We are delighted to introduce our latest delivery of transparent flexible PCBs, built on a 0.05mm PET substrate with immersion gold finish. These cutting-edge PCBs offer a groundbreaking solution for various industries requiring high-performance, visually appealing circuitry. With their exceptional transparency, chemical resistance, and electrical properties, these flexible printed circuit boards (FPCs) open up new possibilities in design and functionality.

Laminate Introduction
The Single Sided Adhesive Transparent Flexible Copper Clad Laminate used in these PCBs ensures reliable performance in demanding environments. Here are some important specifications:

1. Visible Light Transmittance: Ranging from 90.1% to 90.5%, providing excellent transparency.

2. Volume Resistivity: 1.3×10^8 MΩ-cm, ensuring optimal electrical conductivity.

3. Surface Resistance: 4.7×10^5 MΩ, promoting stable and consistent performance.

4. Peel Strength (90°): 0.31 N/mm, ensuring strong bonding between layers.

5. Operating Environment: Capable of withstanding temperatures from -40℃ to +85℃.

Laminate Features
Transparent Flexible PCBs come with a range of remarkable features that make them stand out in the market:

1. High Bonding Strength and Dimensional Stability: These PCBs offer reliable bonding and maintain their shape even in challenging conditions.

2. Exceptional Transparency: With excellent light transmittance, they allow for visually appealing and innovative designs.

3. Chemical Resistance: The PCBs exhibit resistance to various chemicals, enhancing their durability and reliability.

4. Excellent Electrical Properties: They possess desirable electrical characteristics, ensuring optimal performance.

5. Compliance with RoHS Directive: Transparent Flexible PCBs meet the requirements of the EU RoHS directive, making them environmentally friendly.

PCB Stackup
Transparent Flexible PCBs are designed as 1-layer flexible circuits with the following specifications:
Copper Layer 1: 18 μm, providing adequate conductivity for signal transmission.
Polyester Core SF490: 0.05 mm, offering good flexibility and dimensional stability.

PCB Construction Details
The construction details of Transparent Flexible PCBs are as follows:
Board Dimensions: 190mm x 290mm (20 PCS), ensuring a suitable size for various applications with a tolerance of +/- 0.15mm.
Minimum Trace/Space: 5/6 mils, allowing for intricate circuitry and compact designs.
Minimum Hole Size: 0.25mm, facilitating the integration of small components.
No Blind Vias: The absence of blind vias simplifies the manufacturing process.
Finished Board Thickness: 0.06mm, providing a thin and flexible form factor.
Finished Cu Weight: 0.5 oz (0.7 mils) on outer layers, balancing conductivity and weight.
Surface Finish: Immersion Gold, ensuring excellent solderability and corrosion resistance.
Silkscreen: Top Silkscreen in white, while no silkscreen is applied to the bottom layer.
Solder Mask: Coverlay used for both the top and bottom layers, protecting the circuitry from environmental factors.
100% Electrical Test: Each PCB undergoes a comprehensive electrical test before shipment, guaranteeing its functionality.

PCB Statistics
Transparent Flexible PCBs offer extensive capabilities for diverse applications. Here are some statistics:
Components: 72, allowing for complex circuit designs and functionality.
Total Pads: 98, providing sufficient connection points for various components.
Thru Hole Pads: 0, indicating the use of surface mount technology for component placement.
Top SMT Pads: 98, enabling the integration of surface mount components on the top layer.
Bottom SMT Pads: 0, indicating no surface mount components on the bottom layer.
Vias: 0, simplifying the PCB design by eliminating the need for vias.
Nets: 1, representing a single interconnected network of circuitry.

Artwork and Standards
Transparent Flexible PCBs utilize Gerber RS-274-X as the supplied artwork format. They adhere to the IPC-Class-2 standard, ensuring high-quality manufacturing and reliability.

Worldwide Availability
These PCBs are readily available for worldwide, making them accessible for various industries and applications.

Typical Applications
Transparent Flexible PCBs find application in numerous fields, with a particularly notable use case being:

Large Touch Panel: These PCBs enable the creation of large touch panels with high transparency, providing an immersive user experience.