Comparison of classical and two-photon photoelectric laser stimulation capabilities for failure analysis

Author(s):  
K. Shao ◽  
V. Pouget ◽  
E. Faraud ◽  
C. Larue ◽  
D. Lewis
Author(s):  
V. Pouget ◽  
E. Faraud ◽  
K. Shao ◽  
S. Jonathas ◽  
D. Horain ◽  
...  

Abstract This paper presents the use of pulsed laser stimulation with picosecond and femtosecond laser pulses. We first discuss the resolution improvement that can be expected when using ultrashort laser pulses. Two case studies are then presented to illustrate the possibilities of the pulsed laser photoelectric stimulation in picosecond single-photon and femtosecond two-photon modes.


Author(s):  
Jonathan Shaw ◽  
Christopher McMahon ◽  
Yin Shyang Ng ◽  
Félix Beaudoi

Abstract This paper presents the use of Dynamic Laser Stimulation (DLS) and Time-Resolved DLS (TR-DLS) to provide fail site localization and complementary information on a failed embedded memory IC. In this study, an embedded dual port RAM within a 90nm IC that failed one of the Memory Built-In Self Tests (MBISTs) was investigated. This technique rapidly localized the failing area within the memory read/write circuitry. The TR-DLS provided maps for each operation of the MBIST pattern. With this information, the failure was clearly identified as a read operation failure. The TR-DLS technique also provided much refined site signature (down to just one net) within the sense amp of the Port B of the dual port RAM. This information provided very specific indication on how to improve the operation of that particular sense amp circuitry within the dual port RAM Memory.


2011 ◽  
Vol 51 (9-11) ◽  
pp. 1658-1661 ◽  
Author(s):  
R. Llido ◽  
J. Gomez ◽  
V. Goubier ◽  
N. Froidevaux ◽  
L. Dufayard ◽  
...  

Author(s):  
Felix Beaudoin ◽  
Satish Kodali ◽  
Rohan Deshpande ◽  
Wayne Zhao ◽  
Edmund Banghart ◽  
...  

Abstract Fault localization using both dynamic laser stimulation and emission microscopy was used to localize the failing transistors within the failing scan chain latch on multiple samples. Nanoprobing was then performed and the source to drain leakage in N-type FinFETs was identified. After extensive detailed characterization, it was concluded that the N-type dopant signal was likely due to projections from the source/drain regions included in the TEM lamella. Datamining identified the scan chain fail to be occurring uniquely for a specific family of tools used during source/drain implant diffusion activation. This paper discusses the processes involved in yield delta datamining of FinFET and its advantages over failure characterization, fault localization, nanoprobing, and physical failure analysis.


2008 ◽  
Vol 48 (8-9) ◽  
pp. 1529-1532 ◽  
Author(s):  
M. Sienkiewicz ◽  
P. Perdu ◽  
A. Firiti ◽  
K. Sanchez ◽  
O. Crepel ◽  
...  

Author(s):  
A. Firiti ◽  
D. Lewis ◽  
F. Beaudoin ◽  
P. Perdu ◽  
G. Haller ◽  
...  

Author(s):  
Steven J. Chun

Abstract A three dimensional (3-D) photon emission failure analysis method has been developed to pinpoint failure sites or emission sites on the x, y, and z planes of a degraded diode. The 3-D analysis consists of a cross-sectioning step process on two adjacent sides of a diode utilizing two photon emission sites from respective sides of the die as a map. This process negates the uncertainty and long processing times during cross-sectional analysis to find minute defects in diodes.


Author(s):  
N. Borrel ◽  
C. Champeix ◽  
M. Lisart ◽  
A. Sarafianos ◽  
E. Kussener ◽  
...  

Abstract This study is driven by the need to optimize failure analysis methodologies based on laser/silicon interactions inside an integrated circuit using a triple-well process. It is therefore mandatory to understand the behavior of elementary devices to laser illumination, in order to model and predict the behavior of more complex circuits. This paper presents measurements of the photoelectric currents induced by a pulsed laser on a triple-well Psubstrate/DeepNwell/Pwell structure dedicated to low power body biasing techniques. It reveals possible bipolar transistor activation at high laser power. This activation threshold revealed its dependence on laser power and wells biasing. Based on the measurements made during our experiments, an electrical model is proposed that makes it possible to simulate the effects induced by photoelectric laser stimulation.


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