Electronics Forum | Wed Oct 06 08:41:42 EDT 1999 | Dave F
| | Hi, | | | | Help! Could anyone help to enlighten me on this? | | | | Question: | | | | If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a n
Electronics Forum | Tue Jul 06 08:48:11 EDT 2010 | Sean
Hi all, Is anyone used to encounter PTH(plated through hole) crystal component(Not SMT component) become malfunction when the environment humidity is more than 90%? It is happening here...It is very weird that crystal become OK when humidity is bac
Electronics Forum | Fri Apr 30 03:49:25 EDT 1999 | Charles Stringer
| | | | We use Immersion Gold (AuNi) for our 20 mil pitch and BGA boards. | | | | Lately, we have been having solderability problems with boards with this surface from some of our suppliers. | | | | | | | | We are considering trying boards with Whit
Electronics Forum | Wed Apr 28 12:48:02 EDT 1999 | Justin Medernach
| | | We use Immersion Gold (AuNi) for our 20 mil pitch and BGA boards. | | | Lately, we have been having solderability problems with boards with this surface from some of our suppliers. | | | | | | We are considering trying boards with White Tin so
Electronics Forum | Tue Aug 31 22:03:30 EDT 2004 | KEN
If you have control over your design (as in an OEM) ENTEK can be a managable alternative. IF your like me (a CM), you get one of everything ever imagined. There has been much ado with ENTEK. Not every product is apropriate. For instance I have cu
Electronics Forum | Wed Jan 20 21:25:32 EST 1999 | Tony A
| I get white residue on my PCBs after vapor degreasing. No comments on the vapor degreaser. Yes, I still use one of these. I use a vapor degreaser and a 1,1,1 replacement solvent due to the quick clean and quick dry times. Anyway, I only get whi
Electronics Forum | Tue Nov 07 00:33:40 EST 2017 | aqueous
If no-clean flux is reflowed correctly, many of the activators are encapsulated within the resin residue left behind after reflow. An ionic contamination test cannot differentiate between ionic residue that was encapsulated (not harmful) and residues
Electronics Forum | Tue Feb 16 08:54:57 EST 1999 | Ross Berntson
| I am fairly new to the SMT game and I am getting conflicting answers to the following. Maybe someone can help me! When printing, one person is telling me that the stencil should be wiped completely clean of all paste because the quality of the
Electronics Forum | Fri Oct 09 12:53:20 EDT 1998 | Justin Medernach
Hi Guys, It's me. I've been on a hiatus from the forum for a while. Duty calls (so does my boss, often). I'm looking for a good no-clean. Sounds like a western movie, "Howdy pard, I'ma looking for a few good no-cleans. I'm in process of beginnin
Electronics Forum | Tue Jul 21 10:36:31 EDT 1998 | Justin Medernach
| | Recently at the Nepcon show I saw Panasonic KME placing 0201's, must say | | with my olde eyes it was hard for me to even see the little buggers. Wondering if any of you are placing 0201's? what are the pros & cons, UPH, and what equipment you
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