Tag: board

  • Printed Circuit Board What Is A Printed Circuit Board?

    The places where the components are assembled are usually gilded, because untreated bare copper quickly oxidizes and therefore cannot be easily welded. Traditionally, each exposed copper was welded by hot air leveling. The HASL finish prevents oxidation of the underlying copper and thus ensures a weldable surface. This solder was a tin-lead alloy, but new…