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Update PCB Knowledge authored by Daniel Kemp's avatar Daniel Kemp
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PCB-Knowledge.md
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......@@ -14,7 +14,7 @@ When ordering PCBs, review the stack layout, tolerances, and substrate material
| Vendor | Pros | Cons | Resources |
| ------ | ------ | ------ | ------- |
|[Oshpark](https://oshpark.com/)|USA, Trusted, quick, purple|Substrate spikes on the edges|[4-Layer Coplanar Waveguide](https://hackaday.io/project/162998-the-rise-and-fall-of-pulses/log/168604-osh-park-4-layer-coplanar-waveguide), [Layer Stackup](https://docs.oshpark.com/services/four-layer/)|
|[Circuit Graphics (circuitboard.com)](https://www.circuitboard.com/)|USA (SLC), Quick, Cheap, Lets us use our own material|Unreliable with *hard* substrates (Rogers)||
|[Circuit Graphics (circuitboard.com)](https://www.circuitboard.com/)|USA (SLC), Quick, Cheap, Lets us use our own material|Unreliable with *hard* substrates (Rogers), limited quality control||
|[Aisler](https://aisler.net/)|Germany||[4-Layer Stackup](uploads/8677eae4d989433f8921fc0295f53705/aisler_4layer_stackup_20200128.png), [Analysis](uploads/0aa8ac5ac462819a7724b922543cc67f/aisler_analysis.pdf)|
|[PCBWay](https://www.pcbway.com/)|Reasonable job with Rogers|China||
|[Fast-PCB](https://www.fast-pcb.com/)||China||
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