Neutron detection using GD-loaded oxide and nitride heterojunction diodes
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United States of America Patent
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Oct 14, 2014
Grant Date -
Jan 10, 2013
app pub date -
Jul 5, 2012
filing date -
Jul 7, 2011
priority date (Note) -
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Abstract
Solid state neutron detection utilizing gadolinium as a neutron absorber is described. The new class of narrow-gap neutron-absorbing semiconducting materials, including Gd-doped HfO2, Gd-doped EuO, Gd-doped GaN, Gd2O3 and GdN are included in three types of device structures: (1) a p-n heterostructure diode with a ˜30 μm Gd-loaded semiconductor grown on a conventional semiconductor (Si or B-doped Si); (2) a p-n junction or a p-i-n trilayer diode with a Gd-loaded semiconductoron one side and single-crystal semiconducting Li2B4O7 layer on the other side of the heterojunction; and (3) a p-n junction or a p-i-n trilayer diode with a Gd-loaded semiconductoron on one side and a boron nitride (BN) semiconductor layer on the other side of the heterojunction.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
QUANTUM DEVICES LLC | 11616 LAKE POTOMAC DRIVE POTOMAC MD 20854 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Dowben, Peter A | Crete, US | 24 | 424 |
# of filed Patents : 24 Total Citations : 424 | |||
Tang, Jinke | Laramie, US | 5 | 115 |
# of filed Patents : 5 Total Citations : 115 | |||
Wisbey, David | Lafayette, US | 1 | 6 |
# of filed Patents : 1 Total Citations : 6 |
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- 1 Citation Count
- H01L Class
- 7.09 % this patent is cited more than
- 11 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 14, 2026 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Legal Events
Date | Code | Event | Description |
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Nov 21, 2022 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Nov 21, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 14, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 14, 2022 |
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Apr 03, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551) year of fee payment: 4 |
Oct 14, 2014 | I | Issuance | |
Sep 24, 2014 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 29, 2014 | AS | ASSIGNMENT | free format text: CONFIRMATORY LICENSE;ASSIGNOR:QUANTUM DEVICES, LLC;REEL/FRAME:032076/0911 Owner name: DEFENSE THREAT REDUCTION AGENCY; DEPT. OF DEFENSE; Effective Date: Jan 29, 2014 |
Jan 10, 2013 | P | Published | |
Aug 10, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DOWBEN, PETER A;TANG, JINKE;WISBEY, DAVID;SIGNING DATES FROM 20120703 TO 20120705;REEL/FRAME:028762/0257 Owner name: QUANTUM DEVICES, LLC, MARYLAND |
Jul 05, 2012 | F | Filing | |
Jul 07, 2011 | PD | Priority Date |

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