Technological parameters:

• minimum hole diameter 0,4 mm (0,5 mm recommended);
• minimum path width 0,2 mm (8 mils);
• minimum path to path or path to pad distance 0,2 mm (8 mils);
• pad diameters should be larger than hole diameters for minimum 0,3 mm (12 mils);
• description loceted on PCB should be at least 0,25 mm (10 mils) thick and sould not be located on pads;
• enlargement of mask pads to copper should be at least 0,1 mm (4 mils) for diameter;
• minimum unmasked edge distance from adjacent path should be 0,12 mm (5 mils);
• minimum distance path to PCB edge or pad to PCB edge should be 0,2 mm (8 mils);
• minimum technological format 200 x 240 mm;
• maximum technological format 358 x 600 mm.

Accepted file formats
Aperture files:

• most file formats generated by common PCB project programs are accepted (Protel, Autotrax, Pcad, Eagle etc.).

Layer files:

• we prefer GERBER files or files generated from Protel programme;
• other formats acceptable after agreement.

Drill files:

• we expect ASCII files EXCELLON format;
• in EXCELLON file header or in the external file we expect the drill (or other tool) diameters;
• for metallized PCB it is necessary to confirm whether hole diameters are giver before or after metallisation.

Project mechanical requirements:

• project should contain the machining diagram;
• lines should be done with 1 mills aperture;
• cutting line should not be led through copper;
• distance from cutting line to copper should be more than 0,2 mm (8 mils).