PATENT CLAIM ANALYSIS

Application Number: 15921643
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["257", "409000"]

Abstract:
A semiconductor integrated circuit includes a first conduction-type semiconductor region, a second conduction-type first impurity region, and a guard ring formed using a first conduction-type second impurity region so as to form a protection device of an electrostatic protection circuit. The first impurity region is formed inside the semiconductor region to have a rectangular planar structure with long and short sides. The guard ring is formed inside the semiconductor region to surround the periphery of the first impurity region. A weak spot is formed on the short side of the rectangular planar structure of the first impurity region. A plurality of electrical contacts are formed in a first portion of the guard ring which faces the long side of the rectangle. A plurality of electrical contracts are not formed in a second portion of the guard ring which faces the weak spot formed on the short side of the rectangle.

Claim (Index 46):
A semiconductor integrated circuit having an electrostatic protection circuit, comprising:\n a first semiconductor region of a first conductivity type; a first impurity region of a second conductivity type inside the first semiconductor region in plan view, the second conductivity type being opposite to the first conductivity type; and a guard ring formed by a second impurity region of the first conductivity type and formed inside the first semiconductor region in plan view to surround the periphery of the first impurity region, wherein the first impurity region is formed as a rectangular plan structure having a pair of long sides and a pair of short sides, first electrical contacts are formed in first portions of the guard ring which face the long sides of the rectangular plan structure, second portions of the guard ring having no electrical contacts, and which are portions of the second impurity region, respectively face the two short sides of the rectangular plan structure, the guard ring has third portions, which are portions of the second impurity region adjacent to one of the second portions and extending in a direction of a corresponding short side of the plan rectangular structure, a second electrical contact is formed in one of the third portions, a third electrical contact, a fourth electrical contact adjacent to the third electrical contact, and a fifth electrical contact adjacent to the fourth electrical contact are formed in the other of the third portions, the second electrical contact and the third electrical contact are adjacent to each other across the one second portion, and a distance between the second and third electrical contacts is larger than a distance between the third and fourth electrical contacts.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 2.82143
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13557923', '12710762', '10698633', '11396192', '11624656']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9174389891025304
- 35 USC 102 Novelty (BERT): 0.5969031598505665
- Combined Prediction Score: 0.885385406177334
- Mean Citation Score: 306.52335000000005
- Max Citation Score: 508.83057
- Similarity Product: 488.84570825133386

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