Smart Electronics
Case Study
Fluoplus® High-Performance Films: Empowering Smart Electronics and Flexible Sensing
Amidst the accelerating trend of the smart electronics industry toward greater flexibility, integration, and intelligence, Fluoever’s offerings—including PVDF piezoelectric film sensors, PEEK films, electret films, and FCCL flexible copper-clad laminates—have emerged as core material solutions across fields such as smart cockpits, wearable devices, flexible displays, 5G communications, and human-machine interaction. This success is driven by their exceptional electromechanical conversion performance, high-temperature stability, high-frequency electrical properties, and flexible adaptability.
PVDF Piezoelectric Film Sensor
The Fluoplus® PVDF Piezoelectric Film Sensor is a flexible piezoelectric component fabricated using a modified PVDF film substrate, processed through a series of steps including electrode coating, encapsulation, electrode lead-out, and electrostatic shielding. This product enables the bidirectional conversion of mechanical energy into electrical energy; it features high sensitivity, a wide frequency response range, low impedance, and exceptional flexibility, allowing it to be seamlessly applied to any curved surface. It is widely utilized in fields such as smart cockpit occupant sensing, structural health monitoring, touch-based interaction, and medical monitoring.
Product Features
- – High Piezoelectric Coefficient: Typical d₃₃ value of 25 pC/N, offering high sensitivity and rapid response.
- – Wide Frequency Response Range: 0.01 Hz to 1 GHz, covering everything from low-frequency vibrations to high-frequency acoustic waves.
- – Bidirectional Energy Conversion: Generates electrical signals in response to mechanical pressure (for sensing); undergoes mechanical deformation when an electrical signal is applied (for sound generation and noise cancellation).
- – Extreme Flexibility: As thin as 15 μm, capable of conforming to curved surfaces such as fingers and wrists.
- – Low Acoustic Impedance: Closely matches that of water and human tissue, making it ideal for medical-grade wearable devices.
- – High Durability: Withstands over 100,000 bending cycles as well as prolonged vibration exposure.
- – Operating Temperature Range: -40°C to 90°C.
Typical Applications
| Application | Specific Use Cases |
| Smart Cockpit | Smart Seat Occupant Sensing (Heart Rate/Respiration Monitoring, Child Presence Detection), Glass Audio/Active Noise Cancellation, B-Pillar Ultrasonic Fingerprint Unlocking |
| Wearable Devices | Electronic Skin, Smart Gloves, Motion Posture Monitoring, Sleep Respiration Monitoring |
| Structural Health Monitoring | Bridge/Building/Pipeline Vibration Monitoring, Equipment Condition Diagnosis |
| Human-Machine Interaction | Touch Panels, Flexible Keyboards, Virtual Reality Interaction Gloves |
Fluoplus® PEEK Film
Fluoplus® PEEK film is a high-performance engineering plastic film produced from polyether ether ketone (PEEK) raw materials using a melt-casting extrusion process. PEEK material exhibits exceptional high-temperature resistance, mechanical strength, chemical stability, and electrical insulation properties; furthermore, it possesses an extremely low dielectric constant and coefficient of thermal expansion, making it an ideal substrate and insulating material for applications in flexible electronics, high-frequency communications, and aerospace electronics.
- – High Temperature Resistance: Long-term service temperature of 260°C; melting point of 343°C; capable of withstanding lead-free reflow soldering processes.
- – Low Dielectric Properties: Dielectric constant as low as 2.49; low dielectric loss; suitable for high-frequency signal transmission.
- – Low Thermal Expansion: Excellent dimensional stability.
- – Flex Resistance: Capable of withstanding over 100,000 bending cycles; suitable for use as flexible electronic substrates.
- – Chemical Resistance: Resistant to acids, bases, solvents, and hydrolysis.
- – Low Moisture Absorption: Water absorption rate of only 0.04%, ensuring long-term stability of electrical properties.
- – Flame Retardancy: UL94 VTM-0 rating.
