PC Board Manufacturing Kate McDonnell & Cherelle Bishop CSU GK-12 Summer Planning 2011

Overview of Project September: Introduction to Project – Build Kelvin kit in small groups October: Lessons in Electricity and Processing Basics – Electricity and Circuits – Materials Science – PC Board Design & “Test” Design – Manufacturing PC Boards & Test Manufacture

Overview of Project November: Manufacture and test boards for Scott’s class December: Create posters describing PC Board work January: Final poster revisions February: Present posters at E-days

Lesson: Electricity and Circuits Electricity concepts – current, voltage, power, resistance Circuits Circuit Components – resistors, capacitors Op Amps

Lesson: Materials Science Basic material properties that we use for PC Boards Conductors and Insulators Semiconductors Why we use the materials we do

Lesson: PC Board Design & “Test” Basic PCB design Use ExpressPCB (free software) to design a “test” PCBExpressPCB Individuals can design “creative” PCBs to print and take home

Lesson: Manufacturing PC Boards Refer back to Materials Science – we make wires out of copper and need to remove excess Basic step-by-step guidelines for how to make PC boards – Printing mask design – Transferring mask design – Etch PC boards (using Hydrochloric acid and Copper Chloride) – Neutralize acid and remove mask – Add components, solder, and test connections

Final PCB Project Design PCB for a group from Berthoud – Get schematic from Berthoud – Create schematic on Express SCH – Send schematic back to Berthoud for final check – Use Express PCB to design PCB mask – Print mask and manufacture board – Solder components and test???

Assessment Pre/post-test about electricity, materials science, and PC boards Quizzes following each lesson Design of test PCB and functional PCB Create a poster describing the process and the work they accomplished – Presented to class at end of December – Presented at E-days in February