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T1W5 AI - EES

PCB Etching and Soldering Concept

TermDefinition
PCB Etching the process of removing unwanted copper from a copper-clad
Breadboards or twisted wires Temporary setups
Copper-clad board Board coated with a thin layer of copper
Ferric chloride (FeCl₃) Chemical solution that removes copper
Traces Copper paths that conduct electricity
Layout Printed design of the circuit
Plastic Container Recommended when handling an etching solution because plastic does not react with the chemicals in the etching solution.
Mini Electric Drill used to create the holes where component legs will be inserted
PPE Face mask, Apron, Rubber Gloves
Step 1 (Etching Process) Clean the copper board
Step 2 (Etching Process) Transfer circuit layout
Step 3 (Etching Process) Apply etching solution
Step 4 (Etching Process) Rinse and dry the board
Step 5 (Etching Process) Drill component holes
Etching Process OHS • Wear gloves and goggles • Avoid skin contact with chemicals • Work in well-ventilated area
Soldering the process of joining electronic components to a PCB using molten metal alloy called solder.
Soldering Iron a hand tool used to join electronic components, wires, or metals by melting a filler metal (solder) into the connection.
Solder Metal alloy used to join components
Flux Chemical that cleans metal surfaces
Soldering Pump is a vacuum tool used to remove molten solder from circuit boards during repairs, component replacements, or rework.
Cold solder joint Weak and dull solder connection
Proper Soldering Step 1 Heat the joint
Proper Soldering Step 2 Apply solder to the joint
Proper Soldering Step 3 Remove solder, then iron
Proper Soldering Step 4 Allow joint to cool
Soldering stand A soldering stand provides a secure, heat-resistant resting place for a hot soldering iron.
Good joint shiny, smooth, cone-shaped
Safety Practices in Soldering •Use eye protection • Avoid touching hot iron • Work in ventilated area
Created by: Teacher Meow
 

 



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