PATENT CLAIM ANALYSIS

Application Number: 15901778
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["250", "281000"]

Abstract:
Provided herein are approaches for reducing particles in an ion implanter. An electrostatic filter may include a housing and a plurality of conductive beam optics within the housing. The conductive beam optics are arranged around an ion beam-line directed towards a wafer, and may include entrance aperture electrodes proximate an entrance aperture of the housing. The conductive beam optics may further include energetic electrodes downstream along the ion beam-line from the entrance aperture electrodes, and ground electrodes downstream from the energetic electrodes. The energetic electrodes are positioned farther away from the ion beam-line than the entrance electrodes and the ground electrodes, thus causing the energetic electrodes to be physically blocked from impact by an envelope of back-sputter material returning from the wafer. The electrostatic filter may further include an electrical system for independently delivering a voltage and a current to each of the conductive beam optics.

Claim (Index 16):
An ion implantation system, comprising:\n an electrostatic filter for delivering an ion beam to a wafer, the electrostatic filter comprising:\n a housing having an exit proximate the wafer; and \n a plurality of conductive beam optics within the housing, the plurality of conductive beam optics arranged around an ion beam-line, and the plurality of conductive beam optics comprising:\n a set of entrance aperture electrodes proximate an entrance aperture of the housing; \n a set of energetic electrodes downstream along the ion beam-line from the set of entrance aperture electrodes; and \n a set of ground electrodes downstream along the ion beam-line of the set of energetic electrodes, wherein the set of energetic electrodes is positioned farther away from the ion beam-line than the set of entrance aperture electrodes and the set of ground electrodes, wherein at least one of the plurality of conductive beam optics includes an internal heating element, and wherein the internal heating element comprises a heating lamp surrounded by a hollow shell; and \n \n an electrical system in communication with the electrostatic filter, the electrical system configured to supply a voltage and a current to the plurality of conductive beam optics.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 88.0
- Lexical Diversity: 2.27941
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14820747', '15427336', '14811097', '10170512', '12642161']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7175811229620328
- 35 USC 102 Novelty (BERT): 0.4872384182926486
- Combined Prediction Score: 0.6945468524950944
- Mean Citation Score: 214.331484
- Max Citation Score: 230.4439
- Similarity Product: 171.84759324946404

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