Electronics Forum | Tue Sep 11 19:04:28 EDT 2007 | hakerem
Hi Shrek - Not sure why you think adjusting dwell time and preheats is a sales pitch, but I do appreciate your candor. These are proven, widely used techniques for attacking, eliminating and preventing the recurrence of blowholes. Since it is so ea
Electronics Forum | Mon Nov 12 09:37:17 EST 2007 | russ
You need to perform process a capability study prior to putting these controls into place. Cleaning a stencil after each pass will get ugly, solvent residues remaining in apertures etc. 2D inspection is good. Change paste every hour will get very
Electronics Forum | Mon Nov 19 15:21:44 EST 2007 | wayne123
I was not trying to imply that you didn't know how to run these machines I was simply saying that alot of problems that people may encounter can be solved with operating them correctly, I am sorry if you took offense to this, I too have performed all
Electronics Forum | Sat Nov 17 18:29:02 EST 2007 | bbarton
Let's face it guys...in most cases (stress the MOST!) a typical FR4 board will do the job. Few layers, low copper, not too densly populated etc...no worries. Use a reflow profile which avoids the 245-250C range, use a shorter TAL, Viola you have a go
Electronics Forum | Mon Dec 17 11:55:08 EST 2007 | chef
I recently had the same problems, solder bridges on every thing I made, different customers boards, etc. I wave with no-clean flux. As I sorted out problems (pin holes, blow holes, splatter, etc.) I found a lot of variable factors. I changed flux,
Electronics Forum | Wed Dec 19 22:32:03 EST 2007 | davef
Nerdyboy don't write no blanking program. Get two extra carriers of the same size and configuration as the low temperature carrier that you want bake at a higher temperature. One of the these extra carriers needs to be high temperature material that
Electronics Forum | Fri Apr 04 08:49:45 EDT 2008 | ck_the_flip
Define "expired" though... 1 week? 6 weeks? 1 month? 6 months? Unrefrigerated life is generally 30 days. If paste has been stored refrigerated at manufacturer recommended temperatures, what would you guys do, like say, if you owned your own shop
Electronics Forum | Thu Jun 05 20:20:30 EDT 2008 | mika
Of course this should never occur, but this, forgive me shitty worlds of a complex Flexa system, which makes me cry once in a while. Does anybody here at this forum know what it takes to install this shit? First You have to set up a dedicated Flexa
Electronics Forum | Thu Jul 03 10:24:54 EDT 2008 | grayman
Hello WaveMaster Larry, I think you are very well knowledgeable in wave machine or process. However, I think the reason why your former company won�t listen to you is because you also never listen to your people. I think you overlooked the saying �N
Electronics Forum | Thu Sep 04 13:03:05 EDT 2008 | realchunks
Some use small cleaners but I have always used the stencil washer. Most stencil washers come with a basket of some kind of board holder (or via holder - depending on how technical you want to get). Buying a stencil cleaner is hard to justify just f
