Use standard colors and large shapes to make the silkscreen stand out. Many PCB assembly services charge for double-sided PCB printing. You have to try to limit the silkscreen to one side. The company provides the PCB in diverse specifications. Knowing the importance of silkscreen printed PCB, it is important that you source it from a trusted manufacturer like PCBPartner. Therefore, when you choose silkscreen for your PCB, you must make the right choice. The following are a few things to consider when designing the PCB with a silkscreen legend. The color and properties of the ink are the color contributing factor. Epoxy ink is used in manual screen printing, and acrylic ink is used for the DLP. The cost of ink will depend on the method of silkscreen printing you have opted for. The acrylic link is not suited for the PCBs that may have silver finishes.įactors to Keep in Mind When Designing Silk Screen for Your PCBĭo you know the silkscreen contributes to 12-15% of the total PCB costs? The text design includes character width, height, thickness, spacing, and positioning. The ink is applied to the PCB using the CAD software. During this process, inkjet projector and acrylic inks are used. This is one of the most expensive processes among the other three. The setup time for this type of printing is high. LPI uses white color, and it requires more ink than the other two types of silk screen printing. This method ensures higher accuracy than manual screen printing. The board is cured and developed after it. However, in this method, the laminate is coated with epoxy, and then it is brought under the UV light. The process of LPI is almost the same as the solder mask application. This method is used for screen printing the lines that are greater than 4 mil. and it supports large text size, That will take years to perfect. This is one of the easiest ways to create a silkscreen layer. Next, the ink is cured in the baking oven. The ink is directed through the stencil on to the layer or laminate. Manual screen printing is performed using a stencil comprising text and traces. This is done for PCBs when the registration tolerance is 0. Identify manufacturer marks, version numbers, and so on Identify the numbers that are unique to the printed circuit board. Locate the parts through reference designators ![]() What Information Does a Silkscreen Provide?Ī silkscreen may not have any role in the functioning of a PCB however, it is valued for the information that it delivers. The color is typically white, although other colors are also available. The graphics and text on printed circuit board is usually printed with a permanent non-conductive epoxy ink. It is used to mark component values, part numbers, test points, polarity, etc. ![]() which can help users during the assembly. The silkscreen layer is the top layer of the PCB and serves as a reference indicator for placing components on the PCB.
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