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lands

The term lands occurs in CD technology and in printed circuit board technology.

  1. In CD technology, lands are the parts of the tracks of a compact disc (CD) or DVD that have not been burned by the laser. This part is also referred to as a flat and is raised in contrast to the pits.
    Data track on a CD-ROM with pits and lands, photo: c't 7/98

    Data track on a CD-ROM with pits and lands, photo: c't 7/98

    Important for the reproduction of data is the reflectivity of the lands, the Intensity Land( IL). This reflectivity is given as a percentage and is measured at several points on the CD surface.
  2. In PCB technology, lands are contact pads on which the bumps of the chips are bonded. They are also referred to as PCB lands. The arrangement of PCB pads for a chip is also called a land pattern. The traces of the lands lead to adjacent vias.
Informations:
Englisch: lands
Updated at: 03.08.2020
#Words: 146
Links: call deflection (ETSI) (CD), printed circuit board (PCB), indium (In), compact disc (CD), digital versatile disc (DVD)
Translations: DE
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