Electronics Forum: 2008 (Page 391 of 429)

Plugging of via through holes

Electronics Forum | Wed Jul 23 08:18:29 EDT 2008 | davef

Q1. Is this a standard process for plugging? A1. Not as such. We checked both IPC-6012 and IPC-SM-840. Neither comments on plugging. So, your fabrication notes rule the day. Q2. Is this okay for such thick PCB's or is it mandatory to use a special pl

Soltec 6748 ive Solder

Electronics Forum | Fri Jul 25 11:29:50 EDT 2008 | wavemasterlarry

Listen, my people told me that i was being recalled to The Forum. Iam a busy man trying to erect my own company these days My fenture in China was an I opener and I feel I need to start working for myself there fore I haven't been on The Forum enou

Soltec 6748 ive Solder

Electronics Forum | Fri Jul 25 13:53:48 EDT 2008 | wavemasterlarry

I am done but was informed by people that work for me. I guess theres a need for my input on The Forum so since Im a man that is willing to help others I am here. I agree that my key board an i really don't like each other but that doesn't mean im

Time and temp in lead and lead-free reflow

Electronics Forum | Sat Jul 26 07:42:49 EDT 2008 | pcbbuilders

I am not very concerned about production time, but it is always a thought! Quality is more importnant of course. We have 2 different pastes, with almost identical requirements. We can get close to their profiles, but i am worried that i am spending

Time and temp in lead and lead-free reflow

Electronics Forum | Mon Aug 04 09:30:16 EDT 2008 | grics

If you have concerns, you can look at the datasheet for each component or contact one of their application or materials engineers and find out what the components are rated for...process-wise. IE, how long can I be in the oven with this part, at what

Help Building Simple Circuit Board

Electronics Forum | Tue Jul 29 01:15:51 EDT 2008 | devinrhode

Thanks A lot for your help. I dont know what could hold a 5mb song and how to make it auto play when it opens up. Im afraid those sites wont show me a template for something like that? Is there anyone skilled enough that could just go on paint and de

Help Building Simple Circuit Board

Electronics Forum | Wed Jul 30 08:45:42 EDT 2008 | grics

You could also try the ipclistserv "tech net". It is an email list and there are a lot of design engineers that maybe willing to lend you a hand. It kind of reeks to up but maybe worth the time. http://listserv.ipc.org/scripts/wa.exe?A1=ind0807

how to measure an assembly cost of a board

Electronics Forum | Tue Aug 12 19:18:34 EDT 2008 | arminski

Hi davef, couple of questions: clarifying costing of direct labor against overhead cost: an operator loading PCB onto the reflow oven is a direct cost, how about the reflow process time of the PCB while travelling inside the reflow, is that an ove

ive solder profiles

Electronics Forum | Tue Jul 29 12:51:40 EDT 2008 | grics

I am having some problems with some of my pcbs at ive solder. We are using an ersa versaflow. It has an automated spot/spray fluxer (Interflux Pacific 2009M) , 1 preheat stage, a leaded pot/nozzel, and finally a lead-free pot/nozzel. Nozzels move, b

ive solder profiles

Electronics Forum | Mon Aug 04 14:17:18 EDT 2008 | grics

Patrick, you are right. I am sorry. It is a Water based flux. (We have another no clean flux indium 3592 that is used in our leaded process. It is alcohol based and had their base confused) Chunks, yes, this has always been a problem. If ther


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