2. Disclaimer
2/19/20172
All Contents are collected from various sources
(Internet).
Thank you to all respective original owners.
Only for academic use.
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3. UNIT 2 (MOS MODELING)
STICK DIAGRAM
MOS LAYOUT
2/19/20173 kalyan5.blogspot.in
4. Stick Diagram and Representation
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A stick diagram is a stick representation for the
layout and represented by simple lines.
It shows all components with relative placement.
It does not show exact placement, transistor sizes,
wire lengths, wire widths, tub boundaries.
n-diffusion (device well, local interconnect)
Polysilicon (gate electrode, interconnect)
metal (contact, interconnect)
simple contact cut
depletion implant
Buried contact cut
Metal-1
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5. Mask Layout Encoding for Different Layers
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N Type diffusion
P -Type diffusion
Polysilicon
Metal 1
Contact Cut
Ion implantation
Buried contact
VDD or VSS contact
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6. Stick Diagram
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Stick diagrams help plan layout quickly
Need not be to scale
Draw with color pencils or dry-erase markers
Metal
Polysilicon
Metal Contact
P-Doping
N-Doping
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7. Stick Diagram & Corresponding Mask
Layout
2/19/20177
Layout: Do not forget the
implants for depletion mode
transistors and to write in the
length to width (L:W) ratio for
each transistor
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