Electronics Forum | Thu Dec 10 12:12:40 EST 2020 | robl
Yep, done it previously with a multipot machine. Using with wirefeed to top up the pots means you only have a contamintion risk when you fit a new top up reel. Used separate nozzles for both, but theoretically using titanium nozzles would mean no c
Electronics Forum | Tue Dec 15 14:38:23 EST 2020 | emeto
I have done it different ways on different equipment. 1. Remove alloy one from the machine. Add alloy two only. and use it.For next board, do the same. 2. There are machines with separate sections for PB and PC-Free, so pots are away from each other
Electronics Forum | Wed Jul 30 00:47:10 EDT 2014 | matusov
Hello gurus, I am a hardware designer with a small company. We are about to send a new PCB for fabrication. This board uses dozens of tiny QFN, DFN, and similar packages. As a final check I have been going through the datasheets of all these parts t
Electronics Forum | Tue Aug 23 03:29:37 EDT 2022 | samhe
I received a buck-boost DCDC board with an optical sensor from NextPCB, so I mounted the components and measured the efficiency. Table of contents Board received from NextPCB Solder paste printing Mounting of parts Reflow operation check Attaching
Electronics Forum | Sun Apr 18 01:58:23 EDT 1999 | Steve Gregory
Just to further explain myself a bit, and why I hate being bombarded by advertisements, is because I think others (sales and marketing people) are trying to manipulate me. Why do I think that? Say if you have 5 pick and place salesmen, 1 from Fuj
Electronics Forum | Mon Apr 19 13:05:31 EDT 1999 | Bob
Steve, Like you, I am sick, sick, sick of marketing. I can't go on the Internet, to a ball game or my local 7-11 without being bombarded with marketing. 7-11? Would you belive I went there to buy a Sunday paper yesterday and now they have a 27" mo
Electronics Forum | Tue Nov 06 10:28:58 EST 2018 | davef
Media Links IPC Global Insight This weekly electronic newsletter includes IPC news and multimedia information on manufacturing and management best practices and solutions, new technologies, standards, government relations and environment, health and
Electronics Forum | Tue Apr 10 13:12:41 EDT 2001 | davef
You've told us nothing about your situation, process, boards, or anything!!! If you leave some boards with very fine solder connections on the shelf for a cuppla years, the grain will become coarse. What do you mean when you say "grainy"? What is
Electronics Forum | Wed Aug 21 11:36:05 EDT 2002 | scwalsall
Regarding the non-adherence of this maintenance schedule......should we expect to see flux condensate on our solder joints?? Possibly leading to solder joint contamination, dry joints, solderability issues in production etc.??
Electronics Forum | Fri Apr 23 13:56:57 EDT 2004 | Robert
Hi all Does any one know problem with solder joint call crystallised joints. I have noticed that sometimes on our PCB when i look at the joints for example chips, LCCC, there are areas not smooth solder (very often in the center of the solder joint)
winsouce.jpg)
.gif)
