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Posts by Eyal78‭

6 posts
71%
+3 −0
Q&A Thermal Relief – Yes or No?

In my PCB design, I have 0402 components connected to polygons. To reduce the risk of tombstoning, I connected them using thermal relief. My guiding principle is that if heat dissipation is not sy...

1 answer  ·  posted 3mo ago by Eyal78‭  ·  last activity 2mo ago by Olin Lathrop‭

Question pcb-layout thermal-relief manufacturing
71%
+3 −0
Q&A Power polygon and matching ground

For power polygon that primarily carry DC, how critical is it that it is located above a ground plane? If it is important, how crucial is it that the polygon completely overlaps the ground plane b...

2 answers  ·  posted 3mo ago by Eyal78‭  ·  last activity 2mo ago by Olin Lathrop‭

Question PCB pcb-layout ground-plane
62%
+3 −1
Q&A Does My Circuit Contain High-Speed Signals?

My circuit includes the following components: • PIC16 with internal clock, frequency: 32 MHz • ST LED2000 LED driver (a buck converter) with a PWM dimming input. The converter itself isn't a conc...

2 answers  ·  posted 2mo ago by Eyal78‭  ·  last activity 2mo ago by TonyStewart‭

Question PCB high-speed pcb-layout layout
60%
+1 −0
Q&A Solder mask bridge issue

From what I understand, PCB manufacturing has a limitation on the minimum width of the solder resist—it cannot be too thin, typically not less than 5 mil. In many components, including those with a...

1 answer  ·  posted 3mo ago by Eyal78‭  ·  last activity 2mo ago by Olin Lathrop‭

Question PCB pcb-layout manufacturing
57%
+2 −1
Q&A Signals and plane on the same layer

Hi, I’m working on a PCB layout, which is only about the second board I’ve ever designed. I’d appreciate some help with the following issue: This board has two layers: The top layer is used f...

3 answers  ·  posted 3mo ago by Eyal78‭  ·  last activity 2mo ago by TonyStewart‭

Question pcb-layout ground-plane
57%
+2 −1
Q&A Thick trace or a Polygon?

Suppose I use a wide trace as a power rail in my circuit (wide enough for the rated current, at a certain copper weight), and it doesn’t have an adjacent ground plane. If I have enough space on the...

1 answer  ·  posted 2mo ago by Eyal78‭  ·  edited 2mo ago by Eyal78‭

Question PCB pcb-layout