Title
Impact of Mechanical Stress on the Electrical Performance of 3D NAND
Abstract
We have developed a methodology for analyzing the impact of mechanical stress on the electrical performance of 3D NAND devices. The methodology relies on in-situ electrical characterization of 3D NAND flash memory under application of an external load with a nanoindenter. The forces applied in the experiment are converted to stress using finite element modeling and the obtained values are correlated with electrical characteristics. With this method, I <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ON</inf> and I <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">OFF</inf> degradation with compressive stress along the memory channel is demonstrated and compared for three types of channel materials: polysilicon full channel, single crystal silicon full channel, and polysilicon macaroni channel. TCAD simulations attribute the changes in I <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ON</inf> and I <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">OFF</inf> to mobility decrease and Shockley-Read-Hall generation rate increase under stress, respectively.
Year
DOI
Venue
2019
10.1109/IRPS.2019.8720410
2019 IEEE International Reliability Physics Symposium (IRPS)
Keywords
Field
DocType
3D NAND,FLASH memory,mechanical stress,reliability
Electrical performance,Mechanical engineering,Stress (mechanics),Electronic engineering,NAND gate,Engineering
Conference
ISSN
ISBN
Citations 
1541-7026
978-1-5386-9504-3
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
A. Kruv100.34
A. Arreghini200.34
M.B. Gonzalez353.79
D. Verreck400.34
G. Van den bosch530.79
I. De Wolf6177.89
Arnaud Furnemont722.76