Semiconductor device with Cu metal-base and manufacturing method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 24, 2012
Issued Date -
N/A
app pub date -
Oct 10, 2004
filing date -
Oct 1, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
As a substrate for a semiconductor device, a metal substrate is used, and the metal substrate is composed of a metal base body made of a first metal and a connecting metal layer made of a second metal for covering the metal base body. The substrate has a structure wherein a diffusion preventing layer for preventing diffusion of the first metal is provided on the connecting metal layer.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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FOUNDATION FOR ADVANCEMENT OF INTERNATIONAL SCIENCE | 586-9 USHIGAFUCHI AKATSUKA TSUKUBA-CITY IBARAKI PREFECTURE 305-0062 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Morimoto, Akihiro | Miyagi, JP | 99 | 956 |
# of filed Patents : 99 Total Citations : 956 | |||
Ohmi, Tadahiro | Miyagi, JP | 798 | 14083 |
# of filed Patents : 798 Total Citations : 14083 |
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Patent Citation Ranking
- 7 Citation Count
- H01L Class
- 3.37 % this patent is cited more than
- 13 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Jan 09, 2017 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Dec 14, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Dec 14, 2016 |
Dec 14, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jul 22, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 23, 2012 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Jun 12, 2008 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 14, 2004 | I | Issuance | |
Apr 24, 2003 | P | Published | |
Nov 22, 2002 | F | Filing | |
Apr 07, 1999 | PD | Priority Date |

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