume production starting in 2025. We plan to build multiple fabs or multiple phases of 2-nanometer technologies in both Hsinchu and Kaohsiung Science Parks to support a strong structural demand from our customer C.C. just mentioned. In Kaohsiung Science Park, the government approval process is ongoing and is also on track. While the initial cost of overseas fab, I previously mentioned are higher than TSMC’s fab in Taiwan. We are confident to manage and minimize the cost gap and remain committed to deliver profitable growth and maximize the value for our shareholders. Now let me talk about my retirement.
