Semiconductor memory device and method for manufacturing same
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United States of America Patent
Stats
-
Jan 9, 2018
Issued Date -
N/A
app pub date -
Jul 14, 2016
filing date -
Feb 9, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A semiconductor memory device according to one embodiment includes a stacked body, a semiconductor pillar and a plurality of charge storage films. The stacked body includes a plurality of electrode films and air gaps. The plurality of electrode films are disposed to be separated from each other along a first direction. Each of the air gaps is made between the electrode films. The semiconductor pillar extends in the first direction and pierces the stacked body. The plurality of charge storage films are provided between the semiconductor pillar and the plurality of electrode films. The plurality of charge storage films are partitioned every electrode film.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- H01L Class
- 27971 Applications Filed
- 23507 Patents Issued To-Date
- 84.05 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- H01L Class
- 23.71 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 9, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 9, 2029 |
