JPWO2018198990A1 - 電子部品および半導体装置 - Google Patents
電子部品および半導体装置 Download PDFInfo
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- JPWO2018198990A1 JPWO2018198990A1 JP2019514471A JP2019514471A JPWO2018198990A1 JP WO2018198990 A1 JPWO2018198990 A1 JP WO2018198990A1 JP 2019514471 A JP2019514471 A JP 2019514471A JP 2019514471 A JP2019514471 A JP 2019514471A JP WO2018198990 A1 JPWO2018198990 A1 JP WO2018198990A1
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- chip
- main surface
- substrate
- insulating layer
- electronic component
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Abstract
Description
6 基板(半導体基板)
7 主面絶縁層
8 封止絶縁層
9 基板の第1基板主面
10 基板の第2基板主面
12 封止絶縁層の第1封止主面
14 封止絶縁層の封止側面
15 ゲート外部端子
16 ソース外部端子
17 ソースセンス外部端子
18 ドレイン外部端子
20 配線層
21 MISFETチップ
24 MISFETチップのチップ本体
25 MISFETチップの第1チップ主面
26 MISFETチップの第2チップ主面
28 MISFETチップのゲート端子電極層
29 MISFETチップのソース端子電極層
30 MISFETチップのソースセンス端子電極層
31 MISFETチップのドレイン端子電極層
33 ゲートパッド開口
34 ソースパッド開口
35 ソースセンスパッド開口
36 ドレインパッド開口
40 ゲート外部端子のゲート柱状電極層
41 ゲート外部端子のゲート接続部
42 ソース外部端子のソース柱状電極層
43 ソース外部端子のソース接続部
44 ソースセンス外部端子のソースセンス柱状電極層
45 ソースセンス外部端子のソースセンス接続部
46 ドレイン外部端子のドレイン柱状電極層
47 ドレイン外部端子のドレイン接続部
61 電子部品
62 ゲート外部端子のゲート導電接合層
63 ソース外部端子のソース導電接合層
64 ソースセンス外部端子のソースセンス導電接合層
65 ドレイン外部端子のドレイン導電接合層
71 電子部品
72 ゲート外部端子のゲート電極膜
73 ゲート外部端子のゲート導電接合層
74 ゲート外部端子の被覆部
75 ソース外部端子のソース電極膜
76 ソース外部端子のソース導電接合層
77 ソース外部端子の被覆部
78 ソースセンス外部端子のソースセンス電極膜
79 ソースセンス外部端子のソースセンス導電接合層
80 ソースセンス外部端子の被覆部
81 ドレイン外部端子のドレイン電極膜
82 ドレイン外部端子のレイン導電接合層
83 ドレイン外部端子の被覆部
91 電子部品
92 放熱構造
93 フィン構造
101 電子部品
102 放熱構造
103 放熱部材
111 電子部品
112 ダイオードチップ
113 ダイオードチップのチップ本体
114 ダイオードチップの第1チップ主面
115 ダイオードチップの第2チップ主面
117 ダイオードチップのカソード端子電極層
118 ダイオードチップのアノード端子電極層
120 カソードパッド開口
121 アノードパッド開口
122 カソード外部端子
123 アノード外部端子
124 カソード外部端子のカソード柱状電極層
125 カソード外部端子のカソード接続部
126 アノード外部端子のアノード柱状電極層
127 アノード外部端子のアノード接続部
131 電子部品
132 ICチップ
133 第1配線層
134 第2配線層
135 第3配線層
136 入力外部端子
