| ??? 03/05/12 17:23 Read: times |
#186432 - re: Glue Responding to: ???'s previous message |
Per Westermark said:
You often glue the components just to stop them from floating Well, not on any QFN I know of. They all have an "exposed pad" on the bottom that must be soldered. This leaves no room for any amount of glue. A QFN floating away is usually the result of too much solderpaste on the bottom pad. - Rob. |
| Topic | Author | Date |
| Precision32 - SiLabs jumps on Cortex-M3 bandwagon | 01/01/70 00:00 | |
| QFN indicates PLCC, doesn't it? | 01/01/70 00:00 | |
| QFN is "lead-less" | 01/01/70 00:00 | |
| harder to mount | 01/01/70 00:00 | |
| Glue | 01/01/70 00:00 | |
| Glue and reflow? | 01/01/70 00:00 | |
| Cyanoacrylic type glue | 01/01/70 00:00 | |
| Is it used in mass production? | 01/01/70 00:00 | |
| I was wrong about the glue type for manufacture | 01/01/70 00:00 | |
| Nevertheless... | 01/01/70 00:00 | |
| Dispense | 01/01/70 00:00 | |
| Again... | 01/01/70 00:00 | |
| re: Glue | 01/01/70 00:00 | |
| I hope this becomes standardized ... | 01/01/70 00:00 | |
| Eh?? | 01/01/70 00:00 | |
| It seems that the industry's heading for a consensus | 01/01/70 00:00 | |
| PLCCs marked QFN | 01/01/70 00:00 | |
| Anyway, | 01/01/70 00:00 | |
| It doesn't have to be a PITA ... | 01/01/70 00:00 | |
| That's the point! | 01/01/70 00:00 | |
Yes, and your starting point matters a great deal | 01/01/70 00:00 |