Major differences between pad and via in Protel

A while ago, I drew a few PCB copies and added several welding disks in the form of through holes to the PCB. As a result, I followed the command "p"-> "V" and was working in the PCB drawing board mode, when we see a circle with a hole, we mistakenly think it was a pad.

When you draw a PCB in Protel, pad is similar to. If you need to confirm whether it is pad or via, you need to check its attributes.

Next, the result is that the PCB proofing is back. I am dumb. Originally, I wanted to weld the wire to the through hole, but now I couldn't find the place where the exposed copper foil was. I wanted to make the pad and it was covered by green oil.

Later, I looked at the other via on the PCB and realized that I had made a mistake and put the pad into a via. However, when I drew the PCB, the pad and via looked very similar, so I made a mistake.

After a while, I suddenly remembered that my boss told me to draw a PCB made of an aluminum substrate last time because I realized that pad and via were very similar, I suspect that the last PCB has mistakenly converted the pad into.

I checked the PCB diagram. If so, the picture was wrong. I don't know whether the mass production of the aluminum substrate PCB was completed. If mass production was completed, it would be a batch mistake and a sin. Therefore, I dare not ask the boss about the board, let's die in silence. A person is such a thing that hides his ears and steals the bell. Since then, thousands of times have repeatedly said the same joke. People who make such mistakes will never repent. It would be ridiculous if we were able to settle down.

In this regard, do not be reckless after watching the sun, but remember to watch the sun on June 2012 AD.

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