Full Site - : johnw (Page 10 of 20)

Data-PAQ's Rapid Oven Set-Up (ROS)

Electronics Forum | Wed May 22 05:10:45 EDT 2002 | johnw

Ron, The new ystem is probably the best one I've seen for useability, the who thing can be driven by wizards to guide people through what they need to do. The system has the ability to set alarm's that will basically analyse your result's for you an

Profiling board

Electronics Forum | Thu May 23 12:27:53 EDT 2002 | johnw

yngwie, are you getting a wave from the customer to say it's not your fault you fried the parts? Profiling's one of those things that is a pain to dobut it's one of the most important factors in the assembly processes. I've read and seen instances w

broken boards

Electronics Forum | Wed Jul 24 11:46:58 EDT 2002 | johnw

Claude, your not a manager by any chance are you?... you can't charge them for breaking them. Ok so yes there will be poor handling but if your going to fix the problem you have to look at teh route cause of it and fix that. You should be settign up

Voids in grounding pad of RF PCB

Electronics Forum | Fri Aug 02 12:07:50 EDT 2002 | johnw

Richard, your asking a multi million dollar question that in my own opinion no one can give you the right answer since no one really knows. hence I think the lack of answers to your question....thought there would be more people willing to propose a

Indium No-clean and Inert Reflow oven (N2)

Electronics Forum | Fri Aug 02 12:01:40 EDT 2002 | johnw

interesting, not at all what we were told so yes lot's of contradictions comming from them, I have to say personally I've not beein impressed with there technical service of late, are they getting complacent I ask? it's strange they say it'll cause

Re: PTH Cut Form Equipment

Electronics Forum | Wed Jul 14 19:09:54 EDT 1999 | JohnW

| | | I am examining cut & form PTH component prep equipment to help in our manual PTH insertion process. We need the ability to process both axial & radial with snap-in and stand-off capability. Low volume with the ability to feed bulk, T&R, or Stic

Re: Solder Mask IPC Standard

Electronics Forum | Sun Oct 10 17:40:50 EDT 1999 | JohnW

| | | 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

Re: No-clean stencil apertures

Electronics Forum | Thu Aug 26 04:35:54 EDT 1999 | Wolfgang Busko

| | | Does anyone have any information on stencil aperture/pad ratios for noclean solder paste. In the past I have experienced severe solder ball problems when using the same size apertures from aqueous products as I do with the No-clean products.

Re: 63/37 vs 65/35 solder

Electronics Forum | Tue Jul 27 14:09:51 EDT 1999 | JohnW

| | | We are currently using a 65/35 solder for our wave process but are considering switching to a 63/37 for a substantial cost savings. No one here seems to know why we everused a 65/35 formulation in the first place. | | | I understand 63/37 to be

Re: check feeder cpt tracking on SMT lines

Electronics Forum | Mon Jul 26 03:32:31 EDT 1999 | Jason

| | | Hello, | | | i'm looking for informations about companies which are using system to verify the loadind of a SMT machine by using barcode (on the slot on the machine & on the reel). | | | I'm in charge of the installation of this kind of system


johnw searches for Companies, Equipment, Machines, Suppliers & Information

Selective soldering solutions with Jade soldering machine

Stencil Printing 101 Training Course
2024 Eptac IPC Certification Training Schedule

Training online, at your facility, or at one of our worldwide training centers"
PCB Handling Machine with CE

High Throughput Reflow Oven