Consideration of a Ga-FIB in Lamella Sample Prep for EBIC/EBAC Analysis of Advanced-node SRAMs

Friday, November 1, 2024: 9:40 AM
202 (Hilton San Diego Bayfront)
Mr. Andreas Rummel , Kleindiek Nanotechnik GmbH, Reutlingen, Baden-Württemberg, Germany
Dr. Heiko Stegmann , Carl Zeiss Microscopy GmbH, Oberkochen, Germany
Ms. Cheryl Hartfield, MA, FASM , ZEISS Microscopy, Dublin, CA
Dr. Lorenz Lechner , Kleindiek Inc., Pleasanton, CA
Mr. Greg Johnson , Zeiss Microscopy, Poughkeepsie, NY

Summary:

We present an experiment to understand the possible detrimental effects of processing SRAM samples with gallium-focused ion beams (Ga-FIB) prior to electron beam-induced and absorbed current (EBIC and EBAC) characterization. To understand the magnitude of sample surface amorphization upon the ability to collect EBAC measurements, a lamella was prepared with different areas of increasingly improved polish, followed by EBIC measurements at 1 and 2 kV beam landing energy