Improving Yield Using Scan and DFT Based Analysis for High Performance PowerPC© Microprocessor

2006 ◽  
Author(s):  
Ray Talacka ◽  
Nandu Tendolkar ◽  
Cynthia Paquette
Keyword(s):  
High Performance ◽  
Yield Enhancement ◽  
Test Time ◽  
Balance Test ◽  
Specific Test ◽  
Defect Location ◽  
Test Methodology ◽  
Memory Arrays ◽  
Scan Chain ◽  
Scan Pattern

Abstract The use of memory arrays to drive yield enhancement has driven the development of many technologies. The uniformity of the arrays allows for easy testing and defect location. Unfortunately, the complexities of the logic circuitry are not represented well in the memory arrays. As technologies push to smaller geometries and the layout and timing of the logic circuitry become more problematic the ability to address yield issue is becoming critical. This paper presents the added yield enhancement capabilities of using e600 core Scan Chain and Scan Pattern testing for logic debug, ways to interpret the fail data, and test methodologies to balance test time and acquiring data. Selecting a specific test methodology and using today's advanced tools like Freescale's DFT/FA has been proven to find more yield issues, earlier, enabling quicker issue resolution.

Timing Sensitivity Analysis of Logical Nodes in Scan Design Integrated Circuits by Pulsed Diode Laser Stimulation

2008 ◽  
Author(s):  
T. Kiyan ◽  
C. Boit ◽  
C. Brillert
Keyword(s):  
Laser Pulse ◽  
Integrated Circuits ◽  
Continuous Wave ◽  
Fault Injection ◽  
Scan Design ◽  
Flip Flop ◽  
Laser Stimulation ◽  
Scan Chain ◽  
P Type ◽  
Scan Pattern

Abstract In this paper, a methodology based upon laser stimulation and a comparison of continuous wave and pulsed laser operation will be presented that localizes the fault relevant sites in a fully functional scan chain cell. The technique uses a laser incident from the backside to inject soft faults into internal nodes of a master-slave scan flip-flop in consequence of localized photocurrent. Depending on the illuminated type of the transistors (n- or p-type), injection of a logic ‘0’ or ‘1’ into the master or the slave stage of a flip-flop takes place. The laser pulse is externally triggered and can easily be shifted to various time slots in reference to clock and scan pattern. This feature of the laser diode allows triggering the laser pulse on the rising or the falling edge of the clock. Therefore, it is possible to choose the stage of the flip-flop in which the fault injection should occur. It is also demonstrated that the technique is able to identify the most sensitive signal condition for fault injection with a better time resolution than the pulse width of the laser, a significant improvement for failure analysis of integrated circuits.

Frost Formation and its Density Behavior on Various Surfaces

2001 ◽  
Author(s):  
Cheolhwan Kim ◽  
Jongmin Shin ◽  
Alexei V. Tikhonov ◽  
Samchul Ha ◽  
Bongjun Choi
Keyword(s):  
Surface Energy ◽  
Dynamic Contact ◽  
Contact Angles ◽  
Test Time ◽  
Test Results ◽  
Plate Temperature ◽  
Specific Test ◽  
Frost Formation ◽  
Frost Layer ◽  
Density Behavior

Abstract An experimental study has been conducted to investigate the effects of surface energy on frost formation. Test samples with three different surfaces of which Dynamic Contact Angles (DCA) are 23, 55 and 88 degrees are installed in a wind tunnel and exposed to a humid airflow. The thickness and the mass of frost layer are measured and used to calculate frost density while frost formation is visualized simultaneously with their measurements. Results show that frost density increases as time increases at specific test conditions. The air Reynolds number, the airflow humidity and the cold plate temperature are maintained at 12,000, 0.0042 kg/kg and −20 degrees Celsius, respectively. The surface with a lower DCA shows a higher frost density for a two-hour test, but no differences in frost density have been found after two hours of frost generation. Empirical correlations for thickness, mass and density are proposed as the functions of test time and surface energy. Visualization of frost generation was in good agreements with test results.

scholarly journals Izometric effort in the balance stance of handball throw

2017 ◽  
Vol 10 (19) ◽  
pp. 97-102
Author(s):  
Alexandru Andrei Gherman ◽  
Leon Gomboș ◽  
Adrian Pătrașcu ◽  
Sergiu Pop
Keyword(s):  
Postural Balance ◽  
High Performance ◽  
Statistical Difference ◽  
Small Scale ◽  
Balance Test ◽  
Male And Female ◽  
Significant Statistical Difference ◽  
Isometric Effort ◽  
Before And After ◽  
Strong Relation

