Inverter Motherboard PCB Prototype Service Bill Of Material Design Soldering

Inverter Motherboard PCB Prototype Service Bill Of Material Design Soldering

Common substrates

Often encountered materials in PCB assembly service:

• FR-2, phenolic paper or phenolic cotton paper, paper impregnated with a phenol formaldehyde resin. Common in consumer electronics with single-sided boards. Electrical properties inferior to FR-4. Poor arc resistance. Generally rated to 105 °C.
• FR-4, a woven fiberglass cloth impregnated with an epoxy resin. Low water absorption (up to about 0.15%), good insulation properties, good arc resistance. Very common. Several grades with somewhat different properties are available. Typically rated to 130 °C.
• Aluminum, or metal core board or insulated metal substrate (IMS), clad with thermally conductive thin dielectric - used for parts requiring significant cooling - power switches, LEDs. Consists of usually single, sometimes double layer thin circuit board based on e.g. FR-4, laminated on aluminum sheet metal, commonly 0.8, 1, 1.5, 2 or 3 mm thick. The thicker laminates sometimes also come with thicker copper metalization in PCB assembly.
• Flexible substrates - can be a standalone copper-clad foil or can be laminated to a thin stiffener, e.g. 50-130 µm
  • Kapton or UPILEX,a polyimide foil. Used for flexible printed circuits, in this form common in small form-factor consumer electronics or for flexible interconnects. Resistant to high temperatures.
  • Pyralux, a polyimide-fluoropolymer composite foil. Copper layer can delaminate during soldering.

Lighting application

The printed circuit board provides a universal base for a variety of high output LED applications. LED lighting solutions are rapidly evolving across industries where low power consumption, high efficiency and impressive light output are important. These LEDs gain more functionality when integrated with the PCB. PCBs facilitate expanded usage of LED lighting solutions, especially including displays and indicators.
Some of the most common applications for PCB LEDs within the lighting industry include the following:
1. Telecom Industry: Telecom equipment often uses PCB assembly service to control its LED indicators and displays. In this industry, lightweight and durable PCBs tend to be advantageous, mainly because of the mechanical density in the industry. Aluminum PCBs are often used in telecom lighting applications due to their better heat transfer properties than FR4 variants.
2. Automotive industry: PCB LED displays are commonly found in the automotive industry, especially dashboard indicators, headlights, brake lights and advanced panel displays. The industry particularly favors PCB prototype service LEDs due to their low manufacturing costs and impressive durability, which increases the value and lifespan of vehicles.
3. Computer Technology Industry: PCB-based LEDs are becoming more common in the computer technology industry, commonly found in desktop and laptop monitors and indicators. Due to the thermal sensitivity of computer technology, aluminum-based PCBs are particularly suitable for LED lighting applications within computers.

PCB Prototype Service Capacities and Technical Specification

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