특허청 기술경찰
Bottom : Bottom Tracks
Dimension : Board outlines
Pads : exposed copper on both top and bottom sides of the board.
Vias : Holes used to route a signal from top to bottom side
tPlace : Top side Silk screen (Silkscreen printed on the top side of the board.)
bPlace : Bottom side Silk screen (Silkscreen printed on the bottom side of the board.)
tOrigins : Top origins, which you click to move and manipulate an individual part.
bOrigins : Origins for parts on the bottom side of the board.
tStop : Absent solder mask on the Top side of the board (Soldermask is not be applied) (사용할일 없음)
bStop : Absent solder mask on the Bottom side of the board (Soldermask is not be applied) (사용할일 없음)
이걸 써야하는 특수한경우도 있지만 왼만하면 쓸일이 없다.