Electronics Forum | Thu Aug 06 13:02:11 EDT 1998 | Brian Stumm
Tombstoning is often caused by non-uniform heating. I suggest you check you profile to ensure you still have uniform heating and also check your rise and cool rates. If you have a convection oven I would look into the fan speeds or airflow rate throu
Electronics Forum | Thu Aug 06 12:16:52 EDT 1998 | Rin
| I'm currently running a double sided paste smt board loaded with 0603's, on the secondary side. Many of the 0603 devices tombstone during reflow if the parts are not perfectly centered on the pads. Is this caused by the .008 foil thickness? Has any
Electronics Forum | Thu Aug 06 10:30:41 EDT 1998 | Mike
| | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and t
Electronics Forum | Mon Aug 24 07:16:52 EDT 1998 | Paul Horan
| | | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and
Electronics Forum | Mon Aug 24 07:12:20 EDT 1998 | Paul Horan
| | | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and
Electronics Forum | Fri Aug 07 02:32:09 EDT 1998 | P.L. Sorenson - Technical Consultant
| | | I am looking for advice or information from anyone about the possible reliability problems associated with epoxy on solder pads of discrete devices. Will the epoxy expand and lift over time, Will there be adverse reaction between the solder and
Electronics Forum | Tue Aug 04 12:32:13 EDT 1998 | Bob Willis
The design rules for solder thiefs are that the extra pads must be bigger than the proceeding pads to be worth while as a minimum guide the pad is 3x the size of the proceeding pad so if the pad is 0.030" the thief would be 0.090" wide. As steve has
Electronics Forum | Thu Aug 06 11:02:18 EDT 1998 | Jim Price
| | Dew: | | Is this the third or forth software alignment for Fuji? Hope they stick with Unicam for a period of time... | | Just my two cents.... | I believe it's the forth, MCS OS/9, MCXE,F4G, and now fujicam...were there any others I missed? | Pe
Electronics Forum | Mon Aug 31 10:28:11 EDT 1998 | Patrick O'Connor
| | | | Dew: | | | Is this the third or forth software alignment for Fuji? Hope they stick with Unicam for a period of time... | | | Just my two cents.... | | I believe it's the forth, MCS OS/9, MCXE,F4G, and now fujicam...were there any others I m
Electronics Forum | Mon Aug 03 22:00:50 EDT 1998 | Dave F
| I have some potential unused SMT equipment which may be candidates for sale. Any input regarding the value or expected going rate would be appreciated. | CONDITION: | E - Excellent Condition | F - Fair Condition | G - Good Condition | Equipment Li
