Circuit Bridge Project Guides - Make Your Own Printed Circuit Board

Printed from: http://www.cbridge.com/howtos/printedcircuitboard.shtml

Printed Circuit Board
Materials and Supplies
 • PhotoEZ™ or StencilPro™ HiRes stencil film • Liquitex High Viscosity Paint
• Positive image of circuit board design • Copper clad board
 • Ferric Chloride    • Plastic etching tray   
 
This project guide will show you how to make your own printed circuit boards using our silkscreen stencils along with your artwork. It assumes a working knowledge of the process involved in creating the artwork and etching a printed circuit board.

The circuit pattern in this guide is intended only to demonstrate the steps required to make a printed circuit board using PhotoEZ/StencilPro silkscreen stencils. Read all instructions before beginning your project. Read manufacture labels on products and supplies being used. Use safety glasses and gloves when using chemicals. Have FUN!
 
Project By:   Circuit Bridge
Time to Do:  3-5 hours
Skill Level:   Advanced

Instructions
PCB Materilas and Supplies Step 1: Gather your supplies
Printed Circuit Board Artwork Step 2: Create your artwork
The silkscreen stencil is a negative of your circuit design so be sure to layout and print your image as a positive non-mirrored image. For maximum detail use transparence or vellum paper when printing.
Printed Circuit Board Stencil Step 3: Make your silkscreen stencil
Expose and develop your film using the original artwork from step 1. Follow the instructions provided with your stencil film of choice. PhotoEZ or StencilPro will work just as well.
Printed Circuit Board Resist

Printed Circuit Board - Etching
Step 4: Silkscreen etch resist onto your clean copper clad board
Clean and prep your bare copper board as usual. In this example we used an acrylic based paint from Liquitex however any resist that is capable of being silkscreened can be used. Use the following tips to avoid bleeding and pinholes:

• Use plenty of paint.
• Keep squeegee at no lower then 45 angle. This will help prevent bleeding under the stencil.
• Use even strokes and go back and forth only once. Avoid the tendency to paint.
• Lift the stencil slowly. Lifting too fast will create bubbles and possible pinholes.
Printed Circuit Board - Copper Board Step 5: Etch your board as usual
Printed Circuit Board  
 
The information in this project guide is presented in good faith, but no warranty is given, nor results guaranteed. Circuit Bridge, LLC disclaims all liability from any injury to anyone undertaking the construction of this project as a result of improper safety precautions. Since we have no control over physical surrounding the application of information herein contained, Circuit Bridge, LLC disclaims any liability for untoward results.