PATENT CLAIM ANALYSIS

Application Number: 15984610
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["257", "595000"]

Abstract:
A stacked semiconductor structure includes a first substrate. A multilayer interconnect is disposed over the first substrate. Metal sections are disposed over the multilayer interconnect. First bonding features are over the metal sections. A second substrate has a front surface. A cavity extends from the front surface into a depth D in the second substrate. A movable structure is disposed over the front surface of the second substrate and suspending over the cavity. The movable structure includes a dielectric membrane, metal units over the dielectric membrane and a cap dielectric layer over the metal units. Second bonding features are over the cap dielectric layer and bonded to the first bonding features. The second bonding features extend through the cap dielectric layer and electrically coupled to the metal units.

Claim (Index 1):
A method of forming a stacked semiconductor structure, the method comprising:\n forming a multilayer interconnect over at least one transistor of a first substrate, wherein the multilayer interconnect is electrically coupled to the at least one transistor; forming metal sections over the multilayer interconnect; forming first bonding features over portions of metal sections; forming a flexible dielectric membrane over a front surface of a second substrate; forming metal units over the flexible dielectric membrane; forming a cap dielectric layer over the metal units and the flexible dielectric membrane; etching portions of the cap dielectric layer to expose the metal units; forming second bonding features over the cap dielectric layer and contacting the metal units; etching portions of the cap dielectric layer and the flexible dielectric membrane, thereby forming through-holes to expose portions of the second substrate; etching a portion of the second substrate through the through-holes to form a cavity in the second substrate under the flexible dielectric membrane, thereby forming a movable structure from a portion of the flexible dielectric membrane, the metal units, and the cap dielectric layer, the movable structure suspending over the cavity; and bonding the first bonding features to the second bonding features.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 2.72549
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13916148', '13916197', '13906080', '14798213', '15003332']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9225797436029648
- 35 USC 102 Novelty (BERT): 0.5115630124620169
- Combined Prediction Score: 0.8814780704888701
- Mean Citation Score: 271.842256
- Max Citation Score: 312.4093299999999
- Similarity Product: 255.4917717882412

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test