Electronics Forum | Wed Jul 13 11:59:06 EDT 2016 | emeto
Moisture before reflow is consideration, because damages parts and boards in the reflow process. It is all about this water expanding as gas and cracks part or causes PCB delamination. Moisture after reflow is still affecting the work of the product
Electronics Forum | Wed Jul 20 12:48:21 EDT 2016 | adamjs
Hi, is there a reason why washing "no-clean" flux residue off of boards with 1(or 2)-ethoxy-propanol is not a widespread practice? This chemical is more commonly known as Henkel/Loctite/Multicore SC01. I've long known, as I'm sure most people do, t
Electronics Forum | Fri Jul 29 15:53:26 EDT 2016 | davef
Much a the accumulated knowledge is here: IPC-2252 - Design Guide for RF/ Microwave Circuit Boards [http://www.ipc.org/TOC/IPC-2252.PDF]
Electronics Forum | Mon Aug 08 00:53:58 EDT 2016 | hshorakaei
Can we use SMD Machines for printing inks on flexible PCB? (There is a FPC with four layer printed ink) I attached a picture of my board.
Electronics Forum | Mon Feb 05 02:55:43 EST 2018 | jingyiprecision
Hello Clayton , I have seen a lots of link above , Hope you find best source already , You might need board level shielding , If any interested can try http://www.jingyiprecision.com Regards, Becky
Electronics Forum | Thu Aug 11 20:12:12 EDT 2016 | davef
Different points on the board couple have different thermal masses. Look here: http://www.ecd.com/portals/5/products/vmole/V-MOLE-Verify-3-Thermocouple.pdf
Electronics Forum | Wed Aug 31 09:35:15 EDT 2016 | dekhead
Certainly possible CPU board issue; but check PC power supply, that all DCV are present and strong. www.dekhead.com
Electronics Forum | Fri Sep 02 04:18:48 EDT 2016 | bukas
i have tested voltages on Processor board X12. all voltages are ok and stabil but +VPP (PT8 - TP9), it reads 0 volts
Electronics Forum | Thu Aug 25 17:29:14 EDT 2016 | shawn_halo_1
Right, but these contacts have up to 36V running through it 20 minutes at a time unlike your wedding ring when you are swimming. If you take a look at the picture I posted in the last comment, that is what we are seeing over the course of use.
Electronics Forum | Thu Aug 25 18:14:10 EDT 2016 | davef
Shawn ... I believe you. I believe what you're saying. I don't believe that you received the metals that you ordered. From the way it looks I'd guess that you have no nickel and that you're seeing copper corrosion.
