Fan-Out Wafer-Level Packaging
Die are reconstituted onto a carrier and a redistribution layer is built directly over them, eliminating the package substrate entirely.
A capability India’s new ATMP plants may grow into. Not something anyone starts from outside them.
Skips the usual circuit board base by building wiring right on the chip
- Reassembles chips on a carrier and wires them directly, no substrate needed.
- Cuts out an entire long-lead, imported part from the bill of materials.
- A fab-level discipline transplanted into a packaging plant: not MSME-scale.
India Position
- Import dependency
- Not established
- Made in India today
- None
- MSME entry capital
- Not an MSME entry
- Time to qualify
- Over 30 months
Not established means we hold no sourced import figure for this input yet, not that India imports none of it. Read Made in India today for the domestic picture.
What Breaks, and Who Could Fix It
Fan-out needs lithography, plating and dielectric coating inside the packaging plant. It is a fab discipline transplanted into an assembly building, and staffing it is harder than buying it.
An Indian firm’s realistic role here is design and process engineering services to plants that own the line.
Best and worst case
Removing the substrate removes a long-lead, import-dependent component from the bill of materials, which is strategically attractive for India specifically.
Die shift during reconstitution is the process’s defining failure mode, and it scales badly with panel size. This is why panel-level fan-out has taken a decade to mature.
No manufacturing entry. Dielectric materials and carrier consumables are the only adjacencies.
Nothing about this is MSME-scale.
Representative Suppliers
Listing a firm documents the market as we understand it. It is not an endorsement, a recommendation, or evidence of any commercial relationship.
| Supplier | Origin | Scale | Confidence |
|---|---|---|---|
| TSMC InFO is the volume reference implementation. | Taiwan | Mega | Verified |
| ASE Group | Taiwan | Mega | Verified |
| Amkor Technology | United States | Large | Verified |
| Powertech Technology | Taiwan | Mid | Reported |
| Deca Technologies Adaptive patterning to correct die shift. | United States | Small | Reported |
Read Next
- Interposer and 2.5D Packaging directory entry
- Flip-Chip Bumping directory entry
- 3D Stacking and Hybrid Bonding directory entry
- Flip-Chip Attach and Reflow directory entry
- Laser and Plasma Dicing directory entry
- Semiconductor Packaging Clusters in Asia report
Sources
- Semiconductor OSAT clusters: Penang, Sanand, Morigaon as of 2026-04
Last reviewed 2026-08-28.
How to read this page
Reading Key
Every entry carries the same five figures, so two inputs anywhere in the chain can be compared directly. What each one is, and what it is not:
- Import dependency
- The share of Indian demand for this input that is met by imports today. A percentage is published only where we can state the basis for it, and the build rejects a figure that has none. “Not established” means no sourced figure exists yet, not that the figure is zero; for the domestic picture, read “Made in India today” instead.
- Made in India today
- How much of this input is actually produced in India: none, pilot scale, partial, or established. This is the field to read when import dependency is not established.
- MSME entry capital
- What it would plausibly cost an Indian MSME to enter this input at the smallest viable scale, in crore rupees. Plant and equipment only; it excludes working capital and the qualification cycle.
- Time to qualify
- How long from a working sample to a qualified first shipment, once the line exists. Qualification, not construction, is what usually decides whether an entry succeeds.
- India readiness tier
- Our verdict on whether an Indian founder can realistically enter this input, derived from the four figures above and stated as one of three tiers.
The three tiers
- Tier A: Buildable Now
- Under roughly Rs 5 crore of entry capital and 12 to 24 months to a qualified first shipment. A founder can start here.
- Tier B: Partnership or Distribution
- There is real money here, but not in manufacturing the thing. The opening is in stocking, distribution, purity uplift or a licensed partnership.
- Tier C: Not Yet
- Requires a joint venture, a technology licence, or a multinational’s balance sheet. Worth understanding, not worth starting.
Made in India today
- None
- No Indian production we can identify. Demand is met entirely from abroad.
- Pilot scale
- Made in India at laboratory, pilot-line or single-customer scale only.
- Partial
- Real Indian production exists, but it covers part of the range or part of the demand.
- Established
- Indian production is routine and qualified, at commercial volume.
Confidence
Confidence describes how well evidenced our listing is. It is not a rating of the supplier or of its products.
- Verified
- Checked against a primary source: the firm’s own filing, product documentation or announcement.
- Reported
- Consistently reported by trade press or industry analysts, but we have not seen the primary document ourselves.
- Likely
- A credible supplier for this input given their product range, though we have not confirmed that they actually supply it.
- Directional
- Included to show the shape of the market. Read it as an observation, not as a claim about this firm.
Scale
Scale is a bucket, not a revenue figure. We publish a band we can hold for years rather than a number that is stale in a quarter.
- Mega
- A global top-tier firm that effectively sets the price and the standard for this input.
- Large
- A major international supplier, usually with plants or sales in several regions.
- Mid
- An established specialist, often strong in one region or one product family.
- Small
- A niche or regional supplier. Frequently the realistic first partner for a new Indian entrant.