Circuits West, LLC
PCB Prototype and Production Specialists
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MECHANICAL
MECHANICAL DRILL CAPABILITIES
**
Specs
Primary drilled hole locaion tolerance to datum zero (DTP)
0.003"
2nd drill hole location tolerance to datum zero (DTP)
0.003"
Minimum clearance from copper conductor to mechanical drilled hole
0.007"
Finished panel thickness < 0.031"
0.003" finished hole
Finished panel thickness 0.062"
0.004" finished hole
Finished panel thickness 0.093"
0.008" finished hole
Finished panel thickness 0.125"
0.010" finished hole
Finished panel thickness 0.187"
0.016" finished hole
Plated hole sizetolerance
+ 0.003" standard; 0.002" special
Plated hole size press fit applications
+ 0.002" typical
Aspect ratio
10:1
Plated hole spacing min. (drilled hole to hole)
0.008"
NON-PLATED THROUGH HOLES
**
Specs
Smallest non-plated hole size
0.006"
Largest non-plated hole size routed
No Limit
Non-plated routed hole tolerance
+0.005" typical; +0.003" special
Minimum npth to edge of board spacing
0.010"
BLIND / BURIED VIAS
**
Specs
Min. finished via hole diameter (epoxy filled)
0.006"
Max. finished via hole diameter (epoxy filled)
0.04"
Max. aspect ratio for epoxy filled via holes
8:1
Resin
Conductive & Non-conductive
CONTROLLED DEPTH
**
Specs
Backdrill - pth stub removal
PTH + 0.010" diameter (typical)
Minimum backside dielectric separation
0.003"
Control depth drill depth tolerance
+ 0.002"
Minimum back drill diameter
0.014"
Drilled hole over finished hole size
0.010"
SCORING CAPABILITIES
**
Specs
Optimum remaning web thickness
Typical max. 1/3 of thickness
Remaining web tolerance
+ 0.005"
True position tolerance
+ 0.005"
EDGE CONNECTOR BEVEL CAPABILITIES
**
Specs
Finger tip angle
15*, 20*, 30*, 45*
Beveldepth tolerance
+ 0.005"
PROFILE CAPABILITIES
**
Specs
Standard router bit diameter
0.093", 0.062", 0.031" (Router bits); 0.021" special
Routed profile tolerance
+ 0.005" standard; + 0.004" special
Minimum internal rout radius
0.016" standard; special 0.005"
Minimum routed PTH slot width
0.014" typical W / 0.006" min
Controlled depth milling
Yes