Questions tagged [etching]
The etching tag has no usage guidance.
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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 ...
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Problem in etching a PCB
I was working on making my own PCB but faced a problem during etching. I used an iron to transfer the circuit to the copper board, some of the sketch wasn't fine so I used a permanent marker to make ...
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Best ways to mask missing toner after toner transfer PCB etching
I want to make a general guide for masking the missing toner on copper clad after toner transfer.
The masking methods I know so far:
Permanent marker (some say it doesn't work, I am intimidated by it ...
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Protecting vias with plated copper with the toner transfer method
With the film photoresist method, the film, if not etched off, can be used to form a protective layer over via to prevent the copper inside from being etched.
Is this possible with the toner transfer ...
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PCB etching went wrong or what?
I was trying to etch a PCB of 12x23 cm using FeCl3 powder. Below are the pictures of the process:
Before dipping into etching solution (some tracks were corrected using permanent marker):
After ...
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PCB manufacturing process
What process can I use for PCB etching? What chemical compositions required along with etching time, reuseability of the solvent, inks to be used so that copper layer of the drawing area is unaffected?...
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In PCBs, why is copper etched away instead of added?
I know that in virtually every case, PCBs start as a substrate with a layer of copper laminated on top, which is then etched away, leaving the traces. But why are the traces not added on an empty ...
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Trying to do circuit etching using ethanol or even iron
Have been trying to solve my circuit transfer from printout to the copper clad. Have failed mostly.
Have used laser printout.
Have used inkjet printout.
Have used high resolution print.
Have used ...
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Kicad negative plot pdf file export scaling issue
I have been using Kicad for about a month for my project. While finishing up the 2 layer design, I wanted to print out a negative plot on a butter paper with the top and bottom layer printed side by ...
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PCB photoresist method etching incomplete - only etched around borders of traces
I'm trying to make PCBs for the first time, but I hit a roadblock and don't know how to fix the problem.
I etched my 3rd developing attempt, but it looks like only the border around the traces was ...
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Ferric Chloride Etchant Disposal
I am a beginner with PCBs and wanted to start making some. But before I did, I wanted to make sure I was completely prepared. I just wanted to make sure that the information I have is correct and had ...
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Dry or wet etching in fabrication cmos chip?
What types of etching are used in conventional chip fabrication technologies such as TSMC 0.18, dry or wet?
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Minimum EAGLE trace width for PCB etching with glossy paper and a cloth iron
What`s the minimum widht and clearence that's etchable using a photo paper and an iron? I've heard using too small clearence might mess the ink resulting in shorts. I want to have 20V@400mA, will 8mil ...
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Beginner struggling with first time PCB etching - advice
First time hobbyist here.
Is it a common issue for closely placed track lines to end up touching each other during the toner transfer process (I'm assuming this is the correct term)? If so, are there ...
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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.
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