JP6829701B2 - 超音波探触子およびそれを用いた超音波計測装置 - Google Patents
超音波探触子およびそれを用いた超音波計測装置 Download PDFInfo
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- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
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- H01L2224/8112—Aligning
- H01L2224/81136—Aligning involving guiding structures, e.g. spacers or supporting members
- H01L2224/81138—Aligning involving guiding structures, e.g. spacers or supporting members the guiding structures being at least partially left in the finished device
- H01L2224/81141—Guiding structures both on and outside the body
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- H01L2924/151—Die mounting substrate
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Description
100a 開口部
100b バンプ(接続用導体部)
100c 上面
100d 下面
100e 貫通孔
101 半導体チップ
101a 電極パッド
101aa 接続面(上面)
101b 上部電極
101ba 上面
101c 下部電極
101ca 下面
101d 凸部
101e 段差部
101f 第1絶縁膜
101g 第2絶縁膜
101h 第3絶縁膜
101i 空洞部
101j 外周絶縁膜
101ja 突起部
101k CMUTセル領域
101m 配線
101n シリコン基板
101p 絶縁膜
101q 表面
102 CMUT(静電容量型超音波トランスデューサ)
103 音響レンズ
104 接着材
105 接着フィルム
106 バッキング材
107 絶縁樹脂
108 隙間
120 被検体
121 ケーブル
122 ケース
131 超音波計測装置
132 超音波探触子
133 送受分離部
134 送信部
135 バイアス部
136 受信部
137 整相加算部
138 画像処理部
139 表示部
140 制御部
141 操作部
201 半導体チップ
201a 電極パッド
201b CMUTセル領域
201c 表面
Claims (11)
- 超音波トランスデューサが形成され、前記超音波トランスデューサの上部電極または下部電極と電気的に接続された電極パッドを備える半導体チップと、
前記電極パッドと電気的に接続される接続用導体部を備え、平面視で前記半導体チップの一部と重なる部分に前記接続用導体部が配置されるフレキシブル基板と、
を有し、
前記電極パッドの前記接続用導体部と接続する接続面の高さは、前記下部電極の下面の高さより低く、
前記電極パッドの上面は、前記上部電極の上面より低い位置に配置されて段差部となっており、
前記段差部に沿うように前記フレキシブル基板が延在している、超音波探触子。 - 請求項1に記載の超音波探触子において、
前記フレキシブル基板の前記延在する方向は、前記半導体チップの主面の4辺のうちの何れか2辺以上のそれぞれの辺に沿った方向である、超音波探触子。 - 超音波トランスデューサが形成され、前記超音波トランスデューサの上部電極または下部電極と電気的に接続された電極パッドを備える半導体チップと、
前記電極パッドと電気的に接続される接続用導体部を備え、平面視で前記半導体チップの一部と重なる部分に前記接続用導体部が配置されるフレキシブル基板と、
を有し、
前記電極パッドの前記接続用導体部と接続する接続面の高さは、前記下部電極の下面の高さより低く、
前記フレキシブル基板は、その表裏面に開口した開口部を備えており、
前記開口部に、前記半導体チップの前記超音波トランスデューサが形成された凸部が配置されている、超音波探触子。 - 請求項3に記載の超音波探触子において、
