Electronics Forum | Thu Apr 22 11:46:20 EDT 2004 | rkevin
We used type 4 no clean from Aim too with this application. The price was only about 20 % more than type 3 powder. Works great. They didn't have a long leadtime, my paste was in stock. I have had simalar problems with Indium. They got too big too fas
Electronics Forum | Thu Apr 15 20:55:36 EDT 2004 | Ken
Try: Tungsten, tungsten carbide, ceramics like boron-nitride or how about pyrex glass? Glass blowers could make "hooks" that connect to a cross bar. I would NOT use aluminum (even if anodized). Try stainless steel 316. 303, 304 do not have enough
Electronics Forum | Fri Apr 16 08:49:07 EDT 2004 | Chris Lampron
Hi Barry, Your best course of action is to perform a thermal profile and determine exactly what the times/temps are in these locations. Try to match your profile to the recommendations of your solder paste. (Time between 130-160, Time over 183 and m
Electronics Forum | Thu Apr 22 12:27:47 EDT 2004 | barry
I placed thermo's at 2 of the problem devices. Soak (time 150 to 180) 100 sec. Time above 180 =80 secs with 208 deg. peak. The solder appeared to flow at these pads, but little to no adhesion to the joint.Total time in oven was 5 min. All other joint
Electronics Forum | Thu Apr 22 06:42:03 EDT 2004 | Chris Lampron
Adam, What is the pad finish on the flex circuit? Is this the only component that you are having problems with? (on this Flex)If this is the only problem area on the flex (assuming there is more than one component)then that would lead me towards the
Electronics Forum | Thu Apr 29 14:41:12 EDT 2004 | pjc
OK if the paper is transparent and you can adjust the table X-Y-Theta under the paper- without moving the paper - the align with the solder lands on the board. If you have a DEK or MPM machine, the Mylar frame is like $300. I belive other printer mfr
Electronics Forum | Wed Apr 28 10:13:24 EDT 2004 | onesime
Hi out there, I have an ongoing project in wich I have to use several BGAs. As I have no practice at soldering those components I want to take advantage of their self centering features . can any one gives me a tip on securing components? does any on
Electronics Forum | Wed Apr 28 12:10:14 EDT 2004 | paul_bmc
Are your solder balls after reflow a perfect sphere or are they oblong, like chushed. I know a heavy bga or incorrect reflow profile could cause bridging. Also too much flux paste. Sometimes what we do is brush the flux paste onto the pcb pads inst
Electronics Forum | Fri Jun 04 21:12:03 EDT 2004 | johnwnz
Also look at VI Technology they have a number of machines, I've used the LS180 and it's increadibly good, very easy to program and has a host of features that soem of the othesr don't have. http://www.vitechnology.com/laser/ls180.htm the beam works i
Electronics Forum | Tue May 04 14:15:46 EDT 2004 | michasm2
I'm looking for some input on a pay scale for experienced SRT/DRS operators. They do not do any profiling or process work - only remove/site prep/replace type work, along with any 'special' jobs like trace repair, masking repair, etc. They're current
A US manufacturer of quality hand tools for those engaged in the repair, rework, R & D, testing, and assembly of electronic components and printed circuit boards from Through Hole to 2Mil Pitch Surface Mount.
98 Elm St.
Portland, ME USA
Phone: 1-207-775-6139
