Electronics Forum: so-4 (Page 1 of 1)

Black Pad

Electronics Forum | Fri May 02 09:49:19 EDT 2003 | tommyg_fla

3NaH2PO3 + H2SO4 + 2H2 + Ni^0 Potassium is co-deposited with the nickel, as follows: H2PO2^- + Hads => H2O + OH^- + P 3H2PO2^- + P => H2PO3^- + H2O + 2OH^- What is Hads?

Black Pad

Electronics Forum | Thu Apr 24 20:39:01 EDT 2003 | davef

3NaH2PO3 + H2SO4 + 2H2 + Ni^0 Potassium is co-deposited with the nickel, as follows: H2PO2^- + Hads => H2O + OH^- + P 3H2PO2^- + P => H2PO3^- + H2O + 2OH^- Nick Biunno gives a very short, over simplified summary: "Everybody looks at the nickel, b

Re: Suspected Pink Ring

Electronics Forum | Tue Jul 27 17:47:36 EDT 1999 | Earl Moon

| While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That would

Re: Suspected Pink Ring

Electronics Forum | Wed Jul 28 12:02:48 EDT 1999 | Wolfgang Busko

| | While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That wou

Re: Suspected Pink Ring

Electronics Forum | Wed Jul 28 16:36:30 EDT 1999 | Earl Moon

| | | While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That w

Re: Wadda Ya Mean Wadders Different?

Electronics Forum | Wed Sep 02 16:50:49 EDT 1998 | Earl Moon

| | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed, mix

Re: Wadda Ya Mean Wadders Different?

Electronics Forum | Thu Sep 03 12:12:41 EDT 1998 | Dave F

| | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon bed,

Re: Corrosiveness Measure

Electronics Forum | Thu Sep 03 21:51:16 EDT 1998 | Dave F

| | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, carbon

Re: Corrosiveness Measure

Electronics Forum | Fri Sep 04 08:49:04 EDT 1998 | Ben Salisbury

| | | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter, car

Re: Corrosiveness Measure

Electronics Forum | Fri Sep 04 09:51:34 EDT 1998 | Dave F

| | | | | | | | | We�ve been thinking again and need your help in sorting through an issue related to deionized (DI) water cleaning of assembled boards. | | | | | | | | | THE BACKGROUND: The water reclaiming systems goes: gross filter, fine filter,

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