Towards Understanding Early Failures Behavior during Device Burn-In: Broadband RF Monitoring of Atomistic Changes in Materials
Yaw S. Obeng, Chukwudi A. Okoro, Papa K. Amoah, Victor H. Vartanian
In this paper, we attempt to understand the physico-chemical changes that occur in devices during device burn-in. We discuss the use of low frequency dielectric spectroscopy to detect, characterize and monitor changes in electrical defects present in the dielectrics of through silicon vias (TSV) for three dimensional (3D) interconnected integrated circuit devices, as the devices are subjected to fluctuating thermal loads. The observed changes in the electrical characteristics of the interconnects were traceable to changes in the chemistry of the isolation dielectric used in the TSV construction. The observed changes provide phenomenological insights into the practice of burn-in. The data also suggest that these chemical defects inherent in the as-manufactured products may be responsible for some of the unexplained early reliability failures observed in TSV enabled 3D devices.
, Okoro, C.
, Amoah, P.
and Vartanian, V.
Towards Understanding Early Failures Behavior during Device Burn-In: Broadband RF Monitoring of Atomistic Changes in Materials, ECS Journal of Solid State Science and Technology, [online], https://doi.org/10.1149/2.0411609jss
(Accessed December 6, 2022)