Electronics Forum | Wed Mar 21 19:39:06 EST 2001 | davef
Thank you for the contributions you've made in this thread. May be setting people free to be involved in other areas is the answer. Situations that have me grinding my teeth are: * The head of Purchasing drop-ships a reel of resistors to a burn-in
Electronics Forum | Tue Apr 03 22:03:18 EDT 2001 | davef
With friends like you, who needs enemies? I�d guess that the perceived benefits of flat pads for your 20 mil pitch and below components counter-balance the higher cost, gold being a solder pot contaminant, limited solder mask compatibility, potentia
Electronics Forum | Tue Apr 17 09:38:04 EDT 2001 | CAL
With some help from our good Friends at Agilent Technologies our RF Lab includes testing up to 100GHz. Equipment includes Vector network analyzer, signal analyzer, dual channel power meter, noise filter meter, advanced impedance analyzer (including
Electronics Forum | Thu Apr 19 11:04:43 EDT 2001 | Spanky
All, We are getting ready to start running with 0201 passives. I have never run these before. We have run some 0402s however. We don't have any assemblies in-house yet, so I can't give any intelligent information regarding the board design (size,
Electronics Forum | Mon Apr 23 17:30:08 EDT 2001 | davef
Step 1: Print paste on the board, skip placement, reflow the board, check solderability. Step 2: Goto Step 1. White Tin Solderability: The most common reason for solderability issues with the white tin surface coating during multiple thermal excur
Electronics Forum | Thu Oct 26 13:56:08 EDT 2000 | ptvianc
Hello: Pre-baking laminates should only be performed:(1) to meet contractual agreements or (2) in response to an actual defect that can be traced to PWB water absortion. Besides the fact that a pre-bake is an enormous process "bottleneck," it also
Electronics Forum | Tue May 29 16:52:07 EDT 2001 | hussman
By far the easiest way is to track solder paste measurement on your board - or solder defects after reflow (key word- easiest). Why spend 2 weeks examining a stencil when it clearly doesn't make defects, or IS making defects. I find using 2-D data
Electronics Forum | Thu May 24 09:11:12 EDT 2001 | Grant Petty
Hi, I would agree. We purchased a TP9 just the slow machine, but we were a small company at the time, and it worked fantastic. Almost no maintenance, and it's a dream to changeover. The serivce in Australia is also very good, but that does not appl
Electronics Forum | Wed May 09 13:11:22 EDT 2001 | zam_bri
Hi.. Recently, I have received a few reels of 0402 with an old date code ( but still less than 2 years old).I don't have a capability in-house to carry out the solderability test except for the dipping test ( dip the components in the molten solder
Electronics Forum | Fri May 11 15:43:41 EDT 2001 | davef
More information would be helpful. For instance: * Talk about the distribution of the problem, including a single lot or from various lots and over components and component types on the board * Tell us about the board (ie, thickness, type, solder ma
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