JP6260998B2 - 積層型半導体装置 - Google Patents
積層型半導体装置 Download PDFInfo
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- JP6260998B2 JP6260998B2 JP2014078676A JP2014078676A JP6260998B2 JP 6260998 B2 JP6260998 B2 JP 6260998B2 JP 2014078676 A JP2014078676 A JP 2014078676A JP 2014078676 A JP2014078676 A JP 2014078676A JP 6260998 B2 JP6260998 B2 JP 6260998B2
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Description
図1Aは、従来技術による積層型半導体装置の構成例を示す俯瞰図である。図1Bは、従来技術による積層型半導体装置の構成例を示す、図1Aに示した断面線A−Aによる断面図である。
外部から供給される外部電源電圧に対して、内部回路用の降圧電圧や昇圧電圧などを半導体装置内部で発生させる場合には、半導体チップごとに降圧回路や昇圧回路などが設けられて、所望の内部電源電圧が生成される。したがって、半導体装置において安定して供給すべき電源電圧は、外部電源電圧に限らない。半導体装置の機能を実現する内部回路への内部電源電圧の安定供給こそ、外部電源電圧の安定供給に勝るとも劣らず重要である。
図2Aは、第1実施形態による積層型半導体装置の構成例を示す俯瞰図である。図2Bは、第1実施形態による積層型半導体装置の構成例を示す、図2Aに示した断面線B−Bによる断面図である。
図3Aは、第2実施形態による積層型半導体装置の構成例を示す俯瞰図である。図3Bは、第2実施形態による積層型半導体装置の構成例を示す、図3Aに示した断面線B−Bによる断面図である。
図4Aは、第3実施形態による積層型半導体装置の構成例を示す俯瞰図である。図4Bは、第3実施形態による積層型半導体の構成例を示す、図4Aに示した断面線B−Bによる断面図である。
図5は、第4実施形態による積層型半導体装置の構成例を示す断面図である。なお、図5に示した構成例による積層型半導体装置の俯瞰図は、図2Aに示した第1実施形態の場合と同様であるので、ここでは省略する。
図6は、第5実施形態による積層型半導体装置の構成例を示す断面図である。なお、図6に示した構成例による積層型半導体装置の俯瞰図は、図2Aに示した第1実施形態の場合と同様であるので、ここでは省略する。
111 外部第1電源配線
112 外部第1電源バンプ
113 外部第1電源端子
121 外部第2電源配線
122 外部第2電源バンプ
123 外部第2電源端子
132 信号バンプ
20−1〜20−N コアチップ
210 外部第1電源貫通電極
211 外部第1電源配線
212 外部第1電源バンプ
213 外部第1電源端子
220 外部第2電源貫通電極
221 外部第2電源配線
222 外部第2電源バンプ
223 外部第2電源端子
23 基準電圧生成回路
231 基準電圧配線
24 内部電源生成回路
241 内部電源配線
25 内部回路
30 基板(またはインターポーザ)
311 外部第1電源配線
312 外部第1電源バンプ
313 外部第1電源端子
321 外部第2電源配線
322 外部第2電源バンプ
323 外部第2電源端子
332 信号バンプ
341 内部電源配線
342 容量
363 外部第3電源端子
40−1〜40−N コアチップ
410 外部第1電源貫通電極
411 外部第1電源配線
412 外部第1電源バンプ
413 外部第1電源端子
420 外部第2電源貫通電極
421 外部第2電源配線
422 外部第2電源バンプ
423 外部第2電源端子
43 基準電圧生成回路
430 基準電圧貫通電極
431 基準電圧配線
432 基準電圧バンプ
433 基準電圧端子
44 内部電源生成回路
440 内部電源貫通電極
441 内部電源配線
442 内部電源バンプ
443 内部電源端子
444 メタル層
45 内部回路
460 外部第3電源上面側電極
461 外部第3電源下面側電極
462 外部第3電源バンプ
463 外部第3電源端子
50−1〜50−N バンク
51 入出力回路
511 データ入出力端子
52 入出力回路
521 ロウアドレス入出力端子
522 クロック入出力端子
523 カラムアドレス入出力端子
531 データ制御回路
532 カラム制御回路
533 ロウ制御回路
541〜543 内部電源生成回路
551〜553 内部電源配線
561 カラムデコーダ
562 センスアンプ
563 ロウデコーダ
571 メモリセルアレイ
572 ワード線
573 ビット線
574 メモリセル
Claims (10)
- 基板と、
前記基板上に、前記基板の平面方向に対する上下方向に積層された複数のコアチップと
