Electronics Forum | Thu Aug 07 15:27:57 EDT 2014 | tombstonesmt
We splice all day. We use sierra splice tool and their yellow splice. Technique that I found works very well is to peel back the cover tape of new reel over two empty slots (our machine detects when splice occurs and allows two empty slots without re
Electronics Forum | Thu Jul 10 15:03:57 EDT 2014 | alexeis
Hi, An answer to this question is very complex. The amount of components and their type is only one parameter to determine the level of failure. Additional parameters that can influence are: 1. The density components on the card 2. Machine type and
Electronics Forum | Wed Jul 16 11:57:11 EDT 2014 | markhoch
We're a Tier 1 Automotive Supplier building, what I like to call, Peanut Butter and Jelly Boards. (High Volume, Low Complexity) Our first pass yield, using standard 1st Article Inspection and AOI is about 98-99% on any given day. Last night, for ex
Electronics Forum | Wed Jul 16 12:13:27 EDT 2014 | deanm
Thank you for your comments so far. I believe I threw some people off by my wording. Clarification: How feasible is it to run a board straight into the reflow oven without inspecting it first for any placement defects? Is nudging parts and performin
Electronics Forum | Mon Jul 21 12:23:31 EDT 2014 | jimmyboz
As has been pointed out by other well experienced individuals, this is a complex question. But the simple answer is "It is your decision". Choose any goal less than 100% and strive to reach it. There are hundreds of questions to ask before an obje
Electronics Forum | Sat Sep 27 19:41:55 EDT 2014 | cyle
In my office we strive for no retouch prior to reflow, it can be done, you just need your operator to be competent enough to know how to set up your machine correctly. I would say 99% of parts that are misaligned are user error, they are either not
Electronics Forum | Thu Jul 10 11:24:27 EDT 2014 | spoiltforchoice
Use an oil free compressor ;). My UK based answer would be: We treat our air at point of use with a desiccant air dryer by Walker Filtration (this unit looks remarkably similar to units by Mark, Beko and others (especially the controller) this dryer
Electronics Forum | Wed Jul 16 06:54:36 EDT 2014 | alexeis
Hi, The answer is very complex depends on the type of machine, the operator's capabilities and process. There are machines that let you perform the above side then stick carts into the machine and produce. Event such a process is the length of a few
Electronics Forum | Wed Jul 23 18:14:46 EDT 2014 | warwolf
We have worked out as a guide formula to help us calculate this. As we have products that range from 5 unique pars to ~300 parts it is tricky to answer clearly. we worked out an average time to change our feeders at 3 minutes (this includes removin
Electronics Forum | Thu Jul 17 20:20:21 EDT 2014 | mac5
Hi June, The biggest issue with an OSP finish is as soon as the PCB sees a heat cycle (reflow or wave) the finish will begin to degrade. If you have a single sided SMT assembly with THT components installed downstream it works pretty good. But a dou
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