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SPEC PUZZLE · PCB

PCB fabrication spec

20 specs · material family + via technology decide which fab can build it

SPEC PUZZLE · WHY IT EXISTS

Tired of reviewing every symbol in a contract?

33% of B2B orders ship wrong because spec drift hides in walls of text. Same data, two views — guess which one your eye reads in 250 ms.

① TEXT · WHAT YOU GET TODAY
SPEC SHEET12 ROWS · ABBREVIATED
CONTRACTPCB-2026-00042-A
PRODUCTCOPPER CLAD LAMINATE FR-4
GRADETg170 · Td330 · CTI 175
CONSTRUCTION4-LAYER · IPC-4101/126
COPPER WEIGHT1 oz / 35 µm
GLASS STYLE7628 × 4 ply
Dk @ 1 GHz4.4
PEEL STRENGTH≥1.4 N/mm
HALOGENfree · IEC 61249-2-21
IPC CLASS2
SURFACE FINISHENIG 50µ" / 200µ"
SOLDER MASKLPI green · Taiyo PSR-4000
~10 seconds to scan. Most buyers miss the drift.
same contract
② VISUAL · WHAT WE REPLACE IT WITH
PSG-0IWT-O500-5MOP
250 ms. Pre-attentive vision did the read.
IN YOUR DEAL
draft RFQsupplier quotesigncountersignphoto verifyaudit
one signature · six surfaces
Try it with your own spec. Paste a sheet, drop a photo, or fill the form — the puzzle assembles in real time.
TRY THE PUZZLE →
⚡ PASTE A SPEC SHEET · AI FILLS THE PUZZLE
Drop in a free-text spec from a PDF, email, or supplier datasheet. Claude Sonnet 4.6 normalizes units, reconciles bilingual values (e.g. 1/4" ↔ 6.35 mm), and fills the puzzle below with per-axis confidence. Confidence below 80% is flagged as unverified.
SPEC COMPLETENESS
8 MISSING · 0 MISMATCH
20 specs · 8 required
Build
Material
MISSING
Layers
MISSING
Via tech
MISSING
Impedance
MISSING
Finish
MISSING
Cu outer
MISSING
IPC class
MISSING
Assembly
MISSING
Material
Tg
UNVERIFIEDopt.
Thickness
UNVERIFIEDopt.
Board size
UNVERIFIEDopt.
Copper & vias
Cu inner
UNVERIFIEDopt.
Min L/S
UNVERIFIEDopt.
Min drill
UNVERIFIEDopt.
Backdrill
UNVERIFIEDopt.
Finish
Soldermask
UNVERIFIEDopt.
Silkscreen
UNVERIFIEDopt.
Edge feat.
UNVERIFIEDopt.
Quality & certs
Test
UNVERIFIEDopt.
Compliance
UNVERIFIEDopt.
VALIDMISSINGMISMATCHUNVERIFIED
FILL THE SPEC · LIVE-VALIDATED
⚡ AUTOFILL · PASTE YOUR SPEC
Build
Material
Copper & vias
Finish
Quality & certs
WHY THESE SPECS MATTER
A 4-layer FR-4 shop, an HDI/any-layer house, a Rogers RF fab, a metal-core LED line and a flex/rigid-flex shop are different factories. Material family, via technology and controlled impedance segment the supplier pool before price ever enters. Wrong Tg/copper/finish on a CCL order delays the whole build 3–6 weeks on non-returnable material.
When the puzzle is complete, post the RFQ.
All verified specs flow into a structured RFQ with the spec snapshot frozen at submission.
Post RFQ with this spec →