Maricopa Community Colleges  CAD250   19966-99999 

Official Course Description: MCCCD Approval: 04/23/96

CAD250  1996 Fall – 2012 Fall

L+L

1 Credit(s)

2 Period(s)

Multi-layer Circuit Board Design

Generation of appropriate design documentation for the building of a double-sided printed wiring board (PWB) and the production of the electronic component assembly (ECA), including integrated circuits.

Prerequisites: CAD246 or permission of Instructor.

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MCCCD Official Course Competencies:

 

CAD250  1996 Fall – 2012 Fall

Multi-layer Circuit Board Design

 

1.

Combine AND, NAND, OR, and X-OR gates to make buffers, inverter, and lesser gates. (I)

2.

Group gates from a schematic to minimize the number of required IC's. (I)

3.

Generate a design layout from a schematic diagram. (I)

4.

Generate a double-sided PWB artwork from a design layout. (II)

5.

Generate a drill plan as part of a PWB package. (III)

6.

Generate a two-side silkscreen mask for a PWB, using a given design layout. (IV)

7.

Produce a set of circuit component assembly drawings (two- sided) from a design layout. (V)

8.

Generate, as a member of a team, an ECA/PCB drawing package for a double-sided electronic component assembly that includes IC's. (I-V)

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MCCCD Official Course Outline:

 

CAD250  1996 Fall – 2012 Fall

Multi-layer Circuit Board Design

 

I. Design layout

A. Integrated circuit (IC) packages

1. Gate combining

a. AND

b. NAND

c. OR

d. X-OR

e. NOR

f. X-NOR

2. Mixed logic

3. IC matrix

B. Schematic to design layout

C. Component arrangement

1. IC placement

2. Composite layout

D. Component density/board area

E. Scale

F. Double-sided board connector pin numbering

G. Red/blue layout

H. Vcc busses and ground planes

I. Feed-thrus (VIA's)

II. Artwork

A. Component side

B. Circuit side

III. Drill plan

A. Plated thru holes

B. VIA's

IV. Silkscreen

A. Silkscreen mask

B. Registration to targets

C. Component vs. circuit side (mirror)

V. Circuit card assembly (CCA)

A. Relating the components to the board

B. Component vs. circuit side

 

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