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STICK DIAGRAM EMT251. Schematic vs Layout In Out V DD GND Inverter circuit.

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Presentation on theme: "STICK DIAGRAM EMT251. Schematic vs Layout In Out V DD GND Inverter circuit."— Presentation transcript:

1 STICK DIAGRAM EMT251

2 Schematic vs Layout In Out V DD GND Inverter circuit

3 Schematic vs Layout A Out V DD GND B 2-input NAND gate

4 Stick Diagram A stick diagram is a graphical view of a layout. Does not show exact placement, transistor sizes, wire lengths, wire widths, tub boundaries.

5 Stick Diagram Represents relative positions of transistors Stick diagrams help plan layout quickly  Need not be to scale  Draw with color pencils or dry-erase markers In Out V DD GND Inverter A Out V DD GND B NAND2

6 Stick Diagram Metal (BLUE) Polysilicion (RED) N-Diffusion (Green) P-Diffusion (Brown) Contact / Via Layers

7 Figure 1: Schematic and Graph

8 Figure 2: Euler Path

9 Figure 3: Connection label layout 1 2

10 Figure 4: VDD, VSS and Output Labels 1 2

11 Figure 5: Stick Diagram, Interconnected Reference: Chapter 4, Appendix C, Digital Integrated Circuits, Jan M. Rabaey 1 2

12 Exercise 1 A B C Logic Gate A X = C (A + B) B A C C B i j

13 Solution: Stick Diagram of C (A + B) ABC X V DD GND

14 Exercise 2 A B C D X = (A+B)(C+D) D C C AB B A D Logic Gate

15 Thank you


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