Electronics Forum | Tue Apr 06 12:55:01 EDT 1999 | Patrick O'Connor
0603's and 0402's are being damaged by the water wash post reflow. PCA's are 1" X 4" and 2" X 2" approximately. We've adjusted water pressure so that the top-down is higher than the bottom up. The baskets have a .5" mesh spacing. Some baskets h
Electronics Forum | Tue Apr 06 16:09:25 EDT 1999 | Dave F
| Hi, | Somebody know how to calculate the size of pads for different IC's: QFP's, SOIC, SOJ, etc. | | any help is apreciated. | | thanks | | AC | Al: Justin's comments are well taken. Who should know better about pad sizes that the component m
Electronics Forum | Mon Apr 05 07:57:41 EDT 1999 | ADRIANO FERNANDES
| I need help in finding solder paste measuring equipment. | Hi cuch, I have two site where you could to find information about solder paste measuring equipment. The website are: www.cyberoptics.com and www.malcom.org I already worked with solder
Electronics Forum | Mon Apr 05 20:32:57 EDT 1999 | Dean
| | I need help in finding solder paste measuring equipment. | | | Hi cuch, | | I have two site where you could to find information about solder paste measuring equipment. The website are: www.cyberoptics.com and www.malcom.org | I already worked
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