前記凸部上に音響レンズが配置されている、超音波探触子。 - 下部電極と、前記下部電極を覆う第1絶縁膜と、平面視で前記下部電極と重なって配置された空洞部と、前記空洞部を覆う第2絶縁膜と、平面視で前記空洞部と重なって配置された上部電極と、を備えた超音波トランスデューサが形成され、かつ、前記下部電極または前記上部電極と電気的に接続される電極パッドが形成された半導体チップと、
前記電極パッドと電気的に接続される接続用導体部を備えたフレキシブル基板と、
を有し、
前記電極パッドの前記接続用導体部と接続する接続面の高さは、前記下部電極の下面の高さより低く、
前記フレキシブル基板の下面は、前記半導体チップの厚さ方向において、前記半導体チップにおける前記上部電極の上面と、前記電極パッドの上面と、の間に位置している、超音波探触子。 - 下部電極と、前記下部電極を覆う第1絶縁膜と、平面視で前記下部電極と重なって配置された空洞部と、前記空洞部を覆う第2絶縁膜と、平面視で前記空洞部と重なって配置された上部電極と、を備えた超音波トランスデューサが形成され、かつ、前記下部電極または前記上部電極と電気的に接続される電極パッドが形成された半導体チップと、
前記電極パッドと電気的に接続される接続用導体部を備えたフレキシブル基板と、
を有し、
前記電極パッドの前記接続用導体部と接続する接続面の高さは、前記下部電極の下面の高さより低く、
前記電極パッドは、前記半導体チップの上面の少なくとも1つの辺に沿った周縁部に設けられている、超音波探触子。 - 下部電極と、前記下部電極を覆う第1絶縁膜と、平面視で前記下部電極と重なって配置された空洞部と、前記空洞部を覆う第2絶縁膜と、平面視で前記空洞部と重なって配置された上部電極と、を備えた超音波トランスデューサが形成され、かつ、前記下部電極または前記上部電極と電気的に接続される電極パッドが形成された半導体チップと、
前記電極パッドと電気的に接続される接続用導体部を備えたフレキシブル基板と、
を有し、
前記電極パッドの前記接続用導体部と接続する接続面の高さは、前記下部電極の下面の高さより低く、
前記半導体チップの前記電極パッドの外側に外周絶縁膜が形成されており、
前記外周絶縁膜の表面は、前記電極パッドの上面と同じ高さ、もしくは前記電極パッドの上面より低い高さである、超音波探触子。 - 請求項7に記載の超音波探触子において、
前記フレキシブル基板に複数の貫通孔が形成され、
前記外周絶縁膜に複数の突起部が形成され、
前記複数の突起部のそれぞれが前記複数の貫通孔のそれぞれに嵌め込まれている、超音波探触子。 - 超音波トランスデューサが形成されかつ前記超音波トランスデューサの上部電極または下部電極と電気的に接続された電極パッドを備える半導体チップと、前記電極パッドと電気的に接続される接続用導体部を備えかつ平面視で前記半導体チップの一部と重なる部分に前記接続用導体部が配置されるフレキシブル基板と、が設けられた超音波探触子と、
前記超音波探触子の超音波の送受信を制御する制御部と、
を有し、
前記半導体チップの前記電極パッドにおける前記フレキシブル基板の前記接続用導体部と接続する接続面の高さは、前記半導体チップの前記下部電極の下面の高さより低く、
前記電極パッドの上面は、前記上部電極の上面より低い位置に配置されて段差部となっており、
前記段差部に沿うように前記フレキシブル基板が延在している、超音波計測装置。 - 請求項9に記載の超音波計測装置において、
前記フレキシブル基板の前記延在する方向は、前記半導体チップの主面の4辺のうちの何れか2辺以上のそれぞれの辺に沿った方向である、超音波計測装置。 - 超音波トランスデューサが形成されかつ前記超音波トランスデューサの上部電極または下部電極と電気的に接続された電極パッドを備える半導体チップと、前記電極パッドと電気的に接続される接続用導体部を備えかつ平面視で前記半導体チップの一部と重なる部分に前記接続用導体部が配置されるフレキシブル基板と、が設けられた超音波探触子と、
前記超音波探触子の超音波の送受信を制御する制御部と、
を有し、
前記半導体チップの前記電極パッドにおける前記フレキシブル基板の前記接続用導体部と接続する接続面の高さは、前記半導体チップの前記下部電極の下面の高さより低く、
前記フレキシブル基板は、その表裏面に開口した開口部を備えており、
前記開口部に、前記半導体チップの前記超音波トランスデューサが形成された凸部が配置されている、超音波計測装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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