Sunking PCB

Industrial Control

Engineering considerations

High current and temperature rise
Copper weight in the drive and distribution sections directly sets temperature rise. Weights above 12 oz are available (16 oz and 18 oz already in production); the actual figure is reviewed against current density and permitted rise.
Long-service reliability
Industrial equipment stays in service for years, so the focus is hole-wall and interlayer reliability under temperature cycling and damp heat rather than extreme process limits. Acceptance to IPC-6012 Class II or Class III is available.

Applicable board types

The board types below are the ones that come up most often in industrial control applications. Each link goes to that board type's capability page with material, layer-count and process ranges. Combined constructions such as hybrid lamination or embedded copper are also available.

Production examples

The examples below are desensitized: no customer information, exact outline dimensions or full stack-up notation.

  • Analogue-to-digital conversion control board

    18L · FR-4 VT47 · 2.46 mm · ENIG 2µin · IPC-6012 Class 3 · Large format (long edge above roughly 250 mm)

    • IPC-6012 Class 3; hole-wall copper and layer registration
    • Through-hole resin plugging · plated-over fill
    • Gold fingers 0.25 µm; minimum trace/space 0.1 mm
  • Industrial control / backplane-class application

    16L · FR-4 TG170 · 2.7 mm ±10% · ENIG · Mid-size (long edge roughly 100–250 mm)

    • Press-fit holes
    • Customer stack-up · serpentine length matching; impedance ±10%
  • Interconnect inside industrial control equipment

    2L · Flex PI · 0.2 mm · ENIG 2µin · Mid-size (long edge roughly 100–250 mm)

    • Double-sided PI flex · coverlay on both sides
    • Total thickness 0.2 mm
  • Industrial control main board

    6L · FR-4 TG170 · 1.6 mm ±10% · ENIG 2µin · Mid-size (long edge roughly 100–250 mm)

    • BGA pitch 0.3 mm · via-in-pad · length matching
    • Black solder mask · yellow legend

Production experience

Related end-product categories already in volume production include Documented end-product categories in industrial control include gas analysers, intelligent monitoring systems and industrial laundry equipment.. Specific project details are covered by non-disclosure agreements and are not published.

Applicable certifications

  • ISO 9001:2015 Quality Management System — 120622-2012-AQ-RGC-RvA
  • ISO 14001:2015 Environmental Management System — F027-2026-E-00285-R5-05
  • RoHS Restricted Substances Test Report — WTH23H12270526C
  • REACH SVHC Test Report — WTH24H10245077C
  • UL Recognized Component (USA) — Wiring, Printed — E326765 (ZPMV2)
  • UL Recognized Component (Canada) — Wiring, Printed — E326765 (ZPMV8)

Frequently asked questions

How long does a industrial control project take from enquiry to prototype?
Quotations are returned within 30 minutes as a rule. Expedited prototype lead times run by layer count: double-sided 24 hours, 4-layer 48 hours, 6–8 layer 72 hours, 10–12 layer 96 hours; single-stage HDI at 6 layers is 48 hours. Volume lead times are set by order quantity.
Which inspection and material documents can you supply?
As standard we supply a certificate of conformance, material certifications with lot records, and electrical test records; impedance test reports and microsection analysis are available on request. Acceptance can be run to IPC-6012 Class II or Class III, which must be stated on the order.

Stack-up, materials and acceptance criteria are confirmed per project.

Routine enquiries are answered within 30 minutes. Once you upload Gerber files and technical requirements, engineering returns manufacturability findings together with the quotation, so design conflicts surface before production rather than after.