weatherbox:dragonfruit:pcb_rules

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weatherbox:dragonfruit:pcb_rules [2016/02/24 20:50]
garrettz
weatherbox:dragonfruit:pcb_rules [2021/09/19 21:59] (current)
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-==== PCB Professional Design Rules ====+====== PCB Professional Design Rules ======
 These 28 Basic PCB design guidelines set out best practice to reduce the cost of your boards and to minimize the risk of errors arising during manufacture. These 28 Basic PCB design guidelines set out best practice to reduce the cost of your boards and to minimize the risk of errors arising during manufacture.
 +
 High power boards have different rules especially in terms of spacing, traces size and power isolation. Manufacturers have different requirements;​ make sure you read their own guidelines before sending your design. Naming and file formats also vary depending on the manufacturers. High power boards have different rules especially in terms of spacing, traces size and power isolation. Manufacturers have different requirements;​ make sure you read their own guidelines before sending your design. Naming and file formats also vary depending on the manufacturers.
-===PCB Layout===+ 
 +//Taken from [[http://​blog.upverter.com/​post/​102541308937/​28pcb|Upverter Blog]]// 
 +====PCB Layout====
   - Create your board frame on a 0.05” grid. Make the lower left corner start at 0,0.   - Create your board frame on a 0.05” grid. Make the lower left corner start at 0,0.
   - Usually the board frame is rectangular. For specific reasons you could also do other types of shapes such as polygons.   - Usually the board frame is rectangular. For specific reasons you could also do other types of shapes such as polygons.
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   - Use appropriate power symbols for All VCC, 5V, 3.3V etc.   - Use appropriate power symbols for All VCC, 5V, 3.3V etc.
   - Add color notes to separate a complex design into various smaller bits (for example,​charge circuit, accelerometer,​ etc).   - Add color notes to separate a complex design into various smaller bits (for example,​charge circuit, accelerometer,​ etc).
-===Footprints=== +====Footprints==== 
-  - All footprints need a reference designator ​{{refdes}}. If you come across a part on a board that doesn’t have this, you should change it and save the library. For parts requiring it a pin one marker should be defined.+  - All footprints need a reference designator ​(refdes). If you come across a part on a board that doesn’t have this, you should change it and save the library. For parts requiring it a pin one marker should be defined.
   - All footprints need silkscreen indicators showing mechanical sizes, dimensions, or anything wired about the part.   - All footprints need silkscreen indicators showing mechanical sizes, dimensions, or anything wired about the part.
   - To prevent it from flaking off easily silkscreen within a footprint or board should not go over pads or metal that will be exposed.   - To prevent it from flaking off easily silkscreen within a footprint or board should not go over pads or metal that will be exposed.
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  • Last modified: 2021/09/19 21:59
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