Author Topic: PCB:positive vs negative  (Read 1722 times)

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Offline bobthefirst1Topic starter

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PCB:positive vs negative
« on: October 27, 2011, 04:18:03 PM »
Which is better? Positive pcb or negative? I'm using the toner transfer method

Offline Soeren

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Re: PCB:positive vs negative
« Reply #1 on: October 27, 2011, 11:28:10 PM »
Hi,

Which is better? Positive pcb or negative? I'm using the toner transfer method
The question of using positive or negative photo resist (not PCB) is not an actual option when you use toner transfer, as you just need a thoroughly cleaned copper laminate.

Photo resist is used when you make PCB's with a film and UV light and while negative resist can be hard to come by for the hobbyist, it has a clear advantage over the positive types, as it's easier to avoid pinholes and hairline cracks in the traces.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 


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