scholarly journals Two-step controllable electrochemical etching of tungsten scanning probe microscopy tips

2012 ◽  
Vol 83 (6) ◽  
pp. 063708 ◽  
Author(s):  
Yasser Khan ◽  
Hisham Al-Falih ◽  
Yaping Zhang ◽  
Tien Khee Ng ◽  
Boon S. Ooi
2021 ◽  
Vol 92 (1) ◽  
pp. 015124
Author(s):  
Jiawei Zhang ◽  
Pinyuan Wang ◽  
Xuao Zhang ◽  
Haoran Ji ◽  
Jiawei Luo ◽  
...  

2013 ◽  
Vol 1539 ◽  
Author(s):  
M. Letilly ◽  
K. Skorupska ◽  
M. Aggour ◽  
M. Kanis ◽  
H.-J. Lewerenz

ABSTRACTAnodic oxide formation and chemical and electrochemical etching of n-Si(111) have been investigated in alkaline media. Due to the complexity of the processes, the investigation has been restricted to the initial phase where a transitory anodic photocurrent peak is observed slightly positive from the open circuit potential (ocp). In-system photoelectron spectroscopy, performed at the U 49/2 beamline at Bessy, shows sub-monolayer silicon surface oxidation and remnant H-termination, indicating island-type oxide formation. Scanning probe microscopy shows the formation of macropores with 300-500 nm diameter and an average depth of 5-8 nm. The discussion comprises chemical and electrochemical dissolution mechanisms and routes to development of nanoemitter fuel generating devices.


Author(s):  
Kevin M. Shakesheff ◽  
Martyn C. Davies ◽  
Clive J. Roberts ◽  
Saul J. B. Tendler ◽  
Philip M. Williams

Author(s):  
Benedict Drevniok ◽  
St. John Dixon-Warren ◽  
Oskar Amster ◽  
Stuart L Friedman ◽  
Yongliang Yang

Abstract Scanning microwave impedance microscopy was used to analyze a CMOS image sensor sample to reveal details of the dopant profiling in planar and cross-sectional samples. Sitespecific capacitance-voltage spectroscopy was performed on different regions of the samples.


Author(s):  
Swaminathan Subramanian ◽  
Khiem Ly ◽  
Tony Chrastecky

Abstract Visualization of dopant related anomalies in integrated circuits is extremely challenging. Cleaving of the die may not be possible in practical failure analysis situations that require extensive electrical fault isolation, where the failing die can be submitted of scanning probe microscopy analysis in various states such as partially depackaged die, backside thinned die, and so on. In advanced technologies, the circuit orientation in the wafer may not align with preferred crystallographic direction for cleaving the silicon or other substrates. In order to overcome these issues, a focused ion beam lift-out based approach for site-specific cross-section sample preparation is developed in this work. A directional mechanical polishing procedure to produce smooth damage-free surface for junction profiling is also implemented. Two failure analysis applications of the sample preparation method to visualize junction anomalies using scanning microwave microscopy are also discussed.


Sign in / Sign up

Export Citation Format

Share Document