Defect discovery and recipe optimization for inspection of three-dimensional semiconductor structures

S Bhattacharyya, D Sharma, C Maher, B Hua… - US Patent …, 2021 - Google Patents
Methods and systems for discovery of defects of interest (DOI) buried within three
dimensional semiconductor struc tures and recipe optimization are described herein. The …

Three-dimensional imaging for semiconductor wafer inspection

P Kolchin, RM Danen, P Measor - US Patent 10,887,580, 2021 - Google Patents
Methods and systems for improved detection and classifi cation of defects of interest (DOI)
on semiconductor wafers based on three-dimensional images are described herein. Three …

System and method using OAM spectroscopy leveraging fractional orbital angular momentum as signature to detect materials

S Ashrafi, R Linquist - US Patent 9,500,586, 2016 - Google Patents
An apparatus that detects a material within a sample includes signal generation circuitry that
generates a first signal having at least one orbital angular momentum applied thereto and …

Method and apparatus for remote sensing using optical orbital angular momentum (OAM)-based spectroscopy for detecting lateral motion of a remote object

N Cvijetic, G Milione, E Ip, T Wang - US Patent 9,733,108, 2017 - Google Patents
US9733108B2 - Method and apparatus for remote sensing using optical orbital angular momentum
(OAM)-based spectroscopy for detecting lateral motion of a remote object - Google Patents …

Defect marking for semiconductor wafer inspection

D Shortt, S Lange, J Wei, D Kapp… - US Patent 10,082,470, 2018 - Google Patents
Methods and systems for accurately locating buried defects previously detected by an
inspection system are described herein. A physical mark is made on the surface of a wafer …

Phase filter for enhanced defect detection in multilayer structure

RM Danen, DG Starodub - US Patent 10,615,067, 2020 - Google Patents
Disclosed are methods and apparatus for facilitating defect detection in a multilayer stack.
The method includes selec tion of a set of structure parameters for modeling a particular …

System and method for multi-parameter spectroscopy

S Ashrafi - US Patent 11,002,677, 2021 - Google Patents
NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C (= O) C (NC (= O)
C (CCC (N)= O) NC (= O) C (CCC (O)= O) NC (= O) C (C (C) C) NC (= O) C (NC (= O) CN) C …

System and method using OAM spectroscopy leveraging fractional orbital angular momentum as signature to detect materials

S Ashrafi, R Linquist - US Patent 9,645,083, 2017 - Google Patents
An apparatus detects a material within a sample and includes signal generation circuitry that
generates a first light beam having at least one orbital angular momentum applied thereto …

Fast generalized multi-wavelength ellipsometer

AG Boosalis - US Patent 11,346,769, 2022 - Google Patents
An ellipsometer uses a broadband light source and a Fresnel cone to produce a
simultaneous broadband polarization state generator with no moving parts. The detector of …

Inspecting apparatus and laser processing apparatus

N Takeda, H Morikazu - US Patent 10,628,933, 2020 - Google Patents
Disclosed herein is an inspecting apparatus including an illuminating unit adapted to be
positioned in the periphery of a transparent member for illuminating the transparent member …