Electronics Forum: controllers (Page 8 of 369)

Humidity Control

Electronics Forum | Wed Nov 22 10:28:33 EST 2000 | Victor salazar

We have some humidity issues due to monsoon season in southern Arizona, I am having issues with water soluble solder paste, and moisture sensative IC's. We are trying to maintain a 32% relative humidity for EESD purposes. What is the standard, and w

Re: Moisture ingression on components

Electronics Forum | Thu Apr 13 20:34:58 EDT 2000 | Dave F

I agree with Wolfgang. If you don't control your processes, they will control you ... and they will put you out-of-business, if you let them. Ta. Dave F

Humidity of SMT component storage environment.

Electronics Forum | Mon Jan 22 21:24:33 EST 2001 | edger_w

Hi! Mike My company is using the electric dry box and it can controlled less than 10% within 2.5 hours if we are not going to open the door. In normal working environment and it still can't control around 30%. Is it something that you are looking

Shelf Life Control

Electronics Forum | Thu Feb 08 11:16:01 EST 2001 | kmorris

Nope -- we don't shelf life control roll solder here. Just threw that on the list as a possible. I don't think it would be necessary.

Control the solder paste

Electronics Forum | Mon Jan 10 03:11:11 EST 2000 | Wister

Hi,how to control the solder paste,condition as belows? place at room temp.or put it into refrig.again if the unopened paste has been warmed up 8 hours but it would not been used at once in case of schedule changing.Assuming that this solder paste wi

Controlled impedance

Electronics Forum | Fri Jan 22 18:05:44 EST 1999 | David

Could anyone send me equations to calculate controlled impedance of traces on circuit boards. I am most interested in the buried traces in multi layer boards. Thanks, David - piengr@verinet.com

Process Control (Stencil Printer)

Electronics Forum | Tue Jan 12 13:46:20 EST 1999 | Sanjay Bhatikar

What would be a good metric for process control of a stencil printer? (fully automatic, vision equipped, stendil printer).

Quality control

Electronics Forum | Mon Aug 27 01:48:06 EDT 2001 | apg

Dear Hussman We use automatic machines on mounting PHILIPS and though quality and velocity of their mounting are very good, the girls occupied with quality control can not on 100 % to check quality of the soldering FLIP CHIP and BGA!!! Pavel

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?

Humidity control

Electronics Forum | Wed Nov 07 12:57:54 EST 2001 | jonathan

Paul, You might check out the "McDry" line of humidity control devices. They are marketed through SEIKA Machinery, Inc. Give Hiro a call @ (310) 540-7310 Ext. 125 He has been a real good resorce for SMT solutions. Jonathan


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