India Semiconductor Mission: Why a Chip Fab Is Harder Than a Unicorn
Current position
The Semicon India programme has an outlay of ₹76,000 crore. The semiconductor-fab scheme provides fiscal support of up to 50% of project cost on a pari-passu basis under the applicable conditions. Approved projects should be described accurately as approved, under construction, commissioned or operational; approval is not production.
How it works
A wafer fab requires process technology, clean rooms, ultra-pure water, stable power, gases, chemicals, equipment service and high utilisation. Yield improvement can take time and determines unit cost.
ATMP or OSAT packages and tests chips; it is capital-intensive but different from wafer fabrication. Design incentives support intellectual property and product development rather than factory capacity.
Government support reduces project cost but does not guarantee customers, yield, technology access or export competitiveness.
| Issue | Current position | Why it matters |
|---|---|---|
| Programme outlay | ₹76,000 crore | Across semiconductor and display ecosystem schemes |
| Fab support | Up to 50% of project cost | Subject to scheme and approval conditions |
| Project distinction | Fab versus ATMP/OSAT versus design | Do not compare as identical capacity |
Practical example
A proposed fab has ₹50,000 crore project cost and 50% fiscal support. If construction is delayed, equipment prices rise and initial yield is 45% instead of 80%, the remaining equity, debt service and operating losses can still be substantial. The headline subsidy should not be treated as half the commercial risk.
Action checklist
- Identify project type, node, product, technology partner and customer market.
- Separate approved cost, committed funding, spent capex and commissioned capacity.
- Model power, water, yield ramp and equipment replacement.
- Verify subsidy milestones and pari-passu funding.
- Assess supply-chain, export-control and customer-qualification risk.
Evidence and document checklist
- ISM approval and scheme terms.
- Land, power, water and environmental approvals.
- Technology-transfer and equipment contracts.
- Funding, subsidy and capex drawdown records.
- Yield, utilisation and customer qualification reports.
Common mistakes
- Calling packaging a wafer fab.
- Calling approval operational capacity.
- Using nameplate wafers without yield.
- Assuming subsidy guarantees commercial success.
Red flags
- Technology partner obligations are vague.
- Utility connection lags equipment arrival.
- Customer qualification is not budgeted.
- Project cost excludes escalation or working capital.
Escalation and complaint route
Project interpretation should use India Semiconductor Mission and ministry releases. Environmental, water, electricity, customs, export-control and technology contracts require specialist diligence. Listed-company claims should be checked against exchange filings.