Electronics Forum | Fri Oct 08 18:26:19 EDT 1999 | Dave F
| | Is there an IPC Standard stating the max. number of times that a PCB can pass through a reflow or wavesolder machine without having solder mask breakdown. | | | | PCB is FR4 | | Solder Mask is LPI | | Reflow and W/S Profile = Standard | | | | t
Electronics Forum | Thu Sep 23 10:20:58 EDT 1999 | Earl Moon
| Question for you SMT guru's out there. | | What is the best way to support boards on Fuji's CP6 machine's x-y table...particularly for 2nd side SMT where the support side already has parts... I am toying around with the following methods: | | 1.
Electronics Forum | Tue Sep 21 12:57:01 EDT 1999 | Chris McDonald
| | | I like to see if anyone has any info or experinces with metal inspection templates in a post oven process. | | | My problem issue is the ESD, since they are metal(12 mil stencil material). I welcome any comment. | | | | | | Thank you. | | | |
Electronics Forum | Tue Aug 24 15:06:06 EDT 1999 | John Thorup
| | I am looking for a source of tooling pins (various diameters) which can be easily attached (ie. taped) to pieces of FR-4 stock to allow for quick and cheap fixtures to run in my smt machines. I've seen these in the past where the pins are attach
Electronics Forum | Mon Aug 23 14:13:23 EDT 1999 | C.K.
SMTnetters: Does anyone know of a place where I can have some test boards made? I don't need a board with a working circuit, traces or anything like that, but a board similar to those "test boards" that you all see at the Placement Equipment manufa
Electronics Forum | Fri Jul 30 14:53:01 EDT 1999 | Tom B.
Hello Netters, I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are tinned on exposed
Electronics Forum | Fri Jul 30 17:16:59 EDT 1999 | Dave F
| Hello Netters, | | I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are tinned on e
Electronics Forum | Fri Jul 30 17:24:24 EDT 1999 | Dave F
| | Hello Netters, | | | | I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are tinne
Electronics Forum | Mon Jul 26 12:55:34 EDT 1999 | M.L
Presently protos of micro-bgas (80i/o) pitch .030/.031 12BGA per assembly The board is a (.062, 4 layers) FR-4 using Dry film Pads .014inch Vias within footprint .020inch Vias to be filled by bottom side(solder side) only .030in dia. Force via plugg
Electronics Forum | Wed Apr 21 12:03:59 EDT 1999 | Michael N.
I'm having problems with trying to get a good solder joint using a Ceramic PCB. We are using AMTECH hi-temp solder (ws-486 96.5/3.5ag). My profile looks great and I used the recommended profile from Amtech with a few adjustments. My max temp is about
