JP2023520029A - 裏面ソース端子、ゲート端子及び/又はドレイン端子を有するiii族窒化物ベースの高周波増幅器 - Google Patents
裏面ソース端子、ゲート端子及び/又はドレイン端子を有するiii族窒化物ベースの高周波増幅器 Download PDFInfo
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- JP2023520029A JP2023520029A JP2022559836A JP2022559836A JP2023520029A JP 2023520029 A JP2023520029 A JP 2023520029A JP 2022559836 A JP2022559836 A JP 2022559836A JP 2022559836 A JP2022559836 A JP 2022559836A JP 2023520029 A JP2023520029 A JP 2023520029A
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Abstract
Description
Claims (31)
- 半導体層構造と、前記半導体層構造上のゲート端子、ソース端子、及びドレイン端子と、を含むIII族窒化物ベースのRF増幅器ダイ、
を備え、
前記半導体層構造の上部に複数の単位セル・トランジスタが設けられ、前記ゲート端子、前記ドレイン端子、及び前記ソース端子のうちの少なくとも2つが前記半導体層構造の下面に設けられている、
高周波(「RF」)増幅器。 - 前記ドレイン端子が1つ又は複数の導電性ドレイン・ビアを介して前記単位セル・トランジスタに電気的に接続されている、請求項1に記載のRF増幅器。
- 前記ゲート端子が1つ又は複数の導電性ゲート・ビアを介して前記単位セル・トランジスタに電気的に接続されている、請求項1に記載のRF増幅器。
- 前記ゲート端子が1つ又は複数の導電性ゲート・ビアを介して前記単位セル・トランジスタに電気的に接続され、前記ドレイン端子が1つ又は複数の導電性ドレイン・ビアを介して前記単位セル・トランジスタに電気的に接続されている、請求項1に記載のRF増幅器。
- 前記半導体層構造が、成長基板と、チャネル層と、バリア層とを含み、前記チャネル層が前記成長基板と前記バリア層との間にある、請求項1から4までのいずれか一項に記載のRF増幅器。
- 前記III族窒化物ベースのRF増幅器ダイが、前記チャネル層の反対側のバリア層上にある複数のゲート・フィンガ、複数のドレイン・フィンガ、及び複数のソース・フィンガを備えるメタライゼーション構造をさらに含み、
前記ゲート・フィンガが前記1つ又は複数の導電性ゲート・ビアを介して前記ゲート端子に電気的に接続され、前記ドレイン・フィンガが前記1つ又は複数の導電性ドレイン・ビアを介して前記ドレイン端子に電気的に接続されている、請求項5に記載のRF増幅器。 - 前記1つ又は複数の導電性ゲート・ビア及び前記1つ又は複数の導電性ドレイン・ビアが前記半導体層構造を貫いて延在する金属めっきビアである、請求項6に記載のRF増幅器。
- 前記1つ又は複数の導電性ゲート・ビア及び前記1つ又は複数の導電性ドレイン・ビアが前記成長基板を貫いて延在する、請求項5から7までのいずれか一項に記載のRF増幅器。
- 前記ゲート端子に電気的に接続されたゲート・パッドと、前記ドレイン端子に電気的に接続されたドレイン・パッドと、前記ソース端子に電気的に接続されたソース・パッドと、を含む相互接続構造をさらに備える、請求項1から8までのいずれか一項に記載のRF増幅器。
- 前記ゲート・パッド、前記ドレイン・パッド、及び前記ソース・パッドが導電性エポキシ・パターンを介して前記ゲート端子、前記ドレイン端子、及び前記ソース端子にそれぞれ電気的に接続されている、請求項9に記載のRF増幅器。
