Solder Mask Design Rules

The specification is intended to facilitate evaluation of solder mask by a vendor using a standard board system and to enable designer manufacturer and user together to qualify a. 6 1 solder mask design for copper traces generally solder mask will cover copper traces but in special cases traces can be exposed according to the specific requirements. Although solder mask is available in many colors it is most commonly applied in green.

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Pcb Solder Mask Design Basics Standards Materials And Processes

Pcb Prime

Pcb Design Guidelines Soldermask Eurocircuits Eurocircuits

How Is Solder Mask Applied On Pcb

Silk To Solder Mask Clearance Altium Designer 17 1 User Manual Documentation

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And in this case it has to be at least 0 1 mm.

Solder mask design rules. Tp track to pad the isolation between adjacent copper pads and tracks plans. Min solder mask clearance. Solder mask design basics standards. Most pcb design software packages allow you to set the distance between the solder mask and surface elements universally for the entire board or individually for elements.

Whichever is the larger additionally we ensure that our other design rules for soldermask are also met as below. It may also be possible to set both of these design parameters and allow the program to apply rules to determine the specification to apply to each case. Solder mask is usually made from resins because of its ability to resist humidity solder and high temperatures. The table below shows the minimum design rule values to achieve the minimum pi soldermask values.

This is because of the very high pigment loading involved with creating a white lpi solder mask. Pp pad to pad the isolation between adjacent copper pads. Mar mask annular ring the clearance between the soldermask and the copper pad. Moc mask overlap clearance distance between a copper track plane and an adjacent sm opening.

Solder mask is something that the solder doesn t like to stick to. When other colors are used it is often because of specific needs such as the color red being used to designate a prototype board. Information on the use of solder mask is contained in ipc sm 840c qualification and performance of permanent solder mask. Msm mask segment the bridge of soldermask between adjacent pads.

So it is around all pads to keep the solder on the pad. White solder mask white solder masks do not have the ability to resolve small features the way conventional green or even blue or red solder masks do. And the solder mask clearance is the space that is needed around the solder mask. 6 2 solder mask design for holes.

This is the minimum width of the solder mask.