Electronics Forum | Thu Mar 13 19:32:19 EDT 2008 | ipdisplays
Thanks all for the advice so far. I'm definitely considering the 4C & the TP9-U. I've also seen a Zeva 575, Philips Eclipse, & Juki 720. These seem to be a little more expensive. Any feedback on these machines - is the extra expense worth it? How e
Electronics Forum | Thu Dec 26 17:13:43 EST 2019 | rgduval
Doesn't really look like no-clean to me...typically, no-clean encapsulates the solder joint after reflow, trapping any organics. This looks like plain-old water soluble flux, that cooked a bit too much in reflow. As you noted, it cleaned up with
Electronics Forum | Fri Mar 19 13:26:19 EST 1999 | Scott Cook
| Hi folks, | | I am looking for inputs on a long-standing problem encountered in our shop: Bottom-side parts (passives) falling off in the Wave...where the only remnants of the part is a flattened glue dot of proper diameter and volume, and somet
Electronics Forum | Wed Mar 18 22:53:53 EST 1998 | Scott McKee
| Cpk's on top flight ovens (e.g., Conceptronics, Heller, Electrovert, Vitronics) vary wildly, from 1 to 2+, between different supplers. The suppliers don't seem to understand Cpk's. A supplier's rep whose oven has a Cpk of 1.0 told me: | 1. Cpk's
Electronics Forum | Fri Jan 16 23:46:38 EST 1998 | Scott
| I have a problem! The solder on my pc boards look great comeing out | of my reflow oven. They go thrue the rest of the prossese | and at the end at the qc station it's cold or whitish or gray not shiny. | does any one have a idea on how to correct
Electronics Forum | Thu Jul 01 00:51:56 EDT 1999 | Scott Cook
| Steve, | | First of all I don't disagree with you, but 104 caps perform a power smoothing function not a data signal function. | | A PCB will still function despite a few dead cap locations. | | It won't function without certain IC lead contact
Electronics Forum | Tue Mar 23 04:07:44 EST 1999 | Scott Davies
Rob, We are also using intrusive reflow to simultaneously process SMT and Thru-hole components. Our arrangement goes as follows: - Screen print solder paste to the single sided PCB using 0.008" laser cut stencil. - Apply adhesive dots to selected
Electronics Forum | Thu Nov 18 00:28:02 EST 1999 | Scott McKee
Use Mydata. I've built huge backplane boards, round boards, 1/4" thick boards, 1"X24" boards, 1"X1" boards, L-shapes boards; all without any carriers or tooling. If you buy a MY15 you can increase the board size to 5'X2' (60"X24")... As for ovens,
Electronics Forum | Tue Aug 24 04:05:15 EDT 1999 | Scott Davies
| Hello everyone, | We found many cylindrical diodes missing during SMT process. Could someone tell us how to prevent this problem? Is it effective to change the shape of stencil apture or reduce fan speed in reflow oven? Thanks in advance. | | Gyve
Electronics Forum | Fri Jun 25 03:16:38 EDT 1999 | Scott Davies
Wayne, Earl, I wish there was some way we could toss our wave solder machine forever! Unfortunately, we haven't found a way yet to do paste-in-hole reflow for large numbers of thru-hole axial and radial components, which we insert on Universal machi
