Electronics Forum: what is tombstoning (Page 13 of 67)

What is delta t?

Electronics Forum | Thu Oct 25 16:22:29 EDT 2007 | mpolak

OK if you could email it to me it would be great

What is delta t?

Electronics Forum | Fri Oct 26 10:24:09 EDT 2007 | hussman

Oh, no daggers Steve, those are hugs where I come from.

What is delta t?

Electronics Forum | Fri Oct 26 13:16:44 EDT 2007 | mpolak

its polakmarcin ( at ) o2.pl

What is the issue?

Electronics Forum | Fri Aug 07 19:41:12 EDT 2020 | rsatmech

Attached the data sheet for your reference. We are using in line SPI for paste control. Lead free process.

What is the issue?

Electronics Forum | Fri Aug 07 20:11:35 EDT 2020 | rsatmech

Thanks for your inputs. Much helpful. I will try this.

Re: What is TCP

Electronics Forum | Tue Oct 12 07:19:56 EDT 1999 | D Scott

| Do anyone know what is TCP. I was told it is tape carrier package but have found nothing relating to this. Could someone please explain the whole tecnology and point to site relating to this so that i can understand more on this. | I would star

How old is old?

Electronics Forum | Fri Sep 20 16:25:47 EDT 2002 | bdoyle

ok time for a "what if" What if someone came back a year after a question was posted. The question dealt with a problem that this person had but didn't exactly cover everything. Would it be better for this person to post a new thread (and then mig

What is this?

Electronics Forum | Thu Nov 07 12:07:46 EST 2002 | slthomas

This is more of a two-dimensional phenomenon than the linear features (wrinkles) that I would associate with disturbed solder. What I should do is contact my own solder supplier on this, I guess, but it hasn't been particularly high on my priority l

What is the issue?

Electronics Forum | Tue Aug 04 14:29:14 EDT 2020 | dwl

Is the component an LGA or BGA? If its a BGA, it appears like the component is missing balls, if its an LGA, it appears like the solder isn't wetting to the component. What solder are you using? The wetting to the larger pads in the last pic seems

What is delta t?

Electronics Forum | Wed Oct 24 15:10:12 EDT 2007 | slthomas

You may very well be right Hussman, but I'm not certain that marcin knows exactly what he wants to know. :) I would call that ramp rate, not delta t, but that's my language. marcin, what I'm talking about are the varying temperatures on your board d


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