Electronics Forum | Wed Feb 09 22:08:45 EST 2000 | Dave F
Russ: You've got stop soft-peddling this stuff. This doesn't sound like "poor solderability." It sounds like "no solderability." It also sounds like you�re dead meat. Three places to call: 1 Board supplier to get their suggestions on unsolderab
Electronics Forum | Wed Feb 09 21:45:48 EST 2000 | Dave F
Sal: Hey that customer standing around staring at you sound like fun, yeh right!!! Wolfgang makes good sense, but, in addition, I�d like to drill-down on board fabrication (har har har) a little bit (har har har) more. You say the holes are the cor
Electronics Forum | Fri Jan 12 19:36:36 EST 2001 | Brian W.
Cyberoptics makes a device called a Cybersentry. wonderful machine. Will work in line or off line. I used one in a former company. You program what pads and locations you want, and it can measure volume or height, and give you charts. You can en
Electronics Forum | Wed Jan 03 10:56:46 EST 2001 | Mike Konrad
Hi Dave, Water soluble flux has two opposite attributes. #1: It is the easiest flux to remove. #2: It is the worst flux to leave behind on a board. As for # 1, there are many de-fluxing systems out there that are very capable of removing water
Electronics Forum | Fri Dec 08 11:08:03 EST 2000 | Antonio
Ok fellas, tell me how you'd fix this! I'm having melf connectors that are tombstoning in the wave, NOT the reflow, the wave. I've never seen this before. All other parameters are the same...solder, preheats, placements, the board, building humidi
Electronics Forum | Tue Dec 05 14:51:00 EST 2000 | JAX
Nick, In siemens terms: Fuji has the ability to check "ink spot" which I assume is what you are doing now. The only difference is the vision capabilities between the two machines. You do not have the freedom of siemens type gray scale with Fuji. Yo
Electronics Forum | Tue Dec 05 14:56:16 EST 2000 | JAX
Nick, In siemens terms: Fuji has the ability to check "ink spot" which I assume is what you are doing now. The only difference is the vision capabilities between the two machines. You do not have the freedom of siemens type gray scale with Fuji. Yo
Electronics Forum | Thu Nov 30 04:02:26 EST 2000 | Chris May
Michael, Thanks for your response. More info:- The processes are as follows, Stencil Print (6 thou on DEK 248) Placement on Contact 3AV and Reflow on BTU 4 zone Top & Bottom oven.It is not an In-Line system. Our board technology is mixed but heavi
Electronics Forum | Wed Oct 18 16:33:26 EDT 2000 | Dave F
Mike: An omega meter has very little to do with ion chromatography. * IPC TM-650, 2.3.25B, Detection and Measurement of Ionizable Surface Contaminants is a process control method that washes boards with an isopropanol / water solution and measures
Electronics Forum | Fri Oct 13 05:21:08 EDT 2000 | Robert Steltman
Looking at the original post, it seems that the white residue is formed on the board after wave soldering and becomes evident when it has been left standing for a while. From what I understand, it seems that the solids content of the "no clean" flux
