Electronics Forum | Mon Jul 16 10:44:29 EDT 2007 | Jacky
Hi All, Recently, we encountered strange defect at our SMT line. We can see solder ball spatter around at one of the component pad. This lead to insufficient solder defect at 1 side of the component. The other side of the component look good(Meet
Electronics Forum | Mon Jul 16 11:25:22 EDT 2007 | davef
For the problem part, describe the pads on the board and the aperatures on the stencil.
Electronics Forum | Mon Jul 16 16:42:40 EDT 2007 | pnguyvu
Hi Jacky, It seems you have solder bead problem, beading occurs when the solder paste brick splatter as a component is placed into it, after reflow, the splatter becomes a spherical solder ball. Hope this will help. Steve USA STENCILS
Electronics Forum | Fri Jul 20 16:39:18 EDT 2007 | john_smith
Jacky, we have had a similar problem. We needed to go to a smaller nozzle and also check your vacuume system and air kiss.Could be after placement when the machine blows air to insure the part is off the nozzle that it is effecting the solder brick.
Electronics Forum | Mon Sep 07 02:56:27 EDT 2015 | dadiru
Hi all I have a 0402 broken capacitor in several boards . I'm in the correct place to ask about the root /cause of this failure ?
Electronics Forum | Tue Apr 10 23:33:50 EDT 2001 | zam_bri
Hi.. What is the typical shelf life for chips capacitor 0603/0402 and what is the consequences of using the capacitor which more than 1 year old esplly on double reflow process. Pls help and thank you in advance. cheers
Electronics Forum | Thu Jul 09 00:15:39 EDT 2009 | jan_mancelita
Hi, do you know where and how we can tests 0402 ceramic capacitors? We would like to test them individually before we place them on our board; so as to get some test yield and the distribution of the parameters of this component based on the publish
Electronics Forum | Wed Aug 02 17:19:49 EDT 2006 | flipit
Yes 0402 8X4 embossed feeders exist for Panasonic MSR, Universal GSM, Contact Systems, and Mimot for sure. In the old days of 0402 components, 0402 resistors used to come in 8X4 paper tape but now I think most 0402 resistors and capacitors come in 8
Electronics Forum | Thu Jul 09 08:34:14 EDT 2009 | rway
Hi, do you know where and how we can tests 0402 > ceramic capacitors? We would like to test them > individually before we place them on our board; > so as to get some test yield and the distribution > of the parameters of this component based on
Electronics Forum | Fri Jul 10 01:50:53 EDT 2009 | jan_mancelita
> Hi, do you know where and how we can tests > 0402 > ceramic capacitors? We would like to > test them > individually before we place > them on our board; > so as to get some test > yield and the distribution > of the > parameters of this c
