Electronics Forum: temperture osp boards (Page 1 of 30)

osp finish

Electronics Forum | Wed Jan 21 16:55:22 EST 2004 | patrickbruneel

Hi, Are you testing bare boards or soldered boards. Are the test probes in contact with soldered pads or contacting the copper with the osp coating (not soldered). If you could clarify this it would be easier to give some hints for probable causes.

N-tech osp problems

Electronics Forum | Tue Sep 26 08:41:27 EDT 2000 | greg

I am processing PCB's that have an n-tech osp coating and am finding huge inconsistencies in wetting. Some boards process clean with good wetting and the next has terrible wetting. The boards are stored and handled properly. Has anyone had this

Re: N-tech osp problems

Electronics Forum | Tue Sep 26 20:19:51 EDT 2000 | Dave F

Never heard of N-Tech. Whose material do they use? Two common materials are: Imidazole (Via Systems) and Entek (Enthone) OSP is a lacquer that fabs apply to boards by either spraying or dipping. What thickness control does your fab use? For inst

Lead Free boards

Electronics Forum | Mon Aug 28 13:38:09 EDT 2006 | Steve

What kind of lead free board? ImSn, ImAg, ENIG, OSP?

Lead Free boards

Electronics Forum | Wed Sep 06 17:13:17 EDT 2006 | Board House

PB-free Hasl was not mentioned due to the following: 1)Equipment Convertion at the PCB Manufacturing side is expensive. 2)You are subjecting the PCB to Higher Temps than Std. solder. 3)Most PCB Houses are not going to invest in Two Hot Air level

Lead Free boards

Electronics Forum | Tue Aug 29 11:22:12 EDT 2006 | yuceltemel

Dear Bruce, We had the same problem in the same condition. Every compnent and the PCB (OSP) has changed as lead-free and we need to solder them with SnPb. For solution we have increased the flux amount applied on PCB and the pre heat zone temper

Lead Free boards

Electronics Forum | Mon Aug 28 17:04:52 EDT 2006 | Board House

ImSn - Immersion Tin - Not Recomended- short shelf life ImAg - Immersion Silver - Prefered Surface finsh by most Board houses, Best reworkablility, 12 moth self life, ENIG - Electroless Nickel Immersion Gold - Second Choice for Board Shops, 12 -

Re: Gold boards

Electronics Forum | Wed Jul 01 11:19:50 EDT 1998 | Earl Moon

| I'm having a problem getting good reflow on gold sufaced boards. The profile looks good and I have adjusted it both hotter and colder and adjusted the various times ( soak, reflow ) to no avail. What realy gets me Is that a month ago we built some

Re: Gold boards

Electronics Forum | Thu Jul 02 15:23:15 EDT 1998 | Justin Medernach

| | I'm having a problem getting good reflow on gold sufaced boards. The profile looks good and I have adjusted it both hotter and colder and adjusted the various times ( soak, reflow ) to no avail. What realy gets me Is that a month ago we built som

Moisture absorbtion in circuit boards

Electronics Forum | Fri May 31 10:35:46 EDT 2002 | dason_c

I think that the IPC spec only apply to the MSD. I had a paper from Lucent and forwarded by Francois Monette, please aware that the first 2 hours, the moisture doesn't bake out from the assembly/component and result show that it is increase the weigh

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