packaging laminated on cadence

silkscreen top: a character layer, the top layer generally called a character or character element surface, and an outer frame for the various components of name identification, etc., are used in this layer arrangement, preferably with place_bound_top think the same, and with a 1 foot identification.
assemly top: a mounting layer, it is the actual size of the components, components used to generate the assembly of FIG. This layer may also be used for layout; frame size portion (body size) in addition to the pad member be;
place_bound_top: Component is the actual size of the package, to prevent two superposed components not being given. Frame size needs to include pads included.
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