Electronics Forum | Fri Jun 28 01:06:49 EDT 2002 | Dreamsniper
Hi Steve, We have a Heller 1088 (4 Zone Oven) and we are using Indium NC92 with 2% silver. My Oven setting is: Zone 1 Top & Btm 125 Zone 2 Top & Btm 145 Zone 3 Top & Btm 188 Zone 4 Top & Btm 265 Belt Speed 34 cm/min I have run a profile
Electronics Forum | Mon Jun 12 13:08:20 EDT 2006 | jbrower
Howdy Bolos, My question to you is why do you feel the need to buy new equipment? We've changed over our processes to lead free and used our existing equipment. Heller 1500 (5 zone convection reflow) Electrovert econopak (wave solder) Honestly we hav
Electronics Forum | Tue Jun 25 15:30:49 EDT 2002 | Steve L
Hi everyone. I am now faced with a problem on soldering PBGA. At first, I ran the board (FR4, 7" X 10" with 12 layer) at Peak Temp: 205 C and 54 seconds above 183 C. After reflow, I found several cold solder joints and one ball without second collaps
Electronics Forum | Wed Jun 21 13:06:13 EDT 2006 | Nathan
Dear All, Thank you very much for your advices and comments. I appreciate that. Does anyone have any idea how much the good working condition second hand MY9 will cost? And how does MY9 compare to SMT 2350C in term of cost and performance? Regardin
Electronics Forum | Thu Oct 01 13:02:39 EDT 1998 | Frank
I didn't use my real name because I don't want to get bombed with phone calls and emails. We are an OEM looking to put in a SMT line soon. Is this GSM a decent machine? How much does it cost? | | Also and info on decent screen printers and re
Electronics Forum | Tue Oct 01 08:01:23 EDT 2002 | mjz289
WE USE A HELLER 1500 EXL OVEN (5 ZONE OVEN) AND HAVE BEEN DOING PBGAs FROM 292 TO 780 BALLS WITH .O32" PITCH (.8 mm) AND METAL STIFFENERS ON TOP WITH NO PROBLEMS. I AM GETTING 210 - 215 DEGREES C AT THE BGA BALLS WITH 50 - 65 SECONDS ABOVE LIQUIDUS
Electronics Forum | Mon Oct 26 12:56:23 EDT 2009 | rgduval
Eric, Protective sleeve? The sleeving protecting the wires of the thermocouples? I bought mine direct from Heller. I think it was $90 for a set of 3 (my oven uses 3 thermocouples). They are close to thirty feet long (I'm guessing...they're much
Electronics Forum | Mon Dec 03 14:49:23 EST 2018 | dleeper
Are they getting stuck inside the oven or at the very end? If thermal expansion is the problem the boards would be getting stuck in the reflow zone since that would be the hottest and therefore the point where thermal expansion would be the greatest
Electronics Forum | Tue Mar 20 07:11:39 EDT 2018 | rob
Just depends on who is local to you support wise then, as at your end of the market you want a good machine with cheap training & support Something like: DEK248 or 260 for printing $2K Philips Topaz or Mydata MY9 $5-10K (Mydata's are really easy to
Electronics Forum | Fri Oct 23 08:24:52 EDT 2009 | rgduval
Eric, I haven't used this oven; but, our Heller has built in profiling. Essentially, attach the thermo-couples to a board, and the appropriate point on the oven, and run a board (without parts). Your paste manufacturer will have published a reco
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