OSP will be the abbreviation for Natural Solderability Preservatives, also referred to as bare copper, Entek. To put it simply, OSP is undoubtedly an natural pores and skin movie that grows chemically on the cleanse bare copper surface area. This movie is immune to oxidation, thermal shock and humidity and https://hdi-pcb-for-electronic-pr72715.blogunteer.com/30234109/temperature-resistance-flexible-pcb-an-overview