India's electronics manufacturing has moved from 'assembly' to 'semiconductors' over the last decade. Critically evaluate this transition with reference to recent OSAT investments.

India's electronics journey — "first products, then components, now semiconductors" — reflects a decadal climb from screwdriver assembly toward chip capability. The India Semiconductor Mission (ISM) and OSAT units like CG Semi, Sanand mark this shift, yet the transition remains partial and front-loaded on back-end work [1].

Achievements of the transition

• Assembly to value chain: OSAT (back-end packaging/testing) adds a genuine new layer beyond mobile assembly; CG Semi handles advanced packages (FCBGA, BGA) [3].
• Scale & jobs: over ₹7,600 crore investment, ~5,000 jobs, capacity scaling toward 500 crore units/year [1][3].
• Supply-chain diversification: JV with Renesas (Japan) and Stars (Thailand) aligns with China+1, reducing single-nation dependence [3].
• Macro pull: feeds the $500 billion electronics production target by 2030 [2].

Limits and concerns

• Not fabrication: OSAT is packaging, not front-end wafer fabs; India still imports finished chips — core dependency persists [1].
• Fiscal exposure: 50% pari-passu CAPEX support strains public finances if projects underdeliver [2].
• Import-heavy inputs: raw wafers, gases, equipment still sourced abroad, capping value addition.
• Geographic concentration in Sanand raises cluster-risk; skilled-talent and IP-design gaps remain.

The transition is real but foundational, not yet transformative — India has entered the value chain at its assembly-adjacent end, not its technological core. Sustained progress needs fabs, design ecosystems and materials indigenisation. Anchored to Viksit Bharat @2047, OSAT investments are a credible first brick toward strategic autonomy, provided momentum extends from packaging to full-spectrum chip-making [1].