Channel Hot Carrier (CHC) degradation is a key reliability concern in modern ULSI circuits, arising when carriers gain high kinetic energy under strong electric fields in a MOSFET channel. Also known as hot carrier injection (HCI), this effect impacts both NMOS and PMOS devices, degrading critical parameters such as VT, subthreshold slope, ID,on, ID,off, and gate current over time. The degradation rate varies depending on device structure and process technology.

As device geometries shrink and new materials are introduced, wafer-level reliability testing is becoming increasingly critical—driving the need for earlier, more precise characterization during R&D.

Discover how the Keithley 4200A-SCS Parameter Analyzer enables fast, flexible, and comprehensive CHC reliability testing to accelerate device characterization and time-to-market.