Recent Posts
Category
Flexible Printed Circuit Board Overview
Introduction On a slightly less romantic level, it would not be feasible to have such a standard laptop or mobile phone without flexible print circuit technology, which enables components to be linked electrically, in a dynamic, three-dimensional fashion. Flexible circuit technology has a long history that dates back over 100 years. The early patent activity emphasizes the fact that inventions such as Thomas Edison, Frank Sprague, and others in the early twentieth century experimented on ideas for flexible circuit materials and designs that were only used on a commercial basis in recent decades. Background Flexible printed circuits (FPCs) are the heart and soul ...
Lead Vs lead-free soldering for PCB assembly
What is soldering? Solder is the name for bonding metals. Soldering is a crucial aspect of the electronics industry, as it is the basic method of connecting electrical equipment to a PC Board [1]. You have to heat the metal at a high temperature and join the parts, and then it will create a perfect electric connection between them when it cools. [caption id="attachment_668" align="alignleft" width="300"] [2] soldering[/caption] Differences of leaded and lead-free soldering Wetting: Another distinguishing feature is the difference in moisture content. Wetting refers to how well-molten solder paste adheres to the board's components on the Printed Circuit Board [3]. Solder that has ...
PCB FABRICATION SUBSTRATES
What is PCB substrate? Every home is required to have a solid foundation. A substrate is also required for every printed circuit board [1]. The actual substance that contains the traces and elements is known as the PCB Fabrication substrate. The first step in creating a high-quality PCB is selecting the correct substrate. Structure and shape are required for a PCB. It also requires a platform or canvas on which to place all of its other components. The PCB's performance is influenced by the substrate's properties. A stiff substrate, for example, can improve the PCB's strength and endurance. More design options ...
SMT Assembly Conformal Coating
Definition Conformal coating is a thin layer of protected polymeric coating applied to printed circuit boards (PCBs) and electronic components. Its goal is to provide environmental and mechanical protection for the components and circuits, allowing them to last longer and be more reliable. It maintains long-term surface insulation resistance values by being electrically insulating, ensuring the assembly's operational integrity. It also prevents corrosion by acting as a barrier to airborne pollutants from the operational environment, like salt spray. Conformal coatings are often applied in the 25-250 micron range. Parylene films, on the other hand, are applied significantly thinner and can be fractions of ...
Layouts of SMT Assembly Line
What is an SMT assembly line? SMT is a technique that is being used to manufacture assembled pcb’s. Many years ago, circuits were large and cumbersome using hard wire and large through hole components, resulting in electrical products that were large and difficult to operate and transport. Comparing to the conventional method, SMT offers the following advantages: high density, good stability, less cost, miniaturization, sound field control, and other features. For the size of the previously used through hole components to be decreased and modified to be matched with the smaller electronic component, the electronic device must become micro, such as the ...