PATENT CLAIM ANALYSIS

Application Number: 15879613
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["430", "005000"]

Abstract:
A glass substrate for a mask blank includes a rectangular-shaped main surface on which a film having a circuit pattern is to be formed. The main surface includes a quadrangular peripheral frame and a square-shaped center area defined by excluding the frame. The center area has a longitudinal length of 142 mm and a lateral length of 142 mm. A surface morphology of the center area is expressed by the following formulas. A flatness of a sum of compositing all of a kl P k (x)P l (y) is less than or equal to 20 nm when a sum of k and l is greater than or equal to 3 and less than or equal to 9. The flatness is less than or equal to 20 nm when a sum of k and l is greater than or equal to 10 and less than or equal to 30. { z  ( x , y ) = ∑ k = 0 N 1   ∑ l = 0 N 2   a kl  P k  ( x )  P l  ( y ) P k  ( x ) = 1 2 k  k !  d k dx k  [ ( x 2 - 1 ) k ] P l  ( y ) = 1 2 i  l !  d l dy l  [ ( y 2 - 1 ) l ]

Claim (Index 23):
The mask blank as claimed in  claim 20 ,\n wherein the film is a low reflection film, wherein the mask blank further comprises:\n a reflection film that reflects light, provided between the glass substrate and the low reflection film; and \n an absorbing film that absorbs the light, provided between the reflection film and the low reflection film, and \n wherein the low reflection film reflects an inspection light of the circuit pattern to be formed on the absorbing film, with reflectivity lower than reflectivity of the absorbing film.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 86.0
- Lexical Diversity: 2.90909
- Patent Class: 430.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15274141', '10401770', '11114002', '12536966', '13241691']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7777373975421203
- 35 USC 102 Novelty (BERT): 0.5724305668500593
- Combined Prediction Score: 0.7572067144729143
- Mean Citation Score: 269.75176600000003
- Max Citation Score: 509.87933
- Similarity Product: 377.0760283988678

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

Dataset: test