MULTI-PITCH SCATTEROMETRY TARGETS

Patent №

US 8,024,676

Granted

2011-09-20

Filed 2009

Owner

TOKYO ELECTRON LIMITED

Lab

AI components

2

vision · planning

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

12371193

The invention can provide a method of processing a substrate using multi-pitch scatterometry targets (M-PSTs) for de-convolving lithographic process parameters during Single-Patterning (S-P), Double-Patterning (D-P) procedures, and Double-Exposure (D-E) procedures used to control transistor structures. The M-PSTs) can have critical dimension (CD) and sidewall angle (SWA) sensitivity to exposure focus variations, exposure dose variations, and post exposure bake (PEB) temperature variations. In addition, the variation can be de-convolved so that the individual measurement process variable contributor can be identified.

VisionPlanningG03F 7/70625G03F 1/44G03F 7/70641

AI classification

Vision0.68
Planning0.64
Machine learning0.04
AI hardware0.03
Natural language0.02
Evolutionary computation0.00
Knowledge representation0.00
Speech0.00

Ownership

TOKYO ELECTRON LIMITED

assignment · 222570245

Assignors

CARCASI, MICHAEL A., DIXON, DAVID

On an employer assignment, the assignors are typically the inventors.

From the same owner

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