Product Details MCPCBA manufactures custom FR4 printed circuit boards with ENIG (Electroless Nickel Immersion Gold) surface finish and 2 oz copper options. These boards are designed for electronic applications that require reliable solderability, consistent surface quality and suitable current-carrying capacity.The service supports single-sided, double-sided and multilayer PCB fabrication based on customer Gerber files and technical requirements. From prototype development to volume production, board specifications can be customized according to circuit design, operating conditions and assembly requirements.ENIG Surface Finish for Reliable PCB AssemblyENIG is a widely used PCB surface finish that provides a flat solderable surface and good corrosion resistance. Its surface characteristics make it suitable for fine-pitch component assembly and circuit boards with demanding soldering requirements.For electronic products using SMT components, the flat finish can help support consistent soldering and assembly. ENIG is particularly useful when surface flatness, storage stability and reliable component connections are important considerations.Lead-free HASL, OSP and immersion tin are also available as alternative surface finishes, depending on the project requirements.2 oz Copper PCB for Power and Current-Carrying CircuitsCopper thickness is an important factor in PCB design because it affects current capacity, conductor resistance and heat generation. A 2 oz copper option can be considered for power circuits and other designs that require more copper than standard 1 oz boards.The appropriate copper weight depends on current, trace width, temperature rise, board structure and thermal conditions. MCPCBA supports different copper thicknesses so that the finished PCB can be matched to the electrical requirements of the application.FR4 and High-Tg PCB MaterialsFR4 is a widely used PCB base material valued for its electrical insulation, mechanical strength and versatility across electronic applications. High-Tg FR4 is available for designs that require a higher glass-transition temperature.Material selection should take into account operating temperature, board thickness, layer count, component density and assembly process. MCPCBA can manufacture boards according to the material and construction specified in the customer's design files.Custom Single-Sided, Double-Sided and Multilayer PCB FabricationMCPCBA supports different PCB structures for a range of circuit designs. Single-sided boards can suit relatively simple circuits, while double-sided and multilayer designs allow for more complex routing and higher circuit density.Custom manufacturing options include board dimensions, layer count, copper thickness, finished thickness, solder mask color and surface finish. Controlled impedance can also be specified for designs that require defined electrical characteristics.Customers can submit Gerber files and technical drawings for engineering review and manufacturing quotation.PCB Inspection and Electrical TestingPCB quality depends on both fabrication accuracy and electrical performance. MCPCBA lists AOI inspection, flying probe testing and electrical testing among its manufacturing inspection capabilities.The applicable inspection and testing plan can be determined according to board complexity, production quantity and customer quality requirements. IPC-A-600 and IPC-6012 are listed as applicable PCB quality standards.Applications of FR4 ENIG PCBIndustrial Control and Power ElectronicsFR4 PCBs with suitable copper thickness and surface finish can be used in industrial control circuits, power management boards and electronic control systems.Communication and Networking EquipmentCustom FR4 boards support communication modules, networking equipment and other electronic systems requiring reliable circuit connections.Automotive Electronics and LED LightingPCB designs for automotive electronic modules and LED lighting systems can be manufactured according to their specific electrical, thermal and mechanical requirements.Medical InstrumentationCustom FR4 PCBs can be used in electronic instrumentation and medical equipment, subject to the design, validation and quality requirements of the finished product.Consumer Electronics and IoT DevicesFR4 PCB fabrication supports consumer electronic products, embedded control boards and IoT devices with different circuit layouts and assembly needs.FR4 PCB Technical SpecificationsPCB Type: Custom FR4 printed circuit boardBase Material: FR4 / High-Tg FR4High-Tg Material: Tg 150–170°C, depending on material selectionPCB Layers: Single-sided, double-sided and multilayer, up to 20 layersCopper Thickness: 0.5–6 oz, with 2 oz as a standard optionBoard Thickness: 0.2–6.0 mmMinimum Hole Size: 0.15 mmMinimum Line Width / Spacing: 3.5 mil / 3.5 milSurface Finishes: ENIG, lead-free HASL, OSP and immersion tinSolder Mask Colors: Green, black, blue, white and matte blackTesting: AOI inspection, flying probe testing and electrical testingQuality Standards: IPC-A-600 / IPC-6012Final manufacturing capabilities should be confirmed against the approved Gerber files and project specifications.PCB Fabrication and PCBA Assembly ServiceIn addition to bare PCB manufacturing, MCPCBA offers PCBA services including SMT assembly, DIP assembly, component sourcing and functional testing.Customers can request bare boards or discuss a combined PCB fabrication and assembly project. Providing Gerber files, a BOM, assembly drawings, required quantities and testing requirements helps the manufacturing team evaluate the project and prepare a quotation.Custom FR4 PCB ManufacturingMCPCBA provides custom FR4 PCB fabrication for industrial, communication, automotive, medical instrumentation, consumer electronics and IoT applications. With configurable copper thickness, board construction and surface finish, the manufacturing process can be tailored to different electronic designs.Contact MCPCBA with your PCB files and technical requirements to discuss fabrication options, quality inspection and production planning.