The success of PCB manufacturing lies on the reliability and consistency of the process. To achieve this, strict tolerances must be maintained throughout the manufacturing process. In the world of PCB fabrication, tolerance refers to the amount of allowable deviation from a specified value. For example, a PCB trace width might have a tolerance of
The PCB industry has witnessed several changes over the years and one such was the transition from rigid to flexible circuit boards. For several years, engineers used to create flex circuit boards by connecting multiple small rigid boards with cables. This is because flex circuit board fabrication was a tedious process and quite expensive, too.
Key Takeaways ●Gain a greater understanding of the FMEA process. ●Develop a greater understanding of the FTA process. ●Understand how to discern which process best fits your company’s needs. Understand failure mode and effects analysis (FMEA) vs. fault tree analysis (FTA) to choose the right method for your company. Whether you work in the field
Using vias in a PCB design allows the designer to shorten the distance that a trace must be routed in order to complete its connection. Vias are metallic lined holes connected to the metal circuitry of a PCB that conduct an electrical signal between the different layers of the board. Although vias can vary
Deciding on the best testing method for your printed circuit board can be a daunting task. There are plenty of factors to take into consideration, including costs, coverage, and development lead time. However, there are two popular test strategies you’ll often find yourself choosing between: ICT testing vs flying probe testing.
Key Takeaways A PCB’s response to electrical, thermal, and mechanical stimuli depend primarily on the material of the substrate materials. Today’s designers have a range of options for PCB substrate materials, ranging from typical FR4 substrates to specialized low-loss laminates. Different material properties are more desirable in different applications, and designers should choose specific material
In high-frequency PCB boards, one of the more important types of interference is power supply noise. This article systematically analyzes the characteristics and causes of power supply noise appearing on the high-frequency PCB board, and combines engineering applications to propose some very effective and simple solutions. Analysis of power supply noise Power supply noise is
A printed circuit board (PCB) is a thin board made from fiberglass, composite epoxy, or other laminate materials. PCBs are found in various electrical and electronic components such as beepers, radios, radars, computer systems, etc. Different types of PCBs are used based on the applications. What are the various types of PCBs? What are the
Prototyping is a common procedure for most electronic components including printed circuit boards (PCBs). How businesses design and develop their electronic products has changed over the years. This impact can be felt in PCB design, too. Generally, the PCB design serves as the base for PCB prototyping where engineers create schematic diagrams that are referred
Etching often seems to be something creative such as giving shape to a sculpture, or drawing a design on a glass. However, this is a process used to refine and sculpt printed circuit boards. Printed circuit boards are made of different materials as substrate, such as copper, FR4, plastic, aluminum, and so on. However, all
