Electronics Forum | Wed Aug 26 15:44:23 EDT 2020 | dwl
I agree with the other posters. A bottle will last a day tops, A dewar should last a week or two. Dewars have a limited shelf life as the liquid nitrogen will vent even if your aren't using it. My experience is with ACE machines. Bottles are really
Electronics Forum | Sat Mar 11 15:05:54 EST 2006 | Kerm
Hi Craig: I agree with muse. The problems almost always will show up later on duringg life cycles in terms of reliability problems. While the solder joints may look acceptable right after production there is no guarantee of meeting the reliability r
Electronics Forum | Fri Oct 22 10:35:56 EDT 1999 | Graham Naisbitt
Armin, I can supply you but wont. Why not? Because these materials have a short shelf life when packed into syringes. Your local supplier should be able to provide them but he will be obliged to make up a batch of 2 - 300 to be economical - but they
Electronics Forum | Tue Feb 25 06:06:11 EST 2020 | hexton
I am currently weighing up my options for resistors that will be fitted to a fully assembled PCB (PTH&SMT). Do I omit the stencil apertures leaving exposed pads (ENIG) so they can be hand soldered with fresh solder. Considering shelf life for soldera
Electronics Forum | Mon Aug 26 20:35:08 EDT 2002 | davef
There are no industry standards for eutectic solder-paste in conjunction with the life span of solder-paste. Whatever that is. Speaking of that ['whatever that is.'], what do you mean by �life span of solder-paste�? Is that: * Shelf life? * Workin
Electronics Forum | Thu Feb 27 02:55:53 EST 2020 | hexton
I want to avoid peoples preferences as they will differ and will not be a deciding factor. A heat gun will introduce risk to surrounding PTH components and having to add protection for those, will limit any gain in productivity. There is no question
Electronics Forum | Wed Dec 09 14:36:26 EST 1998 | Earl Moon
| Hi, I know for sure that by controlling temp. and humidity | conditions in SMT assy lines room, one gets advantage in | screen printing, adhesive dispensing, and pick&place | machines mainteinance. Does any one have any advice on why | else is a c
Electronics Forum | Mon May 10 08:00:14 EDT 1999 | Timothy O'Neill
| | | | I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so
Electronics Forum | Tue May 04 14:42:58 EDT 1999 | Chrys Shea
| | I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so I wi
Electronics Forum | Mon May 10 07:53:48 EDT 1999 | Timothy O'Neill
| | | I am about to embark on an effort to evaluate 3 different solder material suppliers and their recommended materials for our assembly process, in an effort to find the best supplier/material. We do mixed technology, with NOCLEAN chemistry so I
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