2-Layer FR-4 PCB | 1.6mm grosime, Lead-Free HASL | Prototip & Production - UGPCB

High-Performance FR-4 Double-Sided PCB Product Overview & Definiţie

Acest 2-Layer Rigid Placă de circuit tipărită (PCB) from UGPCB is a fundamental and widely used electronic interconnect solution. It features a standard 1.6mm board thickness, dimensions of 224.02mm x 189mm, and utilizes high-grade KB FR-4 laminate. This double-sided PCB serves as the essential “backbone” for electronic designs, providing reliable electrical connections and mechanical support for components. It is an ideal, cost-effective choice for a vast range of industrial control, Electronica de consum, and power supply applications.

2-Layer Rigid Printed Circuit Board

Critical Design Considerations

Successful design of a double-sided PCB requires balancing electrical performance with manufacturability. Key considerations include:

Routing Strategy: Efficiently utilize both top and bottom layers for trace routing. Plated Through-Holes (PTHs or Vias) enable inter-layer connections. Careful planning of trace density is crucial to prevent signal integrity issues like crosstalk.
Hole & Pad Design: Specify appropriate drill sizes and pad diameters for all PCB vias and component leads to ensure mechanical strength and soldering reliability, adhering to Standardele IPC for annular ring.
Putere & Ground Planes: While dedicated planes are absent, designers should widen power and ground traces or implement a gridded copper pour to reduce impedance and enhance stability—a key aspect of robust Design PCB.
Design Rule Check (DRC): Prior to fabrication, rigorously verify that all parameters (trace width/clearance, hole sizes) align with the manufacturer’s capabilities (as per this board’s specs) to guarantee PCB design for manufacturability (DFM).

Principiul de lucru & Structura

The functionality of this double-layer circuit board stems from its layered structure:

Construction: The core consists of an FR-4 insulating dielectric layer, clad with copper foil (typically 1 Oz) on both sides. The unwanted copper is etched away during Fabricarea PCB, forming the desired circuit traces.
Electrical Interconnection: Circuits on the two layers are connected vertically via Plated Through-Holes (PTHs), created through mechanical drilling followed by electroless and electrolytic copper deposition.
Surface Protection: The Lead-Free Hot Air Solder Leveling (Sângera) finish applied to exposed copper pads prevents oxidation and ensures excellent solderability for component assembly.

Product Classification & Materiale

Per the provided specifications, this product is accurately classified as follows:

By Layer Count: Double-Sided PCB sau 2-Strat PCB.
By Substrate Rigidity: Rigid PCB.
By Base Material: FR-4 PCB. Mai exact, FR-4 from the “KB” brand, an epoxy glass laminate known for superior electrical insulation, rezistență mecanică, and flame retardancy (UL94-V0).
By Surface Finish: Lead-Free HASL PCB.
By Application Complexity: Standard, General-Purpose Industrial-Grade PCB.

Performanţă & Caracteristici cheie

Leveraging the specified materials and processes, this PCB delivers the following core performance benefits:

Reliable Mechanical & Performanță electrică: The KB FR-4 material offers stable dielectric constant and low dissipation factor for signal integrity. The 1.6mm standard thickness provides excellent resistance to bending and vibration.
Dependable Interconnections: The Lead-Free HASL surface finish provides a flat, highly solderable coating compatible with both wave soldering and hand soldering processes.
Superior Thermal Stability: FR-4 substrate withstands standard soldering temperatures and offers a high continuous operating temperature, suitable for most industrial electronics environments.
High Cost-Effectiveness: Compared to multi-layer boards, double-sided PCBs offer significantly lower PCB fabrication cost and shorter lead times, representing an economical hardware solution.
Environmental Compliance: The Lead-Free HASL process complies with international directives such as RoHS.

Detailed Manufacturing Process

UGPCB adheres to a stringent, high-standard PCB manufacturing process:

Engineering & CAM: Gerber file analysis, DFM check, and photoplot generation.
Panelization: Cutting the large FR-4 copper-clad laminate into production panels.
Foraj: CNC drilling of component holes and PCB vias.
Hole Metallization: Desmear, chemical copper deposition, and electrolytic copper plating to form conductive Plated Through-Holes (PTHs).
Patterning: Applying photoresist, exposure, development to transfer the circuit image.
Gravură: Removing unwanted copper to form precise circuit traces.
Masca de lipit & Mătase: Applying LPI solder mask (typically green) and legend printing.
Surface Finish: Applying Lead-Free HASL coating to exposed pads.
Routing & Testare electrică: Profiling to final board outline and performing Electrical Test (Flying Probe or Fixture Test).
Inspecție finală & Ambalaj: Comprehensive Inspecție optică automată (Aoi), dimensional verification, and vacuum-sealed, moisture-proof packaging.

Aplicații primare & Cazuri de utilizare

This specification of double-sided FR-4 PCB is widely deployed in reliable and cost-sensitive aplicații:

Industrial Control Systems: PLC controllers, motor drive boards, sensor interface modules.
Power Supply Units: Switch-mode power supplies (SMPS), UPS systems, LED driver boards.
Electronica de consum: Appliance control boards (AC, washing machines), smart home controllers, audio equipment.
Electronică auto: Body control modules (BCM), lighting controllers, non-critical infotainment systems.
Telecommunications Equipment: Functional modules within routers, switches.
Test & Measurement Instruments: Data acquisition and display panels for equipment.

One of the Key Applications of Double-Layer Lead-Free HASL PCB: Electronica de consum

Why Choose UGPCB for Your Double-Sided PCB Needs?

Partnering with UGPCB guarantees:

Precision Manufacturing: Strict adherence to 1.6mm thickness, 224.02x189mm dimensions, şi FR-4 material specifications.
Process Excellence: Standardized Lead-Free HASL PCB production ensures batch-to-batch consistency and reliability.
Expert Technical Support: Our team provides comprehensive support, din Design PCB recenzie to production consultation.
Fast Turnkey Delivery: We offer competitive lead times for standard double-layer PCB prototypes and production runs.

Ready to start your project? Contact UGPCB today for a competitive quote and expert support. Let us be your trusted Producător de PCB and partner for success.