Electronics Forum | Sun Jan 24 06:44:31 EST 1999 | Kallol Chakraborty
| | Could anyone send me equations to calculate controlled impedance of traces on circuit boards. I am most interested in the buried traces in multi layer boards. | | | | Thanks, | | David - piengr@verinet.com | | | As one of the first MLB impedan
Electronics Forum | Fri Jan 22 14:24:44 EST 1999 | Dave F
| I was just wondering what solutions are out there for dry storage. Our basic need is to be able to store boards that have been baked and need to remain moisture free for up to a week. | Michael: Let's take a different angle on this. Why not ha
Electronics Forum | Fri Jan 22 17:38:07 EST 1999 | Michael Larsen
| | I was just wondering what solutions are out there for dry storage. Our basic need is to be able to store boards that have been baked and need to remain moisture free for up to a week. | | | Michael: Let's take a different angle on this. Why
Electronics Forum | Fri Jan 29 15:52:54 EST 1999 | Sarah Marshall
| I've had good luck with cabinets sold by Stanley Storage Systems (800-523-2449). This is a sturdy, steel cabinet (no windows) that is intended for nitrogen purge. It's less expensive than the specialty acrylic cabinets sold by other companies. W
Electronics Forum | Fri Jan 29 16:11:29 EST 1999 | Charles L. Morehouse
|I aggree with Sarah, I have found that Stanley sells a good configurable product for the money. | I've had good luck with cabinets sold by Stanley Storage Systems (800-523-2449). This is a sturdy, steel cabinet (no windows) that is intended for
Electronics Forum | Fri Jan 22 14:31:14 EST 1999 | Dave F
| I have boards coated with Humiseal 1B73. At a late point mfg. site we need to remove a series of 0603 resistors for optioning purposes. I have been trying to determine the fastest, easiest way to re-coat the pads after removal. Drying time of the c
Electronics Forum | Sat Jan 23 07:08:54 EST 1999 | Graham Naisbitt
| I have boards coated with Humiseal 1B73. At a late point mfg. site we need to remove a series of 0603 resistors for optioning purposes. I have been trying to determine the fastest, easiest way to re-coat the pads after removal. Drying time of the c
Electronics Forum | Fri Jan 22 18:54:54 EST 1999 | Steve Gregory
> If you are inheriting a system, you probably don't have a lot of choice, >>but with a little ingenuity, you can pull a Steve Gregory: Grab some duct >>tape, a book of matches, and a videotaped rerun of MacGyver for >>inspiration. HEY! Whaddya mea
Electronics Forum | Thu Jan 21 15:24:18 EST 1999 | Terry Burnette
| I have received prototype PBGA (256 pins) devices from | Motorola (actual part number = KXPC850ZT50). These parts seemed very warped on the edges. When I put the part on a plain surface, it rocks quite a bit when I press lightly on a corner. I h
Electronics Forum | Thu Jan 21 10:08:07 EST 1999 | Dave F
| Need to know from your experience a set of smt equipment for low volume manufacturing (approx. 800K parts/yr). Types to handle are standards i.e., 0404-7343, soic's, plcc's, pqfp, tsop, soj, BGA, chip res. smt conn. | I would like to know a recomm