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Evaluating EUV mask pattern imaging with two EUV microscopes (open access)

Evaluating EUV mask pattern imaging with two EUV microscopes

Aerial image measurement plays a key role in the development of patterned reticles for each generation of lithography. Studying the field transmitted (reflected) from EUV masks provides detailed information about potential disruptions caused by mask defects, and the performance of defect repair strategies, without the complications of photoresist imaging. Furthermore, by measuring the continuously varying intensity distribution instead of a thresholded, binary resist image, aerial image measurement can be used as feedback to improve mask and lithography system modeling methods. Interest in EUV, at-wavelength, aerial image measurement lead to the creation of several research tools worldwide. These tools are used in advanced mask development work, and in the evaluation of the need for commercial at-wavelength inspection tools. They describe performance measurements of two such tools, inspecting the same EUV mask in a series of benchmarking tests that includes brightfield and darkfield patterns. One tool is the SEMATECH Berkeley Actinic Inspection Tool (AIT) operating on a bending magnet beamline at Lawrence Berkeley National Laboratory's Advanced Light Source. The AIT features an EUV Fresnel zoneplate microscope that emulates the numerical aperture of a 0.25-NA stepper, and projects the aerial image directly onto a CCD camera, with 700x magnification. The second tool is …
Date: February 26, 2008
Creator: Goldberg, Kenneth A.; Takase, Kei; Naulleau, Patrick P.; Han, Hakseung; Barty, Anton; Kinoshita, Hiroo et al.
Object Type: Article
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, February 26, 2008 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, February 26, 2008

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: February 26, 2008
Creator: Wilson, Chris
Object Type: Newspaper
System: The Gateway to Oklahoma History
Federal Employees: Human Resources Management Flexibilities in Emergency Situations (open access)

Federal Employees: Human Resources Management Flexibilities in Emergency Situations

This report discusses guidance from the Office of Personnel Management (OPM) on the various human resources (HR) flexibilities available to federal departments and agencies to facilitate management in emergency situations.
Date: February 26, 2008
Creator: Schwemle, Barbara L.
Object Type: Report
System: The UNT Digital Library
Federal Workers' Compensation: Better Data and Management Strategies Would Strengthen Efforts to Prevent and Address Improper Payments (open access)

Federal Workers' Compensation: Better Data and Management Strategies Would Strengthen Efforts to Prevent and Address Improper Payments

A letter report issued by the Government Accountability Office with an abstract that begins "In fiscal year 2006, the Federal Employees' Compensation Act (FECA) program paid over $1.8 billion in wage loss compensation to federal employees who were unable to work after being injured on the job. Under the Comptroller General's authority to conduct evaluations on his own initiative, GAO examined (1) how effectively the Department of Labor's (Labor) Office of Workers' Compensation Programs (OWCP) manages the risk of improper FECA compensation payments; (2) what vulnerabilities to improper payments, if any, exist in OWCP's procedures for making FECA wage loss payments; and (3) how well OWCP ensures the recovery of identified FECA overpayments. To address these issues, GAO reviewed OWCP documents, analyzed data obtained from OWCP, reviewed a random and projectable sample of FECA claims files, visited five OWCP district offices, and interviewed OWCP headquarters and district officials."
Date: February 26, 2008
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Grassroots Lobbying: Constitutionality of Disclosure Requirements (open access)

Grassroots Lobbying: Constitutionality of Disclosure Requirements

This report discusses the constitutional issues that may arise with respect to a federal law that would require disclosures of efforts to stimulate so-called "grassroots" lobbying activities by those entities and persons who are are compensated to engage in such activities.
Date: February 26, 2008
Creator: Maskell, Jack
Object Type: Report
System: The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 39, No. 37, Ed. 1 Tuesday, February 26, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 37, Ed. 1 Tuesday, February 26, 2008

Free weekly newspaper that includes business and classified advertising.
Date: February 26, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 38, Ed. 1 Tuesday, February 26, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 38, Ed. 1 Tuesday, February 26, 2008

