Electronic Manufacturing Processes ELEX 1110

Upon successful completion, the student will be able to:

THE DESIGN PROCESS

• Design and organize a project to produce a product.
• Identify requirements and constraints on a product with respect to inputs, outputs, controls, instrumentation, by products and safety.
• Identify and select components for the product that are readily available, giving preference to those which are available from more than one manufacturer.
• Identify component mounting and spacing requirements.
• Plan a product to meet all these requirements, using accepted (simplified) design principles for structural integrity, ergonomic form and function and heat dissipation.
• Use AutoCAD to create an orthographic layout that will reflect industry accepted drafting standards.

PRINTED-CIRCUIT DESIGN

• The student will be introduced to the process of designing PRINTED-CIRCUIT ARTWORK using TraxMaker, a PCB (Printed Circuit Board) software package.
• Determine conductor width and spacing based on circuit requirement and environment.
• Explain and design one single-sided printed-circuit layout.
• Produce a computer-generated PCB with consideration to factors of component placement and run density.

PRINTED-CIRCUIT FABRICATION

• The student will be shown how to operate etching equipment used in the small-scale prototype production of printed-circuit boards.
• Be able to identify the parts and materials used to transfer the PCB image..
• Learn the operation of the etching process and equipment.
• Specify drill bit sizes and properly use circuit-board drilling equipment.
• Understand the environmental and biological hazards of a printed-circuit facility and apply appropriate safe handling practices.

PACKAGE FABRICATION

• House the PCB based on the student's own design and a pre-selected aluminium box.
• Apply sheet metal layout procedures.
• Apply sheet metal drilling and punching procedures to prepare the enclosure.
• Respect and apply safe practices in a workshop environment.

SOLDERING PRINCIPLES AND APPLICATIONS

• Use soldering to make effective and lasting electrical and mechanical joints between components, wires and circuit-boards.
• Use soldering tools and materials appropriate to the electronics industry.
• Attain the skills to produce high-reliability (Hi-Rel) soldered connections.
• Apply de-soldering tools and techniques.
• Perform component leads in the standard manner for printed-circuit board insertion.
• Attain basic understanding and skill required for removal and installation of surface mount components.
• Make a set of leads that will be used with the power supply output jacks to power-up external circuitry.

ASSEMBLY TECHNIQUES AND WIRING PRACTICES

• Apply fastening techniques using appropriate selections and sizes of fastening hardware.
• Identify the various types of fastening hardware including machine screws self-tapping screws, flat-washers, lockwashers and nuts.
• Apply wiring and harness techniques that will produce solid connections, continuous insulation and secure bundling and mounting of chassis interconnections.
• Analyze and troubleshoot basic operational problems.

ELECTRICAL POWER: INTRODUCTION

• The student will be introduced to Electrical Power and the electrical components that make up a power supply.
• Become familiar with the practical differences between AC (utility) and DC power.
• Understand the practical need for power supplies as conversion devices.
• Learn the fundamental electrical components, their IEEE/ANSI symbols, and labelling formats.

THE DOCUMENTATION

• Produce a final report containing the appropriate engineering documentation.
• Maintain a file of up-to-date engineering documentation including schematic & wiring diagrams, chassis orthogonal-view drawing, printed-circuit trace layouts, component layouts and drill charts, bills of materials.
• Recognize the critical need to revise promptly any documentation affected by changes.

Effective as of Fall 2005