Planar magnetic sensor comprising a SQUID made of superconductin

Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Tunneling through region of reduced conductivity

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

257 30, 257 33, 438 2, 324248, 505162, H01L 2906

Patent

active

059862807

ABSTRACT:
A magnetic sensor comprises a SQUID made of a superconducting thin film. The superconducting thin film has a washer pattern and a terminal portion. The washer pattern has a non-square one hole pattern and a pair of slit patterns. The hole pattern has rectangle shape and includes the center of the washer pattern. The slit patterns having a straight shape growing parallel to the long side of the hole pattern, from the outside edge of the washer pattern toward the inside of the washer pattern. This outside edge of the washer pattern is the nearest to the hole pattern. There is an artificial grain boundary in the domain that spacing between the hole pattern and the slit pattern is narrowest. There is no artificial grain boundary in the other domain at all.

REFERENCES:
patent: 4801882 (1989-01-01), Daalmans
patent: 5438036 (1995-08-01), Matsuura et al.
Properties of YBa.sub.2 Cu.sub.3 O.sub.7-y Large Washer SQUID, Tanaka et al, Japanese J. Appl. Phys., vol. 32 (1993), pp. 662-664.
Low Noise YBa.sub.2 Cu.sub.3 O.sub.7-.delta. Grain Boundary Junction dc SQUIDs, Gross et al, Appl. Phys. Lett. 57 (7), Aug. 13, 1990, pp. 727-729.
dc SQUID Magnetometers From Single Layers of YBa.sub.2 Cu.sub.3 O.sub.7-x Koelle et al, Appl. Phys. Lett. 63 (16), Oct. 18, 1993, pp. 2271-2273.
YBa.sub.2 Cu.sub.3 O.sub.x Flip-Chip SQUID Magnetometer, Roas et al, Advances in Superconductivity VI, Springer-Verlag, pp. 1119-1122.
Low Noise YBa.sub.2 Cu.sub.3 O.sub.7-x -SrTiO.sub.3 -YBa.sub.2 Cu.sub.3 O.sub.7-x Multilayers for Improved Superconducting Magnetometers, Ludwig et al, Appl. Phys. Lett. 66 (3), Jan. 16, 1995, pp. 373-375.
Low-Noise YBa.sub.2 Cu.sub.3 O.sub.7 -PrBa.sub.2 Cu.sub.3 O.sub.7 Multiturn Flux Transformers, Keene et al, Appl. Phys. Lett. 64 (3), Jan. 17, 1994, pp. 366-368.
Effect of Thermal Noise on the Characteristics of a High T.sub.c Superconducting Quantum Interference Device, Enpuku et al, J. Appl. Phys. 73 (11), Jun. 1, 1993, pp. 7929-7934.
Knappe et al, Cryogenics, vol. 32, No. 10, "A Planar YBa.sub.2 Cu.sub.3 O.sub.7 Gradiometer at 77 K," pp. 881-884, (Jan. 1992).
Zhang et al, Applied Physics Letters, vol. 60, No. 18, "Microwave RF SQUID Integrated into a Planar YBa.sub.2 Cu.sub.3 O.sub.7 Resonator," pp. 2303-2305 (May 1992).
Ludwig et al, Applied Superconductivity, vol. 3, No. 7/10, "Multilayer Magnetometers Based on High-T.sub.c SQUIDS," pp. 383-398 (Jul. 1995).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Planar magnetic sensor comprising a SQUID made of superconductin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Planar magnetic sensor comprising a SQUID made of superconductin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planar magnetic sensor comprising a SQUID made of superconductin will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1327751

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.