[Elecraft] W1 Circuit Board

Matt Palmer kd8dao at gmail.com
Sun Jul 26 07:45:38 EDT 2009


ENIG is better but unless its class 3 equipment it doesnt make much
difference....


Matt
W8ESE
Former KD8DAO




On Sun, Jul 26, 2009 at 5:00 AM, Brett Howard<brett at livecomputers.com> wrote:
> I thought the RoHS compliant stuff that Elecraft is doing was all in the
> ENIG process.  I've ordered a K1 and a K3 since RoHS and all the boards
> are ENIG.  Perhaps for the W1 they are using IMAg?
>
> I should explain:
> ENIG = Electroless Nickel Immersion Gold (or gold pads)
> or
> IMAg = Immersion Silver (or silver (whiteish) pads)
>
> For the record both have their pluses and minuses such as the IMAg is
> more susceptibile to oxidization and other cleaning issues (cleaning
> when the boards are made) where as ENIG is usually less often plagued by
> cleaning issues however contamination in the process can lead to whats
> referred to as black pads.  ENIG costs a little more and is generally
> accepted as slightly "better".  Probably mostly because of the higher
> cost. ;)
>
> ~BTH
>
> On Sat, 2009-07-25 at 19:52 -0400, Don Wilhelm wrote:
>> David,
>>
>> I believe that is one version of the RoHS compliant solder pads.
>>
>> 73,
>> Don W3FPR
>>
>> David Heinsohn wrote:
>> >   I just started working on the W1.  So I just really looked at the
>> > circuit board.  I noticed that the pads seem to be white rather than
>> > silver or gold.  So all you bright folks can tell me what's different
>> > and why.  I assume that this is a new and better way to produce a
>> > board.  It certanly takes solder OK.
>> >
>> > TNX
>> > de
>> > KD0R
>> > David
>> >
>> >
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