A survey of scan-capture power reduction techniques

With the advent of sub-nanometer geometries, integrated circuits (ICs) are required to be checked for newer defects. While scan-based architectures help detect these defects using newer fault models, test data inflation happens, increasing test time and test cost. An automatic test pattern generator (ATPG) exercise’s multiple fault sites simultaneously to reduce test data which causes elevated switching activity during the capture cycle. The switching activity results in an IR drop exceeding the devices under test (DUT) specification. An increase in IR-drop leads to failure of the patterns and may cause good DUTs to fail the test. The problem is severe during at-speed scan testing, which uses a functional rated clock with a high frequency for the capture operation. Researchers have proposed several techniques to reduce capture power. They used various methods, including the reduction of switching activity. This paper reviews the recently proposed techniques. The principle, algorithm, and architecture used in them are discussed, along with key advantages and limitations. In addition, it provides a classification of the techniques based on the method used and its application. The goal is to present a survey of the techniques and prepare a platform for future development in capture power reduction during scan testing

Quick Screening of Well Survivability in a Producing Reservoir

Imperial Users onl

Static Compaction of Test Sequences for Synchronous Sequential Circuits

Today, VLSI design has progressed to a stage where it needs to incorporate methods of testing circuits. The Automatic Test Pattern Generation (ATPG) is a very attractive method and feasible on almost any combinational and sequential circuit. Currently available automatic test pattern generators (ATPGs) generate test sets that may be excessively long. Because a cost of testing depends on the test length. compaction techniques have been used to reduce that length. The motivation for studying test compaction is twofold. Firstly, by reducing the test sequence length. the memory requirements during the test application and the test application time are reduced. Secondly, the extent of test compaction possible for deterministic test sequences indicates that test pattern generators spend a significant amount of time generating test vectors that are not necessary. The compacted test sequences provide a target for more efficient deterministic test generators. Two types of compaction techniques exist: dynamic and static. The dynamic test sequence compaction performs compaction concurrently with the test generation process and often requires modification of the test generator. The static test sequence compaction is done in a post-processing step to the test generation and is independent of the test generation algorithm and process. In the thesis, a new idea for static compaction of test sequences for synchronous sequential circuits has been proposed. Our new method - SUSEM (Set Up Sequence Elimination Method) uses the circuit state information to eliminate some setup sequences for the target faults and consequently reduce the test sequence length. The technique has been used for the test sequences generated by HITEC test generator. ISCAS89 benchmark circuits were used in our experiments, for some circuits which have a large number of target faults and relatively small number of flip-flops, the very significant compactions have been obtained. The more important is that this method can be used to improve the test generation procedure unlike most static compaction methods which blindly or randomly remove parts of test vectors and cannot be used to improve the test generators

1962

Turf on the Launching Pad (page 1) Turf management Club News (3) Education, Experience and Attitude (4) A Blade of Grass (5) Picture - Professor Lawrence S. Dickinson (6) Picture - Thomas Mascaro - Banquet Speaker (7) Planting Trees on the Golf Course (8) Two-Way Radios (8) Greens Mowing Procedure (9) Watering and Topdressing as Related to Poa annua Infestations (10) Picture - Stockbridge Majors in Turf Management (12) Picture - Graduates of Winter School for Turf Managers - 1962 (13) Review of Season\u27s Pests by Joseph Troll (A-1) Today\u27s Trends in Golf Course Development by Col. Harry C. Eckoff (A-3) Breeding and Selection of Fine Turf Grasses by Dr. B. R. Anderson Penncross Bentgrass by J. Dutch(A-13) Poa annua by Alexander Radko (A-16) Velvet Bent by Jesse DeFrance (A-19) Vegetative Creeping Bentgrasses by Fred Grau (A-21) Modification of SOils for Green Construction & Top Dressing by Prof. H. B. Musser (A-27) Soil COmpaction by Donald Waddington (A-32) Irrigation Practices and the Need of Basic Research by Prof. Edward PIra (A-36) Water Sources by Z. Mills (A-39) Athletic Field Maintenance by Thomas Mascaro (A-41) Planning the Landscape Around the House by Prof. Harold Mosher (A-43

The Use of Marine Sand in Bituminous Mix•

Over the past decade, dramatic increasing in truck traffic, heavier axle loads, various environmental impacts and higher tire pressure had contributed to severe pavement distortions. In Malaysia, permanent deformation (creep deformation) is a continuously pavement distortion problems which caused by effect of temperature, successive stresses, excessive high bitumen content from improper mix design and insufficient compaction during roadway construction. In bituminous mix, fine aggregate's recent trend is using mining sand. Comparison in term of performance towards creep deformation between marine sand and mining sand as fine aggregate are key purpose for the study. For experiments, aggregate gradation are done for coarse aggregate; granite, fine aggregate; marine sand and mining sand as "well as filler; ordinary Portland cement. It is to determine the percentages of material used for making Marshall Mix sample. After conducting Marshall Mix design, stability tests is conducted upon each of sample to determine the optimum bitumen content by plotting graph of stability, density and void in mineral aggregate versus binder content. Dynamic creep test is performed to compare the performance of both samples. The result revealed that marine sand reaching stages of failures is twice as much compared with mining sand. It proves that usage of marine sand in bituminous mix increased its resistance towards permanent deformation (creep deformation)

The Use of Marine Sand in Bituminous Mixer

Over the past decade, dramatic increasing in truck traffic, heavier axle loads, various environmental impacts and higher tire pressure had contributed to severe pavement distortions. In Malaysia, permanent deformation (creep deformation) is a continuously pavement distortion problems which caused by effect of temperature, successive stresses, excessive high bitumen content from improper mix design and insufficient compaction during roadway construction. In bituminous mix, fine aggregate's recent trend is using mining sand. Comparison in term of performance towards creep deformation between marine sand and mining sand as fine aggregate are key purpose for the study. For experiments, aggregate gradation are done for coarse aggregate; granite, fine aggregate; marine sand and mining sand as well as filler; ordinary Portland cement. It is to determine the percentages of material used for making Marshall Mix sample. After conducting Marshall Mix design, stability tests is conducted upon each of sample to determine the optimum bitumen content by plotting graph of stability, density and void in mineral aggregate versus binder content. Dynamic creep test is performed to compare the performance of both samples. The result revealed that marine sand reaching stages of failures is twice as much compared with mining sand. It proves that usage of marine sand in bituminous mix increased its resistance towards permanent deformation (creep deformation)

Block v. City of Lewiston Clerk\u27s Record v. 2 Dckt. 39685

https://digitalcommons.law.uidaho.edu/idaho_supreme_court_record_briefs/5070/thumbnail.jp