28
Showerthought: I keep seeing people blast circuit boards with canned air upside down.
I watched a guy in our shop last week freeze a capacitor on a laptop motherboard because he held the can at a sharp angle, and the liquid propellant came out. That can cause thermal shock and crack solder joints, which is why the unit came back two days later with a new intermittent fault. Do you think shops should ban upside-down air duster use, or is that overkill?
3 comments
Log in to join the discussion
Log In3 Comments
elizabethblack15d agoMost Upvoted
Oh man, that story about freezing the capacitor is exactly why it's so bad! I saw a tech at my old job do the same thing and short out a whole row of tiny resistors on a graphics card. The liquid just shoots out and pools. A ban isn't overkill at all, it's basic safety.
8
the_felix10d ago
Totally agree, it's a disaster waiting to happen.
1