PATENT CLAIM ANALYSIS

Application Number: 16107806
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["372", "045010"]

Abstract:
A vertical cavity surface emitting laser includes: a supporting base: and a post including an upper distributed Bragg reflecting region, an active layer, and a lower distributed Bragg reflecting region. The upper distributed Bragg reflecting region, the active layer, and the lower distributed Bragg reflecting region are arranged on the supporting base. The lower distributed Bragg reflecting region includes first semiconductor layers and second semiconductor layers alternately arranged. The first semiconductor layers each have a refractive index lower than that of each of the second semiconductor layers. The upper distributed Bragg reflecting region includes first layers and second layers alternately arranged. The first layers each have a group III-V compound semiconductor portion and a group III oxide portion. The group III-V compound semiconductor portion contains aluminum as a group III constituent element, and the group III oxide portion surrounds the group III-V compound semiconductor portion.

Claim (Index 5):
A method for fabricating a vertical cavity surface emitting laser comprising:\n preparing an epitaxial substrate, the epitaxial substrate including a lower semiconductor laminate for a lower distributed Bragg reflecting region, a semiconductor laminate for an active layer, and an upper semiconductor laminate for an upper distributed Bragg reflecting region; forming a mask on the epitaxial substrate, the mask having a pattern defining a post for the vertical cavity surface emitting laser; etching the upper semiconductor laminate and the semiconductor laminate of the epitaxial substrate with the mask to form a substrate product, and the substrate product having an upper part of the post; exposing the upper part of the substrate product to an oxidizing atmosphere; and after exposing the upper part of the substrate product to the oxidizing atmosphere, etching the lower semiconductor laminate to form a lower part of the post, the upper semiconductor laminate having a semiconductor layer of III-V compound semiconductor containing aluminum as a group III constituent element, the semiconductor layer reaching a side of the post, exposing the upper part of the substrate product to an oxidizing atmosphere including producing a current confining structure from the semiconductor layer, and the current confining structure having an insulating portion and a current aperture portion of the III-V compound semiconductor.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 96.0
- Lexical Diversity: 2.94444
- Patent Class: 372.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12437753', '12149605', '13176921', '11338220', '15459839']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8312665088198585
- 35 USC 102 Novelty (BERT): 0.5314256933954752
- Combined Prediction Score: 0.8012824272774203
- Mean Citation Score: 305.29704
- Max Citation Score: 355.49954
- Similarity Product: 265.4856387130809

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