Electronics Forum | Thu Aug 31 01:56:03 EDT 2017 | hxamalia
Good day , it is Amalia from HX Circuit Technology Co.,Ltd in China, we are a prefessional PCB factory with many years. We are focusing on quick lead time for PCB with good service . please contact with me now ,thanks Email: amalia@hx-circuit.com
Electronics Forum | Tue Sep 05 13:31:14 EDT 2017 | cyber_wolf
I am not sure why you would have an issue placing a DFN with your TP-9. Is the machine throwing it away or mis-placing ? Throwing the part away could have several reasons and so could mis-placement.
Electronics Forum | Sat Sep 02 00:22:44 EDT 2017 | ermani9
I have Solder Paste Inspection Machine of TRI make, which accepts the SMT pads CAD data in the .lst, .aoi, .srf or .asc formats only. Can any body suggest how to convert my existing data in .gbr or .gbx into the above reqd. formats. Pl suggest. Tha
Electronics Forum | Tue Sep 05 05:18:20 EDT 2017 | ravnikar39
Dear, has anyone problem after the depanalization of CEM-1 like this (picture in link)? https://drive.google.com/file/d/0B40MYZvzPFWFNnd6ejZYT3k4aVE/view?usp=sharing https://drive.google.com/file/d/0B40MYZvzPFWFaklHQTAydXJ0WFk/view?usp=sharing Is
Electronics Forum | Wed Feb 14 16:38:00 EST 2018 | cbart
i have seen that happen when the wrong process was utilized! your boards looked like they were v-scored and someone broke them apart, proper method would be to use a scoring separation machine.. pizza cutter. this would prevent this. its not a good i
Electronics Forum | Thu Sep 07 07:36:57 EDT 2017 | tsvetan
we use 0.12 mm stencil with 0.3 mm apretures for 0.5mm step FBGA153 memory without problems the solder paste is SAC305 Class4 http://www.olimex.com/Products/Components/Soldering/SOLDER-PASTE-SAC305-CLASS4/
Electronics Forum | Thu Sep 07 08:45:02 EDT 2017 | dleeper
In my experience with similar sized parts, the nano coatings (or what ever your supplier might call them) do help with repeatable paste release. How are you cleaning your stencils? A big red flag to me is that your stencil worked fine for the first
Electronics Forum | Thu Sep 07 11:35:45 EDT 2017 | slthomas
That is a good point, and was something that we discussed yesterday in our process eng. meeting. I don't have an answer right now as to the current cleanliness but I know they were washing (U/S) the stencil repeatedly during the previous run and in
Electronics Forum | Thu Sep 07 11:39:39 EDT 2017 | swag
Two magic bullets help us greatly with fine pitch printing: 1) nano coatings (we use a DEK product) YES it really does work 2) temperature control in the printer (AC unit). Of course good quality stencil and proper cleaning of the stencil are im
Electronics Forum | Fri Sep 22 14:10:19 EDT 2017 | slthomas
Just for the sake of passing along the information, the fine grained stencil provided zero improvement over the standard PhD stainless and was not nearly as helpful as the baked-on nano-coating. We probably won't be trying that again unless we go und
