JP7169387B2 - 高密度低バンド幅メモリと低密度高バンド幅メモリを組み合わせたメモリシステム - Google Patents
高密度低バンド幅メモリと低密度高バンド幅メモリを組み合わせたメモリシステム Download PDFInfo
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Description
以下の詳細な説明は、以下に簡単に記述する添付の図面を参照する。
Claims (14)
- 第1のタイプの第1のダイナミックランダムアクセスメモリ(DRAM)を含む1つ以上の第1の集積回路と、
前記1つ以上の第1の集積回路に積み重ねられて結合された第2の集積回路と、を備えるメモリであって、
前記第2の集積回路は、第2のタイプの第2のDRAMと、物理層回路とを含み、前記物理層回路を共用することによりメモリコントローラ内の第1の制御ブロック及び第2の制御ブロックが前記第1のDRAM及び前記第2のDRAMと通信している場合であっても、前記第1のDRAM及び前記第2のDRAMは、前記第1の制御ブロック及び前記第2の制御ブロックにより前記物理層回路を介して独立して制御される、メモリ。 - 前記1つ以上の第1の集積回路は、積み重ねられた複数の集積回路を備え、前記複数の集積回路は、前記物理層回路に結合されている、請求項1に記載されたメモリ。
- 前記複数の集積回路は、前記物理層回路への相互接続の一部分を形成しているシリコン貫通ビアを含む、請求項2に記載のメモリ。
- 前記第2のDRAMは、前記第1のDRAMよりも高いバンド幅を有し、前記第2のDRAMは、前記第1のDRAMよりも低いレイテンシを有する、請求項1に記載のメモリ。
- 前記第2のDRAM内の第2のメモリアレイは、前記第1のDRAM内の第1のメモリアレイより密度が低い、請求項1に記載のメモリ。
- メモリを備えるシステムであって、前記メモリは、
第1のタイプの第1のダイナミックランダムアクセスメモリ(DRAM)を含む1つ以上の第1の集積回路と、
前記1つ以上の第1の集積回路に積み重ねて結合された第2の集積回路であって、前記第2の集積回路は、第2のタイプの第2のDRAMと、物理層回路とを含む、第2の集積回路と、
前記第2の集積回路とともにパッケージングされた第3の集積回路であって、前記第3の集積回路は、前記物理層回路を共用する第1の制御ブロック及び第2の制御ブロックを含むメモリコントローラを備え、前記第1の制御ブロックは前記第1のDRAMを制御するように構成され、前記第2の制御ブロックは前記第2のDRAMを制御するように構成され、前記第1の制御ブロック及び前記第2の制御ブロックは、前記第1のDRAM及び前記第2のDRAMを独立して制御するように構成されている、第3の集積回路と、を備える、システム。 - 前記メモリコントローラは、前記第1のタイプの複数のDRAMからのデータを、前記第2のタイプの第2のDRAMにキャッシュするように構成されている、請求項6に記載のシステム。
- 前記第3の集積回路は、第2の物理層回路を含み、前記物理層回路は、前記第2の物理層回路に結合されている、請求項6に記載のシステム。
- 前記1つ以上の第1の集積回路は、積み重ねられた複数の集積回路を備え、前記複数の集積回路は、前記物理層回路に結合されている、請求項6に記載のシステム。
- 前記複数の集積回路は、前記物理層回路への相互接続の一部分を形成しているシリコン貫通ビアを含む、請求項9に記載のシステム。
- 前記第2のタイプのDRAMは、前記第1のタイプのDRAMより高いバンド幅を有し、前記第2のタイプのDRAMは、前記第1のタイプのDRAMより低いレイテンシを有する、請求項6に記載のシステム。
- 前記第2のDRAMの第2のメモリアレイは、前記第1のDRAMの第1のメモリアレイより低密度である、請求項6に記載のシステム。
- 物理層回路が、第1のタイプの第1のダイナミックランダムアクセスメモリ(DRAM)を含む1つ以上の第1の集積回路と、前記1つ以上の第1の集積回路に積み重ねて結合された第2の集積回路とを備えるメモリ内の前記第1のDRAM及び第2のDRAMと通信するステップであって、前記第2の集積回路は、第2のタイプの前記第2のDRAMと、前記物理層回路とを含む、ステップと、
前記通信するステップの間に、メモリコントローラ内の第1の制御ブロック及び第2の制御ブロックが、前記物理層回路を介して前記第1のDRAM及び前記第2のDRAMを独立して制御するステップであって、前記第1の制御ブロック及び前記第2の制御ブロックは、前記物理層回路を共用する、ステップと、を備える方法。 - 前記メモリコントローラが、前記第2のタイプのDRAMを、前記第1のタイプのDRAMのためのキャッシュとして動作させることを含む、請求項13に記載の方法。
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