Electronics Forum | Fri May 21 04:03:46 EDT 1999 | Joe Manzur
John, Were doing an intrusive reflow process on a single sided board, where all the conventional parts are on the "top" of the board. Due to the nature of the board, and the kind of componets on it, we couldn't wave solder it. To keep it contai
Electronics Forum | Wed May 19 11:01:17 EDT 1999 | Vince Whipple
Wes, I have been involved with many customers changing over from an alcohol based no-clean to a VOC-free process. The change-over can be made easier by such things as air movement, convection preheat, "drains" or reliefs in pallets (if used), contr
Electronics Forum | Wed May 19 14:09:29 EDT 1999 | JohnW
Wendy, I've done this before using a machined piece of FR4 material to hold the board (machined like a DEK plate )in place at the press . It ensures that the boards are alway's in the right place and that none of the components are damaged..also sto
Electronics Forum | Wed Jun 30 18:02:53 EDT 1999 | Mark
| What is the best way to re-ball a BGA? Who has the best system for doing it? | To RE-Ball an IC you must re-BALL the IC! The idea of using a stencil to deposit all of the appropriate solder mass can not work. Here is the process (minus the app
Electronics Forum | Wed May 19 17:44:49 EDT 1999 | Vince Whipple
Wes, I have been involved with many customers changing over from an alcohol based no-clean to a VOC-free process. The change-over can be made easier by such things as air movement, convection preheat, "drains" or reliefs in pallets (if used), control
Electronics Forum | Thu May 06 01:37:56 EDT 1999 | Kallol Chakraborty
| I would like to know if someone aleady have problems with Ceramic Capacitors SMD in In-Circuit Test (see below)and how did you solve this problems ? | | PROBLEMS | 1 - Only one kind of capacitor (2n2F), of all capacitors on board, sometimes are o
Electronics Forum | Wed May 05 23:26:29 EDT 1999 | Dean
| OK, my manager read an article on printing glue (aaargghh!)and wants to know why we aren't doing it. We currently use Fuji GLs and GDMs to dispense glue. I've never done it, but have seen it done at NEPCON and other shows. It looks OK, BUT what
Electronics Forum | Thu Apr 29 11:11:28 EDT 1999 | Steve Gregory
| Can anyone in this world produce such small PCB/PWB trace widths? Lots of theory so far, but have not found anyone yet who can do it in practice. Hi Daniel! I attended this years IPC Printed Circuits Expo down in Long Beach, and witnessed a live
Electronics Forum | Thu Apr 29 11:11:51 EDT 1999 | Steve Gregory
| Can anyone in this world produce such small PCB/PWB trace widths? Lots of theory so far, but have not found anyone yet who can do it in practice. Hi Daniel! I attended this years IPC Printed Circuits Expo down in Long Beach, and witnessed a live
Electronics Forum | Thu Apr 29 00:00:50 EDT 1999 | FAC
| | Hi everyone, | | We started our first machine placed shield test today.We will be machine placing shields with in the next two months. I used a Fuji Qp242 today. There were no problems with pickup etc,. just vision errors. I'm sure we will work
