India is committing trillions of rupees to semiconductors through the India Semiconductor Mission, PLI, and design-linked incentives. The scale of the bet is undeniable. Rs 1.6 trillion, to be precise. But the uncomfortable truth behind the headlines is that such a huge amount of capital only buys entry. It does not buy capability, and the distance between entry and global relevance is measured not in money, but in engineers and time.
Semiconductors are often spoken about as a single industry. In practice, they are built across three very different engineering worlds: chip design, wafer fabrication, and assembly, testing, and packaging. Each stage demands a distinct skill set, follows a different learning curve, and operates on vastly different timelines. Treating them as interchangeable is one of the most common mistakes in semiconductor policy discussions.
What makes this industry fundamentally different from other industrial projects is the scale at which it operates. Semiconductor manufacturing happens at the atomic level. Chips are built on silicon wafers through a long sequence of steps, each of which deposits, patterns, adds, or removes material measured in nanometres. At this scale, even minor variations affect yield, and small contamination events can scrap an entire batch of wafers. To compound the complexity, these steps are repeated hundreds to thousands of times for a single chip.
This is why fabs do not become productive the moment construction is complete. They take years to stabilise. Output improves only after prolonged cycles of trial, error, adjustment, and failure analysis. As a result, semiconductor manufacturing relies heavily on tacit knowledge—experience learned on the fab floor and rarely captured fully in manuals or documentation. This knowledge accumulates only by running real wafers, across multiple production cycles and technology nodes.
This is the part of the value chain that money cannot accelerate.
The contrast becomes sharper when India’s talent profile is examined more closely. Despite hosting around 20% of the world’s semiconductor design engineers, India faces a significant capability gap in manufacturing. Global chip companies have relied on Indian talent and teams for years for architecture, verification, software design, and validation work. The design talent pipeline is deep. But, unfortunately, manufacturing does not scale the same way.
Wafer fabrication engineers build intuition the slowest way possible: by watching real wafers fail. They learn how tools drift, how materials misbehave, what works, and how defects appear without warning. This knowledge cannot be fast-tracked, outsourced, or imported in bulk. India is decades behind in this, not years.
This is why India’s semiconductor challenge is not a lack of ambition or funding. Assembly and packaging can provide a faster entry point, but without a deep base of fab-experienced engineers, the middle of the value chain remains thin.
Capital has opened the door for India. Whether the country can move beyond entry will depend on how patiently and consistently it builds the engineers needed to operate at the atomic scale.
