Electronics Forum | Fri Oct 11 05:49:16 EDT 2002 | jason
Hi, Recently I am given a task to perform a drop test on a cardboard tote box. Inside is 180 pcs of assembled PCBA with cardboard dividers. But it was unable to withstand the drop test and thus the some of the boards are damaged. Does anyone ha
Electronics Forum | Fri Oct 18 22:19:41 EDT 2002 | mdm4ua
I have three Mydata machines and I am very happy with them. The machines are easy to program as well as operate. They are not as fast as some of the other machines but if you change assemblies often you will likely make up some time in setup and cha
Electronics Forum | Tue Oct 15 13:40:23 EDT 2002 | greenman
I'm currently trying to get a feel for what oxygen level I will need in my lead-free assembly process. Do I need to go with the pure vaporized liquid nitrogen, or can I get away with one of the other "on-demand" operations? All assistance gratefully
Electronics Forum | Tue Oct 22 09:43:29 EDT 2002 | jrloudenjr
I am an EMS provider building mixed technology assemblies. We are currently using Universal Multi Mod and VCD machines for our auotomated thru-hole. These are the 20 year old technology machines and I am investigating alternative pieces of equipmen
Electronics Forum | Thu Oct 24 09:22:32 EDT 2002 | dscott
We are a supplier building prototypes. Most of our projects consist of boards with array packages down to 30 mil pitch. My concern is with customers that return boards for rework on array packages. Typically if their product is not functioning that i
Electronics Forum | Mon Nov 04 14:45:01 EST 2002 | erikb
As a rule handling PCB's with bare hands is acceptable provided that there is sufficient esd protection as well. It is a good rule of thumb however to provide your inspectors or assembly people with finger cots or cotton gloves to keep the product cl
Electronics Forum | Tue Nov 05 10:15:01 EST 2002 | dason_c
We are using the custom pnuematic press to press the heat sink. You can use a force gauge to check the pnuematic cylinder or you can caluclate the force by the size of the cylinder, PI * squ R * Input pressure. Depend on the attachment method, by a
Electronics Forum | Wed Nov 06 19:59:39 EST 2002 | davef
Consider checking with your CC materials supplier for suggestions. It's to their benefit to help you do a good job using their product. Regardless of your current requirements, consider basing your workmanship on NASA-STD-8739.1 Workmanship Standar
Electronics Forum | Tue Nov 12 13:23:21 EST 2002 | Sergio Vito
Hello Sirs, I would really appreciate if somebody could help me to understand how these elements of cost bellow can affect the total cost of an SMT facility. I am studying these numbers for benchmarking purposes. 1) Equipment amortization 2) Maint
Electronics Forum | Wed Nov 20 16:40:32 EST 2002 | csimfgeng
Sign makers utilize a material called "Scotch-Cal" and "Scotch-Brite" in making decals used in outdoor environments. Material similar to this comes in metallic silver and gold. Pieces of this can be economically die-cut and affixed to your PC Board
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