AQA GCSE Design and Technology · 8552
Paper 1
Revise: Modification of propertiesA patterned mask controls which areas receive UV light. This creates a resist pattern that protects the wanted copper during etching.
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GCSE Design and Technology · key term
Removing exposed material using a chemical solution; in PCB manufacture, it removes unwanted copper.
Used by AQA
Paper 1
Revise: Modification of propertiesA patterned mask controls which areas receive UV light. This creates a resist pattern that protects the wanted copper during etching.
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