Sep 24,2024
The Development History of Resistors
Resistors are fundamental components in circuits. After testing the conductivity of various materials and discovering the presence of current, early scientists gradually developed the concept of resistance. Scientists have discovered that copper, gold, and aluminum are excellent conductors with low resistance, while air, mica, and ceramics are considered resistors because they can greatly restrict the flow of current. Although industry insiders have long known about its resistance performance, the reliable resistors we know today have never been born until Otis Boykin created the first inexpensive and reliable resistor in 1961, allowing scientists to accurately control the amount of current transmitted to a certain component. With his breakthrough, the resistance of resistors to extreme temperatures and oscillations was greatly reduced, ultimately making low-cost production possible. With the US military, IBM, and numerous consumer electronics manufacturers placing orders to purchase Boykin's new resistors, their presence is ubiquitous from household appliances and computers to guided missiles.
Sep 24,2024
Common power cable technology! Worth collecting!
What are the types of commonly used wires and cables according to their purposes?
Sep 09,2024
Common structures of soft hard composite boards
Rigid Flex PCB is a new electronic interconnect technology that integrates rigid printed circuit boards (PCBs) and flexible printed circuits (FPCs).
Sep 09,2024
The signal layer is mainly used to arrange wires on printed circuit boards. Protel99SE provides 32 signal layers, including Top layer, Bottom layer, and 30 MidLayer layers.
Sep 09,2024
How to improve the problem of copper free holes in multi-layer PCB circuit boards?
Add high-pressure water washing and gel residue removal processes to holes that are prone to dust generation (such as holes with a diameter below 0.3mm containing 0.3mm).
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