Electronics Forum | Mon Apr 12 13:46:32 EDT 1999 | M Cox
| Hey guys, | We are opening our new shop in a hotel and would like to hear your inputs. We will be providing contract manufacturing as well as equipment sales from this location. It will be mostly for the surface mount side of our business
Electronics Forum | Tue Apr 06 09:50:58 EDT 1999 | Justin Medernach
| Does anybody put QFP's on the backsides of boards? Can they be reflowed without falling off? Do you use adhesive? | I use a double sided reflow process all day, everyday. I've hung QFP240s with embedded heat sinks and they don't fall off. Yei
Electronics Forum | Thu Apr 01 14:22:12 EST 1999 | Jim Boudia
| Can anyone give me information about a NCC8 (?) head for the Universal GSM's. Thats the one w/ four spindles and onboard vision (not flex jet however). Are there any maintenance issues with this style head? Is the onboard camera system accurate? Ho
Electronics Forum | Sun Mar 21 06:27:45 EST 1999 | Bob Willis
| Hi Folks, | This is my first surface mount board, so I asked our assembly house for some tips. They said only passives on the bottom side-preferably no smaller than 0805, 0603 only if I have to. I would think that an SOT-23 would be OK on the botto
Electronics Forum | Wed Mar 17 19:58:00 EST 1999 | Marc Ruggiero
Hi folks, I am looking for inputs on a long-standing problem encountered in our shop: Bottom-side parts (passives) falling off in the Wave...where the only remnants of the part is a flattened glue dot of proper diameter and volume, and sometimes f
Electronics Forum | Mon Mar 15 16:01:06 EST 1999 | Earl Moon
| Does anyone have any recommendations on spray fluxers? Are there major differences between the high priced ultrasonic machines to the low priced flux/air spraying machines? We are going to be spraying an OA flux with 11% solids content. Are there a
Electronics Forum | Tue Mar 30 02:32:42 EST 1999 | Scott Davies
We have carried out some experimental work, in conjunction with DEK. Instead of dispensing adhesive for SMD components onto the bottom side of on of our PCBs, we have looked at the possibility of screen printing the adhesive. Because, at the stage of
Electronics Forum | Tue Mar 09 10:05:23 EST 1999 | SMTASSY
Regarding a Fristch semi (using tube feeders on the left side and 200 bins on a rotary belt. From working with one about 3 years ago, we found that we had an average of 240 components per hour placed versus 320 without. The difference being that you
Electronics Forum | Mon Mar 01 11:03:51 EST 1999 | Dennis Xiong
Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o
Electronics Forum | Mon Mar 01 11:03:22 EST 1999 | Dennis Xiong
Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o
