Electronics Forum: viewed (Page 6901 of 7890)

Yield on 0402 SMT Printed Circuit Board Assemblies

Electronics Forum | Fri Jan 05 22:10:45 EST 2007 | fastek

Craig- Your point assumes most if not all of the problem lies in inferior equipment. I understand your point but I believe that an excellent process can overcome the fact that you don't have brand new and pristine equipment. As an example you can

Conformal Coat and RTV

Electronics Forum | Wed Jan 03 21:20:22 EST 2007 | davef

Comments are: * General purpose RTV (RTV-108) releases an acetic acid (vinegar) during cure and corrodes copper, brass and sensitive metals. It is therefore NOT for use in delicate electrical or electronic applications. However, there is an electrica

Universal GSM Placement Data...

Electronics Forum | Thu Jan 04 06:29:09 EST 2007 | bT_Solutions

Thanks SWAG. I figured there must be a way to import data. I beleive right now, the SMT operators where I work are manually making the programs right on the GSM, which depending on the assembly, could take up to a full 8-hour shift (especially when t

Universal GSM Placement Data...

Electronics Forum | Thu Jan 04 09:59:37 EST 2007 | ratsalad

If you need any info about the 4785, let me know. If you understand Perl I'd be happy to send you the software I wrote for 4785 program generation. Mine is based around PanaPRO but it would at least give you a very simple optimization routine if

Where can i find Chip-on-board Forum?

Electronics Forum | Tue Jan 09 22:04:48 EST 2007 | Guest

Set Up Guy, I am not sure if the COB you are refering to means Circuit on Board . If yes, this process also include SMT . Package is a combination of some passive components and bare die. Passives are normally attached thru SMT using solder te

SMEMA Interface cables?

Electronics Forum | Mon Jan 15 01:13:25 EST 2007 | grantp

Hi, Does anyone know where to purchase the connectors? Specifically bulkhead connectors or PCB mount connectors. I am thinking about doing a general purpose SMEMA box that has a Basic Stamp in the core, and some buttons so I can use it for general

Problem with shielding component

Electronics Forum | Tue Jan 09 12:51:14 EST 2007 | aj

All, We have ran a few revisions of a New Product which is a tracking device using satellite navigation. The protos went well but now they have added a shielding can. We place 2 of these to cover the Frontend of the PCB. The test guys are having d

Indium Solder Hermetic Seal Voiding

Electronics Forum | Thu Jan 11 00:17:08 EST 2007 | behrsam

Thanks both of you for responding. I am using a protoype reflow oven. It uses a programable controller to ramp the temp up. It has convection and radiative heating. Ultimately yes, I would like to use a vacuum furnace like the sst but it is not c

SMT machine shift to China

Electronics Forum | Wed Jan 17 11:43:14 EST 2007 | stepheniii

The dumbest thing I read was the response to me saying people should not automatically send product to China. I was told not to bury my head in the sand. A lot of companies are being lemmings and taking it for granted it's best to send a product to C

Solder paste handing

Electronics Forum | Sat Jan 13 03:43:38 EST 2007 | Stephen- SMT engineer trainee

We are now using solder paste(OM325) and I have some problems on the folowing process: 1. We use the solder paste softer(Malcom SP-1) to warm-up for 20 mins, when it just take from refrigerator. Is there any problems for solderpaste performance? 2.


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