Electronics Forum | Mon Nov 06 12:43:35 EST 2023 | milas
Hi We are mounting an microphone device (SMT package) onto a PCB which has an ENIG finish and, observed some contamination on the underside of the device, post reflow. The SEM analysis shows that the contamination has a high level of Carbon. Where c
Electronics Forum | Mon Jul 08 14:52:40 EDT 2013 | hegemon
The smaller ball "missing" from the lower left is from solder migrating down into the adjacent via. The solder mask may have been damaged or missing prior to mounting the BGA device. The larger balls at the top right are due to uneven heating during
Electronics Forum | Thu Feb 04 20:31:10 EST 1999 | Dave F
| I'm researching SO-8 power RF device mounting methods. | | Possible mounting method | | 1. Via thru holes | | Still the thermal resistance of the PCB too high | | Do you have suggestions for mounting the component, PCB/? | Joni: What is it ab
Electronics Forum | Tue Feb 02 09:47:45 EST 1999 | Justin Medernach
| Hi everybody. | Somebody know any consideration or special care to make a profile for BGA's. | | any advice is aprecied. | | thanks | Al Carrillo | | Hi Al, A BGA should be looked at just like any other surface mount device. However, just
Electronics Forum | Tue Feb 02 17:51:45 EST 1999 | gcollier
| | Hi everybody. | | Somebody know any consideration or special care to make a profile for BGA's. | | | | any advice is aprecied. | | | | thanks | | Al Carrillo | | | | | Hi Al, | A BGA should be looked at just like any other surface mount d
Electronics Forum | Mon Sep 20 10:17:19 EDT 1999 | Jeanjean
Hi all, As a student in elctronic sciences, I'd like to know why there is a difference in the voltage required for PC boards with surface mounted devices and the voltage needed by traditionnal components like leaded film capacitors? I wonder if it
Electronics Forum | Wed Aug 18 22:01:35 EDT 1999 | Stu Leech
We have developed a new process for removing moisture from surface mount devices. We have one site where PCB laminate drying has been reduced to 1.5 hours. A standard oven took 4 hours to do the job. I am looking for a firm who does large scale board
Electronics Forum | Wed Aug 18 22:02:24 EDT 1999 | Stu Leech
| We have developed a new process for removing moisture from surface mount devices. We have one site where PCB laminate drying has been reduced to 1.5 hours. A standard oven took 4 hours to do the job. I am looking for a firm who does large scale boa
Electronics Forum | Wed Aug 18 22:21:26 EDT 1999 | Dave F
| | We have developed a new process for removing moisture from surface mount devices. We have one site where PCB laminate drying has been reduced to 1.5 hours. A standard oven took 4 hours to do the job. I am looking for a firm who does large scale b
Electronics Forum | Thu Aug 19 05:42:01 EDT 1999 | Brian
| We have developed a new process for removing moisture from surface mount devices. We have one site where PCB laminate drying has been reduced to 1.5 hours. A standard oven took 4 hours to do the job. I am looking for a firm who does large scale boa
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