Electronics Forum | Thu Dec 09 10:40:45 EST 2010 | grahamcooper22
MSL 3 means you can have the devices open for a maximum of 168 hours in an atmosphere of less then or equal to 30 C and 60% RH. If the humidity is less then 60% then it means the devices will absorb less moisture in a given time, but even at 40% RH y
Electronics Forum | Thu Sep 29 10:21:11 EDT 2011 | davef
1. Floor loading requirement - The designer of your factory building specified the flooring with a certain floor loading capability. You need to determine that capability. You plan to install machines and equipment. You need to determine the weight o
Electronics Forum | Fri Nov 24 07:28:01 EST 2000 | Chris May
Victor, I am wondering why you are keeping the RH as low as 32% ?? The lower you go, the higher your ESD problems will be. The voltages generated at about 40% are roughly halved when you reach 55% I believe that an acceptable level is about 55%-65
Electronics Forum | Sat Jul 21 08:45:10 EDT 2001 | davef
In the past, we have spoken [typed?] about controlling the temperature and humidity of our plants. And it's probably good to do that from solder process control, ESD danger reduction, and human factors stand-points. We are looking to lower our ener
Electronics Forum | Thu Oct 01 16:46:50 EDT 1998 | Dave F
We are trying to eliminate/minimize the baking process for high lead-count ICs. We would like to reseal packages containing these parts to minimize exposure to humidity. Anyone have or know of a way to reseal or vacuum pack parts? Any suggested eq
Electronics Forum | Fri Mar 24 17:07:39 EST 2000 | John Thorup
Hello Ashok If you are talking about the thousands of volts that is often generated by either simply unrolling the tape to apply or when it is removed from the board after soldering you don't have a lot of choice since it is an insulator. Ionization
Electronics Forum | Fri Dec 13 10:23:55 EST 2002 | davef
Bright ideas??? Bright ideas!!! I got bright ideas. In order of decreasing luminosity: * Stop installing the socket, solder the PLCC to the board, dip the board. The socket is a waste of time and money. You never replace the PLCC in the field, a
Electronics Forum | Fri Oct 02 16:49:33 EDT 1998 | Dave F
Benji: I tend to agree with you that assemblers shouldn't wear make-up. I'm unsure what first level assemblers are tho. I've been down that finger cot/glove route ... 1 If someone is going to smear facial or cosmetic oil on a board, they can do
Electronics Forum | Wed Jun 10 23:26:09 EDT 1998 | Steve Gregory
| We use them, but we never thought about them. | WHAT ARE THEY? The hand lotion we provide for our operators. | BACKGROUND: Operators hands take a beating. They | 1 Work in a humidity controlled 35 to 50%RH environment that is drying | 2 Wash b
Electronics Forum | Thu Jun 11 09:09:12 EDT 1998 | Dave F
| | | We use them, but we never thought about them. | | WHAT ARE THEY? The hand lotion we provide for our operators. | | BACKGROUND: Operators hands take a beating. They | | 1 Work in a humidity controlled 35 to 50%RH environment that is drying
