Electronics Forum | Fri Apr 21 08:07:10 EDT 2006 | amol_kane
I struggled with the std too, when trying to justify the need for a desiccant cabinet. according to my interpretation: 1. the components are baked at 125 or 150 dec C within 24 hrs of manufacture (this is MET) and sealed in the MBBs at the component
Electronics Forum | Sun May 21 09:38:25 EDT 2006 | davef
Epoxy Removal and IC Delidding [Hardware Hacking: Have Fun While Voiding Your Warranty, Chapter 14] Encapsulation of critical components using epoxy or other adhesives is commonly done to prevent tampering and device access (the microprocessor shown
Electronics Forum | Fri Apr 11 13:52:09 EDT 2008 | mika
Hi everybody, In Sweden It's stipulated by government law and has been for more than 40 years; that if you are working in hazardous areas where your eyes could get hurt in industries like grinding, welding, mining facility etc. etc etc. etc. etc. or
Electronics Forum | Thu Jun 05 07:54:20 EDT 2008 | davef
You're correct, uV costs 1.7X solvent-based silicone. This high purchased material cost is counter balanced by uV requiring lower thickness due to higher solids and that 60 to 80% of a solvent coating is volitile and goes up the pipe between applicat
Electronics Forum | Thu Oct 23 09:49:18 EDT 2008 | davef
We're not sure the specifics that BLT Circuit Services Ltd referenced, but many companies use dross reducing agents in their wave solder pots. Among dross reducing agent suppliers: * Fry [4100 Sixth Ave, Altoona, PA 16602; 814-946-1611 F814-944-8094
Electronics Forum | Thu Aug 19 11:58:12 EDT 2010 | davef
From "Universal Instruments Packaging Specification" ... [snip] Packing Of Populated Boards · These parts require individual separation and protection to prevent electro static discharge and structural damage. They shall be packed in sealed, anti-st
Electronics Forum | Thu Dec 02 09:07:18 EST 2010 | patrickbruneel
Hi Jacki, Water soluble flux was for the majority used in the USA in the 80’s and 90’s under the motto “flux your problems away” (water soluble fluxes are very active). Water soluble fluxes have never been popular in the rest of the world. The main
Electronics Forum | Fri May 22 13:14:42 EDT 1998 | Earl Moon
| | | | Y'all: IPC set-up a site addressing the environmental issues of the printed circuit fabrication industry. Some of it is interesting and applicable to the assembly business as well, even though not aimed directly at assemblers. IPC has rece
Electronics Forum | Mon Mar 29 18:17:48 EST 2004 | kerryn
It should be noted that some of the main reasons to change from manual cleaning to automated stencil cleaning are: � Manual cleaning is not consistent � quality is totally in the operators hands � Contamination left on the stencil and in the aperture
Electronics Forum | Fri Sep 22 16:21:31 EDT 2006 | patrickbruneel
Figure 1. Human Toxicity Potential, Life-cycle Comparison Tin/lead solder paste is the top formula. SAC is second from the bottom.3 RoHS Report Excludes Comparisons By George A. Riley, contributing editor A European Union (EU) Commission for Envir
