Three-dimensional hot spot localization
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United States of America Patent
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Apr 26, 2016
Grant Date -
Nov 27, 2014
app pub date -
Jun 2, 2014
filing date -
Jun 8, 2010
priority date (Note) -
In Force
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Abstract
A non-destructive approach for the 3D localization of buried hot spots in electronic device architectures by use of Lock-in Thermography (LIT). The 3D analysis is based on the principles of thermal wave propagation through different material layers and the resulting phase shift/thermal time delay. With more complex multi level stacked die architectures it is necessary to acquire multiple LIT results at different excitation frequencies for precise hot spot depth localization. Additionally, the use of multiple time-resolved thermal waveforms, measured in a minimized field of view on top of the hot spot location, can be used to speed up the data acquisition. The shape of the resulting waveforms can be analyzed to further increase the detection accuracy and confidence level.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E V | HANSASTRASSE 27C MÜNCHEN 80686 | |
DCG SYSTEMS INC | 45900 NORTHPORT LOOP EAST FREMONT CA 94538 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Altmann, Frank | Halle, DE | 5 | 39 |
# of filed Patents : 5 Total Citations : 39 | |||
Deslandes, Herve | Sunnyvale, US | 12 | 64 |
# of filed Patents : 12 Total Citations : 64 | |||
Schlangen, Rudolf | San Francisco, US | 7 | 53 |
# of filed Patents : 7 Total Citations : 53 | |||
Schmidt, Christian | Halle, DE | 142 | 944 |
# of filed Patents : 142 Total Citations : 944 |
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Maintenance Fees
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 26, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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Date | Code | Event | Description |
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Dec 27, 2023 | AS | ASSIGNMENT | free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:MITSUBISHI ENGINEERING-PLASTICS CORPORATION;REEL/FRAME:066278/0901 Owner name: GLOBAL POLYACETAL CO., LTD., JAPAN Effective Date: Dec 27, 2023 |
Jun 09, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Dec 26, 2017 | I | Issuance | |
Dec 06, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 17, 2016 | P | Published | |
Jul 19, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OSHIMA, MAKIKO;FUJIMOTO, KUNIHIKO;NAGAI, MASAYUKI;AND OTHERS;SIGNING DATES FROM 20160627 TO 20160630;REEL/FRAME:039185/0952 Owner name: MITSUBISHI ENGINEERING-PLASTICS CORPORATION, JAPAN |
Jan 27, 2015 | F | Filing | |
Jan 28, 2014 | PD | Priority Date |

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