Electronics Forum | Thu Nov 30 21:45:44 EST 2000 | Dave F
It's unlikely that anyone other than the biggest of whooses would think of 0.031" a fine pitch. I prefer 0.025" on tape with solder plated copper leads make in a shape that bears-up well after being driven over by a Mack truck, yet is compliant enou
Electronics Forum | Tue Nov 28 21:07:44 EST 2000 | Alvin K
Gold is porous and spots on gold plated PCBs is one of the drawbacks of using gold as a solderability protector. Base Nickel exposure seems to be the cause of this and is aggravated when the gold thickness is less than what it should be. I agree with
Electronics Forum | Sat Nov 11 10:20:10 EST 2000 | JAX
Have you tried running a glass plate? If you still need to adjust placement it is a machine issue.( calibration ) If everything is good your conversion software needs looked at. That's all I have without knowing the CAD software and Machines
Electronics Forum | Wed Oct 18 09:44:38 EDT 2000 | mike weekes
we're considering PWB finishes other than HASL - the uneven plating contributed to defects and the residues exceed our goal for PWB cleanliness. What success have any of you had with CuOSP, Immersion Silver, Gold or other finishes? Did you have to
Electronics Forum | Wed Jul 12 16:33:39 EDT 2000 | Mark Charlton
We just went through a difficult time processing SMT immersion white tins PCA's and found the following: 1. FAB vendor had a degraded tin solution resulting in improper plating thickness 2. FAB vendor was not using the proper cleaning process Get
Electronics Forum | Tue Jun 27 11:16:33 EDT 2000 | Christopher Lampron
Hello Bill, Ioan's idea's are good. One more thing that you may want to consider is using a "Home Plate" aperture on your stencil for the aforementioned caps. The idea is to put a smaller amount of solder paste directly underneath the component. This
Electronics Forum | Thu Apr 27 04:41:48 EDT 2000 | Scott Davies
Our R&D people are looking at the possibility of "Silver Through Hole" as an alternative to "Plated Through Hole" for our future PCB specification. Do any of you have any experience of this, advantages/disadvantages, etc. I'm told that the main reaso
Electronics Forum | Fri Apr 21 12:43:51 EDT 2000 | David
We are going to hand place through hole connectors by screening them top side in a double sided reflow board. I saw this done before sucessfully on a daily basis but is there anyone with a paper or specs as to what aperture size, any special pad cons
Electronics Forum | Thu Apr 13 07:30:09 EDT 2000 | Christopher Lampron
I agree with Nick. You should check with the manufacturer to determine what type of plating is used on the components and see if the manufacturer has any recomendations on materials that may help. If no exotic materials are used, the culprit is most
Electronics Forum | Tue Apr 11 05:59:54 EDT 2000 | Donnie DeYoung
I'm needing some info in regards to the usage of a Wave Rider. What is it basically used for? I have to implement one into our process and I'm trying to find out what some others use it for. This is going to take the place of our Slim Kic and glass p
