What is New in IPC-7351C.pdf - 第16页
PC B L ibr ar i es Pr e s ents : Wh at is N ew i n IPC- 7351C I PC -7351 C Cont ou r Cour ty ar d Out l ine s
PCB Libraries Presents:
What is New in IPC-7351C
IPC-7351C Contour Courtyard Outlines
The recommended courtyard outline line widths are 0.05 mm or 0.01 mm
PCB Libraries Presents:
What is New in IPC-7351C
IPC-7351C Contour Courtyard Outlines
PCB Libraries Presents:
What is New in IPC-7351C
Silkscreen Outline Pkg. Body Hatching
Quad Flat Package
QFP
Ball Grid Array
BGA
Pull-back Quad Flat No-lead
PQFN
• The Maximum Component Body tolerance is the starting place for
mapping a silkscreen outline inside edge
• Silkscreen should only be applied to edges of the plastic component
package or hatched (corner cropping) larger component packages like
BGA, CGA and LGA packages
• It is not recommended to map silkscreen outlines to land pattern pads