141 ICチップのチップ本体
142 ICチップの第1チップ主面
143 ICチップの第2チップ主面
145 ICチップの出力端子電極層
146 ICチップの入力端子電極層
148 中間絶縁層
161 第1接続配線層
162 第2接続配線層
163 第3接続配線層
181 電子部品
Claims (35)
- 一方側の第1主面および他方側の第2主面を有する基板と、
一方側の第1チップ主面および他方側の第2チップ主面、ならびに、前記第1チップ主面および/または前記第2チップ主面に形成された複数の電極を有し、前記基板の前記第1主面に配置されたチップと、
前記基板の前記第2主面を露出させるように前記基板の前記第1主面の上で前記チップを封止し、前記基板の前記第1主面に対向する封止主面を有する封止絶縁層と、
前記封止絶縁層の前記封止主面から露出するように前記封止絶縁層を貫通して形成され、前記チップの前記複数の電極にそれぞれ電気的に接続された複数の外部端子と、を含む、電子部品。 - 前記封止絶縁層の前記封止主面は、実装面を形成しており、
前記チップの前記複数の電極にそれぞれ電気的に接続された前記複数の外部端子の全てが、前記実装面から露出している、請求項1に記載の電子部品。 - 前記基板は、前記第1主面および前記第2主面を接続する側面を含み、
前記封止絶縁層は、前記基板の前記側面を露出させている、請求項1または2に記載の電子部品。 - 前記封止絶縁層は、前記基板の前記側面に対して面一に形成された封止側面を含む、請求項3に記載の電子部品。
- 前記チップは、前記第1チップ主面側に形成された回路素子を含み、前記第2チップ主面を前記基板の前記第1主面に対向させた姿勢で前記第1主面の上に配置されており、
前記複数の外部端子は、前記封止絶縁層を貫通して前記チップの前記複数の電極にそれぞれ電気的に接続されたチップ側外部端子を含む、請求項1〜4のいずれか一項に記載の電子部品。 - 前記基板は、シリコン基板、炭化シリコン基板、サファイア基板または窒化物半導体基板を含む、請求項1〜5のいずれか一項に記載の電子部品。
- 前記基板の前記第1主面の上に形成された配線層をさらに含み、
前記チップは、前記第2チップ主面に形成され、前記配線層に電気的に接続された配線側電極を含む、請求項1〜6のいずれか一項に記載の電子部品。 - 前記複数の外部端子は、前記封止絶縁層を貫通して前記配線層に接続された配線層側外部端子を含む、請求項7に記載の電子部品。
- 前記基板の前記第1主面に形成され、前記基板の前記第1主面および前記チップの間の領域に介在する主面絶縁層をさらに含む、請求項1〜8のいずれか一項に記載の電子部品。
- 前記主面絶縁層は、酸化シリコン、窒化シリコン、酸窒化シリコン、酸化アルミニウム、窒化アルミニウムまたは酸窒化アルミニウムのうちの少なくとも1種を含む、請求項9に記載の電子部品。
- 前記基板の前記第2主面に設けられ、前記チップで生じた熱を外部に放散させる放熱構造をさらに含む、請求項1〜10のいずれか一項に記載の電子部品。
- 前記放熱構造は、前記基板の前記第2主面に形成されたフィン構造を含む、請求項11に記載の電子部品。
- 前記放熱構造は、前記基板の前記第2主面を被覆する放熱部材を含む、請求項11または12に記載の電子部品。
- 前記複数の外部端子は、前記基板の前記第1主面の法線方向に沿って柱状に立設された柱状電極層をそれぞれ含む、請求項1〜13のいずれか一項に記載の電子部品。
- 前記柱状電極層は、外部接続される接続部を含み、
前記柱状電極層の前記接続部は、前記封止絶縁層の前記封止主面に対して面一に形成されている、請求項14に記載の電子部品。 - 前記複数の外部端子は、前記柱状電極層の上に形成された導電接合層をそれぞれ含む、請求項14または15に記載の電子部品。
- 前記導電接合層の全体が、前記封止絶縁層の前記封止主面から露出している、請求項16に記載の電子部品。
- 前記封止絶縁層の前記封止主面には、複数の開口が形成されており、
前記複数の外部端子は、前記開口の内壁に沿って膜状に形成された電極膜をそれぞれ含む、請求項1〜13のいずれか一項に記載の電子部品。 - 前記複数の外部端子は、前記電極膜の上に形成された導電接合層をそれぞれ含む、請求項18に記載の電子部品。
