PCB flexible simple face avec raidisseur Al | 0.2mm Ultra-mince | UGPCB

Ultra-Thin Single-Sided Flex PCB with Aluminum Stiffener Présentation du produit & Définition

In the pursuit of thinner, lighter, and more reliable electronic devices, UGPCB Ultra-Thin Single-Sided Flex PCB with Aluminum Stiffener represents the optimal fusion of flexible circuit technology and structural reinforcement. This solution is engineered to meet the critical challenge of requiring both dynamic flexibility and localized rigidity, enhanced heat dissipation, and superior dimensional stability within constrained spaces.

This product is scientifically classified as a: Simple face, Adhesive-Based Flexible Printed Circuit (FPC) with a Localized Aluminum Stiffener. It features a standard single-sided FPC construction with a precisely bonded aluminum alloy stiffener in specific zones, creating a cost-effective “rigid-flex-like” performance where it matters most.

Key Specifications

• Nombre de couches: 1 Couche (Single-Sided Conductor)

• Overall Thickness: 0.2mm ±0.08mm (Including base material, cuivre, and stiffener)

• Matériau de base: Shengyi S1145 or equivalent 1once (70µm) Cuivre / 25µm Polyimide (PI) Simple face, Adhesive-Based Flex Laminate

• Stiffener Material: Aluminum Alloy (par ex., 5052 ou 1060)

• Finition de surface: OSP (Conservateur de soudabilité organique)

• Board Dimensions: 240mm x 165mm (Customizable per design)

Design Essentials & Structure Analysis

Successful aluminum stiffener FPC design begins with precise application analysis. Design engineers must define:

1. Stiffener Placement: Accurately identify areas for connector mounting, placement des composants, or mechanical fastening.

2. Dynamic Flex Zone Planning: Ensure bending occurs only in designated flexible areas, avoiding the stiffener to maximize flex life.

3. Thermal Management Path: Utilize the aluminum’s high thermal conductivity by connecting copper pads under heat-generating composants (par ex., LED, ICS) directly to the stiffener, creating an efficient heat-spreading pathway.

4. Tolérance & Registration: Strictly control the alignment tolerance between the stiffener and the FPC to ensure accurate mounting hole placement.

How It Works & Performance Advantages

Le PCB with aluminum stiffener operates on a simple yet effective principle:

• In Flexible Areas: The thin PI and copper construction provides excellent dynamic flexing and space-saving capabilities.

• In Stiffened Areas: The aluminum plate offers rigid PCB-like mechanical support, preventing tearing during connector mating or screw fastening, while rapidly dissipating localized heat.

Core Features & Avantages:

• Exceptional Thinness: ~0.2mm profile ideal for ultra-slim devices.

• Targeted Rigidity-Flexibility: Solves the “where to be rigid, where to be flexible” dilemma in a single, cost-effective package.

• Enhanced Thermal Performance: The aluminum stiffener acts as an integrated heat spreader, improving component reliability.

• Superior Dimensional Stability: The stiffened area resists warping under thermal and mechanical stress, ensuring precise assembly.

• Haute fiabilité & Durabilité: Protects solder joints and vias in critical areas from stress and fatigue.

• Finition de surface OSP: Provides excellent solderability and a flat surface for reliable SMT assembly.

Processus de fabrication & Contrôle de qualité

UGPCB employs a mature flex circuit stiffener attachment process ensuring precision and reliability:

1. FPC Fabrication: Processing of adhesive-based laminate (par ex., Shengyi) through patterning, gravure, and drilling.

2. Finition des surfaces: Application of OSP coating to exposed copper pads.

3. Stratification de précision: Bonding of the pre-cut aluminum stiffener to the FPC using controlled heat and pressure with adhesive (pre-preg or base material adhesive layer).

4. Contour Routing & Profiling: Final board outline, stiffener shape, and mounting holes are created via CNC or laser cutting.

5. Tests complets: Includes electrical testing (Flying Probe/Fixture), dimensional Zone d'intérêt, and peel strength tests for the stiffener bond.

Applications principales & Cas d'utilisation

Ce ultra-thin flex PCB with metal stiffener is ideal for:

• Electronique grand public: Side-key flex cables, camera module FPCs, display connectors in smartphones/tablets.

• Éclairage LED: Ultra-thin LED strips and flexible neon signs, where the stiffener aids in heat sinking and mechanical fixing.

• Électronique automobile: Sensor wiring harnesses, dashboard backlight units requiring vibration resistance.

• Équipement industriel: Connections for precision probes, internal wiring in robotic arms needing localized reinforcement.

• Dispositifs médicaux: Internal interconnects for portable medical equipment demanding lightweight reliability.