PATENT CLAIM ANALYSIS

Application Number: 15775289
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["118", "708000"]

Abstract:
A height detection apparatus successively changes the brightness of white light from a first level to a second level in accordance with a position of a Z stage and captures an image of interference light while moving a two-beam interference objective lens relative to a paste film in an optical axis direction, detects, as a focus position, a position of the Z stage where the intensity of interference light is highest in a period during which the brightness of white light is set to the first or second level, for each pixel of the captured image, and obtains the height of the paste film based on a detection result.

Claim (Index 1):
A height detection apparatus configured to detect a height of a target object, comprising:\n a light source configured to emit white light; a two-beam interference objective lens configured to divide white light emitted from the light source into two light beams, apply one of the two light beams to the target object and the other light beam to a reference surface, and cause interference between reflected light from the target object and reflected light from the reference surface to obtain interference light; an imaging device configured to capture an image of interference light obtained by the two-beam interference objective lens; a Z stage configured to move the two-beam interference objective lens relative to the target object in an optical axis direction; and a control device configured to control the light source, the imaging device, and the Z stage to obtain a height of the target object, the control device being configured to:\n successively change brightness of the white light in first to K-th levels in accordance with a position of the Z stage and capture an image of the interference light, while moving the two-beam interference objective lens relative to the target object in the optical axis direction; \n detect, as a focus position, a position of the Z stage where intensity of the interference light is highest in a period during which the brightness of the white light is set to the k-th level, for each pixel of the captured image; and \n obtain the height of the target object, based on a detection result, where K is an integer equal to or greater than two, and k is any integer from 1 to K.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 93.0
- Lexical Diversity: 1.88525
- Patent Class: 118.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13670133', '11591563', '12218745', '15498577', '14795289']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.804724009837592
- 35 USC 102 Novelty (BERT): 0.460823560982924
- Combined Prediction Score: 0.7703339649521251
- Mean Citation Score: 154.85809
- Max Citation Score: 157.83192
- Similarity Product: 123.37096765191076

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