Free weekly newspaper that includes business and classified advertising.
Date: February 26, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Guam: U.S. Defense Deployments (open access)

Guam: U.S. Defense Deployments

This report mainly discusses about the U.S. Defense Deployments on Guam. The U.S military is building up forces on he U.S territory of Guam to maintain deterrence and war fighting capabilities for possible reason to disaster.
Date: February 26, 2008
Creator: Kan, Shirley A. & Niksch, Larry A.
Object Type: Report
System: The UNT Digital Library

Guest Artist Recital: 2008-02-26 - Trio Amsterdam

Access: Use of this item is restricted to the UNT Community
Guest artist and faculty recital presented at the UNT College of Music Winspear Performance Hall.
Date: February 26, 2008
Creator: Egarr, Richard, 1963-; Mitchell, Mimi & Wentz, Jed
Object Type: Sound
System: The UNT Digital Library
Helen's Itinerary (open access)

Helen's Itinerary

Helen Snapp's itinerary, compiled by David A. Stallman, which includes the contact information for Helen, David, and Brian Moffett, the addresses for a museum and Holiday Inn #68088282. and Delta flight information.
Date: February 26, 2008
Creator: Stallman, David A.
Object Type: Text
System: The Portal to Texas History
House Rules Governing Committee Markup Procedures (open access)

House Rules Governing Committee Markup Procedures

This report provides an overview of the markup procedures on the house rules governing committee. The rules of the house provides general guidance to committees for conducting meetings to markup legislation.
Date: February 26, 2008
Creator: Schneider, Judy
Object Type: Report
System: The UNT Digital Library
Israel: Background and Relations with the United States (open access)

Israel: Background and Relations with the United States

None
Date: February 26, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The Judgment Fund: Status of Reimbursements Required by the No FEAR Act and Contract Disputes Act (open access)

The Judgment Fund: Status of Reimbursements Required by the No FEAR Act and Contract Disputes Act

Correspondence issued by the Government Accountability Office with an abstract that begins "The Notification and Federal Employee Antidiscrimination and Retaliation (No FEAR) Act of 2002 has, since October 1, 2003, required federal agencies to reimburse the Judgment Fund for payments made to claimants to cover judgments, awards, and settlements in equal employment opportunity (EEO) and whistleblower cases. As we previously reported in 2004, the reimbursement provision of the No FEAR Act was intended to make agencies more accountable for their violations of employment discrimination and whistleblower protection laws brought against the agencies. Similarly, the Contract Disputes Act of 1978 (CDA) also has, since March 1, 1979, required agencies to reimburse the Judgment Fund for payments to claimants in cases involving federal contract disputes. The No FEAR Act mandated that we conduct a study of the payments, reimbursements, and effects of the reimbursement provisions of both No FEAR Act and CDA cases. In 1956, Congress established the Judgment Fund, which is a permanent, indefinite appropriation to pay judgments against federal agencies that are not otherwise provided for by other appropriations. In 1961, legislation was enacted allowing the Judgment Fund to pay, among other things, Department of Justice (DOJ) settlements of ongoing …
Date: February 26, 2008
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Modeled Neutron Induced Nuclear Reaction Cross Sections for Radiochemistry in the region of Iriduim and Gold (open access)

Modeled Neutron Induced Nuclear Reaction Cross Sections for Radiochemistry in the region of Iriduim and Gold

We have developed a set of modeled nuclear reaction cross sections for use in radiochemical diagnostics. Systematics for the input parameters required by the Hauser-Feshbach statistical model were developed and used to calculate neutron induced nuclear reaction cross sections for targets ranging from osmium (Z = 76) to gold (Z = 79). Of particular interest are the cross sections on Ir and Au including reactions on isomeric targets.
Date: February 26, 2008
Creator: Hoffman, R. D.; Dietrich, F. S.; Kelley, K.; Escher, J.; Bauer, R. & Mustafa, M. G.
Object Type: Report
System: The UNT Digital Library
Nanostructured Assemblies of Thermoelectric Composite Materials (open access)

