JP5799959B2 - 電子部品 - Google Patents
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- JP5799959B2 JP5799959B2 JP2012545747A JP2012545747A JP5799959B2 JP 5799959 B2 JP5799959 B2 JP 5799959B2 JP 2012545747 A JP2012545747 A JP 2012545747A JP 2012545747 A JP2012545747 A JP 2012545747A JP 5799959 B2 JP5799959 B2 JP 5799959B2
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- 239000004020 conductor Substances 0.000 claims description 73
- 239000004065 semiconductor Substances 0.000 claims description 60
- 239000012212 insulator Substances 0.000 claims description 57
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 description 11
- 239000000758 substrate Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 101000998140 Homo sapiens Interleukin-36 alpha Proteins 0.000 description 1
- 101000998126 Homo sapiens Interleukin-36 beta Proteins 0.000 description 1
- 101001040964 Homo sapiens Interleukin-36 receptor antagonist protein Proteins 0.000 description 1
- 101000998122 Homo sapiens Interleukin-37 Proteins 0.000 description 1
- 101000613615 Homo sapiens Protein mono-ADP-ribosyltransferase PARP14 Proteins 0.000 description 1
- 101000735459 Homo sapiens Protein mono-ADP-ribosyltransferase PARP9 Proteins 0.000 description 1
- 102100021150 Interleukin-36 receptor antagonist protein Human genes 0.000 description 1
- 101100375588 Oryza sativa subsp. japonica YAB2 gene Proteins 0.000 description 1
- 102100040848 Protein mono-ADP-ribosyltransferase PARP14 Human genes 0.000 description 1
- 102100034930 Protein mono-ADP-ribosyltransferase PARP9 Human genes 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
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Description
前記積層体の上面には前記増幅器用半導体素子と接続される端子電極が形成さており、
前記積層体の上面に近い絶縁体層に第一のグランド電極が形成されており、
前記積層体の下面に近い絶縁体層に第二のグランド電極が形成されており、
前記積層体は下面に第三のグランド電極が形成されており、
前記第一のグランド電極は前記実装電極に複数のビアホールで接続されており、
前記第三のグランド電極は前記第二のグランド電極に複数のビアホールを介して接続されており、
前記第一のグランド電極と前記第二のグランド電極との間で前記増幅器用半導体素子の下方の領域に、第一の回路ブロックを構成する導体パターンが配置されており、
前記第一の回路ブロックと前記増幅器用半導体素子との接続線路は、前記実装電極と前記第一のグランド電極とに挟まれた絶縁体層に配置された接続線路用導体パターンと、前記接続線路用導体パターンと前記第一の回路ブロックを構成するキャパシタンス用導体パターンとを接続する積層方向に連なった複数のビアホールとを有し、
前記接続線路用の導体パターンの周囲に前記実装電極と前記第一のグランド電極とを接続する複数のビアホールが配置され、
