Patent ID: 7807997
Filing Date: 2010-10-05
Classification: G01R,H01L

Abstract:
1. An arrangement for measurement of capacitance of a target SOI-MOSFET, said target SOI-MOSFET being a body-floating-gate type MOSFET and having a first source electrode, a first drain electrode, a first gate electrode, and a first body but having no body contact, said arrangement comprising: a first test element group (TEG) for measuring capacitance between two elements of the first TEG, said first TEG being a SOI-MOSFET having a second source electrode, a second drain electrode, a second gate electrode, a second body, and a first body contact, said second gate electrode having a shape defined by a combination of said first gate electrode and a first additional shape, and said two elements of the first TEG being the second body and the second source electrode or being the second body and the second drain electrode; and a second TEG for measuring capacitance between two elements of the second TEG, said second TEG being a SOI-MOSFET having a third source electrode, a third drain electrode, a third gate electrode, third body, and a second body contact, the second gate electrode of said first TEG having a different shape than the third gate electrode of said second TEG, said third gate electrode having a shape defined by a combination of said first gate electrode, said first additional shape and a second additional shape, said first additional shape being exactly the same shape as said second additional shape, and said two elements of the second TEG being the third body and the third source electrode or being the third body and the third drain electrode, said capacitance to be measured being the capacitance between the first body and first source electrode or between the first body and the first drain electrode.