清除锡渣
我们要把BGA上多余的锡渣除去,要求是要使BGA表面光滑,无任何毛刺(锡形成的)。
步——涂抹助焊膏(剂)
把BGA放在导电垫上,在BGA表面涂抹少量的助焊膏(剂)。
PCB stands for Printed Circuit Board. It is a flat board made of non-conductive material like fiberglass or plastic, with conductive tracks or pathways etched or printed onto its surface. These conductive tracks are used to connect various electronic components together, such as resistors, capacitors, transistors, and integrated circuits, to form a functioning electronic circuit. PCBs are widely used in electronic devices and are an essential part of modern electronics manufacturing.
工厂是指生产商品或提供服务的场所,通常有大量的设备和工人。工厂通常由一个或多个生产线组成,每个生产线负责不同的生产工序。工厂的目标是地生产产品,以满足市场需求。工厂通常由一个或多个经理来管理,他们负责安排生产计划、监督员工工作、控制生产成本等。工厂可以生产各种不同类型的产品,如汽车、电子产品、纺织品等。工厂也可以提供各种服务,如食品加工、印刷等。工厂在现代工业经济中起着重要的作用,对经济发展和就业创造有着重要的贡献。