Electronics Forum | Wed Jan 09 17:14:48 EST 2002 | mregalia
Do you bond with Al or gold wire? What happens if the Ni is over 150 microinches? Thickness of nickel is one those things that we have not been consistent with. The industry seems to pretty much universally call for 100-200 microinches. Our old board
Electronics Forum | Wed Jan 09 18:17:15 EST 2002 | Chris
I don't have a plasma cleaner either. It will help a lot. Actually I don't clean at all. Our wirebond pads are far enough away so the flux residue does not get on the wirebond pads. That's what we think anyway. I am sure we have some degree of c
Electronics Forum | Wed Jan 09 12:20:00 EST 2002 | mregalia
Thanks for cluing me into IPC-2221. Though the numbers they give seem to contradict what I have learned from people working with the materials. At least I now know where the guideline for a max of 30 microinches of gold for soldering comes from. But
Electronics Forum | Wed Jan 09 15:24:49 EST 2002 | mregalia
Thanks Chris. As I was writing my last message our mailperson dropped off the latest issue of Circuit Assembly. It has an article on mixing SMT and COB on the same board. The author recommends as a compromise 10-20 micro inches of gold over 70-100 of
Electronics Forum | Mon Jul 12 21:05:06 EDT 1999 | karlin
Hi, I need some urgent informations on stencil design guidelines on how to perform epoxy printing on 0603 and 0402 components. Could anyone help? ( Reflow process is not possible because of some other constriants) Secondly, I need also facing a lo
Electronics Forum | Tue Apr 16 05:05:32 EDT 2013 | stivais
We recently had a discussion with customer's QM - he claims that calculations for a proper solder wire diameter and soldering iron tip size (and temperature) have to be performed and documented for all manual (T/H) solderings (based on component size
Electronics Forum | Wed Apr 26 09:48:32 EDT 2006 | patrickbruneel
Checkout this link http://www.rohsusa.com/ any comments on this??
Electronics Forum | Thu Feb 04 09:09:07 EST 1999 | dave
Can anyone help me with the pros and cons of trying to wave solder tantalum and large (1812) ceramic capacitors. I do know that one may see fractures on larger cermaic caps, but have not seen much on the tantalums. Any insight as to what problems I c
Electronics Forum | Fri Feb 05 09:39:58 EST 1999 | Dave F
| Can anyone help me with the pros and cons of trying to wave | solder tantalum and large (1812) ceramic capacitors. I do | know that one may see fractures on larger cermaic caps, but have not seen much on the tantalums. Any insight as to what proble
Electronics Forum | Tue Feb 16 16:28:30 EST 1999 | Tuffty
| | Can anyone help me with the pros and cons of trying to wave | | solder tantalum and large (1812) ceramic capacitors. I do | | know that one may see fractures on larger cermaic caps, but have not seen much on the tantalums. Any insight as to what