Drilling


DRILLING
Minimum mechanical drilled hole size: .005”
Minimum slot width size: .020”

.Unplated Plated
<.040 +/- .001 +/- .002
.040”-.093” +/- .0015” +/- .003”
.094”-.257” +/- .002” +/- .004”
>.257” +/- .003” +/- .004”
Minimum distance, edge to edge, from plated hole to internal circuitry or plane: .010” internal / .007” external
Minimum distance, edge to edge, from non-plated hole to circuitry: .010” internal / .007” external
Standard finished minimum annular ring if not specified otherwise: .001”
Minimum signal pad must be larger than drilled hole diameter: .015” internal / .012” external
Minimum plane clearance must be larger than nominal finished hole .025”
Tighter annular ring is possible with tolerance or by reducing finished annular ring requirements.
Plasma desmear + etch back available