Mature-node MPW: 0.35um to 40nm Process Scoping

Key Takeaways

→The practical node window
→Process family matters more than the node label
→How MST screens the first pass
→FAQ
→Start an MPW RFQ

Quick answer: Mature-node MPW scoping should start with both node range and process family. A node number alone does not describe analog, RF, BCD, high-voltage or embedded-memory requirements.

The phrase mature-node MPW is useful, but it can hide important process details. Two projects at the same nominal node can require very different voltage devices, RF passives, embedded memory, thick metal, packaging or test assumptions.

The practical node window

Indicative mature-node discussion can include 0.35um, 180nm, 130nm, 90nm, 65nm, 55nm and 40nm.
28nm or 22nm style requests should be treated as case-by-case edge cases rather than assumed availability.
Final node fit, schedule and commercial terms must be confirmed by a qualified partner.

Process family matters more than the node label

Analog and mixed-signal projects need device models, matching, passives and noise assumptions.
RF projects need frequency range, RF passives, package parasitics and test expectations.
BCD and high-voltage projects need voltage range, isolation, power device and thermal assumptions.
eNVM or eFlash projects need memory option fit and qualification context.

How MST screens the first pass

MST screens customer, country, end use, node range, process fit, design-stage readiness and whether the case should proceed into NDA, PDK access and partner-confirmed quotation.

FAQ

Which mature nodes can be discussed for MPW?

The indicative discussion window is 0.35um to 40nm across mature-node and specialty-process cases. 28nm and 22nm style requests may be considered case by case, but nothing is assumed before partner confirmation.

Is 180nm still useful for MPW?

Yes. 180nm and nearby mature nodes are still useful for many analog, sensor, mixed-signal, power-management and high-voltage prototype cases where device options matter more than digital density.

Can one RFQ include multiple possible nodes?

Yes. Listing an acceptable node range can improve routing because the screening desk can compare process fit, schedule and partner availability across more than one option.

Start an MPW RFQ

Start with node range, process family, estimated die area, target quantity, packaging or test assumptions, and timeline. Do not upload GDS, netlist, RTL, schematics or confidential design files at intake.

Submit an MPW RFQ or return to the MST mature-node MPW coordination hub.

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