Flexible PCB Transperant PET FPC 4mil 1-Layer Immersion Silver

We're happy to introduce a flexible PCB based on Shengyi Technology’s SF490 PET Transparent Flexible material which designed to meet the growing demands of modern electronics. Combining high transparency, exceptional flexibility, and reliable performance, this 1-layer flexible PCB is crafted using Halogen-Free PET Film-Based Transparent FCCL (SF490). It is an ideal choice for applications such as flexible displays, touch panels, wearable devices, and smart electronics, offering a perfect blend of aesthetics and functionality.

Unmatched Transparency for Cutting-Edge Designs

This transperant flexible PCB features optical-grade PET film with over 90% light transmittance, enabling nearly invisible circuit designs. This makes it perfect for high-end applications like transparent displays and curved screens, where both functionality and aesthetics are critical. The material’s high surface flatness ensures a flawless, bubble-free finish, giving end products a sleek and professional appearance.

Exceptional Flexibility for Dynamic Applications

Designed to withstand rigorous use, this flexible PCB offers outstanding flexibility and bend resistance. With customizable base material thickness (75 - 188μm) and ultra-thin copper foil (1/2OZ - 1OZ), it supports dynamic bending with a bending radius of ≤1mm and over 100,000 bend cycles. This makes it an excellent choice for foldable devices, rollable screens, and other innovative flexible electronics.

Reliable Electrical Performance for High-Frequency Applications

This PCB delivers stable electrical performance, thanks to its low dielectric constant (Dk) and dielectric loss (Df). These properties minimize signal transmission loss, making it suitable for high-frequency and high-speed signal transmission, including 5G millimeter waves and flexible antennas. Additionally, the controlled surface roughness of the copper foil ensures consistent line impedance and superior signal integrity.

Durability in Challenging Environments

Built to perform in harsh conditions, this flexible PCB operates reliably across a wide temperature range (-40°C to +130°C). It is resistant to acids, alkalis, and solvents, ensuring long-term durability even in complex environments. The PCB is also compatible with lead-free soldering and SMT manufacturing processes, making it a versatile choice for various industrial applications.

Eco-Friendly and Safety

This PCB complies with international environmental standards such as RoHS and REACH, reflecting its commitment to sustainability. Its halogen-free design aligns with the trend of green manufacturing, while its UL certification and excellent flame retardancy (94V-0 grade) ensure the safety and reliability of end products.

Technical Specifications

- PCB Stackup:
- 1-layer flexible PCB
- Carbon layer
- Silver_layer_1: 17 μm
- SF490: 0.127mm (5mil)

- FPC Construction Details:
- Dimensions: 50 mm x 40 mm (±0.15mm)
- Minimum Trace/Space: 10/10 mils
- Minimum Hole Size: 0.25mm
- Finished Board Thickness: 0.2mm
- Surface Finish: Silver trace + carbon ink
- 100% Electrically Tested

- Key Parameters:
- Peel Strength (90°): ≥0.8 N/mm
- Visible Light Transmittance: ≥90%
- Dimensional Stability: ±1%
- Chemical Resistance: ≥90%
- Volume Resistivity: ≥10^6 MΩ-cm
- Surface Resistance: ≥10^5 MΩ

Applications

Thia PET Transparent Flexible PCB is designed for a wide range of innovative applications, including:

- Large LED Displays: High-transparency circuits for vibrant and seamless visuals.

- Flexible Displays: Transparent and curved screens for modern electronics.

- Touch Panels: High-performance interfaces for smart devices.

- Wearable Devices: Durable and flexible circuits for fitness trackers and smartwatches.

- Smart Electronics: Advanced solutions for IoT and connected devices.

Quality Assurance and Availability

This PCB adheres to the IPC-Class-2 quality standard, ensuring high reliability and performance. Artwork files are supplied in Gerber RS-274-X format, and the product is available worldwide, making it accessible for global projects.

Company Profile

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen China, severing cellular base station antenna, satellite, high frequency passive components, microstrip line and band line circuit, millimeter wave equipment, radar systems, digital radio frequency antenna and other fields worldwide for 18 years. Our high frequency PCBs are mainly built on 3 high frequency material brands: Rogers Corporation, Taconic and Wangling. Dielectric constant ranges from 2.2 to 10.2 etc.

Bicheng PCB is headquartered in Shenzhen, a city with great economic vitality. Based in China, we adhere to the philosophy of servicing small and medium sized companies offering variety of circuit boards to meet the demands of market.

Main Business & PCB Applications

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. We also have divisions of FR-4 circuit board, flexible circuits and metal core PCBs featured as prototypes, small runs to mass production. We actively research and build such high value added PCB projects as HDI, quick turn, impedance control, heavy copper and backplane board etc. This has made our PCB products generate an effective prolongation and complementation, as well as formation of integrated products line ranging from low-end to high-end.The circuit boards are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

Main Material Partners