INDICATORS ON HDI PCB FOR ELECTRONIC PRODUCTS YOU SHOULD KNOW

OSP may be the abbreviation for Organic Solderability Preservatives, also known as bare copper, Entek. simply put, OSP is an organic skin film that grows chemically on a cleanse bare copper surface. This movie is proof against oxidation, thermal shock and humidity and guards the copper surface from more rusting (oxidation or sulphidation etcetera.ï