PATENT CLAIM ANALYSIS

Application Number: 15876184
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["327", "432000"]

Abstract:
An IGBT die structure includes an auxiliary P well region. A terminal, that is not connected to any other IGBT terminal, is coupled to the auxiliary P well region. To accelerate IGBT turn on, a current is injected into the terminal during the turn on time. The injected current causes charge carriers to be injected into the N drift layer of the IGBT, thereby reducing turn on time. To accelerate IGBT turn off, charge carriers are removed from the N drift layer by drawing current out of the terminal. To reduce V CE(SAT) , current can also be injected into the terminal during IGBT on time. An IGBT assembly involves the IGBT die structure and an associated current injection/extraction circuit. As appropriate, the circuit injects or extracts current from the terminal depending on whether the IGBT is in a turn on time or is in a turn off time.

Claim (Index 26):
The method of  claim 25 , wherein during turn off of the IGBT an emitter current flows through an emitter terminal of the IGBT die structure, and wherein during turn off of the IGBT the emitter current changes by approximately twice in magnitude as compared to a change in auxiliary current flowing through the terminal coupled to the auxiliary P type well region of the IGBT.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.27397
- Patent Class: 327.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13662395', '13662384', '14864317', '14840322', '14931426']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8437031467224541
- 35 USC 102 Novelty (BERT): 0.5580836209485771
- Combined Prediction Score: 0.8151411941450664
- Mean Citation Score: 408.798482
- Max Citation Score: 502.13318
- Similarity Product: 313.9114731341195

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