Printed Circuit Board Fabrication (PCB FAB) - Electronics Tutorials

HOME CONTENTS Circuits Components Definitions Revise: AS A2 reviseOmatic Video SEARCH

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SAFETY

Protective clothing and eye goggles.

EXPOSE

Light Box Expose for 130 to 150 Seconds

DISOLVE PHOTORESIST

Tank 1 Check Every 10 Seconds until Bare Copper Visible

Wash PCB

ETCH

Tank 2 Check Every 5 Minutes until All Copper Dissolved.

Wash PCB

CLEAN OFF REMAINING PHOTORESIST

Tank 3 Check Every Minute Until Clean Copper Visible

Wash PCB

TIN

Tank 4 Check Every Minute Until Shiny Tin Colour

Wash PCB

CLEAN UP

Clean yourself up. Wash your hands to remove any contamination.

Topics:

ammeter amplifier atom attenuator bandwidth battery circuits components Conductor Crosstalk Current definitions Distortion Earth-Ground Etch EtchQuickGuide Feedback formula fuse gain heatsink index maths microphone microswitch modulation neon Noise phase piezo-sounder Power Power2 rcd reactance reed-switch resources rms-peak si-prefix SinglePointEarthing speaker switch tilt-switch Transducer Transformer varistor Voltage voltmeter

Flash:

atom current phase Power

PDF:

DOC:

Images:

ammeter ammeter diagonal-moves Diode electret-mic Etch EtchMask fuse-slow fuse fuses gain heatsink-calcs-both heatsink-calcs heatsink heatsink humidity-sensor loudspeaker mic microswitch motor neon ohm-triangle ohms-law OhmsLawTriangle PD-and-Pot pd-and-voltage piezo-sounder pot-div Power r-parallel r-series rcd reed-switch rms-and-peak sampling-not-ok sampling-ok servo short signalAndNoise silicon-dope solenoid strain-guage1 strain-guage2 strain-guage3 switch-push-button switch sym_battery sym_bulb Transformer TransformerStructure varistor varistor2 voltmeter zener

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