Electronics Forum | Fri Apr 02 12:41:12 EDT 2010 | CL
Nicolas, 4.1.2.1 and 4.1.2.2 mention the requirements for drying an MSD to resett the clock life. 4.1.2.2 states that once a component is dried, refer to 5.3 for safe storage. Under that specification is 5.3.3.2 DRY Cabinet at 5% RH- This states tha
Electronics Forum | Wed Aug 18 02:17:37 EDT 2010 | tennythomas
I heard that one can create the stacked/staggered microvias in the layers 1-2 & 2-3 and skip microvia in the layer 1-3 of 6 layer stack up, when the prepreg is between layers 1 & 2 and the other prepreg is between the layers 2 & 3. I want to know w
Electronics Forum | Wed Jan 18 06:22:23 EST 2012 | ngineer
I rang out the bases, the connectors are common (i.e from top to bottom, 1-1, 2-2, 3-3,4-4). I also measured voltage on the connectors. Front and back don't have any voltage, and the lights don't come on when I press the buttons. Left and Right ar
Electronics Forum | Thu Apr 01 03:44:31 EDT 2010 | nico67640
Good Morning Nicolas, > > Per J-STD-033B, 5.3.3.2 > states that a Dry cabintet maintained at not > greater than 5% RH may be considered MBB > storage. > > Hope this helps > > Chris Thanks Chris for your answer. I'm ok with you about the per
Electronics Forum | Thu Dec 02 11:14:49 EST 1999 | Dave F
Michela: Here's an outline for you to fill in the blanks: Policy Purpose Applicability Definitions Applicable Documents 1 Justification Of Spending 1.1 Request Preparation 1.2 Request Content 1.2.1 Summary Section 1.2.2 Capital Appropriation Reques
Electronics Forum | Tue May 14 14:48:33 EDT 2002 | fmonette
Hi Dason, Here is some relevant information that you might find useful : J-STD-033, section 7.1.2.2 Dry Box : "Components may be placed in a dry box, capable of maintaining 25+/-5C and less than 10%RH. Nitrogen or dry air may be used." In other w
Electronics Forum | Fri Jan 02 17:47:21 EST 2004 | gpaelmo
Yes, We have done away with masking with kapton 8 yrs ago. As long as the goldfingers are leading edge you can use one of these: 1. rubber goldfinger boot/glove - contact east use to carry them...don't know if they still do. 2. fiberglass glove - ma
Electronics Forum | Tue Feb 07 05:40:16 EST 2006 | pavel_murtishev
Good day, J-STD-033A: 4.1.2.2 Moisture Sensitivity Levels 5-5a For moisture sensitivity Levels 5 and 5a with floor life exposure not greater than 8 hours, a minimum desiccating period of 10X the exposure time is required to dry the SMD packages en
Electronics Forum | Mon Jul 24 20:39:49 EDT 2017 | dawson
We got an inquiry from US that requires high > volume 8 layer 1.0mm PCB, OSP + selective ENIG > surface, 5 groups impedance control, and stacked > vias. These requirements are common, but there is > 2/2mil lines in inner layers. It's said that th
Electronics Forum | Tue Nov 03 16:28:21 EST 1998 | Dave F
| Well my process is I'm running my belt speed at 3.50fpm and about 215 to 225 degrees top side. I got my main wave down to a little less than half the board thickness. I'm not using a hot air knife cause we thought it might create more of a problem
