Which mechanism causes an increased breakdown voltage in semiconductor insulators when high dielectric constant materials are incorporated into MOSFET gate stack spacers?

💡 Explanation

Band gap widening near stress concentrators increases insulator resistance at edges because mechanical stress induces local band gap modification via the photoelastic effect leading to decreased electron tunneling rates, therefore increasing breakdown voltage rather than failure via impact ionization at weak points.

• Which outcome is caused by exceeding designed compression ratio limits within a gasoline engine cylinder?
• Which mechanism causes communication loss when atmospheric conditions increase ionospheric plasma density?
• Which operational problem arises when multiple lasers, intended for optical interferometry, lack temporal coherence?
• Which risk increases when laser light encounters an etalon with imperfections?
• Which property change arises when strong ligand field splitting occurs in a transition metal complex?
• Which outcome occurs when applying extreme gravitational forces to local spacetime?