Re: Why don't they mark SMD caps?

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#799

From: JosephKK
Date: Fri, 24 Jul 2009 04:15

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On Thu, 23 Jul 2009 23:08:51 +1000, "Shaun" <not.today@go.away.au>
wrote:

>
>"Tim Williams" <tmoranwms@charter.net> wrote in message 
>news:r1Y9m.18834$eS5.11501@newsfe25.iad...
>> "Shaun" <not.today@go.away.au> wrote in message 
>> news:4a684505$0$2227$afc38c87@news.optusnet.com.au...
>>> It might be possible but I can't think of any non-conductive material 
>>> that could be layered thin enough and still go through a wave solder 
>>> machine.
>>
>> Um, so what about the stuff they put on resistors?
>>
>> Ink is incredibly thin stuff.
>>
>    I didn't think an ink would withstand the the temperature (thinking 
>along the lines of markings either being etchings or printed then 
>encapsulated) but I have found an ink that could withstand the temperature, 
>can even be used on ceramic materials, only problem is it has the be air 
>brush stenciled, manufacture states it's not suitable for stamp or roller 
>application.
>    Okay so I've got no idea why such an ink isn't used to directly print to 
>the capacitor,
>
>Shaun 
>

Come to think of it, wave solder is more of a through hole process.
The modern process is reflow.  Wave solder does not pay well with SMD
parts on both sides, reflow does.

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From: "JosephKK"<quiettechblue@yahoo.com>
Newsgroups: sci.electronics.design,aus.electronics
Subject: Re: Why don't they mark SMD caps?
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Date: Thu, 23 Jul 2009 21:15:26 -0700

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