Precision 6 Layer PCB Manufacturer

High Reliability & Strict Impedance Control

Designed for industrial control, automotive electronics, and medical devices. As your expert 6-layer PCB manufacturer, we deliver the structural integrity required for dense BGA routing and multiple power domains. Trust our strictly controlled impedance processes to ensure flawless high-speed data transmission in compact form factors.

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6 Layer Multilayer PCB for Industrial Electronics

Advanced 6-Layer Stackup

A standard 6-layer structure provides two internal signal layers flanked by dedicated ground and power planes. This configuration is essential for routing high-pin-count FPGAs/DSPs while maintaining excellent signal integrity and cross-talk isolation.

L1: Top Copper Signal / Microstrip (Impedance Controlled)

Prepreg Dielectric

L2: Inner Copper 1 Solid GND Plane (Reference)

FR-4 Core

L3: Inner Copper 2 Internal Signal 1 (Stripline)

Prepreg (Center)

L4: Inner Copper 3 Internal Signal 2 (Stripline)

FR-4 Core

L5: Inner Copper 4 Solid VCC Plane (Multiple Power Domains)

Prepreg Dielectric

L6: Bottom Copper Signal / Microstrip (Impedance Controlled)

Engineering Specifications

Specification	Standard Capability	Advanced (Upon Request)
Impedance Tolerance	±10% (Single & Differential)	±8% or ±5% (Tight Control)
Min Trace / Space	4mil / 4mil (0.1mm)	3mil / 3mil (0.075mm)
Min Hole Size	0.2mm (Mechanical)	0.1mm (Laser Drill / HDI)
BGA Pitch Support	0.65mm - 0.8mm Pitch	Down to 0.4mm Pitch (Via-in-Pad)
TG Rating (FR-4)	TG150 (Mid-TG)	TG170 / TG180 (High-TG for Automotive)

Engineered for Critical Environments

Industrial PLCs

Robust routing for heavy-duty controllers, surviving harsh factory electrical noise.

Automotive Electronics

High-TG materials and strict impedance control for dashboards and ADAS modules.

Medical Monitors

High reliability and isolation between digital processing and sensitive analog sensor inputs.

Frequently Asked Questions

How do you guarantee Impedance Control (+/- 10%)?

We use advanced Polar Instruments software for pre-production modeling. During manufacturing, we attach an impedance test coupon to the edge of your panel. Before shipping, we perform a Time-Domain Reflectometer (TDR) test on this coupon to verify the impedance values and can provide a formal TDR test report.

Can a 6-layer board handle multiple power domains (e.g., 1.8V, 3.3V, 5V)?

Absolutely. The L5 VCC plane is typically split into multiple copper pours (polygons) to distribute different voltages across the board. Our DFM engineers will review your split planes to ensure there are no unintended slots that could cause signal return path issues for the adjacent routing layers.

What is the advantage of 6 layers over 4 layers?

While a 4-layer board is great, it often limits you to routing mostly on the top and bottom. A 6-layer board adds two internal signal layers (L3 and L4). Because these layers are sandwiched between solid GND and VCC planes (Stripline configuration), they offer the best possible EMI shielding and are perfect for routing sensitive high-speed buses like DDR memory or PCIe.