High-Resolution Resistance Mapping in SEM

Autor: Frank Altman, Guillaume Boetsch, Grigore Moldovan, Wolfgang Joachimi, Jörg Jatzkowski
Rok vydání: 2018
Předmět:
Zdroj: International Symposium for Testing and Failure Analysis.
ISSN: 0890-1740
DOI: 10.31399/asm.cp.istfa2018p0353
Popis: This work presents advanced resistance mapping techniques based on Scanning Electron Microscopy (SEM) with nanoprobing systems and the related embedded electronics. Focus is placed on recent advances to reduce noise and increase speed, such as integration of dedicated in situ electronics into the nanoprobing platform, as well as an important transition from current-sensitive to voltagesensitive amplification. We show that it is now possible to record resistance maps with a resistance sensitivity in the 10W range, even when the total resistance of the mapped structures is in the range of 100W. A reference structure is used to illustrate the improved performance, and a lowresistance failure case is presented as an example of analysis made possible by these developments.
Databáze: OpenAIRE