Electronics Forum | Fri Aug 24 04:58:54 EDT 2007 | gsala
Thank you Davef, by googling 2512 R (plus Lead Free) I found plenty of interesting informations about the subject. What I have seen 2512 R is one of the "hot" smd chip resistor used for several Reliability Test Vehicles or Trials. Seen also availa
Electronics Forum | Wed Feb 20 15:20:34 EST 2013 | hegemon
Depending on your requirements, you could range from a hair dryer, heat gun, toaster oven, hot plate, on up to digitally controlled surfaces and convective systems. You'll have to gauge for yourself whether you are just trying to add some heat energy
Electronics Forum | Sat Feb 14 19:35:51 EST 1998 | C. Lao
Mr Lao We have some specialist knowledge on this subject and offer both equipment and services for these tests. My first recommendation is that take coupons manufactured by your PC Fabricator and then samples at each manufacturing stage: Bare coupon
Electronics Forum | Sun Sep 28 17:14:53 EDT 2008 | ronsou
small pads like 0402 tend to get hot quite > easily. looks like excessive heat is your problem > here. pads are wetted, component leads are not. > this means solder paste flux on top layer was > exhausted before entering in reflow. your profile
Electronics Forum | Fri May 14 15:03:19 EDT 1999 | lima
| | Does anyone know of any industry guidelines for the exhausting of volatiles in reflow ovens? I've seen some numbers like 1,000ppm for the oven atmosphere, but is this typical? | | | | My concern is the volatiles in my WS629 solder paste may be
Electronics Forum | Thu Jan 06 17:56:14 EST 2000 | Brian W.
I agree with Dave that passte volume is the most preferable criteria. However, you need to determine what you will accept and what your process is capable of. You need to define the process parameters, put procedures in place to control them, reduc
Electronics Forum | Thu Aug 05 04:32:21 EDT 1999 | Wolfgang Busko
| I am currently in the process of setting up an SMD Parts Package Database. The database will contain dimensional information to be used by the placement machinery to process parts (I.E Package Type, # of Leads, Lead dimensions, Lead pitch(s), etc.
Electronics Forum | Wed Apr 21 12:01:22 EDT 1999 | jseagle
| To all who will be potentially my salvation, | | I am currently researching Polyimide stencils for possible use and manufacture. If I may be indulged - with due reference to all past enquiries and notes on the subject - can anyone offer an up to d
Electronics Forum | Thu Aug 20 09:38:02 EDT 1998 | JUSTIN MEDERNACH
| I am interested in hearing about people's experiences with buying used pick and place and stencil printing equipment. For example, was the cost saving worth the experience, was technical support available before and after the sale, did you deal dir
Electronics Forum | Wed Sep 25 15:03:17 EDT 2002 | davef
Mike: You're correct, but a newbee doesn't care. A newbee is so thankful to just get through the clutter and ACTUALLY have the thread posted [and maybe get someone to respond with something that they can use to get their boss to just shut his BIG y
