Quality assurance

News and Updates

Are Condition Monitoring Systems Worth It? NIST Researchers Offer Way to Evaluate

December 1, 2022

Industries may use "condition monitoring systems" (CMS) to monitor machines and enterprises – like production lines – for detrimental or unexpected changes in

Entering a New Phase: NIST Technique Simultaneously Locates Multiple Defects on Microchip Circuits

November 3, 2022

Defective computer chips are the bane of the semiconductor industry. Even a seemingly minor flaw in a chip packed with billions of electrical connections might

No Fib: NIST Unmasks a Superfast Process for Nanoscale Machining

August 23, 2022

Cutting intricate patterns as small as several billionths of a meter deep and wide, the focused ion beam (FIB) is an essential tool for deconstructing and

Projects and Programs

Digital Thread for Manufacturing

Ongoing

The Digital Thread for Manufacturing project will deliver methods, protocols, and tools for developing, conformance testing, increasing user-awareness, and

Additive Manufacturing Part Qualification

Ongoing

Critical parts for defense, aerospace, and medical applications must be formally qualified prior to use. Currently, extensive empirical testing consisting of

AM Machine and Process Control Methods for Additive Manufacturing

Ongoing

Part quality in additive manufacturing (AM) is highly dependent on the process control, but there is a lack of adequate AM control methods and standards. In

Data Integration and Management for Additive Manufacturing

Ongoing

AM data is essential for establishing part traceability, understanding AM processes and making decisions during the product development lifecycle. The curation

Publications

Sensitivity of acoustic nonlinearity and loss to residual porosity in additively manufactured aluminum

January 21, 2023

Author(s)

Ward L. Johnson, Jake Benzing, Orion Kafka, Newell Moser, Derek Harris, Jeremy Iten, Nik Hrabe

Acoustic nonlinearity and loss are found to be positively correlated with porosity at industrially relevant levels of less than half a percent in commercially

Cannabis Quality Assurance Program: Exercise 2 Toxic Elements Final Report

December 15, 2022

Author(s)

Chuck Barber, Colleen E. Bryan Sallee, Carolyn Burdette, Shaun Kotoski, Melissa M. Phillips, Walter Brent Wilson, Laura Wood

In 2020, NIST launched CannaQAP to improve the comparability of the analytical measurements of cannabis and cannabis-derived products in forensic and cannabis

Towards the Physical Reliability of 3D-Integrated Systems: Broadband Dielectric Spectroscopic (BDS) Studies of Material Evolution and Reliability in Integrated Systems

September 30, 2022

Author(s)

Papa Amoah, Joseph J. Kopanski, Yaw S. Obeng, Christopher Sunday, Chukwudi Okoro, Lin You, Dmirty Veksler

In this paper, we present an overview of our current research focus in developing non-destructive metrology for monitoring reliability issues in 3D-integrated

Models for an Ultraviolet-C Research and Development Consortium

March 25, 2022

Author(s)

Dianne L. Poster, C Cameron Miller, Yaw S. Obeng, John J. Kasianowicz, Michael T. Postek, Norman Horn, Troy Cowan, Richard Martinello

The development of an international, precompetitive, collaborative, ultraviolet (UV) research consortium is discussed as an opportunity to lay the groundwork