Abstract Postural balance plays an important role in high performance sports. The line between success and failure may be decided at such a small scale. In handball, postural balance may affect the accuracy of every technique that a played use, especially the throwing of the ball towards the goal. Our study aimed to identify the degree of influence that izometric effort has over the balance stance during a handball throw. Subjects: 210 1st year students from the Faculty of Physical Education and Sport, Babeș-Bolyai University from Cluj-Napoca, were involved in this study. The subjects were both male and female, with the ages between 18 and 21 years old, with and without former performance athlete background. Materials: We’ve conducted the balance test using the AMTI NETforce BP 400600 force platform and the actual isometric exercises were completed in the same laboratory. Two types of planks and a half-squat were used as the isometric exercises. Results: There was no significant statistical difference between the balance variables before and after isometric exercises while holding the ball in hand. There was a significant statistical difference between the displacement before and after for the position without the ball. Conclusion: There is no impact of the isometric effort over the balance stance while holding the handball ball in the throwing position. We’ve identified a strong relation between the isometric effort and the balance stance without the ball in hand.

Preparation and Characterization of Lithium Orthosilicate Ceramic Pebbles by Melt Spraying Method

2016 ◽  
Vol 697 ◽  
pp. 818-821 ◽  
Author(s):  
You Wen Zhai ◽  
Jin Hu ◽  
Xiao Qin Zhu ◽  
Kai Jun Wang ◽  
Wei Jun Zhang
Keyword(s):  
Phase Composition ◽  
High Performance ◽  
Low Cost ◽  
Test Analysis ◽  
Crushing Strength ◽  
Test Methodology ◽  
The Mean ◽  
Lithium Orthosilicate ◽  
Spraying Method

This paper studied the experimental procedures,, test equipment and test methodology of the melt spraying method. Meanwhile, according to performance index of lithium orthosilicate (Li4SiO4) ceramic pebbles to optimize the melt spraying method. Test analysis of the diameter of orthosilicate pebbles, degree of spheroid of orthosilicate pebbles, surface topography of orthosilicate pebbles, metallographic structure of orthosilicate pebbles, section morphology, crushing strength and phase composition. Results in this work indicate that the lithium orthosilicate (Li4SiO4) ceramic pebbles with a flat or even surface，porous internals, diameter of orthosilicate pebbles between 0.9~1.1mm,density of orthosilicate pebbles more than 90%T.D., the mean crushing strength is 25N, the degree of roundness is 1.027 can be obtained by the optimized melt spraying method. The optimization process provides a basis for obtaining the low cost and high performance of the lithium orthosilicate (Li4SiO4) ceramic pebbles.

scholarly journals Compressive and Flexural Strength Property Enhancement for Fibre Reinforced Standard Concrete (FRSC), High Strength Concrete (FRHSC) and High Performance Concrete (FRHPC) using Foundry Sand (FS) and Crushed Concrete Waste (CCW)

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Pruthviraj S R ◽  
Ravi Kumar C M ◽  
Yajnodbhavi H M ◽  
Maruthi T ◽  
Raghavendra S
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
High Performance ◽  
High Performance Concrete ◽  
Research Work ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Specific Test ◽  
Foundry Sand ◽  
Crushed Concrete

Now days, many research works are carried for all grades of concrete to make the concrete most economical and durable there by adding the supplementary cementitious materials and alternative replacement aggregates. In this research work deals with the experimental investigation of mechanical properties of the M30, M50 and M80 grade concrete by replacing the fine and coarse aggregate by foundry sand and crushed concrete waste respectively. Mix design procedures were followed as per IRC44:2017 guidelines and recommendation. Proper dosage of super plasticizer (SP) was maintained in the concrete to make it better performed. In this present investigation, a Poly Propylene fibre (PPF) of 0.3% by weight of the cement is used. Mechanical properties such as Compressive strength and Flexural Strength were determined by preparing the respective mould sizes for specific test and are cured for 7, 14 and 28 days and result obtained for respective days were tabulated and discussed.  

Sign in / Sign up

Export Citation Format

Share Document