Typical Applications
| Application | Specific Use |
| Flexible Electronics Substrates | Flexible Printed Circuit Board (FPC) Substrates, Flexible Phase-Change Memory Substrates |
| High-Frequency Communication | 5G/6G Antenna Substrates, RF Front-End Insulating Layers |
| Semiconductor Packaging | Chip Heat Dissipation Substrates, Power Device Insulating Layers |
| Sensor Insulation | Pressure Sensor Diaphragms, Temperature Sensor Substrates |
Fluoplus® Electret Film
Fluoplus® Electret Film is a functional film based on a fluorinated ethylene propylene (FEP) substrate. Through a corona polarization process, permanent charges are trapped within the material, thereby generating a stable electrostatic field. This product enables non-contact sensing without the need for an external power source. Boasting advantages such as long-term charge retention, excellent flexibility, and strong resistance to environmental interference, it is widely utilized in non-contact sensors, acoustic sensors, and energy harvesting devices.
- – Permanent Charge Storage: Retains charge for over 3,000 approach-and-retreat cycles (~2 hours) with no significant decay.
- – Non-Contact Sensing: Detects objects of various materials (glass, rubber, aluminum, paper, etc.) within a range of 2 to 20 mm.
- – High Sensitivity: Achieves a piezoelectric response of 2.744 pC/Pa (@ 500 Hz) with a signal-to-noise ratio > 48 dB.
- – High Flexibility: Customizable thickness; conforms to highly curved surfaces and human skin.
- – Environmental Noise Immunity: Maintains an instruction recognition rate of over 92% in high-noise environments of up to 96.5 dB.
- – High Durability: Withstands 100,000 acoustic pressure cycles and 1,000 bending cycles.
Typical Applications
| Application | Specific Use Cases |
| Contactless Human-Machine Interaction | Air Gesture Recognition, Contactless Buttons, Contactless Switches |
| Smart Sensing | Eye-Tracking Glasses, Respiratory Monitoring, Heart Sound Detection |
| Acoustic Sensing | Voice Command Recognition, Environmental Sound Monitoring |
| Energy Harvesting | Vibration Energy Harvesters, Self-Powered Sensor Nodes |
Fluoplus® FCCL (Flexible Copper-Clad Laminate)
Fluoplus® FCCL (Flexible Copper Clad Laminate) is an adhesive-free flexible copper-clad laminate manufactured by laminating copper foil onto a high-performance fluoroplastic film (such as PEEK, FEP, etc.)—which serves as the insulating substrate—under high-temperature and high-pressure conditions. Characterized by extremely low dielectric constant and dielectric loss, excellent dimensional stability, and high thermal resistance, this product serves as a core material for high-frequency, high-speed Flexible Printed Circuits (FPCs). It is widely utilized across various fields, including 5G communications, automotive electronics, flexible displays, and aerospace.
Product Features
- – Low Dielectric Loss: Df as low as 0.0008–0.003 (@10 GHz), ensuring high-frequency signal integrity.
- – Low Dielectric Constant: Dk as low as 2.35 (@10 GHz), suitable for high-speed transmission applications.
- – Adhesive-free Structure: Eliminates the impact of adhesive layers on electrical performance, offering superior heat resistance and dimensional stability.
- – High Peel Strength: Strong adhesion to the copper layer, supporting the fabrication of fine-line circuitry.
- – Low Moisture Absorption: Low moisture uptake ensures stable electrical performance in humid environments.
- – High Heat Resistance: Capable of withstanding lead-free reflow soldering processes.
- – Wide Range of Thickness Options: Substrate thicknesses available from 25 to 500 μm, with copper foil thicknesses selectable from 1/2 oz to 2 oz.
Typical Applications
| Application | Specific Use |
| 5G Communications | High-frequency Antenna FPCs, RF Front-end Module Substrates |
| Automotive Electronics | In-vehicle Camera FPCs, LiDAR Flexible Boards, Battery Management Flexible Boards |
| Flexible Displays | Flexible OLED Display Modules, Foldable Screen Interconnects |
| Consumer Electronics | Smartphone Antennas, TWS Earbud Flexible Boards, Wearable Device FPCs |