前記増幅器用半導体素子の出力端子側の下方の領域に、前記実装電極と前記第三のグランド電極との間を直線状に連なって接続する複数のビアホールからなる放熱経路が形成されていることを特徴とする。
図1〜図7は本発明の第一の実施態様による電子部品1を示す。図1及び図3〜5に示す絶縁体層L1〜L4は必須の層であるが、本発明の電子部品1はそれら以外の絶縁体層も有している。従って、連続する参照番号を有する絶縁体層同士が隣接しているとは限らず、例えば図4に示す絶縁体層L3と図5に示す絶縁体層L4との間に別の絶縁体層が介在していても良い。
積層体100の上面に近い絶縁体層に第一のグランド電極10aが形成されており、
積層体100の下面に近い絶縁体層に第二のグランド電極10bが形成されており、
第一のグランド電極10aは実装電極11に複数のビアホール20で接続されており、
第一のグランド電極10aと第二のグランド電極10bとの間で増幅器用半導体素子60の下方の領域に、第一の回路ブロック70を構成する導体パターンが配置されており、
第一の回路ブロック70と増幅器用半導体素子60との接続線路用の導体パターンの少なくとも一部が、実装電極11と第一のグランド電極10aとに挟まれた絶縁体層L2に配置されている。
図8〜図12は本発明の第二の実施態様による電子部品1を示す。この電子部品1は無線LAN用の無線通信装置の高周波送受信回路部に用いられるものであり、複数のフィルタとバランを備えるとともに、高周波増幅器、ローノイズアンプ、高周波スイッチを積層体に実装している。
積層体100を構成する各絶縁体層はセラミック誘電体、樹脂、又は樹脂とセラミックとの複合材により形成することができる。導体パターンが形成された絶縁体層の積層は公知の方法により行うことができる。例えば絶縁体層にセラミック誘電体を用いる場合には、LTCC(低温同時焼成セラミック)技術又はHTCC(高温同時焼成セラミック)技術により積層できる。また絶縁体層に樹脂を用いる場合にはビルドアップ技術により積層できる。
Claims (5)
- 導体パターンが形成された複数の絶縁体層を有する積層体と、前記積層体の上面の実装電極に搭載され、入力端子と出力端子を備えた増幅器用半導体素子とを具備する電子部品であって、
前記積層体の上面には前記増幅器用半導体素子と接続される端子電極が形成さており、
前記積層体の上面に近い絶縁体層に第一のグランド電極が形成されており、
前記積層体の下面に近い絶縁体層に第二のグランド電極が形成されており、
前記積層体の下面に第三のグランド電極が形成されており、
前記第一のグランド電極は前記実装電極に複数のビアホールで接続されており、
前記第三のグランド電極は前記第二のグランド電極に複数のビアホールを介して接続されており、
前記第一のグランド電極と前記第二のグランド電極との間で前記増幅器用半導体素子の下方の領域に、第一の回路ブロックを構成する導体パターンが配置されており、
前記第一の回路ブロックと前記増幅器用半導体素子との接続線路は、前記実装電極と前記第一のグランド電極とに挟まれた絶縁体層に配置された接続線路用導体パターンと、前記接続線路用導体パターンと前記第一の回路ブロックを構成するキャパシタンス用導体パターンとを接続する積層方向に連なった複数のビアホールとを有し、
前記接続線路用導体パターンの周囲に前記実装電極と前記第一のグランド電極とを接続する複数のビアホールが配置され、
前記増幅器用半導体素子の出力端子側の下方の領域に、前記実装電極と前記第三のグランド電極との間を直線状に連なって接続する複数のビアホールからなる放熱経路が形成されていることを特徴とする電子部品。 - 請求項1に記載の電子部品において、前記接続線路用導体パターンが、前記増幅器用半導体素子の入力端子と接続する端子電極にビアホールを介して接続されたストリップラインであることを特徴とする電子部品。
- 請求項1又は2に記載の電子部品において、前記増幅器用半導体素子に接続される電源線路用の導体パターンは、前記第一のグランド電極より上側の絶縁体層、及び前記第二のグランド電極より下側の絶縁体層に設けられていることを特徴とする電子部品。
- 請求項1〜3のいずれかに記載の電子部品において、
前記放熱経路の複数のビアホールは面内方向に縦列配置しており、もって第一のシールドを構成し、
前記第一のシールドにより、前記第一のグランド電極と前記第二のグランド電極との間の前記積層体の内部が少なくとも2つの領域に区画され、
前記第一のシールドは前記実装電極の面積の1/2を超えない領域に設けられていることを特徴とする電子部品。 - 請求項4に記載の電子部品において、
前記積層体の第一のグランド電極と第二のグランド電極との間の絶縁体層に、積層方向に連なって接続するとともに面内方向に縦列配置となるように複数のビアホールが形成されてなる第二のシールドを備え、前記第一のシールドと第二のシールドにより前記積層体の内部が少なくとも3つの領域に区画され、前記第一の回路ブロックを構成する導体パターンは前記第一のシールドと第二のシールドとの間の領域に設けられることを特徴とする電子部品。
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