Nanostructured Assemblies of Thermoelectric Composite Materials

At the end of the funding period (March 2003) for our program in ferroelectric oxide nanomaterials, we had 3 publications in print, one more had been submitted and two more were in preparation in peer-reviewed journals and invited symposia lectures had been given since starting the project in the Fall of 1999. We hired two postdoctoral fellows, Dr. Ki-Seog Chang and Dr. Wenzhong Wang. We have also trained two graduate students, Ms. Keri Williams and Ms. Bernadette Hernandez, and one undergraduate student (Mr. Michael Scancella).
Date: February 26, 2008
Creator: Dorhout, Peter K. & Fisher, Ellen R.
Object Type: Report
System: The UNT Digital Library
National Aeronautics and Space Administration: Overview, FY2009 Budget, and Issues for Congress (open access)

National Aeronautics and Space Administration: Overview, FY2009 Budget, and Issues for Congress

This report discusses the budget of the fiscal year of 2009 and the requests of the National Aeronautics and Space Administration.
Date: February 26, 2008
Creator: Morgan, Daniel & Behrens, Carl E.
Object Type: Report
System: The UNT Digital Library
The National Telecommunications and Information Administration (NTIA): Budget, Programs, and Issues (open access)

The National Telecommunications and Information Administration (NTIA): Budget, Programs, and Issues

None
Date: February 26, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Net Neutrality: Background and Issues (open access)

Net Neutrality: Background and Issues

None
Date: February 26, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library
North Texas Daily (Denton, Tex.), Vol. 91, No. 25, Ed. 1 Tuesday, February 26, 2008 (open access)

North Texas Daily (Denton, Tex.), Vol. 91, No. 25, Ed. 1 Tuesday, February 26, 2008

Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.
Date: February 26, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Nuclear reactions used for superheavy element research (open access)

Nuclear reactions used for superheavy element research

Some of the most fascinating questions about the limits of nuclear stability are confronted in the heaviest nuclei. How many more new elements can be synthesized? What are the nuclear and chemical properties of these exotic nuclei? Does the 'Island of Stability' exist and can we ever explore the isotopes inhabiting that nuclear region? This paper will focus on the current experimental research on the synthesis and characterization of superheavy nuclei with Z > 112 from the Dubna/Livermore collaboration. Reactions using 48Ca projectiles from the U400 cyclotron and actinide targets ({sup 233,238}U, {sup 237}Np, {sup 242,244}Pu, {sup 243}Am, {sup 245,248}Cm, {sup 249}Cf) have been investigated using the Dubna Gas Filled Recoil Separator in Dubna over the last 8 years. In addition, several experiments have been performed to investigate the chemical properties of some of the observed longer-lived isotopes produced in these reactions. Some comments will be made on nuclear reactions used for the production of the heaviest elements. A summary of the current status of the upper end of the chart of nuclides will be presented.
Date: February 26, 2008
Creator: Stoyer, M A
Object Type: Article
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 92, No. 107, Ed. 1 Tuesday, February 26, 2008 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 92, No. 107, Ed. 1 Tuesday, February 26, 2008

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: February 26, 2008
Creator: Zaman, Ashiq
Object Type: Newspaper
System: The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 116, No. 40, Ed. 1 Tuesday, February 26, 2008 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 116, No. 40, Ed. 1 Tuesday, February 26, 2008

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 26, 2008
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History

[Photograph of MAV members Derek Kerl and Patrick Partida]

Photograph of Men Against Violence members Derek Kerl and Patrick Partida standing next to each other, looking at the camera. They are both smiling.
Date: February 26, 2008
Creator: Ha, Khai
Object Type: Photograph
System: The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 120, No. 37, Ed. 1 Tuesday, February 26, 2008 (open access)

Rains County Leader (Emory, Tex.), Vol. 120, No. 37, Ed. 1 Tuesday, February 26, 2008

Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date: February 26, 2008
Creator: Hill, Earl Clyde, Jr.
Object Type: Newspaper
System: The Portal to Texas History