Electronics Forum | Thu Jun 19 20:03:33 EDT 2003 | davef
Most of the BIG board fabs give comparisons, like you seek, on their sites. For instance: http://www.merix.com/main_res.html We have no relationship nor receive benefit from the company referenced in the above link. Finally, consider immersion ti
Electronics Forum | Thu Jun 19 12:47:47 EDT 2003 | russ
I would believe that the connector spec is for the max temp that it can withstand while the paste is the max temp that you need to achieve. Solder balls are usually from excessive ramp rates in the oven. I would contact the connector mfg. and see wh
Electronics Forum | Mon Jun 30 10:52:36 EDT 2003 | Bob
Suggest you ask vendor for a failure analysis. Ceramic chips have specific signatures for mechanical or thermal shock cracking. The vast majority of failures are due to mechanical flex. Depanelization and secondary operations such as hand insertion
Electronics Forum | Mon Jul 07 00:11:10 EDT 2003 | praveen
if the capacitors are placed very near to the edge and their position is 90 deg than it may cause crack.4thly if the reflow ramp rate is more than 3 deg C then it may crack. 5th ly if the solderin tip temp. is very high and soldering bit is very thi
Electronics Forum | Mon Jun 23 11:02:33 EDT 2003 | Kris
Hi, No Major issue using lead-free plated components in tin-lead as long as Sn/Bi is not the finish. I think some customer might be worried about low melting phase. More voiding may be seen in case of ceramic capacitors used with tin-lead. It is
Electronics Forum | Tue Jul 08 20:14:50 EDT 2003 | davef
YiEngr, MA/NY DDave: Please excuse the coarse language ... horse patoey!!! Companies been building reliable products with no-lead components and Sn/Pb solder for years. For example, TI has been shipping parts with leads whose solderability is prote
Electronics Forum | Mon Jun 23 11:24:12 EDT 2003 | procon
Titanium components are best for any suface in contact with lead free solder. We will be offering our brand solder fountain rework station utilizing Titanium components in July. Lead-Free solders seem to adhere to SST or cast pots and cause blockages
Electronics Forum | Mon Jun 23 12:50:49 EDT 2003 | russ
There are coatings available for Stainless that will greatly retard the solder from wetting to/eating the metal. This may be a cheaper route to go than Using all Titanium. The coating is melonite QPQ (quench-polish-quench)I really don't have any mo
Electronics Forum | Mon Jun 23 16:04:20 EDT 2003 | DG
There are some variations on how many parts are on a reel. A couple of distributors we use state it as a +/- 1% on a reel of 10,000. This only applies to chip parts (R's & C's) Most I.C.'s on Tape and reel are counted very accurately due to the pric
Electronics Forum | Tue Jun 24 21:10:31 EDT 2003 | davef
Try: * Tech-Mation International 952 Alton Parkway Irondale, Al 35210 205-833-4277 (fax) 4377 tiusa@bellsouth.net http://www.tech-mation.com Phil Higgins Mathew Bennett (sales) Eric Ford (sales) * Search other used equipemt suppliers listed in the
