Electronics Forum | Thu Nov 19 12:29:36 EST 2009 | mikesewell
Regarding more info on equipment - what you need is driven by your product and process requirements and tolerance for rework, labor amt, operator dependencies ..etc. EMPF offers a bootcamp for circuit card assembly, SMT mag publishes SMT 101 guide t
Electronics Forum | Thu Nov 05 03:40:34 EST 2009 | valeo
Hi Rajeshmara, Mail sent with the datasheet of the glue we use in production. Thanks for first information you provide me for the shear specifications on 1206. But can you be more precise on this point ? How did you define it ? Is anyone have more
Electronics Forum | Wed Nov 25 01:00:54 EST 2009 | henry_usa_stencils
The design of the opening apertures for the glue stencil and the metal thickness.Its is very important. The Engineer of the stencils supplier have to look into the height of the components and the gap of the 2 leg(pads)and give the assemly house an s
Electronics Forum | Wed Nov 04 08:49:44 EST 2009 | kpm135
Its been a while since I've worked with a QSP-2 but I seem to remember that they should have a puff off value where the machine will actually blow the part off of the nozzle. I think it was adjustable under the component handling but I can't remember
Electronics Forum | Fri Nov 13 11:41:37 EST 2009 | gregcr
Hi All, I am implementing a proper feeder maintenance program for my HSP chipshooter feeders. I have the calibration jig. I am developing a procedure with the following general steps: 1. Cleaning 2. Visual Inspection / Repair 3. Calibration / Testi
Electronics Forum | Fri Nov 13 18:29:50 EST 2009 | luisreyes
really need help!! Our company is experiencing a change on the Quality system. one of the things that we are discovering is the amazing variation during the reflow oven and wave solder processes. this week we found that the team had not been performi
Electronics Forum | Thu Nov 19 02:22:12 EST 2009 | andrzej
Hi, we have an idea of running one side of PCB using 58Bi/42Sn solder to prevent glueing components on other side of PCB when board is on second run through SMT process. I wonder what issues we can meet once we try to use SAC305 when reworking some
Electronics Forum | Tue Nov 24 10:03:45 EST 2009 | andrzej
Actully none couse we glue them. Please see attached file - there are red dots marking glue placment. I understand you want to check if there is any sense in gluing components. I`ll ask one more time - Is anoyne who reworked SMDs with SAC305 where
Electronics Forum | Tue Nov 24 19:07:12 EST 2009 | gregoryyork
I agree Patrick many people blame the assembly fluxes when it is some other hygroscopic chemistry left on the bare PCB such as surfactents from the HASL process these will do exactly what the guy reported in his post fail then cool down and pass ever
Electronics Forum | Thu Dec 03 07:37:44 EST 2009 | duso02
The quality of the brush is most important. We use artist brushes from Torrington Brush Works. Sable works best but are the most expensive. We use more camel hair. They work best for us as we "hand coat" hundreds of boards a week and go through many
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