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0 votes
1 answer
92 views

Is it possible to expose dry photoresist film to UV before applying to copper for etching?

I've looked at a couple of resources regarding etching PCBs using dry photoresist film and in each of the methods, the film is applied to the copper before the image is projected onto the film with UV ...
Daniel's user avatar
  • 365
2 votes
1 answer
302 views

PCB electroplating then etching

How can I protect the through holes copper which is electroplated from being etched away by the ferric chloride? Is there a resistive solution or it`s just the conductive ink.
Ahmed Emad's user avatar
1 vote
2 answers
1k views

Custom/DIY Metal-Core PCB?

I would like to fabricate a slight enhancement over the metal-core PCB's shown here: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=6071 Specifically, my application requires 2 LED's of ...
Ismail Degani's user avatar
2 votes
3 answers
409 views

Presensitised-PCB Build Method

After completing many basic circuits on stripboard and premade PCB I've decided to try my hand at making my own PCB. Following some other forum posts this seems do-able but will likely take some trial ...
Jordan Cartwright's user avatar
2 votes
1 answer
6k views

Proper storage of ferric cloride PCB etchant

I etch about half a dozen printed circuit boards each year at home, using an aqueous ferric chloride AKA iron(III) chloride etchant solution. As I want to minimize the costs and hassle of buying new ...
jms's user avatar
  • 8,661
5 votes
4 answers
863 views

Why did my homemade PCB turn out like this?

I did a first experiment with the UV-lamp + Transparency + Presensitized-Board method. Using a randomly drawn pattern, this was my (promising but unsatisfactory) result: What could typically be the ...
boardbite's user avatar
  • 4,942