P-MOSFETs
The ICS Instructions contain the basic procedures for making measurements.
This screen is intended to point out things unique to using
the PMOS model file.
Device Selection
Below are some guidelines for chosing which devices to measure
for each of the Devices Under Test (DUTs). Normally, you will only
have to fill in a single model since each requires probing 3 devices.
- large
- Use the 20 μm gate oxide PMOSFET
- narrow
- Use one of the left-most FETs in the bottom row of the
pMOSFET array.
- short
- Use the shortest channel gate oxide pMOSFET you can find that works. Hopefully, this will be in the top row of the array.
- cap perimeter
- Use the "large" FET for this measurement. It doesn't
really matter whether the Drain or Source is used for the
CM(L) connection.
- cap area
- Use the "narrow" FET for this measurement. It doesn't
really matter whether the Drain or Source is used for the
CM(L) connection.
Probe Assignments
- SMU1/probe1/CM(H)---->Substrate
- SMU2/probe2---->Drain
- SMU3/probe3---->Gate
- SMU4/probe4---->Source
Note: CM(L) will have to be connected to either the Drain (probe2) or Source (probe4) as needed to complete the measurements.
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