Industry · Telecom

Carrier grade, without the carrier wait.

Networking and telecom hardware production — switches, routers, transport gear and access systems built at up to 58-layer HDI with IPC Class 3 discipline, burned in and traceable, export-ready to 38 countries. Your rack, your uptime, our problem.

Network hardware at carrier grade.

Carriers don't ask for a board — they ask for a lifetime of uptime. High-layer HDI cards, controlled impedance stack-ups, fine-pitch BGA placement and backplane-sized fixture work are what a carrier build takes; 100% electrical test, 48h burn-in and per-lot traceability are what it costs. We run both sides in Shenzhen and hand over the certificate bundle with the crate. And when the carrier asks for the third revision of the test report, the engineer who wrote the first one still works for the network that ships your product. Carrier-grade is a paperwork discipline with hardware attached — the paperwork gets the same time budget as the hardware.

Layer options
High-layer telecom PCBA seated on a soft white studio background

The carrier-grade checklist.

Eight columns of the network hardware build, from stack-up to customs paperwork — a list we keep the way carriers keep theirs: twice, and on record.

Network hardware elementHow we build it
Board technology1-58 layer HDI with IPC Class 3 acceptance — backplane-grade layer counts produced at the Huaxing PCB site in Bao'an, on 45,000㎡ of the group's own factory floor.
High-speed materialsControlled-impedance stack-ups reviewed in the DFM pass with the target material family agreed before fabrication — so the laminate choice is a signed decision, not a surprise.
Assembly density8 million component placements per day across the network; 3.2M assembled boards per month of joint capacity — headroom a carrier slot usually needs.
Fine-pitch capability01005 passives to 0.3mm-pitch BGAs, placed, cross-sectioned and inspected with automated optics on every line — the corners where signal problems hide.
Backplane & fixturesDedicated fixture work for large-format boards and backplanes — designed, qualified and re-verified from first article through each revision of the program.
Signal integrity careRouting and test strategy reviewed against the high-speed nets during the DFM pass, with coverage on the nets that define your link budget — and per-lot reports generated, archived and shipped with the boards.
Burn-in48h aging on power-on and thermal cycling before pack-out — a carrier build is loaded, not just assembled, and the load log is part of the delivery.
Test & export100% electrical test with per-unit traceability, then CE · FCC · UKCA · RoHS/REACH files and FOB Shenzhen, CIF or DDP shipping — one desk from the first net to the last crate.

What the gate log says.

The same session a network buyer sees — the QC gate summary that ships next to the boards, so a carrier can match its own records to ours line by line.

ems-trade · qc gate · si-XXXX
$ ems-qc gate run --board NET-58L-HDI --plan si-XXXX [01/06] stack-up review ......... PASS 58-layer HDI · IPC Class 3 [02/06] impedance plan ......... PASS high-speed nets covered [03/06] 100% e-test ............. PASS 0 opens / 0 shorts [04/06] burn-in 48h ............. PASS 0 failures of 60 pcs [05/06] traceability link ....... PASS lot archived per unit [06/06] export docs ............. PASS CE · FCC · UKCA · RoHS result: PASS — releasing to FOB Shenzhen queue $ report si-XXXX — archived to the lot folder, linked from the packing list

Put the next slot in production.

Send the stack-up, the BOM or the reference design. The engineering desk returns a DFM review within 24-48 hours with impedance and test plans spelled out — then the gate log does the talking, and the log is never hand-written. Send the stack-up and the BOM; you will know within two business days what the plan costs and where the risk sits.

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