PATENT CLAIM ANALYSIS

Application Number: 16069914
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["257", "077000"]

Abstract:
A method for manufacturing a compound semiconductor device includes: providing a semiconductor substrate including a foundation layer having a first conductivity type; forming a deep trench in the foundation layer; and forming a deep layer having a second conductivity type by introducing material gas of the compound semiconductor while introducing dopant gas into an epitaxial growth equipment to cause epitaxial growth of the deep layer in the deep trench. A period in which a temperature in the epitaxial growth equipment is increased to a temperature of the epitaxial growth of the deep layer is defined as a temperature increasing period. In the forming the deep layer, the deep layer is further formed in a bottom corner portion of the deep trench by starting the introducing of the dopant gas during the temperature increasing period and starting the introducing of the material gas after the temperature increasing period.

Claim (Index 2):
A method for manufacturing a compound semiconductor device, the method comprising:\n providing a semiconductor substrate that includes a foundation layer having a first conductivity type and formed of a compound semiconductor; forming a deep trench in the foundation layer; and forming a deep layer that has a second conductivity type by introducing material gas of the compound semiconductor while introducing dopant gas including a second conductivity type dopant into an epitaxial growth equipment to cause epitaxial growth of the deep layer in the deep trench, wherein a period in which a temperature in the epitaxial growth equipment is increased to a temperature of the epitaxial growth of the deep layer is defined as a temperature increasing period, and in the forming the deep layer, the deep layer is further formed in a bottom corner portion of the deep trench by:\n starting the introducing of the dopant gas including the second conductivity type dopant during the temperature increasing period; and \n starting the introducing of the material gas during the temperature increasing period after the introducing of the second conductivity type dopant gas.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 95.0
- Lexical Diversity: 2.56667
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16069927', '16069622', '16070061', '14387425', '15297261']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9256831177229242
- 35 USC 102 Novelty (BERT): 0.5311922650112478
- Combined Prediction Score: 0.8862340324517566
- Mean Citation Score: 310.667586
- Max Citation Score: 368.48938
- Similarity Product: 330.0543481282233

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