Electronics Forum | Mon Dec 18 14:49:23 EST 2000 | Charles Harper
Probably the most important recent event has been the acquisition of International Flexible Technologies by Scheldahl,whose strength in flexible materials will have a major growth impact for flexible circuits--already growing nicely.Also,continuing a
Electronics Forum | Thu Oct 26 16:38:08 EDT 2000 | Philip A. Reyes
Hi Sir Charles! Good Day! I hope you can help me about my queries. 1. What is the acceptable misregistration or misalignment of balls after reflow soldering of PBGA module on the PCB? 2. Is there any criteria for solder ball defect or solder beads
Electronics Forum | Mon May 14 08:41:11 EDT 2001 | jackofalltrades
Howdy, This subject may be a little off subject, but I have been looking for a source that can give me info for the recommended torque on hardware. What I would love to see, is a chart that can show me, for example a column for the screw size (SAE &
Electronics Forum | Mon May 21 21:31:08 EDT 2001 | Dean
I would like to hear from all Philips Sapphire users about your successes and failures when placing 0402 parts. 1. Are you using type 51 / 57 nozzles? 2. Special vacuum check? 3. How are you calibrating your vacuum sensors? 4. Have you expe
Electronics Forum | Wed Jun 13 16:20:33 EDT 2001 | Gregory Stanton
Does anyone know of a quick method for developing reflow profiles for a Conceptronics HVA 102 reflow oven? Our plant is exceptionally busy and it's difficult to get access to the machine. I've been told by a few folks the oven has enough zones (7)
Electronics Forum | Thu Jun 14 22:50:45 EDT 2001 | gregH
Hi, I read an article that says "Flux selection usually depends on the following factors": a) Solderability of pcb base metal or coating b) Corrosivity of vapours and residues c) electrical resistivity of residues d) Ease of removal of residues e)
Electronics Forum | Thu Jun 21 02:43:24 EDT 2001 | Armin
is it easy to program ? e) User friendliness. Is the equipment easy to operate ? f) Tact Time. g) 2nd Hand Market Cost of the equipment. Rough guesstimate will do. I got feedback that noone service this machine anymore. Is it true? and that parts a
Electronics Forum | Thu Jun 21 07:06:18 EDT 2001 | gdstanton
I'm constantly being flooded with information by sales reps on x-ray and other types of equipment to inspect BGAs. Most of these items are simply beyond our capital budget constraints. I've witnessed dozens of demos, and to be honest, I really don'
Electronics Forum | Tue Jun 26 12:39:08 EDT 2001 | danial
Our mother company shipped to us a lot of old datecode material and upon running them in the line we experienced non-wetting condition, esplly on the 0402 ( not tombstone ) We have run a dip-and-look test but I guess the method is very subjective as
Electronics Forum | Thu Jul 05 06:36:14 EDT 2001 | nifhail
Thanx Dave, I agree with you on the planning part...yapp!! the same guy who've thrown an old datecode components to me..now they did it again on the PCB. Well Dave, could you explain a little bit more about the "hi-test flux" that you mentioned ab