Open Laboratory 2020: Cell optimization
Joerg VollrathLaboratory Instructions
In this laboratory cells from sclib.jelib and muddlib07.jelib are optimized and characterized.
Pick one cell of muddlib07 for optimization and mail to professor for confirmation.
| Matrikelnummer, Name | Cell (sclib) | Cell (muddlib07) |
| ***250, A | LUT22 | open |
| ***851, C | LUT24 | open |
| ***268, G | LUT2B | open |
| ***309, G | LUT2D | open |
| ***456, G | LUT2E | open |
| ***085, G | LUT22 | open |
| ***338, H | LUT23 | open |
| ***284, I | LUT24 | open |
| ***600, K | LUT27 | open |
| ***271, L | LUT28 | open |
| ***953, M | LUT2E | open |
| ***159, M | OR2 | open |
| ***833, N | LUT2B | open |
| ***312, R | LUT27 | open |
| ***639, R | LUT2B | open |
| ***640, R | LUT2D | open |
| ***848, S | LUT2E | open |
| ***877, S | LUT22 | open |
| ***297, S | LUT23 | open |
| ***426, W | LUT24 | open |
| ***900, R | LUT27 | open |
| ***606, A | LUT28 | open |
| ***916, A | LUT2D | open |
| ***093, Z | OR2 | open |
Cell Layout Optimization
Optimize the cell layout and compare old and new design.
Example: Switch2a, LUT21 as pictured above
Optimization rules
- Unit transistors:
PFET W=10 L=2
NFET W=7 L=2 - Exports M2-M1 contact in the center where the n-well meets the p-substrat.
- Exports have same grid as the VDD nwell, gnd p-substrat contacts.
- Straight polysilicon lines.
- Vertical M2 lines, horizontal M1 lines.
Characterization
Characterize functionality (truth table), delay times and power consumption with realistic source and load of the old and new cell with and without parasitics.
Deliverables
Explanation what you changed and why.
DRC no errors.
NCC no errors.
Layout
Delay times.
Power consumption.
Document your laboratory in a pdf document with a name of <Year>_Cell_ <name>.pdf and send it to joerg.vollrath@hs-kempten.de.
Submission is due 17.7.2020.