Electronics Forum: factor (Page 1 of 95)

Oven Throughput

Electronics Forum | Thu Jul 19 23:52:17 EDT 2001 | Victor

Load Factor = Board Length / (Board Length + Space) (you can get the maximum loading factor from the manufacturer, usually ranges from 0.5 to 0.9) Oven Throughput = (Conveyor Speed x Load Factor) / Length per Board

DPAK land pattern

Electronics Forum | Fri Mar 29 10:51:20 EST 2002 | lsmith

The IPC-EM-782 reads as follows: the adjustment factor is usually intended to increase the Z dimension slightly, but brings the Z maximum up to an even equivalent. Example if Zmax is 2.100mm then you would enter an adjustment factor of .100mm. The ad

what kind of material can pass through smt process?

Electronics Forum | Mon Dec 28 19:07:38 EST 1998 | flag

can some kind of through hole type connector pass through the smt process (with IR technology)???? the temperature factor or material factor?????

External Factors to be controlled during assembly

Electronics Forum | Thu Sep 27 13:11:07 EDT 2001 | Nankar

what factors should be monitored and controlled during assembly of components on PCBs and their storage? Temperature and humidity seem obvious. Should one also watch out for any particular gases that may cause oxidation? Or dust?

Factors affecting solder quality

Electronics Forum | Thu May 26 21:13:17 EDT 2005 | thaqalain

Factors that affect the solder joint quality are *envirinmental condition(i.e.,humidity) *contamination *Flux residues *all of the above

solving tombstone

Electronics Forum | Fri Aug 01 00:22:46 EDT 2008 | fowlerchang

Pattern design, paste volume,printing misalignment, place misalignment,reflow process include N2 usage. All the factor above can make tombstome happen. And the most important factor is placement misalignment except design issue. But pls check the sol

Solder paste process

Electronics Forum | Thu Apr 30 13:09:53 EDT 2009 | scottp

One factor I see missing is separation speed (or snap off speed). I've run experiments with different pastes where it was the biggest factor in standard deviation of print volume for small apertures.

Wave Soldering Flus Selection

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)

Water Quality Requirements to wash boards

Electronics Forum | Thu Apr 18 17:29:00 EDT 2002 | dason_c

The industrial standard is follow the R.O.S.E test as a guideline per J-STD-001 and the limit is 10ug/sq. inch. Different tester with different equivalent factor with the ROSE and you can refer back to the manual, the Zero Ion tester with equivalent

Internal Oven Calibration

Electronics Forum | Sat Feb 11 18:33:36 EST 2006 | KEN

One factor everyone overlooks is that furnace and external T/C wires are (generally) not calibrated. Unless you are sending your wires to a lab for NIST characterization your T/C wires are NOT calibrated. They (new wires)operate within a specifie

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