Electronics Forum | Mon Mar 13 04:49:59 EST 2006 | Fhail
Hi All, I'm new in PCBA process. Recently in my leadfree production we encountered a missing ring on some of the ring on the board after we ran hem through Wave soldering machine. The board has gone through double reflow prior to the Wave soldering.
Electronics Forum | Wed Feb 28 14:14:08 EST 2007 | CAN
We have just setup 2 inline cleaners on one RO system, in the past the machines were on there own internal system and hte beds would last 3-6 weeks (I know it depends on the amount of use). Now with 2 machines on the same RO system I'm lucky if we ge
Electronics Forum | Fri Jun 08 15:37:41 EDT 2007 | ck_the_flip
Jim: I have limited knowledge, but here's what I know: 1. Yes, it's a standard process. In today's SMTNet, it's rarely mentioned, and few people reply to postings. 2. Nope. It's a "specialty" piece of equipment for most CEM's. Depending on you
Electronics Forum | Mon Feb 25 08:14:04 EST 2008 | adetuc
Hi ... We use DRS24C Air-Vac machines for placing BGA devices, and have been having problems with shorts on corners of one device in particular, its a PBGA and its size is 4.5cm square and 15grams weight. When the component is picked up and the com
Electronics Forum | Mon Dec 21 12:20:52 EST 2009 | MLD
Here is my question to the Guru's on this site. Lead free boards to go though Wave / reflow - and then sent through a water wash 2 day's prior to Hand assembling a 50mil ribbon connector. This is a 4 layer board with 2x2116 pre-preg (.036 1/1 5x762
Electronics Forum | Thu Apr 01 03:44:31 EDT 2010 | nico67640
Good Morning Nicolas, > > Per J-STD-033B, 5.3.3.2 > states that a Dry cabintet maintained at not > greater than 5% RH may be considered MBB > storage. > > Hope this helps > > Chris Thanks Chris for your answer. I'm ok with you about the per
Electronics Forum | Thu Jun 24 14:32:59 EDT 2010 | remullis
Not sure what's in your line equipment wise, but you need to know relatively what kind of placements per day you run regardless of the mix. We run around 1.1 million across 5 lines in 3 shift. Calculate what kind of placement per day on a specific
Electronics Forum | Mon Jan 17 17:38:29 EST 2011 | bandjwet
All: I am reaching out to get some suggestions on the right flux to use as well as a recommended cleaning process for soldering a KOVAR RF shield using 80/20 Au/Sn solder to a ceramic hybrid. The recommended profile is 4-5 min at 280C and at least
Electronics Forum | Sat Dec 17 16:46:45 EST 2011 | eadthem
Startup current depends on your configuration. ours dose zones 1,2/ 3,4/ 5/ 6,7 last i checked it pulled about 40-55 ish on start up and 25-35 during run. our profile is a slow ramp till 170c then a fast ramp to 285c 280c(last 2 zones). 1707's
Electronics Forum | Tue Mar 06 17:22:42 EST 2012 | acsscott
OK, did some more testing this afternoon. First, I moved the LED’s from feeder location #23 to Feeder location 30. This is three down from the other component(#33) it is picking, so it should be able to hit them both at the same time for two of the
