产品质量的形成贯穿于产品形成的全过程,印制电路板(PCB)产品品质与制造全过程都有关,而首先取决于设计。PCB用什么基材和尺寸大小由设计决定,PCB层数、孔和线路走向与宽度由设计决定,PCB表面用什么涂覆层由设计决定。设计决定了PCB的先天性能,应该说:PCB品质源于设计。PCB设计通常是由用户或用户委托的设计单位完成,PCB制造企业是只接受PCB产品文件(电路布设图和结构尺寸图等),按图加工。虽然PCB制造企 The formation of product quality throughout the entire process of product formation, printed circuit board (PCB) product quality and manufacturing process are related, and above all depends on the design. What substrate and size of the PCB are up to the design, the PCB layers, hole and line direction and width are up to the design, and the coating on the PCB surface is up to the design. Design determines the innate performance of the PCB, it should be said: PCB quality comes from the design. PCB design is usually done by the user or the user commissioned by the design unit, PCB manufacturing companies only accept PCB product documentation (circuit layout and structure dimensions, etc.), according to map processing. Although PCB manufacturers