Used in protect gold fingers when pcb spray - tin through tin stove as well as ware - soldering 用于印刷线路板( pcb )过锡炉喷锡和波峰焊过程中遮蔽保护金手指。
Cover layer and stiffener have similar properties , both possess high flexibility , good weather - ability , flame retardation , anti - ion - migration and heat resistance 覆盖膜和补强版的黏胶设计,具有稳定的抗撕强度与耐喷锡性,并确保贴合时不塞孔、不包气泡。
It is also equipped with tin spraying , anti - oxidizing coating , and gold , tin and silver emulsion processing capabilities . construction works are expected to complete in 12 months 此外,第二期厂房设备亦可处理喷锡抗氧化涂布沉金全板镀金沉锡及沉银等表面处理工序。
Monthly production capacity of 300000 square feet of high - precision pcb board of double - layer and above , capable of production of circuit boards of various surface treatment process to customer ' s requirements , ranging from tin leveled board with lead to lead - free tin - leveled board , and from chemical nickel / gold plated board to even environ - friendly coated board with anti - oxidation film 月产能30万平方英尺双层以上高精密pcb板,可根据客户要求生产各种不同的表面处理的线路板,从有铅喷锡板至无铅喷锡板,从化学镍金板至更加环保的防氧化膜涂层板。