JP6810280B2 - 積層型量子コンピューティングデバイスにおける回路要素の集積 - Google Patents
積層型量子コンピューティングデバイスにおける回路要素の集積 Download PDFInfo
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- JP6810280B2 JP6810280B2 JP2019550195A JP2019550195A JP6810280B2 JP 6810280 B2 JP6810280 B2 JP 6810280B2 JP 2019550195 A JP2019550195 A JP 2019550195A JP 2019550195 A JP2019550195 A JP 2019550195A JP 6810280 B2 JP6810280 B2 JP 6810280B2
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- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
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- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/065—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00
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- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
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- H01L23/5225—Shielding layers formed together with wiring layers
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- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
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- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
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- H01L2224/13099—Material
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Description
102 第1のチップ
104 第2のチップ
106 バンプボンド
108 ギャップ
122 超伝導キュビット
124 キュビット読み出しデバイス
126 パッド要素
128 共振器要素
130 細長アーム、制御ワイヤ
132 パッド
134 読み出し領域
202 第1のチップ
204 第2のチップ
214 超伝導体接地面、接地面の部分
216 誘電体層
218 遮蔽層
220a 側壁
220b 側壁
222a キュビット、超伝導キュビットの部分
222b キュビット、超伝導キュビットの部分
222c キュビット、超伝導キュビットの部分
224a キュビット読み出しデバイス
224b キュビット読み出しデバイス
226a パッド要素
226b パッド要素
228a 共振器要素
228b 共振器要素
230 配線要素
302 第1のチップ
304 第2のチップ
314 超伝導体接地面、接地面の部分
316 誘電体層
318 遮蔽層
320 バンプボンド
322a キュビット、超伝導キュビットの部分
324 キュビット読み出しデバイス
326 ビア
328 接触パッド
330 配線要素
404 チップ
415 側壁
416 誘電体層
418 第2の超伝導体層
424 第1の超伝導体層
426 ビア
428 接触パッド
430 配線要素
450 キュビット読み出し要素
460 キュビット制御要素
502 チップ
504 第1の超伝導体層
506 制御ワイヤ
508 誘電体層
510 第2の超伝導体層
512 側壁
518 キュビット読み出し要素
602 チップ
604 第1の超伝導体層
606 超伝導体材料の層
608 超伝導体材料の層
610 超伝導体材料の層
612 誘電体材料の層
614 誘電体材料の層
616 誘電体材料の層
618 誘電体材料の層
620 ビアインターコネクト
622 ビアインターコネクト
624 ビアインターコネクト
626 ビアインターコネクト
628 最上層
630 キュビット制御要素
632 遮蔽層
Claims (21)
- 第1の誘電体基板と、
前記第1の誘電体基板上の超伝導キュビットと
を含む第1のチップと、
前記第1のチップに結合された第2のチップであって、
第2の誘電体基板と、
前記第2の誘電体基板上のキュビット読み出し要素と、
前記第2の誘電体基板上の制御ワイヤと、
前記制御ワイヤを覆う誘電体層と、
前記誘電体層を覆う遮蔽層と
を含む第2のチップと
を含み、
前記遮蔽層は、前記制御ワイヤからの電磁場と前記超伝導キュビットからの電磁場とを互いに干渉しないように隔離することによって、前記第2のチップ上の前記制御ワイヤと前記第1のチップ上の前記超伝導キュビットとの間のクロストークを低減するように配置されている、デバイス。 - 前記誘電体層は、前記キュビット読み出し要素を露出させる開口を含む、請求項1に記載のデバイス。
- 前記誘電体層は、約1GHzと約10GHzとの間の周波数で約10−5より大きい損失正接を有する誘電体材料を含む、請求項1または2に記載のデバイス。
- 前記超伝導キュビットは読み出し領域を含み、
前記キュビット読み出し要素は前記超伝導キュビットの前記読み出し領域と重なる、請求項1から3のいずれか一項に記載のデバイス。 - 前記キュビット読み出し要素は、パッド要素に電気的に結合された共振器要素を含み、前記共振器要素が前記超伝導キュビットの前記読み出し領域と重なることなく、前記パッド要素は前記超伝導キュビットの前記読み出し領域と重なる、請求項4に記載のデバイス。
