JP6537807B2 - パッケージ化電子デバイス、パッケージ化無線周波数(rf)モジュールを作製するための方法、およびワイヤレスデバイス - Google Patents
パッケージ化電子デバイス、パッケージ化無線周波数(rf)モジュールを作製するための方法、およびワイヤレスデバイス Download PDFInfo
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- JP6537807B2 JP6537807B2 JP2014224492A JP2014224492A JP6537807B2 JP 6537807 B2 JP6537807 B2 JP 6537807B2 JP 2014224492 A JP2014224492 A JP 2014224492A JP 2014224492 A JP2014224492 A JP 2014224492A JP 6537807 B2 JP6537807 B2 JP 6537807B2
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- H01L2924/19041—Component type being a capacitor
-
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/1901—Structure
- H01L2924/1904—Component type
- H01L2924/19042—Component type being an inductor
-
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- H01L2924/1901—Structure
- H01L2924/1904—Component type
- H01L2924/19043—Component type being a resistor
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- Y10T29/49117—Conductor or circuit manufacturing
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Description
この出願は、2013年11月5日に出願された、「パッケージ化電子デバイス、パッケージ化無線周波数(RF)モジュールを作製するための方法、およびワイヤレスデバイス」と題された米国仮出願番号第61/900,394号に対する優先権を主張し、その開示全体が本明細書中に引用により明示的に援用される。
分野
本開示は概して、パッケージ化無線周波数(RF)モジュールの遮蔽に関する。
電磁(EM)界は、RFモジュールなどの無線周波数(RF)デバイスの領域から生成される可能性がある、または当該領域に対する望ましくない影響を有する可能性がある。そのような電磁障害(EMI)は、そのようなRFモジュールを用いるワイヤレスデバイスの性能を劣化させる可能性がある。RFモジュールには、EMIに関連のそのような性能の問題に対処するためのEM遮蔽を設けることができるものがある。
いくつかの実現例に従うと、本開示は、1つ以上の構成要素を受けるように構成されるセラミック基板を含むパッケージ化電子デバイスに関する。セラミック基板は、接地平面と電気的に接する導電層を含む。パッケージ化電子デバイスはさらに、集積回路を有するダイを含む。ダイはセラミック基板の表面上に実装される。パッケージ化電子デバイスはさらに、ダイ上に実現されて遮蔽機能性を与えるコンフォーマル導電性コーティングを含む。パッケージ化電子デバイスはさらに、コンフォーマル導電性コーティングと導電層との間の電気的接続部を含む。
本明細書中に与えられる見出しは、あるとしても便宜上のものにすぎず、請求される発明の範囲または意味に必ずしも影響を及ぼすとは限らない。
Claims (15)
- パッケージ化電子デバイスであって、
1つ以上の構成要素を受けるように構成されるセラミック基板を備え、前記セラミック基板は接地平面と電気的に接する導電層を含み、さらに
集積回路を有するダイを備え、前記ダイは前記セラミック基板の表面上に実装され、さらに
前記ダイの実質的に直上、および前記セラミック基板の側方端縁まで延在する前記セラミック基板の前記表面の露出部分上に実現されて遮蔽機能性を与えるコンフォーマル導電性コーティングと、
前記コンフォーマル導電性コーティングと前記導電層との間の電気的接続部とを備え、
前記電気的接続部は、前記セラミック基板の前記露出部分から前記セラミック基板を貫通する導電性ビアを含む、パッケージ化電子デバイス。 - 前記ダイはフリップチップデバイスとして構成される、請求項1に記載のパッケージ化電子デバイス。
- 前記フリップチップデバイスと前記セラミック基板との間に実現されるアンダーフィルをさらに備える、請求項2に記載のパッケージ化電子デバイス。
- 前記アンダーフィルは、前記フリップチップデバイスの側壁と前記セラミック基板の前記表面との間の角度付けられた遷移を設けるように構成される端縁プロファイルを含む、請求項3に記載のパッケージ化電子デバイス。
- 前記集積回路は無線周波数(RF)スイッチング回路を含む、請求項1に記載のパッケージ化電子デバイス。
- 前記ダイはシリコンオンインシュレータ(SOI)ダイである、請求項5に記載のパッケージ化電子デバイス。
- 前記導電層は、前記導電層の端縁が前記コンフォーマル導電性コーティングと電気的に接するように、前記セラミック基板の対応の前記側方端縁に沿った端縁を含む、請求項1に記載のパッケージ化電子デバイス。
- 前記導電層は、前記セラミック基板の前記対応の側方端縁に沿った導電性ストリップを含む、請求項7に記載のパッケージ化電子デバイス。
- 前記導電性ストリップは、前記導電性ストリップと前記コンフォーマル導電性コーティングとの間の電気的接触を容易にするように前記セラミック基板の前記対応の側方端縁上に十分に露出する端縁を含む、請求項8に記載のパッケージ化電子デバイス。
- 前記導電層は、前記セラミック基板の各々の端縁が前記コンフォーマル導電性コーティングと電気的に接する前記導電性ストリップの対応の露出した前記端縁を含むように配置される複数の前記導電性ストリップを含む、請求項9に記載のパッケージ化電子デバイス。
- 前記コンフォーマル導電性コーティングは、金属性塗料層または堆積によって形成される導電層を含む、請求項1に記載のパッケージ化電子デバイス。
- 前記セラミック基板は低温同時焼成セラミック(LTCC)基板を含む、請求項1に記載のパッケージ化電子デバイス。
- 前記セラミック基板の下側に実現される複数のコンタクトパッドをさらに備え、前記コンタクトパッドは回路板上への前記パッケージ化電子デバイスの実装を可能にするように構成される、請求項1に記載のパッケージ化電子デバイス。
- RF信号を処理するように構成されるRFモジュールであって、
1つ以上の構成要素を受けるように構成されるセラミック基板を含み、前記セラミック基板は接地平面と電気的に接する導電層を含み、さらに
集積回路を有するダイを含み、前記ダイは前記セラミック基板の表面上に実装され、さらに
前記ダイの実質的に直上、および前記セラミック基板の側方端縁まで延在する前記セラミック基板の前記表面の露出部分上に実現されて遮蔽機能性を与えるコンフォーマル導電性コーティングと、
前記コンフォーマル導電性コーティングと前記導電層との間の電気的接続部とを含み、
前記電気的接続部は、前記セラミック基板の前記露出部分から前記セラミック基板を貫通する導電性ビアを含む、RFモジュール。 - 前記導電層は、前記導電層の端縁が前記コンフォーマル導電性コーティングと電気的に接するように、前記セラミック基板の対応の側方端縁に沿った端縁を含む、請求項14に記載のRFモジュール。
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