Electronics Forum | Wed Dec 06 07:41:48 EST 2000 | John
To the post on the depaneling system. Almost any smt component can (and will according to Murphy's law) be damaged during hand breakout. Our company began using SMT a few years ago, and our primary customer absolutely will not allow us to hand brea
Electronics Forum | Fri Dec 17 13:23:15 EST 1999 | Chris
I have an underfill material which takes 6 hours to cure. It works great, better than any other underfill I have ever used. A vertical cure oven is too expensive. I am currently using batch style ovens and opening the oven door as additional produ
Electronics Forum | Tue Jul 14 20:16:45 EDT 1998 | Wayne Bracy
| Dear Colleagues: Most responses will be individual involvements with either rotors or the old pizza type cutters. Depending upon how your multi-up boards are designed will determine the actual spacing that you have for the singulation process. (r
Electronics Forum | Fri Sep 20 14:23:50 EDT 2002 | larryk
PizzaFred, Scott mentioned lots of good ideas. Take one of your boards to each vendor and see what it takes to program the board how long it takes for it to become online. I've found some that are easy to program, but require 40 or more assemblies to
Electronics Forum | Wed Aug 27 00:45:35 EDT 2003 | kenBliss
Bman Each area and process has a unique machine for a reason. Professional engineers at the various OEM�s have thought these things through and there are specific reasons why you don't wash stencils in a board washer, bake pizzas in your reflow ove
Electronics Forum | Tue Jun 08 17:31:15 EDT 2010 | whitewing
For protos and very short runs I already use a polyester stencil + pizza oven process which is fine except for the placement time and tedium. I'm partly trying to bridge the gap between that and stuff that needs subbing out due to quantity, and partl
Electronics Forum | Mon Jun 13 18:47:56 EDT 2011 | kahrpr
Cracked parts close to the edge on pizza cutters are a common problem. There are a lot of stresses on the board as the blade cuts through the board. Raising the blade height so that the boards are not cut clean through will help. You will have to fi
Electronics Forum | Mon Jun 02 15:03:05 EDT 2014 | clydestrum
Background on the PCB: Thickness: .032" Material: Standard Fr4 V-score: Leaves .016" (approx .008" cuts on either side) We are having some issues on these boards where the edges are delaminating all the way to the copper during de-panel. Now, we are
Electronics Forum | Fri May 04 16:19:52 EDT 2018 | solderingpro
meaning its non-eutectic. You would want to stay as close to 350°C as possible or (if a slightly off version of SAC305) target the highest melting point of your chemistry) - assuming your temp controller is properly calibrated that is. Other option
Electronics Forum | Wed Nov 25 17:21:17 EST 1998 | Michael Allen
A word of caution: thick webs (i.e., shallow score grooves) can result in scrapped boards, especially if you've got the dual-wheel-type score breaking machine. I discovered recently that shallow score grooves, combined with DULL knife-edge guides on
