NEW STEP BY STEP MAP FOR SIX-LAYER LONG AND SHORT GOLD FINGER PCB CIRCUIT BOARD

OSP will be the abbreviation for Organic and natural Solderability Preservatives, also referred to as bare copper, Entek. simply put, OSP is undoubtedly an natural and organic pores and skin movie that grows chemically over a clean up bare copper area. This movie is immune to oxidation, thermal shock and humidity and guards the copper area from fur