Electronics Forum | Thu May 17 12:59:09 EDT 2001 | rwilliams
I would like to know peoples' thoughts on measuring solder paste height. I am having difficulty fully understanding its value. Is it better suited to a production environment, or more of a lab environment? Our screen printers are not fitted with on-
Electronics Forum | Thu Jul 19 08:04:04 EDT 2001 | dahsr
I have a sealed and refridgerated 350g jar of solder paste (water soluable flux). According to the label it expired July 1st. 2001 after the 6 month shelf life. Can this be used? Why or why not? What is the relevance of the expiration date? Can I re-
Electronics Forum | Tue Jan 25 20:19:24 EST 2000 | Charley Qin
Hi, Mark Acturally, solder paste viscosity reading is very closely related to eviroment such as temperature and relative humidity. So I'm afraid it is hard to tell the diffrence between measurements without enviroment control. Regarding to LSM, we'v
Electronics Forum | Sat Aug 07 03:38:34 EDT 1999 | JAX
| | Hello, | | I am currently looking for a solder paste height inspection system (preferably one that will go in-line). | | Can anyone reccommend any? | | Thanks | Steve | Steve, Cybersentry makes an easy to program model that can be
Electronics Forum | Wed Jul 28 22:06:17 EDT 1999 | Dave F
| Looking for solder paste specification limits which have reliability data to support them. Currently, we are looking to define the min/max volume necessary to ensure a good joint on CBGA, PBGA, and Micro-BGA's. Any information will be greatly app
Electronics Forum | Wed Dec 31 23:11:07 EST 1997 | Scott McKee
| I require a Template for an internal | Solder Paste Stencil Specification. | If any one has ANYTHING, could you please reply. | Graham My suggestion would be to contact your stencil manufacturers. They've seen it all and know more than most... Ask
Electronics Forum | Tue Jan 06 10:33:50 EST 1998 | Paul R. Graham
| | I require a Template for an internal | | Solder Paste Stencil Specification. | | If any one has ANYTHING, could you please reply. | | Graham | My suggestion would be to contact your stencil manufacturers. | They've seen it all and know more than
Electronics Forum | Mon Oct 29 11:39:09 EST 2001 | Stefan Witte
If you are doing this in a high volume, you could concider using a pin transfer method. Apply solder paste first. Have a plate made with retractable pins in the location you want to have the adhesive dots. Dip the pins into a lake of adhesive. Align
Electronics Forum | Fri Dec 07 11:46:28 EST 2001 | Brian W
Before changing solder pastes or jumping through too many hoops, check the melting point of the 100 Sn (pure tin) connection. According to Kester, the melting point of 100Sn solder paste is 232 degrees C. If you do not reach that temperature, you wi
Electronics Forum | Wed May 01 22:20:02 EDT 2002 | saiwong
We can't affort the new QP132. It costs more than a million bucks each plus power feeders. We can only buy from the used markets. CP7's X-Y Table is moving too fast. They need special solder paste. Very expensive solder paste to hold the components.