11/30/2022 0 Comments Yudu silkscreen machine![]() In your layout program, you can place text and part outlines on the silkscreen layer instead of copper.įor example, in Copper Connection simply choose the silkscreen layer before placing text, or select the existing text and switch the layer to silkscreen. You can’t put traces or parts in the same places, as the copper text would interfere and change the circuit. Unfortunately, when part outlines and text are drawn on the copper layer, they are electrically conductive. #Yudu silkscreen machine software#You don’t need to do anything in your PCB layout software to enable tin coating, as it is simply a basic step in manufacturing. They are acceptable if you want to save money. Tin-plated boards without solder masks or silkscreen are the least expensive. Printed circuit board with lead-free plating Notice that the metal is whiter than plain copper. The image below shows copper text, traces, and pads plated with a lead-free finish. This coating is easier to solder and slows the rate of oxidation. When you order a professionally-manufactured circuit board, they plate the copper with a mix of tin, lead, silver, and/or other metal. ![]() In that case, you will need to scrub or chemically treat the oxidized copper pads before soldering, or else the solder will not stick reliably. Printed circuit board copper-only etched at home (poorly, I admit)Ĭlean copper solders acceptably, but over time the copper oxides. They all have a reddish brown metallic color. Notice the text, pads, and traces are all made out of the same material (copper). If you etch the board at home, the elements will have a similar look to the image below. Right: Trace, pad, and text elements drawn on top copper layer ![]() To see the examples in this article, click on the file and save it.ĭownload Copper Connection, the PCB layout software. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |