Electronics Forum | Wed Jul 07 10:17:33 EDT 2010 | flipit
We have this problem only with one manufacturer of LEDs. Avago LEDs give us the problems where SunLED and KingBright do not. We put a magnet under the embossed cover tape. The magnet is mounted to the feeder. Holds the part in the tape pocket. L
Electronics Forum | Thu May 20 16:22:07 EDT 2010 | remullis
I just got word from my board designer that the actual pad size is 11.8 mil and he is reducing the paste layer to 7.8 mil. To me this is way to much of a reduction. I am was accustomed to doing 20% reduction on any thing 20mil pitch or less. The scre
Electronics Forum | Tue May 25 12:43:00 EDT 2010 | jmedernach
I don't have experience with 1B73. I do have a ton of experience with CE-1155. There are a couple of gotchas with this material. First and foremost is that it HATES silicone residue. If the material is not sticking to parts and they aren't cerami
Electronics Forum | Tue Jun 08 17:12:42 EDT 2010 | flipit
Kic Thermal used Pyropel. Cut with a razor blade and glue together with a good Dow Corning high temperature silicone. You can buy Pyropel in various thicknesses. It is not cheap. $100.00 for a 24" X 24" X 3/16" sheet. You can buy at McMaster Car
Electronics Forum | Tue Jun 29 20:50:20 EDT 2010 | davef
For day-to-day production, you're going to need to document that you've: * Pulled an item from floor stock * Returned an item back to floor stock ... not everyone is capable of doing that process. Currently, you have an established in-bound material
Electronics Forum | Thu Sep 02 08:48:44 EDT 2010 | rway
You stated, "The larger the fid dia, lesser is the accuracy during recognition." I don't necessarily disagree as far as the positioning of the fiducial in relation to the camera. In fact, I believe this to be the case and with a perfect fid, this i
Electronics Forum | Wed Jul 13 17:02:49 EDT 2011 | doremi
Hi, I don't know if you have any AOI experience, so it is difficult to answer to your first question. Omron AOI software has a library, which is based on Jedec, so you can use just 10-15 different general models and will create hundreds of library co
Electronics Forum | Wed Sep 01 12:58:42 EDT 2010 | scottp
A good paste will print fine up to 5 in/sec or so. They key, as mentioned, is to get the pressure right for a given squeegee speed. If the squeegees aren't giving a clean wipe then you'll see huge variation in print volume which can lead to shortin
Electronics Forum | Fri Sep 17 03:03:29 EDT 2010 | grahamcooper22
Hi Gani, looking at the HASL icture and the poor wetting of the solder over the pads I would imagine that the HASL coating is very thin on the pads and in actual fact isn't 'solder' but is tin /copper intemetallic and this has poor solderability. It
Electronics Forum | Thu Sep 23 18:56:42 EDT 2010 | slwolbert
Greetings all: I may have a simpler issue going on with this Fuji IP2 machine I'm struggling with. IP2 will boot and zero set, but if production is to be done, during the nozzle check sequence it gives a check nozzle message. This is due to the no