- 前記第1のチップは超伝導体接地面を含み、前記共振器要素は前記超伝導体接地面と重なる、請求項5に記載のデバイス。
- 前記誘電体層は、
前記誘電体層の表面から前記誘電体層を通って前記制御ワイヤまで延びるビアと、
前記ビア内にあり、前記制御ワイヤに電気的に結合されたインターコネクトと、
前記誘電体層の前記表面上にあり、前記インターコネクトに電気的に結合された制御接点と
を含む、請求項1から6のいずれか一項に記載のデバイス。 - 前記制御接点は前記遮蔽層によって横方向に囲まれ、前記遮蔽層から物理的に分離されている、請求項7に記載のデバイス。
- 前記制御接点は前記超伝導キュビットと重なる、請求項7または8に記載のデバイス。
- 前記制御接点は、前記超伝導キュビットと重なることなく、前記超伝導キュビットから横方向にずれている、請求項7から9のいずれか一項に記載のデバイス。
- 前記遮蔽層は前記誘電体層の側壁を覆っている、請求項1から10のいずれか一項に記載のデバイス。
- 前記キュビット読み出し要素、前記制御ワイヤ、および前記遮蔽層のそれぞれは超伝導体である、請求項1から11のいずれか一項に記載のデバイス。
- 前記第2のチップは、複数の制御ワイヤと、複数の誘電体層とを含み、
前記複数の制御ワイヤは前記複数の誘電体層内に埋め込まれ、
前記遮蔽層は前記複数の誘電体層を覆っている、
請求項1から12のいずれか一項に記載のデバイス。 - 前記第1のチップは前記第2のチップにバンプボンディングされている、請求項1から13のいずれか一項に記載のデバイス。
- 第1の誘電体基板と、
前記第1の誘電体基板上の超伝導キュビットと
を含む第1のチップを提供するステップと、
第2のチップを提供するステップであって、
第2の誘電体基板を提供するステップと、
前記第2の誘電体基板上に第1の超伝導体層を形成するステップと、
前記第1の超伝導体層が制御ワイヤを含むように前記第1の超伝導体層をパターニングするステップと、
前記制御ワイヤを含む前記第1の超伝導体層上に誘電体層を形成するステップと、
前記誘電体層をパターニングしてパターニングされた誘電体層を提供するステップと、
前記パターニングされた誘電体層上に第2の超伝導体層を形成するステップと、
前記第2の超伝導体層と前記第1の超伝導体層とをパターニングしてキュビット読み出し要素および遮蔽層を提供するステップと
を含む、ステップと、
前記第2のチップを前記第1のチップに結合するステップと
を含み、
前記遮蔽層は、前記制御ワイヤからの電磁場と前記超伝導キュビットからの電磁場とを互いに干渉しないように隔離することによって、前記第2のチップ上の前記制御ワイヤと前記第1のチップ上の前記超伝導キュビットとの間のクロストークを低減するように配置される、方法。 - 前記誘電体層をパターニングするステップは、前記誘電体層にビアを形成して前記制御ワイヤの一部を露出させるステップであって、前記ビアは前記誘電体層の表面から前記制御ワイヤの露出した前記一部まで延びる、ステップを含む、請求項15に記載の方法。
- 前記第2の超伝導体層を形成するステップは、前記ビア内にインターコネクトを形成するステップであって、前記インターコネクトは前記制御ワイヤの露出した前記一部と接触する、ステップを含む、請求項16に記載の方法。
- 前記第2の超伝導体層をパターニングするステップは、前記誘電体層の前記表面上に制御接点を形成するステップを含む、請求項17に記載の方法。
- 前記キュビット読み出し要素が前記超伝導キュビットと重なるように結合する前に、前記第2の誘電体基板を前記第1のチップに位置合わせするステップ
をさらに含む、請求項15に記載の方法。 - 第1のチップを第2のチップに結合する方法であって、
前記第1のチップを提供するステップであって、前記第1のチップは、第1の誘電体基板と、前記第1の誘電体基板上の超伝導キュビットとを含む、ステップと、
前記第2のチップを提供するステップであって、前記第2のチップは、第2の誘電体基板と、前記第2の誘電体基板上のキュビット読み出し要素と、前記第2の誘電体基板上の制御ワイヤと、前記制御ワイヤを覆う誘電体層と、前記誘電体層を覆う遮蔽層とを含む、ステップと、
超伝導体バンプボンドで前記第1のチップを前記第2のチップに結合するステップと
を含み、
前記遮蔽層は、前記制御ワイヤからの電磁場と前記超伝導キュビットからの電磁場とを互いに干渉しないように隔離することによって、前記第2のチップ上の前記制御ワイヤと前記第1のチップ上の前記超伝導キュビットとの間のクロストークを低減するように配置される、方法。 - 第1の誘電体基板と、
前記第1の誘電体基板上の超伝導キュビットと
を含む第1のチップと、
前記第1のチップに結合された第2のチップであって、
第2の誘電体基板と、
前記第2の誘電体基板上の第1の超伝導体層であって、前記第1の超伝導体層の第1の領域がキュビット読み出し要素を形成し、前記第1の超伝導体層の第2の領域がキュビット制御要素を形成する、第1の超伝導体層と、
前記第1の超伝導体層の前記第2の領域上の誘電体層と、
前記キュビット制御要素の一部を露出させるための前記誘電体層内のビアであって、前記誘電体層の表面から前記キュビット制御要素の露出した前記一部まで延びる、ビアと、
前記誘電体層上の第2の超伝導体層であって、前記第2の超伝導体層は前記ビア内にインターコネクトを形成し、前記インターコネクトは、前記キュビット制御要素の露出した前記一部に接触し、前記第2の超伝導体層は、前記インターコネクトから電気的に隔離された遮蔽層を形成する、第2の超伝導体層と
を含む第2のチップと
を含み、
前記遮蔽層は、前記キュビット制御要素からの電磁場と前記超伝導キュビットからの電磁場とを互いに干渉しないように隔離することによって、前記第2のチップ上の前記キュビット制御要素と前記第1のチップ上の前記超伝導キュビットとの間のクロストークを低減するように配置されている、量子コンピューティング回路デバイス。
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US11436516B2 (en) | 2022-09-06 |
EP3852021B1 (en) | 2024-07-31 |
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