PATENT CLAIM ANALYSIS

Application Number: 16147277
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-06
Patent Classification: ["250", "492300"]

Abstract:
A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.

Claim (Index 14):
An apparatus for discharging an extreme ultraviolet (EUV) mask when the EUV mask is inspected by a charged particle beam inspection system, wherein the EUV mask comprises a reflective pattern layer and one or more conductive layers, the system comprising:\n a grounding pin electrically coupled to an electrical ground, wherein the grounding pin is configured to contact the EUV mask when the EUV mask is inspected; and a movable support structure onto which the grounding pin is attached, wherein the movable support structure is configured to:\n move to a first position to enable the grounding pin to contact the EUV mask, and \n move to a second position to enable the grounding pin to be separated from the EUV mask.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 2.07937
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15339421', '14575102', '14796565', '15339496', '14755626']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7900696577650674
- 35 USC 102 Novelty (BERT): 0.5671626094707657
- Combined Prediction Score: 0.7677789529356374
- Mean Citation Score: 449.850754
- Max Citation Score: 475.35745
- Similarity Product: 404.1885696827204

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test