PATENT CLAIM ANALYSIS

Application Number: 15950201
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["438", "001000"]

Abstract:
The semiconductor device has insulating films  40, 42  formed over a substrate  10 ; an interconnection  58  buried in at least a surface side of the insulating films  40, 42 ; insulating films  60, 62  formed on the insulating film  42  and including a hole-shaped via-hole  60  and a groove-shaped via-hole  66 a  having a pattern bent at a right angle; and buried conductors  70, 72 a  buried in the hole-shaped via-hole  60  and the groove-shaped via-hole  66 a . A groove-shaped via-hole  66 a  is formed to have a width which is smaller than a width of the hole-shaped via-hole  66 . Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.

Claim (Index 11):
A semiconductor device, comprising:\n a rectangular semiconductor substrate that includes four corners; a first interconnection formed above the rectangular semiconductor substrate; a second interconnection formed above the first interconnection; a third interconnection formed above the second interconnection; a fourth interconnection formed above the third interconnection; a fifth interconnection formed above the fourth interconnection; and a guard ring that includes a plurality of first groove-shaped vias formed above the first interconnection and below the second interconnection, a plurality of second groove-shaped vias formed above the second interconnection and below the third interconnection, a plurality of third groove-shaped vias formed above the third interconnection and below the fourth interconnection, and a plurality of fourth groove-shaped vias formed above the fourth interconnection and below the fifth interconnection, wherein: the plurality of first groove-shaped vias are connected to the first interconnection; the plurality of first groove-shaped vias are integral with the second interconnection; each of the plurality of first groove-shaped vias includes a first pattern bent twice each time at an inner angle of larger than 90 degrees at each of the four corners in a plan view and bent totally at 90 degrees at each of the four corners in a plan view; the plurality of second groove-shaped vias are connected to the second interconnection; the plurality of second groove-shaped vias are integral with the third interconnection; each of the plurality of second groove-shaped vias includes a second pattern bent twice each time at an inner angle of larger than 90 degrees at each of the four corners in a plan view and bent totally at 90 degrees at each of the four corners in a plan view; the plurality of third groove-shaped vias are connected to the third interconnection; the plurality of third groove-shaped vias are integral with the fourth interconnection; each of the plurality of third groove-shaped vias includes a third pattern bent twice each time at an inner angle of larger than 90 degrees at each of the four corners in a plan view and bent totally at 90 degrees at each of the four corners in a plan view; the plurality of fourth groove-shaped vias are connected to the fourth interconnection; the plurality of fourth groove-shaped vias are integral with the fifth interconnection; each of the plurality of fourth groove-shaped vias includes a fourth pattern bent twice each time at an inner angle of larger than 90 degrees at each of the four corners in a plan view and bent totally at 90 degrees at each of the four corners in a plan view; the first interconnection includes copper; the first groove-shaped vias include copper; the second interconnection includes copper; the second groove-shaped vias include copper; the third interconnection includes copper; the third groove-shaped vias include copper; the fourth interconnection includes copper; the fourth groove-shaped vias include copper; and the fifth interconnection includes copper.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 91.0
- Lexical Diversity: 2.10811
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14312867', '15291593', '13548911', '14304186', '14304139']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9016274115116414
- 35 USC 102 Novelty (BERT): 0.5517439222068761
- Combined Prediction Score: 0.866639062581165
- Mean Citation Score: 436.840574
- Max Citation Score: 443.86325
- Similarity Product: 322.80371977037186

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