Matthew Edward Kenyon, Age 531509 Scenic Dr, Pasadena, CA 91103

6516281, Feb 4, 2003

Dec 10, 1999

09/458666

Frederick C. Wellstood - Lanham MD
Matthew Edward Kenyon - Hyattsville MD
Christopher J. Lobb - Washington DC

University of Maryland - College Park MD

G01R 33035

702130, 324248, 324250

A system, method, and computer program product are provided for scanning objects such as computer chips. A near-field scanning Single Electron Transistor (SET) is used to detect features of the object. In particular, the SET detects variations in an electric field surrounding or emanating from the object. The variation in the field may be associated with an irregularity in the object, such as an open in the circuitry of a chip. In the case of a chip or a multi-chip module, a voltage is applied to the line containing the suspected open. If an actual open is present, the open will be manifested in an irregularity in the electric field associated with the line. The SET detects the irregularity in the field. For the SET to operate, a sufficiently cold operating temperature is maintained for the SET. A very low (cryogenic) temperature allows the use of a larger, more sensitive SET.

2021013, May 6, 2021

Oct 28, 2020

17/083165

- Pasadena CA, US
Matthew E. KENYON - Pasadena CA, US
Jordana BLACKSBERG - La Canada CA, US
Carol A RAYMOND - Pasadena CA, US
Bethany L. EHLMANN - Pasadena CA, US
Xiangwen CHEN - Pasadena CA, US

G01J 3/28
G01J 3/02
G01J 3/18
G01J 5/12
B64G 1/66
G02B 23/06

Methods and devices to implement mid-wave and long-wave infrared point spectrometers are disclosed. The described methods and devices involve bi-faceted gratings, high-operating-temperature barrier infrared and thermal detectors. The disclosed concept can be used to design flight spectrometers that cover broad solar reflectance plus thermal emission spectral ranges with a compact and low-cost instrument suitable for small spacecraft reconnaissance of asteroids, the Moon, and planetary satellites as well as mass-constrained landed missions.