Electronics Forum: storing and solder and paste

Altitude and solder voids

Electronics Forum | Thu Nov 01 10:57:34 EDT 2012 | kris1128

Has anyone heard whether the elevation of a plant can effect solder joint formation? One plant at sea level, one at 7,000 feet elevation... same equipment and profiles, big voiding defects at higher elevation. I did a search and found no similar post

DIP insertion and Axial insertion old equipment poka yoke

Electronics Forum | Fri Jan 31 13:45:49 EST 2020 | slthomas

We had a custom bar code storage and feeder setup. Stores material handlers would bring the parts to the line, scan the part number on the kanban card (always accompanied the parts), and the storage location LED flashed so they knew where the place

Re: SMT training classes and start up equipment

Electronics Forum | Tue May 05 13:44:57 EDT 1998 | Mark Mitchell

Mr. Desrochers; Philips EMT Americas offers a three day course entitled, "Introduction to SMT Manufacturing". The course addresses all major factors that influence the automated SMT assembly process. Topics that are discussed in the course are list

Material Ageing and Storage

Electronics Forum | Thu Feb 22 04:00:02 EST 2001 | Scott B

We are increasingly being asked to store components for longer and longer periods which we know through experience leads to reduction or total loss of solderability of the parts. 1) What is the industry accepted shelf life of tin/lead plated compone

Use and Restrictions of solder containing lead

Electronics Forum | Thu May 29 16:04:08 EDT 2003 | Rick B.

When is the U.S. required to fully implement the use of leadfree solder? European Directive 2002/95/EC is talking about year 2006 restricting the use of certain hazardous materials in electrical and electronic equipment.ie Lead,mercury,cadmium and he

Selective soldering pallets and solder balls

Electronics Forum | Tue Dec 17 13:42:04 EST 2002 | robf

There are a few emerging technologies that have been growing in popularity for the past few years. Pin through paste, press fit connectors and selective soldering machines seem to be displacing custom fixtures. Most of the mixed technology boards o

Use and Restrictions of solder containing lead

Electronics Forum | Tue Jun 03 12:24:50 EDT 2003 | blnorman

I have received information from the European Commissioners Environmental group that automotive electronics are not covered by WEEE (waste electrical and electronic equipment 2002/96/EC) or RoHS (reduction of hazardous substances 2002/95/EC) because

Use and Restrictions of solder containing lead

Electronics Forum | Thu May 29 17:48:00 EDT 2003 | jonfox

As far as I know, the limitations apply to to the manufacturing components, not the equipment per say. At this point there is no set date for the US at the national level. Basically our government is run by big businesses and their effect on our na

Headers and SMT

Electronics Forum | Wed Oct 28 09:37:32 EDT 2015 | capse

An alternative to selective soldering equipment is robotic soldering, like Japan UNIX.

Blistering and delaminating boards

Electronics Forum | Thu Sep 20 07:18:42 EDT 2018 | proceng1

Has anyone else been experiencing this lately? We have had a rash of boards that come in properly vacuum sealed. We store them in the hot room until we are ready to build, and we get bubbles under the solder mask. We've had 4 different jobs, all di

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