PATENT CLAIM ANALYSIS

Application Number: 16048020
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["438", "795000"]

Abstract:
Pressure in a chamber receiving a semiconductor wafer is reduced to a level less than atmospheric pressure. The semiconductor wafer is subjected to heat treatment in a reduced-pressure atmosphere by being irradiated with a flash of light. A leak determination part determines that a leak occurs at the chamber if pressure in the chamber does not reach target pressure while a time period passed since start of reduction of pressure in the chamber exceeds a threshold set in advance. A leak at the chamber is detected by monitoring a time period passed since start of reduction of pressure in the chamber. This makes it possible to determine the presence or absence of a leak at the chamber with a simple structure without requiring installation of a new hardware structure.

Claim (Index 7):
A heat treatment method for heating a substrate by irradiating the substrate with light, comprising the steps of:\n (a) housing said substrate in a chamber having a quartz window; (b) reducing pressure in said chamber to a level less than atmospheric pressure; and (c) irradiating said substrate housed in said chamber with light emitted from a light irradiation part through said quartz window, wherein if a time period required for pressure in said chamber to reach atmospheric pressure since start of supply of inert gas to said chamber reduced to predetermined pressure is less than a threshold set in advance, a leak is determined to occur at said chamber.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 95.0
- Lexical Diversity: 1.88732
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15648634', '15907245', '15882271', '15638068', '15070147']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8692807577845453
- 35 USC 102 Novelty (BERT): 0.4977977627928994
- Combined Prediction Score: 0.8321324582853807
- Mean Citation Score: 260.9851239999999
- Max Citation Score: 271.64792
- Similarity Product: 219.99394855775355

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