A.Top LayerB.Bottom LayerC.Mechanical 1D.Top Overlay
A.1號(hào)焊盤B.絲印左上角C.圖形左下角D.0號(hào)焊盤
設(shè)計(jì)規(guī)則如圖所示,則電源線(VCC)會(huì)布多寬?()
A.20或40milB.20milC.40milD.30mil