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The technique

Material

Industry standard quality
  • FR4
  • 0.062 in (all products)
  • 0.039 in (1,2 & 4 layer only)
  • 1 ounce CU
  • Lead-free HAL or ENIG (Electroless Nickel Gold)



Layout requirements

  • Many file formats and all kinds of board edges are accepted, without any extra charge!
  • Component Pad Annular ring > 0.2 mm
    Via Pad Annular ring > 0.15 mm
    Via Pad Annular ring > 0.125 mm - extra charge applies
    ( Annular ring = The pad area that remains after a hole is drilled through the pad.The value denotes the distance from the edge of drill to the edge of the copper pad), at minimum track size / gap dimensions.
  • Soldermask > 0.075 mm (Increase soldermask by a minimum of 0.075 mm per side) (0.15 mm in total) to ensure no soldermask on pads)
  • Multilayer inner layers > 0.3 mm
    (please ensure there is a minimum distance of 0.3 mm from edge of drill to copper on inner layers,positive and negative)
  • Standard: smallest Drill-end diameter = 0.3 mm (12mil)
  • Optional: smallest Drill-end diameter = 0.2 mm (8mil) - extra charge applies

Track/Gap

Singlesided pcbs:
  • Standard: minimum track size = 0.15 mm (6mil)
  • Optional: minimum track size = 0.125 mm (5mil) extra charge
  • Standard: minimum gap size = 0.15 mm (6mil)
  • Optional: minimum gap size = 0.125 mm (5mil) extra charge

Doublesided / 4 & 6 layer pcbs:

  • Standard: minimum track size = 0.15 mm (6mil)
  • Optional: minimum track size = 0.125 mm (5mil) extra charge
  • Standard: minimum gap size = 0.15 mm (6mil)
  • Optional: minimum gap size = 0.125 mm (5mil) extra charge

Area

The minimum surface area required for an individual PCB order is 16 inches². Printed circuit boards with a surface area smaller than 1 dm² are invoiced at the 16 inches² price. Several small PCBs can be stepped up on a multipanel, in order to reach the minimum surface area of 16 inches². Such a multipanel may only have 1 contour/board edge!
We will provide you with single pieces for a flat rate Rout Charge (Please note: any drills with a diameter of 6mm or more will be considered as internal cut- outs and subject to the same Rout Charge).

The multipanel set-up is done for you by our team - free of charge!

Soldermask

Solder resist is a green covering in which clearances are made for solder areas (e.g. pads) and for SMD connectors.

These are therefore kept free from tinning in the soldering process. Applying soldermask means that tinning is applied more economically (so that flooding does not occur) and notably, the risk of shorting in finely structured boards is kept to a minimum. Also, soldermask results in greater air gaps between tracks. Last but not least, solder resist gives your board a more professional looking finish.

We use only photosensitive solder resist, applied either in liquid form or as a foil through a vacuum laminating process.

We charge a flat-rate fee for each side when a solder mask is applied to single-sided or double-sided circuit boards. This fee is independent of the circuit board size.

For 4-layer & 6-layer pcbs the soldermask is included in price.

Position print

Position print is white and can be printed on either or both sides (TOP and BOTTOM).

So as not to cover any pads, the position print in PCB-POOL® is clipped away from corresponding soldermask pads by 0.1 mm (4mil). If you wish to order silkscreen, please note, that a correct adhesion in accordance with IPC standard is only guaranteed, if you choose the soldermask option.

We charge a flat-rate fee for each side when a position print is applied to single-sided, double-sided and 4/6-layer multilayer PCBs. This fee is independent of the circuit board size.

Attention: Unless otherwise stated layers where an eagle file is in question layers 21 and 25 will be used to generate the position print.

E-Test

With electrical testing, all tracks are checked for breaks and shorting. Until now, e-testing of PCBs using a needle adapter or a flying probe was exorbitantly priced. Thanks to PCB POOL® these costs have been dramatically reduced!