Electronics Forum: 2mm (Page 8 of 25)

Re: wave solder bridges

Electronics Forum | Thu Jul 27 11:47:02 EDT 2000 | Jason

i've rotated the board with the same result. What are soldertheif pads. I'm new to wave soldering and this is another new one on me. What did you use? where do you put the pads? please explain as much as you care to...also my leads are 1mm and th

Re: wave solder bridges

Electronics Forum | Thu Jul 27 11:47:15 EDT 2000 | Jason

i've rotated the board with the same result. What are soldertheif pads. I'm new to wave soldering and this is another new one on me. What did you use? where do you put the pads? please explain as much as you care to...also my leads are 1mm and th

Re: Adhesive Stencils

Electronics Forum | Tue Jul 11 11:35:03 EDT 2000 | genglish

John, Dave. The adhesive deposition is on the second pass through the SMT area, the PTH components have previously been fitted during the axial / radial stages of manufacture. The stencil is 2mm thick with a 1.5 mm routing depth. the leads (cut & cl

Re: Wave Solder Land Patterns

Electronics Forum | Wed Jun 28 07:45:39 EDT 2000 | Wolfgang Busko

Hi Allan, I can�t help with literature on that topic but we have great success with solder thiefs to prevent bridging with 2mm pitch THT-connector. We added just blind pads of the same size at the end of each row similar to what you can do with SMD

PQFP with pitch of 0.4 mm

Electronics Forum | Tue Jan 30 21:14:26 EST 2001 | davef

Suggestions are: * Limit pad width to 0.008" [0.2mm] * Use IPC-7525 Stencil Design Guidelines * Avoid Type 4 pastes, if you can * Slow down your print head to 0.63"/sec [16 mm/sec] * Consider the suggestions on printing by rpereira in the past

DoE on post-reflow PCB - warp

Electronics Forum | Wed Jun 26 21:05:15 EDT 2002 | ianchan

Hi Dave F, customer calls it "warp", we can call it "twist/bow"..etc. the "warp" occurs on individual PCB cells of 28per each panel. the overall dimension of the panel is 139mm x 168mm, and each individual PCB cell is 2.4mm x 1.2mm. Thickness is 0.

limitation's of the QSA 30 machines

Electronics Forum | Thu Dec 08 12:06:29 EST 2005 | derengmao

Thank you for the info. I changed the "Light Cntl = 2" into "=1", the system tells "Vision not Init" but the machine works. If change to "= 0" then system tells more problem, and does not work. Do you have better idea about it? For feeder for 040

limitation's of the QSA 30 machines

Electronics Forum | Thu Dec 08 13:05:51 EST 2005 | bobpan

In the scp.ini file you either check light control on or off.....i am not sure where you are putting numbers in at. You can use a slim feeder if it will fit onto your feederbase and if you do....you wont need the 2mm option turned on. What version o

Fighting solder beads

Electronics Forum | Sun Mar 19 16:32:05 EST 2006 | ausajid

hi same sort of broblem v r getting after reflow. i am not sure about the solderbeads how u can reduce, but the other issue u r talking about is apeture blocking.... u can reduce it by reducing the seperation spead. reduce it as low as 1-2mm/sec. th

Can CSM84V and CSM84VZ do 0402 ???

Electronics Forum | Wed Apr 12 15:43:31 EDT 2006 | ted nguyen

Does any one out there know if CSM84V and CSM84VZ can do 0402 parts ? If so, do they actually make 8mmx2mm feeders for these machines. I've had someone tell me they do, but i can't seem to find those feeders anywhere. thank you


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