2-Layer 0.22mm Flexible PCB with 1.0mm FR-4 Stiffener (ENIG Finish)

1.Introduction

This advanced 2-layer flexible PCB combines a 0.22mm polyimide base with a 1.0mm FR-4 stiffener, offering exceptional durability and flexibility for modern electronics. Featuring ENIG (Electroless Nickel Immersion Gold) surface finish, this PCB is ideal for applications requiring high reliability, such as mobile phones, computers, automotive systems, and industrial equipment. Designed to meet IPC-Class-2 standards, it ensures superior performance in demanding environments.

2.Key Performance Features

Flexible Polyimide Core: Halogen-free, UL94 V-0 flammability rated, with excellent thermal and electrical properties.
Double-Sided Design: Supports high-density layouts with 5/5 mil trace/space and 0.4mm minimum hole size.
Robust Construction: Combines 0.22mm flex thickness with FR-4 stiffener (total thickness: 1.34mm).
ENIG Surface Finish: Enhances solderability and corrosion resistance.
High Peel Strength: 1.0–1.5N/mm at 90° for mechanical reliability.
RoHS & EU Compliant: Free of Pb, Hg, Cd, and other hazardous substances.
Optimized for High-Frequency Signals: Dielectric constant of 3.31–3.34 @ 10 GHz and low dissipation factor (0.0188–0.0191).

3.PCB Specifications at a Glance

4.PCB Stackup: 2-layer flexible PCB

FR4 Stiffener+PI stiffener
Copper_layer_1 - 70 μm
Adhesive Polyimide Core - 25um (1mil)
Copper_layer_2 - 70 μm

5.PCB Statistics:

Components: 12
Total Pads: 39
Thru Hole Pads: 19
Top SMT Pads: 20
Bottom SMT Pads: 0
Vias: 11
Nets: 2

6.Typical Applications

Consumer Electronics: Mobile phones, digital cameras, VCRs.
Automotive Systems: Sensors, control modules.
Industrial & Office Equipment: High-reliability PCBs for automation.

7.Quality Assurance

IPC-Class 2 compliant
100% electrical tested
Global availability
Gerber RS-274X support