PATENT CLAIM ANALYSIS

Application Number: 15900804
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["451", "442000"]

Abstract:
In a wafer chuck design featuring pins or “mesas” making up the support surface, engineering the pins to have an annular shape, or to contain holes or pits, minimizes sticking of the wafer, and improves wafer settling. In another aspect of the invention is a tool and method for imparting or restoring flatness and roughness to a surface, such as the support surface of a wafer chuck. The tool is shaped such that the contact to the surface being treated is a circle or annulus. The treatment method may take place in a dedicated apparatus, or in-situ in semiconductor fabrication apparatus. The tool is smaller than the diameter of the wafer pin chuck, and may be approximate to the spatial frequency of the high spots to be lapped. The movement of the tool relative to the support surface is such that all areas of the support surface may be processed by the tool, or only those areas needing correction.

Claim (Index 52):
The tool of  claim 51 , wherein said attachment means of minimal constraint comprises a ball-and-socket joint.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 88.0
- Lexical Diversity: 2.05882
- Patent Class: 451.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15062168', '15683747', '15660307', '12454336', '15294950']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7561967653668801
- 35 USC 102 Novelty (BERT): 0.51750844558055
- Combined Prediction Score: 0.7323279333882471
- Mean Citation Score: 242.15747
- Max Citation Score: 362.22064
- Similarity Product: 221.10835979362489

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