- 前記電極膜は、前記開口の外側で前記封止絶縁層の前記封止主面を被覆する被覆部を含み、
前記導電接合層は、前記開口を埋めて、前記開口の外側で前記電極膜の前記被覆部を被覆している、請求項19に記載の電子部品。 - 前記基板の前記第1主面の上に配置された第2チップをさらに含み、
前記封止絶縁層は、前記基板の前記第1主面において前記チップおよび前記第2チップを封止している、請求項1〜20のいずれか一項に記載の電子部品。 - 前記第2チップは、前記チップに電気的に接続されている、請求項21に記載の電子部品。
- 前記基板の前記第1主面および前記封止絶縁層の間の領域に介在し、前記チップおよび前記第2チップを被覆する中間絶縁層と、
前記中間絶縁層および前記封止絶縁層の間の領域に介在し、前記チップおよび前記第2チップに電気的に接続されるように、前記中間絶縁層の上に引き回された接続配線層と、をさらに含む、請求項21または22に記載の電子部品。 - 前記チップは、ソース、ドレインおよびゲートを有するMISFETを含み、
前記第2チップは、前記チップの前記ドレインに電気的に接続されたカソード、および、前記チップの前記ソースに電気的に接続されたアノードを有するダイオードを含む、請求項21〜23のいずれか一項に記載の電子部品。 - 前記チップは、ソース、ドレインおよびゲートを有するMISFETを含み、
前記第2チップは、前記MISFETの前記ゲートを駆動制御する制御チップを含む、請求項21〜23のいずれか一項に記載の電子部品。 - 前記MISFETは、シリコン、炭化シリコンまたは窒化物半導体に形成された縦型または横型のデバイスであり、600V以上の耐圧を有している、請求項24または25に記載の電子部品。
- 前記チップは、エミッタ、コレクタおよびゲートを有するIGBTを含み、
前記第2チップは、前記チップの前記コレクタに電気的に接続されたカソード、および、前記チップの前記エミッタに電気的に接続されたアノードを有するダイオードを含む、請求項21〜23のいずれか一項に記載の電子部品。 - 前記IGBTは、シリコン、炭化シリコンまたは窒化物半導体に形成された縦型または横型のデバイスであり、600V以上の耐圧を有している、請求項27に記載の電子部品。
- 一方側の第1主面および他方側の第2主面を有する半導体基板と、
前記半導体基板の前記第1主面に形成された主面絶縁層と、
複数の電極を有し、前記主面絶縁層に配置された半導体チップと、
前記半導体基板の前記第2主面を露出させるように前記半導体基板の前記第1主面において前記半導体チップを封止し、前記半導体基板の前記第1主面に対向する封止主面を有する封止絶縁層と、
前記封止絶縁層の前記封止主面から露出するように前記封止絶縁層を貫通して形成され、前記半導体チップの前記複数の電極にそれぞれ電気的に接続された複数の外部端子と、を含む、半導体装置。 - 前記封止絶縁層の前記封止主面は、実装面を形成しており、
前記半導体チップの前記複数の電極にそれぞれ電気的に接続された前記複数の外部端子の全てが、前記実装面から露出している、請求項29に記載の半導体装置。 - 前記半導体基板は、前記第1主面および前記第2主面を接続する側面を含み、
前記封止絶縁層は、前記半導体基板の前記側面を露出させている、請求項29または30に記載の半導体装置。 - 前記封止絶縁層は、前記半導体基板の前記側面に対して面一に形成された封止側面を含む、請求項31に記載の半導体装置。
- 前記半導体チップは、シリコン、炭化シリコンまたは窒化物半導体に形成された縦型または横型のトランジスタを有するデバイスであり、600V以上の耐圧を有している、請求項29〜32のいずれか一項に記載の半導体装置。
- 前記半導体基板は、シリコン基板、炭化シリコン基板、サファイア基板または窒化物半導体基板のうちの少なくとも1種を含む、請求項29〜33のいずれか一項に記載の半導体装置。
- 前記主面絶縁層は、酸化シリコン、窒化シリコン、酸窒化シリコン、酸化アルミニウム、窒化アルミニウムまたは酸窒化アルミニウムのうちの少なくとも1種を含み、かつ、0.1μm以上100μm以下の厚さを有している、請求項29〜34のいずれか一項に記載の半導体装置。
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