JP7123813B2 - 半導体装置、固体撮像素子、並びに電子機器 - Google Patents
半導体装置、固体撮像素子、並びに電子機器 Download PDFInfo
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Description
図5は、本技術の実施の形態である電子機器の構成例を示している。なお、図1に示された従来構成と共通する構成要素については同一の符号を付しているので、その説明は適宜省略する。
次に、図5に示された本技術の実施の形態である電子機器の製造方法について、図6乃至図10を参照して説明する。
次に、図11は、本技術の実施の形態である固体撮像素子の第1の構成例の断面図を示している。
本開示に係る技術(本技術)は、様々な製品へ応用することができる。例えば、本開示に係る技術は、内視鏡手術システムに適用されてもよい。
本開示に係る技術(本技術)は、様々な製品へ応用することができる。例えば、本開示に係る技術は、自動車、電気自動車、ハイブリッド電気自動車、自動二輪車、自転車、パーソナルモビリティ、飛行機、ドローン、船舶、ロボット等のいずれかの種類の移動体に搭載される装置として実現されてもよい。
(1)
所定の回路が形成されている第1半導体基板と、
前記第1半導体基板と貼り合わされた第2半導体基板と、
前記第1半導体基板と前記第2半導体基板とを電気的に接続する貫通電極と
を備え、
前記貫通電極は、前記第1半導体基板内に形成されている保護ダイオード構造を貫いてスルーホールが開口され、前記スルーホールの側壁に絶縁膜が堆積され、前記絶縁膜が堆積されている前記スルーホール内側に電極材が充填されて形成されている
半導体装置。
(2)
前記貫通電極は、前記第1半導体基板に形成されているP型またはN型の一方のウェル領域と、前記ウェル領域に積層して形成されている前記P型またはN型の他方の拡散層とから成る前記保護ダイオード構造を貫いてスルーホールが開口され、前記スルーホールの側壁に絶縁膜が堆積され、前記絶縁膜が堆積されている前記スルーホール内に電極材が充填されて形成されている
前記(1)に記載の半導体装置。
(3)
前記保護ダイオード構造は、前記貫通電極毎に形成されている
前記(1)または(2)に記載の半導体装置。
(4)
前記ウェル領域に積層して形成されている前記P型またはN型の他方の拡散層は、前記貫通電極毎に個別に設けられたSTIの凹状部分に形成されている
前記(2)または(3)に記載の半導体装置。
(5)
所定の回路が形成されている第1半導体基板と、
前記第1半導体基板と貼り合わされた第2半導体基板と、
前記第1半導体基板と前記第2半導体基板とを電気的に接続する貫通電極と
を備える半導体装置の製造方法において、
前記第1半導体基板にP型またはN型の一方の拡散層を形成し、前記拡散層の上層に前記P型またはN型の他方のウェル領域を積層することによって保護ダイオード構造を形成し、
前記保護ダイオード構造が形成された前記第1半導体基板と前記第2半導体基板とを貼り合わせ、
前記第1半導体基板側から前記保護ダイオード構造を貫いてスルーホールを開口し、
開口された前記スルーホールの側壁に絶縁膜を堆積し、
前記絶縁膜が堆積された前記スルーホール内側に電極材を充填することにより前記貫通電極を形成する
製造方法。
(6)
光電変換素子および画素トランジスタが少なくとも形成されている第1半導体基板と、
前記第1半導体基板と貼り合わされた第2半導体基板と、
前記第1半導体基板と前記第2半導体基板とを電気的に接続する貫通電極と
を備え、
前記貫通電極は、前記第1半導体基板内に形成されている保護ダイオード構造を貫いてスルーホールが開口され、前記スルーホールの側壁に絶縁膜が堆積され、前記絶縁膜が堆積されている前記スルーホール内側に電極材が充填されて形成されている
固体撮像素子。
(7)
半導体装置が搭載されている電子機器において、
前記半導体装置は、
所定の回路が形成されている第1半導体基板と、
前記第1半導体基板と貼り合わされた第2半導体基板と、
前記第1半導体基板と前記第2半導体基板とを電気的に接続する貫通電極と
を備え、
前記貫通電極は、前記第1半導体基板内に形成されている保護ダイオード構造を貫いてスルーホールが開口され、前記スルーホールの側壁に絶縁膜が堆積され、前記絶縁膜が堆積されている前記スルーホール内側に電極材が充填されて形成されている
電子機器。
Claims (5)
- 所定の回路が形成されている第1半導体基板と、
前記第1半導体基板と貼り合わされた第2半導体基板と、
前記第1半導体基板と前記第2半導体基板とを電気的に接続し、前記第1半導体基板内に設けられている配線と接続されている貫通電極と
を備え、
前記第1半導体基板は、
前記配線と、
前記配線を含む絶縁膜層と、
前記絶縁膜層に積層されている第1不純物の第1の層と、
前記第1の層と前記絶縁膜層との間に位置し、かつ前記絶縁膜層と前記貫通電極との間に位置し、前記第1不純物と導電性が逆タイプの第2不純物の第2の層と
を備え、
前記貫通電極は、前記第1の層と前記第2の層を貫通し、前記絶縁膜層の前記配線まで設けられ、
前記第2の層は、電位が固定されないフローティング状態である
半導体装置。 - 前記第1半導体基板に対して、前記第1不純物は、N型の不純物であり、前記第2不純物は、P型の不純物であるか、または前記第1不純物は、P型の不純物であり、前記第2不純物は、N型の不純物である
請求項1に記載の半導体装置。 - 前記貫通電極は、側壁に絶縁膜が堆積され、前記絶縁膜内に電極材が充填されている
請求項1に記載の半導体装置。 - 光電変換素子および画素トランジスタが少なくとも形成されている第1半導体基板と、
前記第1半導体基板と貼り合わされた第2半導体基板と、
前記第1半導体基板と前記第2半導体基板とを電気的に接続し、前記第1半導体基板内に設けられている配線と接続されている貫通電極と
を備え、
前記第1半導体基板は、
前記配線と、
前記配線を含む絶縁膜層と、
前記絶縁膜層に積層されている第1不純物の第1の層と、
前記第1の層と前記絶縁膜層との間に位置し、かつ前記絶縁膜層と前記貫通電極との間に位置し、前記第1不純物と導電性が逆タイプの第2不純物の第2の層と
を備え、
前記貫通電極は、前記第1の層と前記第2の層を貫通し、前記絶縁膜層の前記配線まで設けられ、
前記第2の層は、電位が固定されないフローティング状態である
固体撮像素子。 - 半導体装置が搭載されている電子機器において、
前記半導体装置は、
所定の回路が形成されている第1半導体基板と、
前記第1半導体基板と貼り合わされた第2半導体基板と、
前記第1半導体基板と前記第2半導体基板とを電気的に接続し、前記第1半導体基板内に設けられている配線と接続されている貫通電極と
を備え、
前記第1半導体基板は、
前記配線と、
前記配線を含む絶縁膜層と、
前記絶縁膜層に積層されている第1不純物の第1の層と、
前記第1の層と前記絶縁膜層との間に位置し、かつ前記絶縁膜層と前記貫通電極との間に位置し、前記第1不純物と導電性が逆タイプの第2不純物の第2の層と
を備え、
前記貫通電極は、前記第1の層と前記第2の層を貫通し、前記絶縁膜層の前記配線まで設けられ、
前記第2の層は、電位が固定されないフローティング状態である
電子機器。
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