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
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…
Os dispositivos eletrônicos que usamos estão em constante mudança e atualização. Eles estão ficando menores e mais funcionais,…
A montagem de PCB é um processo altamente complicado, em que a precisão é sempre essencial. Even…
É importante garantir que um projeto de PCB seja confiável porque qualquer erro de projeto,…
Ao projetar a placa de circuito, a high level of concentration is given towards PCB signal…