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Inventor

William A. McGahan

Inventor
Spicewood, TX, US

Overview

8→
Patents
2002–2013
Patent span
Physics
Primary field (CPC G)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties36%
G01BMeasuring length, thickness or similar linear dimensions29%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices14%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light7%
G06FElectric digital data processing7%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h107%
PatentTitleYear
8,525,993'Scatterometry measurement of asymmetric structures'20138,170,838'Simulating two-dimensional periodic patterns using compressed fourier space'20127,372,565'Spectrometer measurement of diffracting structures'20087,202,958'Modeling a sample with an underlying complicated structure'20077,115,858'Apparatus and method for the measurement of diffracting structures'20066,898,537'Measurement of diffracting structures using one-half of the non-zero diffracted orders'20056,836,690'High precision substrate prealigner'20046,381,009'Elemental concentration measuring methods and instruments'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2013Patents assigned to NANOMETRICS INC (8)· patent assignee history
2002Based in San Jose, CA, US· patent location history
2004–2013Based in Spicewood, TX, US· patent location history
2012–2013Patents assigned to LI JIE (2)· patent assignee history
2012–2013Patents assigned to MCGAHAN WILLIAM A (2)· patent assignee history
2012–2013Patents assigned to RABELLO SILVIO J (2)· patent assignee history
2013Patents assigned to LIU YONGDONG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NANOMETRICS INC82002–2013
LI JIE22012–2013
MCGAHAN WILLIAM Aself22012–2013
RABELLO SILVIO J22012–2013
LIU YONGDONG12013
Locations
LocationPatentsSpan
Spicewood, Texas, US72004–2013
San Jose, California, US12002