Thick film resistors are screen-printed. The alumina substrate is metalized then a resistive paste is deposited on top of the terminals. It is later trimmed, coated, metalized on the edges, and plated.
Thin film (ou filme metálico) resistors have said film vacuum deposited, allowing for a much more uniform and controlled resistive element. They then undergo similar finishing steps to trim, coat, and metalize the edges.
Como um resultado, thick film resistors are generally cheaper than their thin film counterparts, but the tolerance and temperature coefficients one can get out of thin film resistors are generally better. Depending on the materials used, there is plenty of overlap between the two, but all things equal, thin film offer better performance for a cost premium.
consulte Mais informação: Assembléia PCB
In the world of printed circuit board design and manufacturing, precision and accuracy are paramount.…
Soldering is a cornerstone technique in electronics assembly, it's used to connect electrical pieces and…
Hoje em dia, electronic products are both compact and lightweight while performing a variety of functions. este…
As technology continues to advance in the electronics industry, packaging remains one of the key…
Bringing your electronic ideas to life begins with PCB drawing, which is the process of…
Printed Circuit Board design is one of the most significant processes in electronics production. Deciding…