- 前記ゲート端子が前記相互接続構造の上面に垂直な第1の軸に沿って前記ゲート・パッドと重なり合い、前記ドレイン端子が前記相互接続構造の上面に垂直な第2の軸に沿って前記ドレイン・パッドと重なり合い、前記ソース端子が前記相互接続構造の上面に垂直な第3の軸に沿って前記ソース・パッドと重なり合っている、請求項9から10までのいずれか一項に記載のRF増幅器。
- 前記1つ又は複数の導電性ゲート・ビア、前記1つ又は複数の導電性ドレイン・ビア、及び前記1つ又は複数の導電性ソース・ビアがすべて、実質的に同じ形状及び実質的に同じ断面積を有する、請求項4から11までのいずれか一項に記載のRF増幅器。
- 前記相互接続構造が整合回路の少なくとも第1の部分を含む、請求項9から11までのいずれか一項に記載のRF増幅器。
- 前記1つ又は複数の導電性ゲート・ビアが前記整合回路の第2の部分を構成する、請求項13に記載のRF増幅器。
- 入力整合回路に接続されたゲート・パッド、出力整合回路に接続されたドレイン・パッド、及び放熱構造に結合されたソース・パッドを含む相互接続構造と、
前記相互接続構造上に取り付けられたIII族窒化物ベースのRF増幅器ダイであって、
第1の側と、前記第1の側とは反対側にある第2の側とを有する半導体層構造、
前記相互接続構造の上面に垂直な第1の軸に沿って前記ゲート・パッドと重なり合う、前記半導体層構造の前記第1の側のゲート端子、
前記相互接続構造の上面に垂直な第2の軸に沿って前記ドレイン・パッドと重なり合う、前記半導体層構造の前記第1の側のドレイン端子、
前記相互接続構造の上面に垂直な第3の軸に沿って前記ソース・パッドと重なり合う、前記半導体層構造の前記第1の側のソース端子、
前記ゲート端子に電気的に接続され、前記半導体層構造の前記第2の側から前記半導体層構造の前記第1の側に延在する導電性ゲート・ビア、及び
前記ドレイン端子に電気的に接続され、前記半導体層構造の前記第2の側から前記半導体層構造の前記第1の側に延在する導電性ドレイン・ビア、
を含む、III族窒化物ベースのRF増幅器ダイと、
を備える、高周波(「RF」)増幅器。 - 前記III族窒化物ベースのRF増幅器ダイが前記半導体層構造の前記第2の側にある複数のゲート・フィンガ、ドレイン・フィンガ、及びソース・フィンガをさらに含み、
前記ゲート・フィンガのうちの少なくとも一部が前記導電性ゲート・ビアを介して前記ゲート端子に電気的に接続され、前記ドレイン・フィンガのうちの少なくとも一部が前記導電性ドレイン・ビアを介して前記ドレイン端子に電気的に接続されている、請求項15に記載のRF増幅器。 - 前記ゲート・パッド、前記ドレイン・パッド、及び前記ソース・パッドが導電性エポキシ・パターンを介して前記ゲート端子、前記ドレイン端子、及び前記ソース端子にそれぞれ電気的に接続されている、請求項15又は16に記載のRF増幅器。
- 前記III族窒化物ベースのRF増幅器ダイが前記半導体層構造の前記第2の側から前記半導体層構造の前記第1の側に延在する、前記ソース端子に電気的に接続された導電性ソース・ビアをさらに備える、請求項15から17までのいずれか一項に記載のRF増幅器。
- 前記導電性ゲート・ビア、前記導電性ドレイン・ビア、及び前記導電性ソース・ビアのすべてが、実質的に同じ形状及び実質的に同じ断面積を有する、請求項18に記載のRF増幅器。
- 前記相互接続構造が整合回路の少なくとも第1の部分を含む、請求項15から19までのいずれか一項に記載のRF増幅器。
- 前記1つ又は複数の導電性ゲート・ビアが前記整合回路の第2の部分を構成する、請求項20に記載のRF増幅器。
- チャネル層及び前記チャネル層上のバリア層を含む半導体層構造と、
ゲート端子と、
ドレイン端子と、
ソース端子と、
少なくとも1つの導電性ゲート・ビアを介して前記ゲート端子に電気的に接続された複数のゲート・フィンガと、
