Package for semiconductor devices
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United States of America Patent
Stats
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Apr 13, 2010
Grant Date -
Feb 21, 2008
app pub date -
Aug 28, 2007
filing date -
May 30, 2003
priority date (Note) -
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Abstract
To prevent or alleviate the occurrence of stress in the junction portion between the semiconductor element and the semiconductor package for mounting the semiconductor element, so that cracks will not occur even when there is mounted a semiconductor element having a low strength. A package for semiconductor devices is formed as a laminate of many layers including a plurality of conducting layers and insulating resin layers that are alternately laminated one upon the other and having, on one surface of the laminate, a portion for mounting a semiconductor element. The whole region or some region(s) of the insulating resin layers of the laminate, including at least the portion for mounting the semiconductor element and the peripheries thereof, are constituted by a prepreg obtained by impregnating a woven fabric of a liquid crystal polymer with an insulating resin.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- SHINKO ELECTRIC INDUSTRIES CO., LTD.
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kodaira, Tadashi | Nagano, JP | 16 | 203 |
Matsumoto, Shunichiro | Nagano, JP | 29 | 287 |
Nakamura, Jyunichi | Nagano, JP | 9 | 152 |
Ooi, Kazuhiko | Nagano, JP | 6 | 88 |
Watari, Eisaku | Nagano, JP | 4 | 28 |
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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 |
---|---|---|---|
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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