Quality Systems Reprise
In electronics, printed circuit boards, or PCBs, are utilized to mechanically support electronic components which have their connection leads soldered onto copper pads in surface install applications or through rilled holes in the board and copper pads for soldering the component leads in thru-hole applications. A board style may have all thru-hole parts on the leading or part side, a mix of thru-hole and surface mount on the top side only, a mix of thru-hole and surface area install parts on the top side and surface area mount elements on the bottom or circuit side, or surface mount elements... [...]