少なくとも1つの導電性ドレイン・ビアを介して前記ドレイン端子に電気的に接続された複数のドレイン・フィンガと、
少なくとも1つの導電性ソース・ビアを介して前記ソース端子に電気的に接続された複数のソース・フィンガと、
を含む、III族窒化物ベースのRF増幅器ダイであって、
前記ゲート・フィンガ、前記ドレイン・フィンガ、及び前記ソース・フィンガがすべて、前記半導体層構造の第1の側にあり、
前記ゲート端子、前記ドレイン端子、及び前記ソース端子がすべて、前記半導体層構造の前記第1の側とは反対側の第2の側にある、
III族窒化物ベースのRF増幅器ダイ、
を備える、高周波(「RF」)増幅器。 - 前記半導体層構造が成長基板をさらに含み、前記チャネル層が前記成長基板と前記バリア層との間にある、請求項22に記載のRF増幅器。
- 前記少なくとも1つの導電性ゲート・ビア及び前記少なくとも1つの導電性ドレイン・ビアが前記成長基板を完全に貫いて延在する、請求項23に記載のRF増幅器。
- 前記少なくとも1つの導電性ゲート・ビア及び前記少なくとも1つの導電性ドレイン・ビアがそれぞれ、前記半導体層構造を完全に貫いて延在する金属めっきビアを備える、請求項22から24までのいずれか一項に記載のRF増幅器。
- 前記ゲート端子に電気的に接続されたゲート・パッド、前記ドレイン端子に電気的に接続されたドレイン・パッド、及び前記ソース端子に電気的に接続されたソース・パッドを含む相互接続構造をさらに備える、請求項22から25までのいずれか一項に記載のRF増幅器。
- 前記ゲート・パッド、前記ドレイン・パッド、及び前記ソース・パッドが導電性エポキシ・パターンを介して前記ゲート端子、前記ドレイン端子、及び前記ソース端子にそれぞれ電気的に接続されている、請求項26に記載のRF増幅器。
- 前記ゲート端子が前記相互接続構造の上面に垂直な第1の軸に沿って前記ゲート・パッドと重なり合い、前記ドレイン端子が前記相互接続構造の上面に垂直な第2の軸に沿って前記ドレイン・パッドと重なり合い、前記ソース端子が前記相互接続構造の上面に垂直な第3の軸に沿って前記ソース・パッドと重なり合っている、請求項26又は27に記載のRF増幅器。
- 頂部側及び前記頂部側の反対側の底部側を有する半導体層構造と、
前記半導体層構造の前記頂部側の複数のゲート・フィンガと、
ゲート端子、ドレイン端子、及びソース端子であって、これらのうちの少なくとも2つが前記半導体層構造の前記底部側にある、ゲート端子、ドレイン端子、及びソース端子と、
を備える、III族窒化物ベースの高周波(「RF」)増幅器ダイ。 - 前記半導体層構造の前記頂部側の複数のドレイン・フィンガと、
前記半導体層構造の前記頂部側の複数のソース・フィンガと、
1つ又は複数の導電性ゲート・ビアと、
1つ又は複数の導電性ドレイン・ビアと、
1つ又は複数の導電性ソース・ビアと、
をさらに備え、
前記ゲート端子が前記1つ又は複数の導電性ゲート・ビアを介して前記複数のゲート・フィンガに電気的に接続され、
前記ドレイン端子が前記1つ又は複数の導電性ドレイン・ビアを介して前記複数のドレイン・フィンガに電気的に接続され、
前記ソース端子が前記1つ又は複数の導電性ソース・ビアを介して前記複数のソース・フィンガに電気的に接続されている、
請求項29に記載のIII族窒化物ベースのRF増幅器ダイ。 - 前記半導体層構造が、成長基板と、チャネル層と、バリア層とを備え、前記チャネル層が前記成長基板と前記バリア層との間にあり、
前記1つ又は複数の導電性ゲート・ビア、前記1つ又は複数の導電性ドレイン・ビア、及び前記1つ又は複数の導電性ソース・ビアが前記成長基板を完全に貫いて延在する、
請求項30に記載のIII族窒化物ベースのRF増幅器ダイ。
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