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Found results for
patents
1.
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Method for manufacturing semiconductor module
Application Number |
12926304 |
Grant Number |
07985630 |
Status |
In Force |
Filing Date |
2010-11-09 |
First Publication Date |
2011-03-10 |
Grant Date |
2011-07-26 |
Owner |
Fuji Electric Device Technology Co., Ltd. (Japan)
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Inventor |
- Horio, Masafumi
- Nishizawa, Tatsuo
- Mochizuki, Eiji
- Maruyama, Rikihiro
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Abstract
A method for manufacturing a semiconductor module, includes the steps of preparing a board; mounting a semiconductor device on the second metal foil; placing a resin case onto the board for surrounding a first metal foil, an insulating sheet, the second metal foil, and the semiconductor device; pouring a resin in a paste form into the case to fill a space relative to the first metal foil, insulating sheet, the second metal foil and the semiconductor device; and heat-curing the resin. A bottom end of a peripheral wall of the case is located above a bottom surface of the first metal. The bottom surface of the first metal foil and the resin form a flat bottom surface to contact an external mounting member.
IPC Classes ?
- H01L 21/00 - Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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2.
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Semiconductor device having insulated gate semiconductor element, and insulated gate bipolar transistor
Application Number |
12320497 |
Grant Number |
07977704 |
Status |
In Force |
Filing Date |
2009-01-27 |
First Publication Date |
2009-07-30 |
Grant Date |
2011-07-12 |
Owner |
- Denso Corporation (Japan)
- Fuji Electric Device Technology Co., Ltd. (Japan)
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Inventor |
- Koyama, Masaki
- Okabe, Yoshifumi
- Asai, Makoto
- Fujii, Takeshi
- Yoshikawa, Koh
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Abstract
A semiconductor device having an IGBT includes: a substrate; a drift layer and a base layer on the substrate; trenches penetrating the base layer to divide the base layer into base parts; an emitter region in one base part; a gate element in the trenches; an emitter electrode; and a collector electrode. The one base part provides a channel layer, and another base part provides a float layer having no emitter region. The gate element includes a gate electrode next to the channel layer and a dummy gate electrode next to the float layer. The float layer includes a first float layer adjacent to the channel layer and a second float layer apart from the channel layer. The dummy gate electrode and the first float layer are coupled with a first float wiring on the base layer. The dummy gate electrode is isolated from the second float layer.
IPC Classes ?
- H01L 29/739 - Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field effect
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3.
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Perpendicular magnetic recording medium and the method of manufacturing the same
Application Number |
11255579 |
Grant Number |
07993764 |
Status |
In Force |
Filing Date |
2005-10-21 |
First Publication Date |
2006-05-04 |
Grant Date |
2011-08-09 |
Owner |
Fuji Electric Device Technology Co., Ltd. (Japan)
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Inventor |
- Takenoiri, Shunji
- Sakai, Yasushi
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Abstract
A perpendicular magnetic recording medium includes a soft magnetic backing layer, an underlayer, a nonmagnetic intermediate layer, and a magnetic recording layer sequentially deposited on a nonmagnetic substrate. The underlayer can contain cobalt, nickel, and iron and have an fcc structure and exhibit soft magnetic property. The underlayer preferably contains nickel in a range of 30 to 88 at % and iron in a range of 0.1 to 22 at %. The underlayer can further contain Si, B, Nb, N, Ta, Al, Pd, Cr, or Mo. The nonmagnetic intermediate layer preferably contains at least one element selected from Ru, Re, Pd, Ir, Pt, and Rh. The magnetic recording layer preferably has a granular structure. A seed layer can be further provided between the soft magnetic backing layer and the underlayer.
IPC Classes ?
- G11B 5/66 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
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4.
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Magnetic recording medium and method for manufacturing the same
Application Number |
11114578 |
Grant Number |
08039133 |
Status |
In Force |
Filing Date |
2005-04-26 |
First Publication Date |
2005-09-08 |
Grant Date |
2011-10-18 |
Owner |
Fuji Electric Device Technology Co., Ltd. (Japan)
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Inventor |
- Nakamura, Miyabi
- Shimizu, Takahiro
- Uwazumi, Hiroyuki
- Takizawa, Naoki
- Oikawa, Tadaaki
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Abstract
A magnetic recording medium, and method of manufacturing the same, is provided with excellent recording performance by employing a granular magnetic layer having a specified composition. A magnetic recording medium according to the present invention comprises a nonmagnetic underlayer, a granular magnetic layer, a protective film, and a liquid lubrication layer sequentially laminated on a nonmagnetic substrate. The granular magnetic layer consists of ferromagnetic crystal grains containing cobalt and nonmagnetic grain boundary region surrounding the ferromagnetic crystal grains. The ferromagnetic crystal grains contain platinum in the range of 15 at % to 17 at %.
IPC Classes ?
- G11B 5/66 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
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