Electronics Forum | Fri Nov 09 10:46:24 EST 2007 | hussman
What is the real problem? No-solder can mean a variety of things. No-solder due to lack of paste? No wetting to the part? Co-planer part? Please specify......
Electronics Forum | Mon Jan 29 10:11:12 EST 2007 | muse95
What does your customer want you to do? I would not want a CM soldering one of my boards with leadfree paste if I didn't ask him to. Whatever you do, get approval first. Two things to consider: If the other components are not rated for leadfree tem
Electronics Forum | Thu Jun 24 14:34:13 EDT 2004 | tjensen
There are many factors that can lead to solder balls. Since you have just recently seen this start to occur, it is obvious something has changed in the product or your process. Since we don't have a lot of details about your process, I would sugges
Electronics Forum | Thu Aug 13 12:55:46 EDT 1998 | Dave F
| Hi, can you please tell me how to make green coating and through-hole plating of PCB? Thanks! | Xingsheng Xingsheng: Welcome. Bible on PCB fabrication: Printed Circuits Handbook, Clyde Coombs, McGraw-Hill Web resources: http://www.pwbrc.org/ a
Electronics Forum | Tue Aug 17 13:39:30 EDT 1999 | Brian
| We have a design on which there is an ASIC that will not be produced anymore in the future. As we want to make this design over the next 10 years we are evaluating the possibility to buy the necessary ASICs for the next 10 years. This will give us
Electronics Forum | Mon Apr 28 09:59:04 EDT 2003 | davef
Your customer's question is reasonable. Soldering to nickel is not always a walk on the beach [can of corn, or whatever]. This issue is flux not solder. Your Sn63 will have plenty of strength, providing the solder connection is well formed. You s
Electronics Forum | Mon Dec 04 14:27:18 EST 2006 | pjc
Solder preforms can be used in SMT assembly for through-hole pin-in-paste process. In this process and modified aperture is used to print the paste with standard stencil printing, then a solder preform is picked and placed by a machine into the solde
Electronics Forum | Fri Apr 23 14:27:22 EDT 2010 | hegemon
I am concerned about a 'tarnishing' effect after moisture bake out that affects solderability on a batch of PCBs. This finish is new to us,and I am wondering if anyone has ideas about how to drive the moisture out of the boards without compromising
Electronics Forum | Tue Feb 21 14:02:25 EST 2006 | paligora
Hi People I will need some help on basic things really, we are replacing the existing solder pot with a lead free capable solder pot, but what are the other parameters that we need to look in to, to be able to achieve good quality soldering on the sa
Electronics Forum | Mon Apr 01 03:55:59 EDT 2019 | robl
Hi Lee, Depends on the pitch, but 3 main options: 1) Use solder preforms and intrusively reflow https://www.indium.com/solders/preforms/ 2) Use a selective solder machine on smallest nozzle or Robot with fine tip. Our Versaflow 3/45 can handle the
