Electronics Forum | Tue Sep 21 11:22:20 EDT 2004 | rlackey
Hi Arvydas, Do you want a machine specified at 20K per hour or to run at 20K per hour? Regarding Chipshooters I've worked with Siemens, Philips FCM's, Fuji's, Panasonics & Sanyo/Universal and the best in terms of reliabilty by a long way were the J
Electronics Forum | Wed Oct 06 09:23:51 EDT 2004 | mikecollier
The sampling rate on the KIC software can be changed by the user. The default setting is a sample rate of 60 seconds, so that, every 60 seconds the "old" measurement is subtracted from the "new" measurement to calculate the slope (i.e., start temp i
Electronics Forum | Wed Oct 06 22:55:14 EDT 2004 | davef
Your customer is correct. Components should not fall a board during a reasonable drop test. A shear test poorly represents a drop test. A drop test represents a drop test very well. If you want to proceed with shear testing, search the fine SMTne
Electronics Forum | Wed Oct 20 07:09:12 EDT 2004 | mattkehoe
Not really. Our process is a solid solder deposition application so we are not placing components into the wet paste prior to reflow. We print the paste then reflow is without components, trying to create a meniscus which is then washed, flattened,
Electronics Forum | Thu Oct 28 11:41:21 EDT 2004 | Steve Stach
Hello Loz, Blue residues on circuit boards can be caused by copper corrosion, component body deterioration, marking permanently, and adhesive break down. In this case, a more subtle mechanism appears to be possible. This is a no clean application
Electronics Forum | Tue Nov 02 05:28:24 EST 2004 | rlackey
Hi Chunks, That would be due to Mr Dumont asking for recommendations on types of ovens! Yes, I agree paste is a major factor, as is type of board (size, construction, palletisation, heat requirements etc), but also real experiences from users help
Electronics Forum | Fri Dec 10 16:53:05 EST 2004 | grayman
JD There are many lead free wave machines out in the market today. They promised to give best result for lead free. Companies here in our country who bought lead free wave machines 3 years ago is now having difficulties in controlling there machines
Electronics Forum | Thu Dec 23 03:13:47 EST 2004 | Steve Stach
The "Rose" test is a process control tool because it is cheap and easy to use. It has it's problems; but, it is generally agreed to be the best tool available for this purpose. All others are much more expensive and time consuming to run every day.
Electronics Forum | Thu Dec 16 14:51:15 EST 2004 | blnorman
It's driven by those highly technically astute politicians in Europe. IPC has a lead-free forum you can subscribe to and almost to a person in the forum agrees that elimination of lead in solder is assinine. From the automotive end of electronics
Electronics Forum | Tue Dec 21 11:46:29 EST 2004 | KEN
Are you adding liquid flux? Or paste "Gel" flux? If liquid flux: This, in my mind, is an unacceptable technique. Why? 1. Can not control metals content. 2. Probably not adding the same chemestry flux...as paste flux has many different addi
