Electronics Forum: dreamsniper (Page 3 of 6)

Re: Looking for feedback on site performance

Electronics Forum | Thu Sep 02 22:00:35 EDT 1999 | Dreamsniper

To All, Since Tuesday morning (EST) the SMTnet site database has been upgraded from MS Access to MS SQL. This should help reduce download time and improve our ability to handle the increasing site traffic. Have any of you noticed a cha

BGA Via Tenting

Electronics Forum | Fri Dec 17 14:30:42 EST 2004 | Dreamsniper

I goy this issue: Voids in almost every ball of my BGA's prcessed since we changed our BGA via tenting to double tenting. The tenting is done with a dry film application to fill the via from the solder side then apply LPI Mask on the surface of the

BGA Via Tenting

Electronics Forum | Fri Dec 17 14:31:52 EST 2004 | Dreamsniper

I got this issue: Voids in almost every ball of my BGA's processed since we changed our BGA via tenting to double tenting. The tenting is done with a dry film application to fill the via from the solder side then apply LPI Mask on the surface of the

Re: Fine Pitch 48-pin TSOP

Electronics Forum | Fri Dec 01 00:37:20 EST 2000 | arminski...aka..Dreamsniper

I have a proto-type PCB with a 48-Pin Fine Pitch TSOP (0.5mm pitch) with a dimension of 19mm L x 11.50mm W x 1.10 Thickness. They are at the bottomside of the PCB and I need to wave solder the board. There are 8 of them at the bottom side. Are they o

Re: How to convince management on buying Equipment ? ---For Dave F, Wolfgang, Moonman and the rests!!!

Electronics Forum | Wed Sep 27 13:45:35 EDT 2000 | Bill Schreiber

Dear Dreamsniper, A big hidden cost in any cleaning system is the cost of diminished production and rework. I assume you are cleaning the adhesive stencils manually since there is no equipment cost in your formula. Manual cleaning of adhesive sten

Re: Decommissioning or Scrapping PTH/SMT equipment

Electronics Forum | Thu Apr 06 10:10:43 EDT 2000 | Jon Wentz

Dreamsniper, Always remember your ace in the hole when it comes to equipment used in this industry; its complexity! CPK, PPK and various other cost studies are excellent ways to "communicate" to bean counters your situation with the particular mach

Fine Pitch Pad Width Size VS Component Lead Width

Electronics Forum | Wed Apr 11 06:06:53 EDT 2001 | wbu

Hi Dreamsniper, the IPC land design standard is IMO a good reference. If you use the online calculator you can influence the result by varying for example manufactoring parameters. For the same lead width and same tolerances (and of course pitch) we

Re: PCB Component Legend Under SMT Pad/Land

Electronics Forum | Mon Sep 13 04:17:10 EDT 1999 | Earl Moon

I noticed that some of our pcb's component legend/designation are unreadable as they are placed under smt pads. Is this correct and according to standard? Although we don't have any problems with them as of now, I would like to know the effects on

Re: no clean rework

Electronics Forum | Tue Aug 10 05:51:03 EDT 1999 | Gian.D

hello to everybody, we have a really satisfactory no clean process, both smt/reflow and wave soldering, but we get troubles with defects rework; does anybody know how to eliminate flux residues or how not to produce them during rework op

component shelf life

Electronics Forum | Thu Aug 29 18:28:19 EDT 2002 | Dreamsniper

Semi conductor devices last for 5-10 years or more when in use. Since those parts are in stock and are not in use they are considered in good condition. The only concern that you got is how will you process them. We had the same problem before and it


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