JP2002121639A5 - - Google Patents
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- JP2002121639A5 JP2002121639A5 JP2000317494A JP2000317494A JP2002121639A5 JP 2002121639 A5 JP2002121639 A5 JP 2002121639A5 JP 2000317494 A JP2000317494 A JP 2000317494A JP 2000317494 A JP2000317494 A JP 2000317494A JP 2002121639 A5 JP2002121639 A5 JP 2002121639A5
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Description
従来このようなハイパワーの高周波トランジスターに用いられるパッケージにおいては、例えば銅−タングステン系(以下Cu−W系とも記述する。)または銅−モリブデン系(以下Cu−Mo系とも記述する。)の複合材料が、その放熱基板として広く使われてきた。図1にこの種のパッケージの構造例を模式的に示す。同図のaは、バイポーラー型(Bi Polar)のものを示す。また今後増加して行くと予測されるパッケージの内、bは、Si半導体素子が搭載されるLDMOS型(Laterally Diffused Metal Oxide Silicon)か、またはGaAs半導体素子が搭載されるMSFET(Metal Semiconductor Field Effect Transistor)のものである。同図において、1はCu−WまたはCu−Moの複合材料からなる放熱基板、2は例えばアルミナ(以下Al2O3とも記述する。)、窒化アルミニウム(以下AlNとも記述する。)、ベリリア(以下BeOとも記述する。)のような高熱伝導性かつ電気絶縁性のセラミックスからなる基板である。なおアルミナ、窒化アルミニウム、ベリリアの熱膨張係数は、10−6/℃単位で順に6.5、4.5、7.6程度であり、熱伝導率は、W/m・K単位で順に20、170,280程度である。3は、SiやGaAsのような半導体材料からなる半導体素子(半導体集積回路部分)、4はコバール(Fe−Ni−Co合金であり、商品名)等の高熱伝導性金属からなる金属部材である。 Conventionally, in a package used for such a high-power high-frequency transistor, for example, a copper-tungsten type (hereinafter, also referred to as Cu-W type) or a copper-molybdenum type (hereinafter, also referred to as Cu-Mo type) composite. The material has been widely used as its heat dissipation substrate. FIG. 1 schematically shows a structural example of this type of package. In the figure, a shows a bipolar type (Bi Polar) type. Of the package is expected to continue to increase in the future, b is, Si LDMOS type semiconductor element is mounted (Laterally Diffused Metal Oxide Silicon) or MSFET (Metal Semico n ductor F of GaAs semiconductor element is mounted It is from the field Effect Transistor). In the figure, 1 is a heat-dissipating substrate made of a composite material of Cu-W or Cu-Mo, and 2 is, for example, alumina (hereinafter, also referred to as Al 2 O 3 ), aluminum nitride (hereinafter, also referred to as Al N), beryllium (hereinafter, also referred to as Al N). Hereinafter, it is also referred to as BeO), which is a substrate made of highly thermally conductive and electrically insulating ceramics. The coefficient of thermal expansion of alumina, aluminum nitride, and beryllium oxide is about 6.5, 4.5, and 7.6 in order of 10-6 / ° C., and the thermal conductivity is 20 in order of W / m · K. , 170, 280. 3, the semiconductor device comprising a semiconductor material such as Si and GaAs (semiconductor integrated circuit portion), 4 (a as an Fe-Ni-Co alloy, trade name) Kovar metal member made of a high heat Den-conductive metal such as is there.
実施例5
表9の「ヒートシンク」欄に記載された実施例1〜4それぞれの試料と同じ方法で作製された素材を放熱基板として用い、表8に記載された三種類の型式にて各種材質・外形サイズからなる部材とを併用した高周波トランジスターパッケージ用試片を作製した。作製した三種類のパッケージの構造を、LDMOS型については図3に、バイポーラー型については図4に、MSFETについては図5にそれぞれ模式的に示す。なお表8に記載された部材の寸法は、それぞれの図にmm単位で明示されたその外寸に準じて表示した。それぞれの図において、上の図はパッケージを上面から見た図であり、下はそのA−A´断面で切った図である。なお用いたセラミック部材2のアルミナ、半導体素子3のSi、GaAs、およびコバール製の金属部材4の熱伝導率は、W/m・K単位で順に20、140、54、および17であり、熱膨張係数は、10−6/℃単位で順に 6.5、4.2、6.5および5.3であった。
Example 5
Used in Table 9 the material made with been Example 1-4 The same way as each of the specimen in the "heat sink" column as a heat dissipation substrate, various materials and Dimensional at the described three types shown in Table 8 A sample for a high-frequency transistor package was produced in combination with a member of a size. The structures of the three types of packages produced are schematically shown in FIG. 3 for the LD MOS type, FIG. 4 for the bipolar type, and FIG. 5 for the MS FET. The dimensions of the members shown in Table 8 are shown according to the outer dimensions specified in mm in each figure. In each figure, the upper figure is a view of the package viewed from above, and the lower figure is a view cut along the AA'cross section. The thermal conductivity of the alumina of the ceramic member 2 used, Si, GaAs of the semiconductor element 3, and the metal member 4 made of Kovar is 20, 140, 54, and 17 in order of W / m · K, and the thermal conductivity is 20, 140, 54, and 17, respectively. The expansion coefficient was 6.5, 4.2, 6.5 and 5.3 in order of 10-6 / ° C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2000317494A JP2002121639A (en) | 2000-10-18 | 2000-10-18 | Heat radiation substrate, and high-power high-frequency transistor package using it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2000317494A JP2002121639A (en) | 2000-10-18 | 2000-10-18 | Heat radiation substrate, and high-power high-frequency transistor package using it |
Publications (2)
Publication Number | Publication Date |
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JP2002121639A JP2002121639A (en) | 2002-04-26 |
JP2002121639A5 true JP2002121639A5 (en) | 2005-10-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2000317494A Pending JP2002121639A (en) | 2000-10-18 | 2000-10-18 | Heat radiation substrate, and high-power high-frequency transistor package using it |
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JP (1) | JP2002121639A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8552813B2 (en) * | 2011-11-23 | 2013-10-08 | Raytheon Company | High frequency, high bandwidth, low loss microstrip to waveguide transition |
KR102231919B1 (en) * | 2018-11-07 | 2021-03-25 | (주)메탈라이프 | MoCu HEAT DISSIPATION MATERIAL WITH CARBON PARTICLES AND PREPARING METHOD THEREOF |
JPWO2022172855A1 (en) * | 2021-02-10 | 2022-08-18 | ||
JPWO2022172856A1 (en) * | 2021-02-10 | 2022-08-18 |
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2000
- 2000-10-18 JP JP2000317494A patent/JP2002121639A/en active Pending
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