Electronics Forum | Wed Mar 03 00:20:08 EST 1999 | Clarissa Ortner
We are a small division. We are starting up a leadless line with an old screen printer and a convection oven. At this time we don't intend to get any sort of pick and place assistance and wil be loading by hand. We find the biggest problem with th
Electronics Forum | Mon Apr 17 16:17:47 EDT 2000 | Dennis Fall
Typically, Sn/Pb solders are used to preserve solderability on leaded and leadless SMT components. Are other finishes (such as those used in PCB manufacturing e.g. Sn, NiAu, OSP's, etc.) frowned upon by PCB stuffers and their customers? I am intere
Electronics Forum | Fri Dec 17 18:24:39 EST 1999 | Clarissa L. Ortner
We have a new program that is going to require us to add many leads to presently leadless parts. It isn't preferred by we are up against the wall. We will be doing mostly passive caps, resistors and diodes and some LCC's as well. Is there any one
Electronics Forum | Wed Feb 16 20:51:37 EST 2000 | Jim
We have to place some LCC208's. The terminations are flush with the underside of the package, on an 0.5mm pitch. The pads on the board are flat tin. We'd like to get the part up in the air a little to provide some clearance for cleaning. Is there a w
Electronics Forum | Wed Feb 16 20:51:37 EST 2000 | Jim
We have to place some LCC208's. The terminations are flush with the underside of the package, on an 0.5mm pitch. The pads on the board are flat tin. We'd like to get the part up in the air a little to provide some clearance for cleaning. Is there a w
Electronics Forum | Thu Mar 04 12:44:01 EST 1999 | SMTASSY
Hi, For hand placement you should see about 150-200 ppm of errors (solder, placement, values etc) on a board populated of types such as 1206, 0805, SOT, Tantalum etc. . As for solely wrong components (component at wrong location) you can usualy redu
Electronics Forum | Thu Mar 04 16:40:06 EST 1999 | Dave F
| Hi, | | For hand placement you should see about 150-200 ppm of errors (solder, placement, values etc) on a board populated of types such as 1206, 0805, SOT, Tantalum etc. . As for solely wrong components (component at wrong location) you can usual
Electronics Forum | Thu Mar 04 17:32:23 EST 1999 | SMTASSY
| Mario: Interesting analysis. What does "Hand placement versus wrong component should only ave. 20-30 ppm." mean? Is that a subset of errors? Thanks. Dave F | What I mean Dave is that if you have a good (well actualy a great set-up) with all t
Electronics Forum | Wed Mar 03 13:51:54 EST 1999 | Dave F
| We are a small division. We are starting up a leadless line with an old screen printer and a convection oven. At this time we don't intend to get any sort of pick and place assistance and wil be loading by hand. We find the biggest problem with
Electronics Forum | Fri Mar 05 09:44:49 EST 1999 | Nancy Vandemark
Clarissa, Dave had good suggestions. We load several boards manual at this time. We set our components up in clearly marked bins. The documentation includes a chart with the part number, bin number, reference designator and color code for the par
