The introduction of phenolic resin-based laminates in the 1930s improved mechanical stability and insulation. However, the game-changer was the development of glass-reinforced epoxy laminates (FR-4) in 1940, offering superior electrical insulation, moisture resistance, and mechanical durability.
A PCB is a substrate or laminate that supports and connects electronic components to enable various device functionalities. Common substrates include FR4 (flame retardant material), but there are alternatives such as polyimide for flexible designs. PCBs are categorized by layers—single-sided, double-sided, and multi-layer—and by substrate type (rigid, flexible, or rigid-flex combinations)
Surface Mount Technology (SMT) board assembly is a critical and widely used process in modern PCB manufacturing. This process involves placing and soldering electronic components directly onto the surface of PCB pads.
Surface mount technology is a method of assembling electronic components onto a printed circuit board (PCB). Unlike traditional through-hole technology, where the leads of the component are inserted through holes in the PCB, SMT involves mounting the component directly onto the surface of the PCB. SMT offers advantages such as smaller size, higher manufacturing efficiency, and compatibility with automated assembly processes.
SMT, the short form of Surface Mount Technology, a type of PCB (Printed Circuit Board) assembly technology, refers to the technology of getting components directly soldered onto the surface of PCB to replace THT (Through-Hole Technology) that has to make use of drilling holes
Thin film resistors have a metallic film that is vacuum deposited on an insulating substrate. Thick film resistors are produced by firing a special paste onto the substrate. The paste is mixture of glass and metal oxides. Thin film is more accurate, has better temperature coefficient and is more stable.
PCB design translates electrical schematics into a functional product, and its quality directly impacts production efficiency and product reliability. For beginners, mastering PCB layout can be challenging despite familiarity with design software, and common issues often arise. Here, seasoned engineers from KKPCB share their PCB layout insights to help avoid these pitfalls and inspire best practices.
Proper PCB design requires careful planning and attention to detail, from schematic creation to component layout and wiring. Following these best practices ensures optimized signal integrity, reduces interference, and minimizes manufacturing issues, leading to higher-quality and more reliable PCB designs.
PCB layering or stacking is a way of stacking multiple printed circuit boards together while ensuring that there are predefined interconnections between them, allowing multiple printed circuit boards to be installed in the same device. These multi-layer PCBs can multiply the speed and functionality of a device and are composed of at least three conductive layers, with the bottom layer being composited with an insulating board