Zobrazeno 1 - 10
of 10
pro vyhledávání: '"W. F. Kho"'
Publikováno v:
2017 IEEE 24th International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
In this paper, a method to detect shorts at the gates of the storage node of a 6T SRAM bit cell via atomic force probing (AFP) at the Via 1 level is discussed. This method is useful for the preservation of physical evidence as well as to ease the pro
Publikováno v:
2017 IEEE 24th International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
Ultrasonic cleaner is a workhorse in all failure analysis labs for residue removal after decapsulation or etching. In this paper, we present a novel method of ultrasonic decapsulation, where acid mixture was used in conjunction with ultrasonic agitat
Autor:
Jethro Tan, W. F. Kho
Publikováno v:
2017 IEEE 24th International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
In situ lift out is a mature and well established technique for TEM sample preparation [1]. There are occasions though, when lift out fails, and the TEM lamella falls into the TEM trench during sample preparation. In a previous study [2], the lamella
Autor:
Gary H.G. Chan, W. F. Kho
Publikováno v:
International Symposium for Testing and Failure Analysis.
Contamination by particles is one of the major causes of failures in integrated circuits. In some cases, particles may absorb moisture leading to electrochemical migration, dendrite growth, and electrical leakage and short failures. This work present
Publikováno v:
2016 IEEE 23rd International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
Under non-optimized wafer probe and wire bonding conditions, pad cratering/interlevel dielectric (ILD) cracks may result in an electrical failure. The conventional procedures to analyse these failures include fault localization, optical inspection, S
Publikováno v:
2016 IEEE 23rd International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
Occurrences of failure recovery in the course of failure analysis work are not uncommon. Despite this, successful identification of the failure mechanism is still possible in some cases based on available data up to the point of failure recovery, cir
Autor:
Gary H. G. Chan, W. F. Kho
Publikováno v:
2015 IEEE 22nd International Symposium on the Physical and Failure Analysis of Integrated Circuits.
Copper dendrites on a flip chip die was analysed by SEM/EDX, FIB and TEM. The dendrites were found to consist of two layers. The upper layer visible under optical and SEM inspection consist of a carbon rich copper compound. TEM analysis revealed anot
Autor:
Rachel Siew, W. F. Kho
Publikováno v:
Proceedings of the 21th International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
Publikováno v:
Proceedings of the 20th IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
High fall out due to EEPROM failures were encountered during qualification of a device. All failures exhibit several random bits of EEPROM that cannot be erased. The root cause of the failure was due to out diffusion of phosphorus dopant under the fl
Publikováno v:
2012 19th IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits.
In analysis of copper wire moisture related reliability failures long hours are spent on the FIB tool. Two techniques are introduced to reduce the long analysis time: 1) An alternative FIB trenching method that reduces milling duration by 5X and, 2)