Electronics Forum | Wed Aug 15 05:19:14 EDT 2001 | hardy boy
Hi, I have a fine pitch QFP (TQFP100) and after reflow soldering, i got less solder ( not enough fillet) on the toe area but have good fillet at the heel. Does this mean that I have a weak solder joint or is my process not too good ? What is importa
Electronics Forum | Fri Apr 16 17:20:34 EDT 2021 | astarotf
We are currently producing a project that brings a TQFP64. But some boards do not solder the component well with its ideal fillet, some are well soldered when they come out of the reflow oven, but some are not. Can the pins be sulphated? How can we c
Electronics Forum | Thu Aug 16 20:11:21 EDT 2001 | davef
Hussman is correct. Make those people quit. [Just walk-up, pimp slap 'em, grab their dental pick, and say "Dave says you can't use this any more. I'm just following orders."][Trust me, this is much smoother than the "Tonya Harding Approach" that I
Electronics Forum | Mon Jul 07 11:46:29 EDT 2008 | aj
Hi All, Can anyone advise the spec for land size of a lead 0.2mm in width? I am placing a TQFP128 0.4mm pitch, the leads seem to be wider than the actual pads they are been placed on? I am also experiencing poor wetting on this part , it has NiPdAU
Electronics Forum | Tue Apr 20 12:28:46 EDT 2021 | kylehunter
I agree with DWL's comments. Also, your profile is really really inconsistent. How did you attach the probes to the board? You have a 25c delta in your peak temps. Unless that is from a probe lifting, that is really bad. What type of oven are you usi
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