PATENT CLAIM ANALYSIS

Application Number: 15780886
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["204", "298150"]

Abstract:
The present invention provides a technique for performing film formation at low cost without causing a short-circuit between sputtered films formed on opposite surfaces of a film-formation target substrate. According to the present invention, in a substrate-holder conveyance mechanism  3,  a substrate holder  11  is conveyed by a first conveyance portion so that the substrate holder  11  passes through a first film formation region; film formation is performed by sputtering on a first surface of a film-formation target substrate  50  held by the substrate holder  11;  the substrate holder  11  is conveyed from the first conveyance portion to a second conveyance portion in such a manner as to make a turn with the up/down orientation of the substrate holder  11  maintained; the substrate holder  11  is conveyed by the second conveyance portion in a direction opposite to the direction of conveyance by the first conveyance portion so that the substrate holder  11  passes through a second film formation region; and film formation is performed by sputtering on a second surface of the film-formation target substrate  50.  The substrate holder  11  has openings  14  and  15  through which first and second surfaces of the film-formation target substrate  50  are exposed, and includes a shield portion  16  for shielding an edge portion of the film-formation target substrate  50  from a film formation material supplied from a second sputtering source.

Claim (Index 1):
A film formation apparatus, comprising:\n a vacuum chamber in which a single vacuum atmosphere is to be formed; a first film formation region provided in the vacuum chamber, the first film formation region including a first sputtering source for performing film formation on a first surface of a film-formation target substrate; a second film formation region provided in the vacuum chamber, the second film formation region including a second sputtering source for performing film formation on a second surface of the film-formation target substrate; a conveyance path formed to have a single annular shape when projected onto a vertical plane, and provided to pass through the first and second film formation regions; and a substrate-holder conveyance mechanism configured to convey, along the conveyance path, a substrate holder holding a film-formation target substrate in a horizontal position, wherein the substrate-holder conveyance mechanism includes: a first conveyance portion configured to convey the substrate holder in a predetermined direction so that the substrate holder passes through the first film formation region; a second conveyance portion configured to convey the substrate holder in a direction opposite to the direction of conveyance by the first conveyance portion so that the substrate holder passes through the second film formation region; and a turning conveyance portion configured to convey the substrate holder from the first conveyance portion to the second conveyance portion in such a manner as to make a turn while maintaining an up/down orientation of the substrate holder, and the substrate holder has openings through which the first and second surfaces of the film-formation target substrate are exposed, and includes a shield portion configured to shield an edge portion of the film-formation target substrate from a film formation material supplied from at least one of the first and second sputtering sources.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 94.0
- Lexical Diversity: 2.82143
- Patent Class: 204.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10896046', '09498375', '15168898', '14556608', '14577076']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7873741626275391
- 35 USC 102 Novelty (BERT): 0.4686701741290795
- Combined Prediction Score: 0.7555037637776932
- Mean Citation Score: 204.98245000000003
- Max Citation Score: 216.87325
- Similarity Product: 184.45356615322825

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