---
title: "Heuristic chip manufacturing lead-time estimation (MANUFACTURING CYCLE TIME — wafer fab + packaging assembly/test, as m…"
method: POST
path: "/api/v1/calculate/lead-time"
tags: ["calculators"]
---

# Heuristic chip manufacturing lead-time estimation (MANUFACTURING CYCLE TIME — wafer fab + packaging assembly/test, as m…

`POST /api/v1/calculate/lead-time`

## Request

- Base URL: `https://siliconanalysts.com`
- URL: `https://siliconanalysts.com/api/v1/calculate/lead-time`
- Auth: none required

Heuristic chip manufacturing lead-time estimation (MANUFACTURING CYCLE TIME — wafer fab + packaging assembly/test, as min/max weeks). Mask layers × utilization-scaled days-per-mask-layer + a packaging-class adder. EXCLUDES allocation/booking queue time — see /api/v1/allocation for booking windows.

## Request body

- object
  - `maskLayers` string: Total mask layers, integer 10–200 (required unless processNode is set)
  - `processNode` string: Foundry node ID for node-aware defaults: tsmc-n3 | tsmc-n5 | tsmc-n7 | tsmc-n16 | tsmc-28 | samsung-3nm | samsung-5nm | samsung-7nm | samsung-14nm | intel-7 | intel-16 | gf-12lp | gf-fdx | umc-22-28 | umc-40 | smic-28 (optional; supplies typical mask count + DPML factor)
  - `utilization` string: Foundry utilization % 0–100 (optional; defaults from live foundry-allocation data for the node, else a documented constant — the fired default is echoed in assumptions)
  - `packagingType` string: Coarse class conventional | flip-chip | cowos (default flip-chip), or any platform packaging id (fc-bga, wirebond-bga, cowos-l, copos, qfn, fowpl, 3d-stacking, ...)

## Response `200`

Successful response

- Envelope: Shared response envelope. Endpoint-specific payloads ride in `data`; `meta` carries provenance, freshness, and pagination hints.
  - `success` boolean
  - `data` object
  - `meta` object

---

[API](https://skmtc.dev/siliconanalysts/apis/silicon-analysts-data-api.md) · [All operations](https://skmtc.dev/siliconanalysts/apis/silicon-analysts-data-api/llms.txt) · [OpenAPI document](https://skmtc.dev/siliconanalysts/apis/silicon-analysts-data-api/revisions/6f151fef25c4?raw)