Electronics Forum | Tue Apr 06 18:10:08 EDT 1999 | Jeff Cealey
| I know there is a way to zero an IP3 with out reboot the whole machine. From page zero hold down F6 and something else. This would really come in handy. If you know how, could you please let me know. Thanks in advance... | | Larry J | Larry,
Electronics Forum | Fri Apr 02 22:01:19 EST 1999 | Dean
| Anyone knows what is the optimum squeegee angle for screen printers. | | 45 Degrees. The forward velocity creates a downward pressure equal to the vector pressure (equalibrium). This is commonly known as paste "rolling action". Too obtuse an an
Electronics Forum | Tue Apr 06 10:30:48 EDT 1999 | Scott Davies
Tony Although I agree in principle with Dean that 45 Degrees would be ideal, most of the squeegees I have worked with have been 60 Degrees to the stencil surface. This seems to work best with metal squeegees when printing HASL boards, because the sl
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 (
