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CEM-3 é mais leve que FR4, o peso médio é de cerca de 3,5 kg/m². mas agora a maioria dos fabricantes de PCB usa menos material CEM-3 para fazer PCB,quase uso material FR4.
consulte Mais informação: FR4 PCB
#Design de PCB #Materiais PCB
Temos um projeto de nova produção baseado em PCB incluindo esp32. Como nosso engenheiro de hardware pode programá-lo após o processo PCBA pelo fornecedor?
I’m using some 0.1% precision 10k and 150k resistors. They are thin film 0603 surface mount. For a lot more, there are also thick film types. Fundamentally and practically, what is the difference between these two?
Embora a adsorção de umidade pelo FR4 seja bastante baixa, qual a melhor forma de minimizá-lo ou eliminá-lo completamente?
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