Full Feature hold notice, exposed copper at board edge.
PostPosted: Tue Oct 09, 2012 11:34 am
A very high percentage of orders are placed on hold due to insufficient board edge to copper clearance.
We care about exposed copper at the board edge for a couple of reasons.
[*]Copper can tear when it is routed, leaving strings that can short to adjacent layers.
[*]Exposed copper can wick solder in a wave solder process, causing shorts at assembly.
[*]Exposed copper at the board edge can make contact with your product chassis, causing a short to ground and/or risk of electrical shock.
You can avoid having your order stop for this defect condition by meeting the following minimum clearance guidelines:
Copper features on outer layer .010” from board edge
Copper features on inner layer .020” from board edge
Copper features on v-score board .030” from board edge
Copper features .010” from edge of cutout, on outer layers
Copper features .020” from edge of cutout, on inner layers
For details of Sunstone Circuits commercial standards and capabilities please refer to our website;
PCB Manufacturing Capabilities
We care about exposed copper at the board edge for a couple of reasons.
[*]Copper can tear when it is routed, leaving strings that can short to adjacent layers.
[*]Exposed copper can wick solder in a wave solder process, causing shorts at assembly.
[*]Exposed copper at the board edge can make contact with your product chassis, causing a short to ground and/or risk of electrical shock.
You can avoid having your order stop for this defect condition by meeting the following minimum clearance guidelines:
Copper features on outer layer .010” from board edge
Copper features on inner layer .020” from board edge
Copper features on v-score board .030” from board edge
Copper features .010” from edge of cutout, on outer layers
Copper features .020” from edge of cutout, on inner layers
For details of Sunstone Circuits commercial standards and capabilities please refer to our website;
PCB Manufacturing Capabilities