Electronics Forum | Fri Apr 02 11:32:09 EST 1999 | Bob Willis
| Does anybody put QFP's on the backsides of boards? Can they be reflowed without falling off? Do you use adhesive? | Yes you can reflow them upside down either by Double Sided Reflow or by Simultanous Double Sided Reflow. Many Asian companies wav
Electronics Forum | Mon Apr 05 12:36:53 EDT 1999 | Jim Muckle
Jackie: We ran into some pretty ineresting guys at the Nepcon show who specialize in this area. It may be that they have a solution for you. Company name was Zestron, and the guy I spoke with was Andreas. Seemed very knowledgeable, and was very pl
Electronics Forum | Tue Apr 06 17:01:35 EDT 1999 | Bill Wilson
JNJ Industries just came out with some real cool new chemistries for Ultrasonics at Nepcon called Aquasonic. You can contact them for info at 800-554-9994 | dear all: | we use the HCFC,manufactored by 3M,for the ultrasonic stencil cleaner.but it's t
Electronics Forum | Mon Mar 29 22:01:48 EST 1999 | Scott Birnbaum
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? How
Electronics Forum | Tue Mar 30 22:43:36 EST 1999 | dean
| Does anyone know of a contract manufacturing house that can guarantee smt component placement and can verify placement of +/-.015? | | Thanks in advance | Question: mm, inches, or mils? I can do it. However, what is your reliability level? 9
Electronics Forum | Mon Mar 29 04:00:01 EST 1999 | Vinesh Gandhi
Glenn, i am aware of one unique problem with voc free fluxes. since these fluxes have certain amountb of water content they cause sputtering leading to solder balls & voids problems. Regards Vinesh Gandhi | I require some feed back from any one
Electronics Forum | Tue Mar 30 22:19:02 EST 1999 | dean
| Does any have any reports on competive Component PPM levels for world class manufacturers ?? I would also like to get any information on the fault spectrum for component mounting. | | Generally, it is accepted that world class is below 100 DPMO (
Electronics Forum | Thu Mar 25 15:10:45 EST 1999 | Dan Hughes
We make an excellent chem-etch stencil. Our customers have had success printing 16 mil pitch without a problem. This is not an advertisement! When we try to sell our product to new customers, we find more and more people willing to pay more for the
Electronics Forum | Thu Apr 01 15:10:33 EST 1999 | Brian
B: Are you electropolishing your apertures? With a finish of this type you can come close to Laser cut's smoothness. | We make an excellent chem-etch stencil. Our customers have had success printing 16 mil pitch without a problem. This is not an ad
Electronics Forum | Thu Mar 25 12:03:19 EST 1999 | Cunli Jia @ SMTnet
This morning we had to delete two messages that promoted company products and services on this TECHNICAL Forum. Although these messages are useful information, they are in violation of our Forum rule that prohibits unsolicited advertising through a
