Defects in Low-κ dielectrics and etch stop layers for use as interlay er dielectrics in ULSI

B. C. Bittel, T. A. Pomorski, Patrick M. Lenahan, S. King

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The electronic properties of thin film loW-κ interlayer dielectric (ILD) and etch stop layers (ESL) are important issues in present day ULSI development.1-6 LOW-κ ILD and ESLs with dielectric constants significantly less then those of SiO2 and SiN are utilized to reduce capacitance induced RC delays in ULSI circuits. However as the semiconductor industry looks to transition to 16 nm and beyond technology nodes, numerous reliability concerns with low-k materials need to be addressed. In particular, leakage currents, time dependent dielectric breakdown (TDDM) and stress induced leakage currents (SILC) are critical problems that are not yet well understood in ILD. A topic of current interest is ultraviolet light (UV curing) of low-k materials.5,6 We have made electron spin resonance (ESR) and current density versus voltage measurements on a moderately extensive set of dielectric/silicon structures involving materials of importance to low-k interconnect systems. Most of the dielectrics studied involve various compositions of SiOC :H. In addition we have also made measurements on other dielectrics including SiO2, SiCN:H and SiN:H.

Original languageEnglish (US)
Title of host publication2010 IEEE International Integrated Reliability Workshop Final Report, IIRW 2010
Pages37-41
Number of pages5
DOIs
StatePublished - Dec 1 2010
Event2010 IEEE International Integrated Reliability Workshop, IIRW 2010 - South Lake Tahoe, CA, United States
Duration: Oct 17 2010Oct 21 2010

Publication series

NameIEEE International Integrated Reliability Workshop Final Report

Other

Other2010 IEEE International Integrated Reliability Workshop, IIRW 2010
CountryUnited States
CitySouth Lake Tahoe, CA
Period10/17/1010/21/10

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials

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    Bittel, B. C., Pomorski, T. A., Lenahan, P. M., & King, S. (2010). Defects in Low-κ dielectrics and etch stop layers for use as interlay er dielectrics in ULSI. In 2010 IEEE International Integrated Reliability Workshop Final Report, IIRW 2010 (pp. 37-41). [5706482] (IEEE International Integrated Reliability Workshop Final Report). https://doi.org/10.1109/IIRW.2010.5706482