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 3):
A heat treatment apparatus for heating a substrate by irradiating the substrate with light, comprising:\n a chamber having a quartz window and for receiving a substrate therein; a light irradiation part for irradiating said substrate housed in said chamber with light through said quartz window; an exhaust part for exhausting an atmosphere in said chamber; a gas supply part for supplying predetermined treatment gas to said chamber; a manometer for measuring pressure in said chamber; and a leak determination part for determining that a leak occurs at said chamber if a time period required for a measured value obtained by said manometer to reach atmospheric pressure since start of supply of inert gas from said gas supply part to said chamber reduced to predetermined pressure is less than a threshold set in advance.

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): 0.8692912111546017
- 35 USC 102 Novelty (BERT): 0.4976815548216429
- Combined Prediction Score: 0.8321302455213059
- Mean Citation Score: 260.9851239999999
- Max Citation Score: 271.64792
- Similarity Product: 220.39922124647617

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

Dataset: test