Electronics Forum: assemble/ (Page 520 of 598)

Re: Any help reflow soldering Through Hole parts

Electronics Forum | Fri Mar 06 23:02:43 EST 1998 | Scott McKee

| | We have a double sided pcb that is surface mount on both sides. Now a Through Hole connector has been added. Appart from hand soldering does anyone have info. on reflow soldering the part. The connector is 0.1mm pitch, square legs. | | 1) Do you

Re: Soldering to Paladium vs. Tin_Lead plated comps

Electronics Forum | Fri Feb 20 09:41:11 EST 1998 | Chrys Shea

| I have been involved in SMT for only a few months so I am coming from a position of extreame ignorance. I have been asked to investigate the differences in soldering to components with Paladium coated leads vs the standard Tin_lead. I would appre

Re: I'm looking to find a traning course for PCB design & layout

Electronics Forum | Sun Feb 15 10:47:16 EST 1998 | SMT-ASSY

In reference to your Email response, we will propose to you in the next few days a course curriculum which we hope you will find of great interest. As we told you we offer courses for assemblers and techs in PTH, SMT soldering, SMT full process using

Re: Double sided reflow

Electronics Forum | Wed Feb 18 12:08:04 EST 1998 | Eyal Epstein

Hi, I am from Celtronix Ltd. we are a provider of Odd Form assembly equipment and have gained a lot of experience in double side reflow, both the chemical side of it as well as the automatic insertion of all types of TH components in paste. Enclosed

Re: SMT at home?!

Electronics Forum | Mon Jan 26 04:48:48 EST 1998 | Grant Petty

| Is there any way to implement SMT at home? | I want to assemble a prototype board of mine. | How can I hand-solder a 208-pin 0.5 mm lead | pitch PQFP -- lead-by-lead (the usual way), | or side-by-side (partial heating method)? | Alas, no SMD rework

Re: white dirty solder

Electronics Forum | Thu Jan 15 17:07:18 EST 1998 | Graham Naisbitt

A reasonable assumption but it could be a reaction between your solder resist and the fluxes in the wave and reflow processes. The issue is, how will anyone really know? Then, are they likely to compromise circuit reliability? I have a method that wi

Solder Joint Strength

Electronics Forum | Tue Aug 28 16:41:42 EDT 2001 | davef

Very few concern themselves about the strength of solder connections, because it doesn�t require much strength to keep a solder connection attached to the board. More important are factors that arise as a result of the different materials properties

glue measurement

Electronics Forum | Fri Oct 05 16:05:58 EDT 2001 | seand

Hello everyone, Your chief variable here is going to be your epoxy. Different materials react accordingly to various inspection methods but, DEPENDING on your print parameters and material, you may be able to utilize an inline inspection machine.

Possible to temporarily store mounted but not soldered PCB's?

Electronics Forum | Wed Sep 05 08:50:04 EDT 2001 | davef

No arument with others comments about moisture, but taking a different tact, consider that the volitle elements of the solder paste disppear as a function of the amount of time the paste is out of the container. [Maybe as a function of solder paste

Spacing and Yield

Electronics Forum | Tue Sep 18 11:34:36 EDT 2001 | jschake

The tightest spacing between neighboring 0201 components assembled was 8-mils. Please refer to the response for the query entitled �Minimizing Tombstoning Defects� posted by martys, as the response provided there is also relevant to address this que


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