を具備し、
前記複数のコアチップのそれぞれは、
内蔵された内部回路に向けて供給される内部電源電圧を生成する内部電源生成回路と、
前記内部電源生成回路の出力を前記複数のコアチップの間で共有する内部電源貫通電極と
を具備し、
前記それぞれのコアチップが有する前記内部電源貫通電極は、
前記コアチップの上面に設けられた内部電源端子と、
前記コアチップの下面に設けられて、かつ、前記複数のコアチップが積層される際に前記上面の前記内部電源端子の位置に対応する位置に設けられた内部電源バンプと
を具備する
積層型半導体装置。 - 請求項1に記載の積層型半導体装置において、
前記それぞれのコアチップは、
基準電圧を生成する基準電圧生成回路と、
前記基準電圧生成回路の出力を前記複数のコアチップの間で共有する基準電圧貫通電極と
をさらに具備し、
前記それぞれのコアチップが有する前記基準電圧貫通電極は、
前記コアチップの上面に設けられた基準電圧端子と、
前記コアチップの下面に設けられて、かつ、前記複数のコアチップが積層される際に前記上面の前記基準電圧端子の位置に対応する位置に設けられた基準電圧バンプと
を具備する
積層型半導体装置。 - 請求項2に記載の積層型半導体装置において、
前記基板は、
外部から供給される外部第1電源電圧を前記複数のコアチップに供給する外部第1電源端子と、
外部から供給される外部第2電源電圧を前記複数のコアチップに供給する外部第2電源端子と、
前記外部第1電源電圧を前記複数のコアチップに供給する外部第3電源端子と
を具備し、
前記それぞれのコアチップは、
直下のコアチップまたは基板から直上のコアチップに前記外部第1電源電圧を伝達する外部第1電源貫通電極と、
直下のコアチップまたは基板から直上のコアチップに前記外部第2電源電圧を伝達する外部第2電源貫通電極と、
前記外部第2電源貫通電極に接続され、直上のコアチップに前記外部第2電源電圧を伝達する外部第3電源上面側電極と、
直下の基板からは前記外部第3電源端子から供給される前記外部第1電源電圧を入力し、直下のコアチップからは前記外部第3電源上面側電極から伝達される前記外部第2電源電圧を入力する外部第3電源下面側電極と
をさらに具備し、
前記それぞれのコアチップにおいて、前記基準電圧生成回路は、前記外部第2電源貫通電極および前記外部第3電源下面側電極から供給される電源に応じて前記基準電圧の生成を実行または停止する
積層型半導体装置。 - 請求項3に記載の積層型半導体装置において、
前記基板は、
一方の端が前記内部電源バンプに接続されて、かつ、他方の端が前記外部第2電源端子に接続されている容量
を含む
積層型半導体装置。 - 請求項1に記載の積層型半導体装置において、
前記それぞれのコアチップは、
前記コアチップの平面に設けられて、かつ、前記内部電源バンプに接続されたメタル層をさらに具備する
積層型半導体装置。 - 請求項1に記載の積層型半導体装置において、
前記それぞれのコアチップは、
複数の前記内部電源電圧をそれぞれ生成する複数の前記内部電源生成回路と、
前記複数の内部電源生成回路の出力にそれぞれ接続された複数の前記内部電源貫通電極と
をさらに具備する
積層型半導体装置。 - 請求項1〜6のいずれかに記載の積層型半導体装置を含み、
前記それぞれのコアチップは、
前記内部電源電圧を供給されて動作する記憶回路
をさらに具備する
積層型半導体装置。 - 請求項7に記載の積層型半導体記憶装置において、
前記記憶回路は、
コアチップごとに切り替え可能なメモリバンクに対応するメモリアドレス
を有する
積層型半導体装置。 - 請求項2に記載の積層型半導体装置において、
前記基板は、
外部から供給される外部第1電源を前記複数のコアチップに供給する第1基板電源端子と、
外部から供給される外部第2電源を前記複数のコアチップに供給する第2基板電源端子と、
前記外部第1電源を前記複数のコアチップに供給する第3基板電源端子と
を具備し、
前記それぞれのコアチップは、
前記コアチップの下面に設けられ、前記第1基板電源端子、前記第2基板電源端子および前記第3基板電源端子とそれぞれ平面的な位置が一致する第1電源バンプ、第2電源バンプおよび第3電源バンプと、
前記コアチップの上面に設けられ、前記第1電源バンプ、前記第2電源バンプおよび前記第3電源バンプとそれぞれ平面的な位置が一致する第1電源端子、第2電源端子および第3電源端子と、
前記第1電源バンプおよび前記第1電源端子を接続する第1電源貫通電極と、
前記第2電源バンプおよび前記第2電源端子を接続する第2電源貫通電極と
を具備し、
前記第3電源端子は、前記第2電源貫通電極に接続され、
前記基準電圧生成回路は、前記第2電源バンプおよび前記第3電源バンプを介して供給される電圧を電源電圧とする
積層型半導体装置。 - 前記内部電源バンプは、前記基板上に設けられた端子から絶縁されている
請求項1に記載の積層型半導体装置。
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