Close-up detail of 36-layer communication backplane PCB showing backdrilled vias, high-density connector pads, and precision impedance-controlled differential pair routing
High-precision 36-layer communication backplane printed circuit board with immersion gold finish and controlled impedance traces for data center switches and core routers
Close-up detail of 36-layer communication backplane PCB showing backdrilled vias, high-density connector pads, and precision impedance-controlled differential pair routing
High-precision 36-layer communication backplane printed circuit board with immersion gold finish and controlled impedance traces for data center switches and core routers

Communication Backplane PCB

Core Features

High-speed Laminate

TUC TU-933+

High layers

36L

Large size

1041.00mmX621.00mm

Quality Standards

IPC 6012D & IPC 600J CLASS 3

Consulting

+86 755 2828 2776

Business Hours (Mon.-Sat.)

9:00 - 18:00

Key Specifications & Technical Parameters

This is a 36-layer high-speed backplane PCB manufactured with TUC TU-933+ laminate: Dk 3.08, Df 0.0020 @ 10GHz, Tg 220°C . Features 3 mil trace/space, backdrilling (stub <3 mil), ENIG finish, and ±5% impedance control for 25G/56G PAM4 signaling . Ideal for data center switches, core routers, and 5G infrastructure .

Basic Features

Layers

36L

Tg (TMA)

170 °C

Surface finishing

ENIG: IPC-4552

Typical Value

Core

TU-933+

Prepreg

TU-933P+

Thickness

6.5+/-6% mm

Selection Reference

Out layer copper

1/3 oz

Inner layer copper

2 oz

Aspect ratio

18.5:1

Critical Value

Back drill

Multiple back-drill

Differential impedance

110 +/-8% ohm

Single end impedance:

50 +/- 5% ohm

Electrical Performance

Dielectric Constant

( Dk )

3.08 @ 10GHz

Dissipation Factor
( Df )

0.0020 @ 10GHz

Surface Resistivity
MΩ

> 108

Quality Specification

Cosmetic checking

IPC 6012D & IPC 600J CLASS 3

RoHS Status

Yes

REACH Status

Yes

Quality Assurance

This 36-layer communication backplane PCB undergoes rigorous DFM verification though powerful CAM software Genesis 2000, and impedance simulating tooling Polar Si900e, ensuring optimal manufacturability with ThunderClad 3+ super low loss laminate and prepreg. Combined with 100% electrical testing, AOI, microsection analysis, and impedance validation per IPC Class 3 standards, we guarantee zero defects for mission-critical data center and telecom infrastructure applications.

RoHS

UL

REACH

IPC 6012D & IPC 600J CLASS 3

First Pass Yield
0 %
Fast Delivery
0 days
Partner Customers
0 +
Years of Industry Experience
0 +

Product Details

Discover the technical features, manufacturing processes, and performance advantages of our data communication application PCB products.

Product Overview

Developed by experienced engineers, our High-Performance Heterogeneous Computing Server PCBs integrate advanced technical features and precision manufacturing processes. Every design undergoes rigorous DFM verification using Genesis 2000 and impedance simulation with Polar 9000, ensuring signal integrity and reliability. The result: enabling high-speed data transmission across specific devices

Core Advantages

Technical Features

We use our self-developed, customized production process, strictly controlling every step from raw material inspection to finished product inspection and testing to ensure stable and reliable printed circuit board quality.

1
DFM review

Senior engineers perform DFM checks using Genesis 2000 and Polar Si9000e.

2
Base material selection+CAM files generating

High-quality base material and copper foil selection, meantime optimization and compensation of production data

3
Inner layer fabrication

Photolithography, etching, and AOI inspection

4
Lamination

Strictly follow the layer stackup structure confirmed by the customer.

5
Drilling and plating

Precision drilling, strictly controlling hole wall roughness to ensure sufficient plating.

6
Outer layer fabrication

Photolithography, etching, plating and AOI inspection

7
Surface finishing

No subcontracting; all processes are performed in-house and comply with IPC-4552.

8
CNC and E-test

High-precision CNC routing and 100% electrical testing, differential pairs impedance and single end impedance testing.

Rigorous DFM analysis, premium material selection, and scientifically controlled processes ensure our PCBs deliver exceptional electrical performance and mechanical stability, excelling in the most demanding applications.

Excellent Electrical Performance

Excellent High-speed Laminate TUC TU-933+ material suport: Low dielectric loss, high insulation resistance, and stable electrical parameters ensure signal transmission integrity and reliability

Outstanding Reliability

Rigorous reliability testing—including thermal shock, humidity, vibration, and both differential and single-ended impedance verification—ensures long-term operational stability under the most demanding conditions.

Precision Manufacturing Process

Backed by a team of expert engineers and skilled technicians, our cutting-edge production equipment and strict quality systems deliver PCBs that consistently meet and exceed high-standard requirements.

Application Areas

We utilize advanced manufacturing processes to ensure that every PCB circuit board meets industrial-grade standards.

Hyperscale Data Centers

High-speed backplanes for core switches and routers handling 25G/56G PAM4 signals, featuring ultra-low-loss materials (Megtron 6/ThunderClad 3+) and ±5% impedance control for multi-terabit throughput.

Core switches

ultra-low-loss

Multi-terabit throughput.

5G Telecommunications

Backplane PCBs for base stations (BBU/AAU) and fronthaul/backhaul equipment, supporting massive MIMO and millimeter-wave frequencies with Df <0.005 signal integrity.

BBU/AAU)

Massive MIMO and millimeter-wave

signal integrity.

Core Routers & Switches

36-layer backplanes for service provider and enterprise core routing platforms requiring 50+ Gbps per lane performance with backdrilled vias (<3 mil stub) to eliminate signal reflections.

core routing

Support 50+ Gbps

Eliminating signal reflections

Optical Transport Networks

High-density backplanes for OTN/WDM equipment enabling 400G/800G optical transmission with hybrid material construction combining high-frequency laminates and FR-4 cores.

Support 400G/800G

Hybrid material construction

 High-frequency laminates

High-Performance Computing

Backplane interconnects for HPC clusters and AI servers requiring low latency and high bandwidth with precision differential pair routing (100Ω ±5%) and TDR-verified performance.

low latency

HPC clusters

AI servers

Defense & Aerospace

Ruggedized backplane systems for radar, avionics, and secure communications, meeting IPC Class 3 standards with extended temperature range and vibration-resistant construction.

Radar

Avionics

Secure communications

Project Story

A leading networking equipment manufacturer required a 36-layer high-speed backplane PCB for next-generation core routers using ThunderClad 3+ ultra-low-loss laminate. Our engineering team performed rigorous DFM analysis and impedance simulations, achieving ±5% control across all 100Ω differential pairs. Post-production TDR testing confirmed signal integrity at 56G PAM4, enabling seamless deployment in hyperscale data center applications.

Quality Standards
IPC Class 0
Multiple back-drill
0
High layer
0

Backplane High-Speed Systems

Line card ↔ switch fabric connectivity

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