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MPW buyer question

90nm, 55nm and 40nm mature-node selection

Compare the first screening questions for 90nm, 55nm and 40nm mature-node MPW requirements before submitting an RFQ.

RFQ non-confidential firstHuman confirmed route

Direct answer

How should buyers choose between 90nm, 55nm and 40nm MPW options?

90nm, 55nm and 40nm mature-node selection starts with application type, voltage, embedded memory needs, RF/high-speed requirements, die area, package/test expectation, PDK/NDA status and schedule. MST can screen fit, but exact process availability is confirmed after review.

  • 90nm low-power BCD and embedded eFlash requests often need voltage, power and non-volatile-memory context.
  • 55nm SiGe BiCMOS, BCD and logic/eFlash requests often need RF, high-speed, mixed-signal or memory context.
  • 40nm logic/eFlash requests often need application fit, PDK/NDA path, schedule and partner acceptance review.

What to prepare

  1. Application type: power, sensor, RF, mixed-signal, logic, eFlash or other.
  2. Voltage, memory, speed, analog/RF and package/test constraints.
  3. Known node preference and backup node flexibility.
  4. Target schedule and reason for the deadline.

Public boundary

  1. This is a first-pass selection guide, not a process availability guarantee.
  2. Partner acceptance and schedule fit are confirmed case by case.
  3. Do not infer PDK access, slot availability or quote from a public node description.

Next step

Turn this into a reviewable MPW RFQ

Share a short non-confidential brief first. MST screens node, process, PDK/NDA, package/test, schedule, country and end-use before any sensitive design-file path.

MPW hub →
MPW pricing factors

MPW pricing factors without public price promises

What drives MPW pricing before a formal quote?

PDK/NDA access path

PDK/NDA access path for MPW screening

How should buyers discuss PDK/NDA access before MPW?

package/test scope

MPW package/test scope before RFQ

What package/test details matter before an MPW RFQ?