Electronics Forum | Thu Jan 25 17:14:44 EST 2007 | slthomas
Good luck with that. ;) More likely you'll have to adjust your profiles. In our case with the palladium terminations we had to touch them up. There were other parts on the board that couldn't take more than 5 seconds at ~235 C� (don't remember for s
Electronics Forum | Sun Jan 28 03:36:53 EST 2007 | sami
hi to all. I am new in this forums. but I like it too much. i am working on universal machine but sometimes i had a problem when the CAD data ( X,Y,Theta ) information are not correct, I adjust them manually in Board Enhanced Setup, my question is th
Electronics Forum | Sun Jan 28 22:03:22 EST 2007 | dave
ca anyone help i need to design a circuit which can deliver 18v from 24v the problem is that the "extra" 6v i dont just wanna lose as heat/or lost energy as I have a limited power supply is there an effective way to do this - i have basic el
Electronics Forum | Tue Jan 30 09:43:52 EST 2007 | Milas
Hi Does anyone know of any potential issues with using a ENIG pcb finish for lead free manufacturing ? I was once told that a pcb manufacturer found some "Pink Residue" on a batch of boards that had been finished with ENIG and been used for lead f
Electronics Forum | Fri Feb 02 21:31:38 EST 2007 | bill_gates
Hi, I am considering to use pressfit D-Sub and DIN connectors on a backplane. The IPC guideline does just cover pin protrusion for soldered pins, which have to be flush with the board as a minimum acceptable design. Yet, if the backplane may be thic
Electronics Forum | Tue Feb 06 06:41:53 EST 2007 | pavel_murtishev
Good afternoon, You have to use lead paste since none-RoHS components won�t withstand elevated temperatures. Solder paste manufacturers offer a lot of transitional pastes designed specially for mixed process. Ask your paste supplier for transitional
Electronics Forum | Mon Feb 12 17:05:29 EST 2007 | Jose
Today is more complicate to find components with lead than with "lead free", and the, I think that you have very feww lead components. And, if don�t work on exceptionals companies, you MUST use LEAD FREE PASTE. In one case, or in the opposite, the re
Electronics Forum | Wed Feb 07 07:36:11 EST 2007 | jax
mk, Should I read into the fact that you posted this on a sipad website? You could always add an etch process to you stencil design to gasket around the raised mask locations. It is currently done when additive etch's/trace's are used. The extra $20
Electronics Forum | Wed Feb 07 13:43:33 EST 2007 | realchunks
Board vendors are always right. Unless you build yourself in their facility, at their price. Ways around this are half etch your stencil over the vias, open the resist (mask) on the vias, or use your own product (Sipad). The resist (mask) does app
Electronics Forum | Mon Feb 12 13:15:14 EST 2007 | realchunks
Does this meet the SMQ230 recommended time above liquidous? Do you have any parts that cannot withstand 239 degress C? If meet SMQ230's recommended time and temps and your parts are rated for this temp, then you should be OK. The real proof is ref
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