4 Layer High Frequency PCB Built on Dual 20mil RO4350B Cores with Back Drill for GPS Trackers

(Printed circuit boards are custom-made products; the images and specifications shown are for reference only.)

Introduction

Hello Everyone,
Warm greetings!
We present a 4-layer Rogers PCB constructed with two 20mil (0.508mm) RO4350B cores, specifically designed for GPS tracker applications. This board utilizes back drilling technology to create "blind vias," as illustrated in the stack-up.

Back drilling effectively reduces noise interference and enhances signal integrity. This technique simplifies PCB fabrication and eliminates the need for buried or blind vias.

PCB Specifications

Item	Specification
Base Material	RO4350B 20mil + RO4450B 4mil
Layer Count	4 Layers
Type	Mixed multiplier milled separately
Dimensions	70mm x 125mm (1 piece)
Surface Finish	Immersion gold
Copper Weight	Outer layer 35μm / Inner layer 18μm
Solder Mask / Legend	Green / White
Final PCB Height	1.42mm
Standard	IPC 6012 Class 2
Packing	Each shipment contains 25 panels
Lead Time	12 working days
Shelf Life	6 months

Features and Benefits

1.Exceptional High Frequency Performance: Achieved through low dielectric tolerance and loss.
2.Low Thermal Coefficient: Maintains a stable dielectric constant.
3.Noise Reduction: Back drilling minimizes noise interference.
4.Certified Manufacturing: Produced in ISO9001, ISO14001, and UL certified facilities.
5.High Production Capacity: Capable of producing 30,000 square meters per month.1.Exceptional

Applications

Multiplexers
Video Transmission Equipment
Low Noise Blocks (LNB)
Power Dividers

Parameter and Data Sheet