Electronics Forum | Sat Sep 03 13:01:36 EDT 2011 | waveroom
I'm thinking that your soldering irons are not up to the task. take a tip temperature measurement of the iron prior to and during soldering process. With high temp solder alloys you need an iron that provides continuous temperature at the tip. Doing
Electronics Forum | Thu Mar 04 16:40:06 EST 1999 | Dave F
| Hi, | | For hand placement you should see about 150-200 ppm of errors (solder, placement, values etc) on a board populated of types such as 1206, 0805, SOT, Tantalum etc. . As for solely wrong components (component at wrong location) you can usual
Electronics Forum | Thu Mar 04 12:44:01 EST 1999 | SMTASSY
Hi, For hand placement you should see about 150-200 ppm of errors (solder, placement, values etc) on a board populated of types such as 1206, 0805, SOT, Tantalum etc. . As for solely wrong components (component at wrong location) you can usualy redu
Electronics Forum | Thu Jun 09 13:54:42 EDT 2005 | ppwlee
I'm curious what other companies are doing in their soldering area (wave/ hand solder/ solder fountain) to ensure thier employees are protected sufficiently against solder fume and lead oxides. Subsequently what it implies in terms of selecting the r
Electronics Forum | Mon Sep 03 09:48:12 EDT 2007 | davef
Joris We don�t know the maximum period to store the boards without having problems with blowholes. Too many variables to determine. We prefer to just fix the problem, but understand that you have stock that you need to build-down. Determining mois
Electronics Forum | Fri Aug 09 11:58:52 EDT 2002 | sam_b
Just started doing BGA rework. After the removal of the "old" component and after site cleaning/component reballing I am ready to install the component on the PCB. It is recommended to apply flux or paste to the board/component. I would appreciate m
Electronics Forum | Thu Sep 27 19:52:28 EDT 2001 | davef
All of the discussion of "environmental controls" are a matter of degree, dependent on the requirements of the product that you manufacture. For example: shops assembling under-the-hood products have different requirements than shops making garage d
Electronics Forum | Mon Oct 06 10:04:29 EDT 2003 | davef
Excess low residue flux is very dangerous to leave on your finished assembly, because it can: * Be corrosive to your solder connections * Promote dendrite growth. To prevent this, follow your supplier's recommendations on: * Applying the proper amou
Electronics Forum | Mon Oct 01 16:55:27 EDT 2001 | davef
I agree. Poor soldering technique is the most straightward way of creating solder balls during hand soldering operations.
Electronics Forum | Mon Aug 09 04:15:33 EDT 1999 | Jacqueline Coia
I am having cleaning problems when processing PCB's which have TAIYO solder mask on them. After processing, hand soldering and cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other soldermasks do no
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