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| language:langs:sizing [2026/09/25 18:10] – [Low leak addition on channel length] rajit | language:langs:sizing [2026/09/26 12:51] (current) – [Low leak addition on channel length] rajit |
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| ===== Low leak addition on channel length ===== | ===== Low leak addition on channel length ===== |
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| In some technologies, the minimum length devices have extremely high leakage. To avoid using these, you can specify an adjustment that will be added to the length to avoid this case. This adjustment is only applied to minimum length devices. | In some technologies, the minimum length devices have extremely high leakage, but this is allowed by the foundry to get faster gates in limited use cases. However, by default, it is not a good idea to use such devices for ordinary production rules. |
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| This feature can be turned off by setting ''leak_adjust'' to zero. | To support this, the netlist configuration file includes an add-on for minimum length devices called the leakage adjustment parameter. This quantity is automatically added to minimum length devices only. |
| | The ''prs* { ... }'' annotation is used to indicate that this leakage adjustment add-on parameter should be turned off. Additionally, the sizing body can also be used to turn this off by setting ''leak_adjust'' to zero. |
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| <code act> | <code act> |