From a radical foundry idea to the backbone of advanced chips: how TSMC changed semiconductors
TSMC became one of the most important companies in modern technology without building a consumer brand around its own processors.
Dr Morris Chang founded Taiwan Semiconductor Manufacturing Company in 1987 around a business model that was unusual at the time: manufacture chips designed by other companies and avoid competing with those customers by selling TSMC-branded semiconductor products.
The idea became known as the pure-play foundry model. It helped enable a generation of fabless chip designers that could focus on architecture and products without spending billions building advanced semiconductor factories of their own.
As of 18 September 2026, TSMC is led by chairman and chief executive Dr C.C. Wei. The company manufactures chips for hundreds of customers across high-performance computing, smartphones, automotive, IoT and consumer electronics while expanding production beyond Taiwan.
Morris Chang founded TSMC around manufacturing neutrality
Morris Chang had spent decades in the semiconductor industry before founding TSMC in Taiwan in 1987.
The company’s key idea was structural. Traditional semiconductor businesses often designed and manufactured their own chips. TSMC would concentrate on manufacturing and serve companies that needed factories but did not want to build them.
Because TSMC did not design competing end products, customers could entrust manufacturing to the foundry without facing a supplier that was also a direct rival.
TSMC’s official company profile credits this model with helping drive the rise of the global fabless semiconductor industry.
The pure-play foundry changed the economics of chip design
Semiconductor factories are enormously expensive and become more difficult to justify as process technology advances.
A pure-play foundry spreads that manufacturing investment across many customers. Chip designers can therefore concentrate resources on architecture, software and product development while using a specialist manufacturer.
This separation created room for companies whose competitive advantage was chip design rather than factory ownership.
The model became increasingly important as leading-edge fabrication moved into multibillion-dollar facilities requiring extreme ultraviolet lithography and exceptionally complex process control.
TSMC expanded internationally early
TSMC established a North American subsidiary in 1988 and a European operation in 1989.
The company listed its ordinary shares on the Taiwan Stock Exchange in 1994 and later established an American Depositary Receipt programme in New York.
Its international presence allowed it to work closely with chip designers around the world even while the majority of advanced manufacturing remained in Taiwan.
Process leadership became the heart of TSMC’s value
As transistor dimensions shrank, manufacturing technology became an increasingly important competitive advantage.
TSMC invested heavily in successive process generations, moving through planar CMOS, FinFET and eventually gate-all-around nanosheet architectures.
The foundry model means customers can use those manufacturing technologies for very different products. The same process family can support smartphone processors, AI accelerators or other high-performance chips, depending on what a customer designs.
FinFET helped TSMC through a major transistor transition
FinFET replaced the traditional planar transistor with a three-dimensional fin-shaped channel that allows the gate to control current from multiple sides.
The architecture became essential as the industry tried to maintain performance and reduce leakage at smaller dimensions.
TSMC’s FinFET generations established it as a major supplier for advanced mobile and high-performance computing chips.
N2 moved TSMC into gate-all-around nanosheets
TSMC’s N2 process marked another major architectural shift by replacing FinFETs with gate-all-around nanosheet transistors.
N2 entered high-volume manufacturing in the fourth quarter of 2025. By the second quarter of 2026, TSMC said N2 already represented 3% of wafer revenue and was entering a steep production ramp.
The process is aimed at smartphones, high-performance computing and AI workloads.
TechnologyBlog.co.za has separately covered the architecture of TSMC N2, making that article a natural internal link from this company history once the final relationship is configured.
Advanced packaging became as important as transistor scaling
Modern high-performance chips increasingly depend on how multiple dies and high-bandwidth memory are connected, not only on the transistor process used to manufacture each die.
TSMC expanded technologies such as CoWoS and other advanced packaging platforms to address that need.
The AI infrastructure boom increased demand for packaging capable of combining large accelerators with high-bandwidth memory.
This pushed the foundry business beyond wafer fabrication and deeper into system-level semiconductor integration.
TSMC’s factories remained heavily concentrated in Taiwan
Taiwan remains the centre of TSMC’s manufacturing network.
The company operates multiple large wafer fabs there and continues to invest in new process generations on the island.
That concentration has made TSMC strategically important not only to customers but to governments concerned about semiconductor supply resilience.
Arizona, Japan and Europe broadened the manufacturing footprint
TSMC has expanded manufacturing outside Taiwan.
Its Arizona operation became the company’s major advanced-manufacturing project in the United States. The investment expanded substantially from its original plan and, by 2026, TSMC was outlining a much larger long-term manufacturing, packaging and research footprint in Arizona.
Japan Advanced Semiconductor Manufacturing established production in Japan, while TSMC also began a European specialty-technology project in Dresden, Germany.
These projects do not remove Taiwan’s central role, but they broaden the geographic footprint of a supply chain that has become strategically important to many economies.
C.C. Wei became chairman and CEO
Morris Chang retired after building TSMC into the world’s leading pure-play foundry.
C.C. Wei joined TSMC in 1998 and held a series of senior technical and operating roles. He served as co-CEO, then CEO from 2018, before becoming chairman and chief executive in June 2024.
As of 2026, Wei leads a company balancing enormous demand for advanced AI manufacturing with the need to invest in future process technology and global production capacity.
The customer list is broad even when individual names are confidential
TSMC often cannot discuss specific customer products before those companies make their own announcements.
Its 2025 company profile says the foundry manufactured 12,682 different products using 305 technologies for 534 customers.
Those chips served markets including high-performance computing, smartphones, IoT, automotive and digital consumer electronics.
The scale illustrates why TSMC is infrastructure for the semiconductor industry rather than simply another chip brand.
How TSMC changed the technology industry
The pure-play foundry model separated chip design from chip manufacturing in a way that created room for entire categories of companies.
A fabless semiconductor company can invest in processor architecture and software without constructing a leading-edge fab. TSMC can spread the cost of manufacturing research and factory equipment across many customers.
The relationship is mutually dependent: designers need leading manufacturing, while TSMC needs customers capable of creating valuable chips on each new process.
How TSMC became what it is today
TSMC’s history is unusual because the company became indispensable by deliberately avoiding the consumer products that made many of its customers famous.
Morris Chang’s founding model focused the business on manufacturing neutrality. Successive process generations created technical leadership, advanced packaging expanded the scope of the foundry, and global expansion responded to the strategic importance of semiconductor supply.
As of 18 September 2026, TSMC remains a pure-play foundry under C.C. Wei rather than a designer of branded CPUs or GPUs.
That makes this article the natural TechnologyBlog.co.za cornerstone for future TSMC process-node, semiconductor-manufacturing, fab-expansion and company-news coverage.
Primary sources checked include TSMC’s official company profile, annual reports, corporate timeline and executive biographies. Information reflects public material available on 18 September 2026.