DETAILS, FICTION AND FOUR-LAYER TIN-SPRAYING MODULE POWER PCB

OSP is definitely the abbreviation for Natural Solderability Preservatives, generally known as bare copper, Entek. To put it simply, OSP is an natural skin movie that grows chemically with a clean bare copper surface area. This film is resistant to oxidation, thermal shock and humidity and safeguards the copper floor from even further rusting (oxid