Electronics Forum | Thu Jul 15 12:26:56 EDT 1999 | Earl Moon
| We have been encountering diminishing ball shear readings these past few weeks, despite the fact that we did not change any ball shear tester parameter. Our reflow parameters are also within spec limits. ( 210-220 deg C max temp. and 40-60 sec dwe
Electronics Forum | Wed Jul 14 19:15:59 EDT 1999 | JohnW
| Can plcc's be glue on the a board if not why? | Ron, The biggest problem you have with PLCC's is the hieght of the base of the component from the board, if you can get a glue dot high enough then yes you could do it. Probably the best method is d
Electronics Forum | Fri Jul 16 14:02:03 EDT 1999 | Timothy O'Neill
| Earl, | | Srt makes a system called the summit 2100D. Its a relatively new product but it is designed for rework applications. The programming is simple and interfaces well with other srt products. As with any dispensing system, you have to cl
Electronics Forum | Tue Jul 06 12:46:27 EDT 1999 | John Thorup
| | We are looking for some subcontractors to do surface mount | | technology boards for us. Is there anything I should pay specific | | attention when I visit the subcontractor's site? | | Thank you for any advice | | | Wolfgang has a good poi
Electronics Forum | Sat Jul 10 00:57:17 EDT 1999 | Scott
| who can tell me how viscosity measurements are really effective in smt process control? what can I monitor? Is it depending from fine pitch size? | Thanks a lot. | g. d'andrea | The last place I worked used a viscosity meter, funny how little was
Electronics Forum | Mon Jul 05 18:45:01 EDT 1999 | JohnW
| Is the no clean solder paste as good? We are wondering if we can elliminate the wash when we change from through hole to surface mount. | John, No clean is as good as your process, and the paste you are using. Everything I do is no clean and I h
Electronics Forum | Tue Jun 29 18:35:59 EDT 1999 | JohnW
| | Could somebody tell me what means Leaching, ie: "Leaching of terminal end face exposing the ceramic"? | | | Roberto: Leaching, according to the SMTnet Library of Terms: | | Leaching. Dissolution of a metal coating into liquid solder. Nickel ba
Electronics Forum | Sun Jun 20 16:45:48 EDT 1999 | Chrys Shea
I dug through my big box of office crap and found the disk with my technical papers. I posted the one on process control in the SMTNet library. It covers a lot of ground on what causes defects in the wave (too much or too little of something), and
Electronics Forum | Mon Jun 21 12:08:17 EDT 1999 | C.K.
| I dug through my big box of office crap and found the disk with my technical papers. I posted the one on process control in the SMTNet library. It covers a lot of ground on what causes defects in the wave (too much or too little of something), an
Electronics Forum | Mon Jun 21 15:27:00 EDT 1999 | Tony
| I dug through my big box of office crap and found the disk with my technical papers. I posted the one on process control in the SMTNet library. It covers a lot of ground on what causes defects in the wave (too much or too little of something), an
