JP6415602B2 - 機能セルのコンパクトアレイを形成するための技術 - Google Patents
機能セルのコンパクトアレイを形成するための技術 Download PDFInfo
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Description
図3Aは、本開示の一実施形態に係る、格子状の複数の拡散ライン122及び複数のゲートライン124上に形成された3つの機能セル132、134、136を含む例示的なIC構造300を示す。機能セル132、134、136は、例えば、FPGA若しくは他の論理デバイスの複数の論理セル、又は、SRAM若しくは他のメモリデバイスの複数のビットセルであってよい。格子状の拡散金属及びゲート金属、又は他の適切な格子の材料を使用して供給され得る他の複数の機能セルが当該開示に照らし明らかであろう。図から分かるように、複数の拡散ライン122及び複数のゲートライン124は基板110上に形成される。基板110は、半導体基板、又は絶縁体基板などの任意の適切な基板であってよい。例えば、基板300としては、シリコン(Si)、ゲルマニウム(Ge)、シリコンゲルマニウム(SiGe)、1又は複数のIII‐V材料、ガラス、酸化物材料(例えば二酸化シリコン)、窒化物材料(例えば、窒化シリコン)、及び/又は任意の他の適切な半導体若しくは絶縁体材料が挙げられてよい。いくつかの実施形態において、基板110は、バルク基板、セミコンダクタ・オン・インシュレータ(XOI、ここで、Xは、Si、Ge、若しくはSiGeなどの半導体材料)、又は多層構造として構成されてよい。他の適切な基板材料及び/又は構成が、所与の目的用途又は最終用途に依存し、当該開示に照らし明らかであろう。
図6は、一例示的実施形態に係る、本明細書において開示された複数の技術を使用して形成された集積回路(IC)の複数の構造又は複数のデバイスが実装されたコンピューティングシステム1000を示している。図から分かるように、コンピューティングシステム1000はマザーボード1002を収容している。マザーボード1002は、限定はされないが、プロセッサ1004と少なくとも1つの通信チップ1006とを含むいくつかのコンポーネントを含んでよい。それらの各々は、マザーボード1002に物理的かつ電気的に接続される、又はそうでなければマザーボード1002に統合され得る。理解されるように、それがメインボード、メインボードに搭載されたドーターボード、又はシステム1000の唯一のボード等であるかないかに関わらず、マザーボード1002は、例えば任意のプリント回路基板であってよい。
以下の例は更なる複数の実施形態に関連し、それらから多数の変形及び構成が明らかであろう。
Claims (25)
- 基板と、
前記基板上に形成された格子状の複数の拡散ライン及び複数のゲートラインであり、格子に含まれる前記複数の拡散ラインのうちの少なくとも3つはそれらの間に一貫する間隔を有する、複数の拡散ライン及び複数のゲートラインと、
格子状の前記複数の拡散ライン及び前記複数のゲートライン上に形成された複数の機能セルのアレイであり、前記複数の機能セルのアレイは、それらの間に一貫する間隔を有する前記少なくとも3つの拡散ライン上に少なくとも一部が形成された2つの隣接する機能セルである隣接セルを含み、各セルは、境界を有し、前記2つの隣接セルの前記境界の間には拡散ラインはなく、それにより、前記2つの隣接セルのうちの1つは、前記少なくとも3つの拡散ラインのうちの2つを含み、前記2つの隣接セルのうちのほかは、前記少なくとも3つの拡散ラインのうちの1又は複数を含む、複数の機能セルのアレイと、
を備え、
前記アレイ内の前記2つの隣接セルの前記境界の間の距離は50nmより小さい、
集積回路。 - 前記基板は、シリコン(Si)及びゲルマニウム(Ge)のうちの少なくとも一方を含む、請求項1に記載の集積回路。
- 前記アレイ内の前記2つの隣接セルの前記境界の間の前記距離は20nmより小さい、請求項1に記載の集積回路。
- 前記複数の機能セルは、複数のゲートアレイ論理セル及び複数のメモリビットセルのうちの少なくとも一方を含む、請求項1に記載の集積回路。
- 前記2つの隣接セルに含まれる前記複数のゲートラインは、更に、それらの間に一貫する間隔を有し、
前記2つの隣接セルの前記境界の間にはゲートラインは存在しない、請求項1に記載の集積回路。 - 複数の機能セルの前記アレイは、前記複数の機能セルの複数の前記境界を形成すべく193nmフォトリソグラフィを使用して形成され得る最も高い密度の実効構造より10パーセントから50パーセント高密度である、請求項1に記載の集積回路。
- 基板と、
前記基板から延びる格子状の複数の拡散ラインであり、格子に含まれる前記複数の拡散ラインのうちの少なくとも3つはそれらの間に一貫する間隔を有する、複数の拡散ラインと、
それらの間に一貫する間隔を有する格子に含まれる前記3つの拡散ライン上に少なくとも一部が形成される2つの隣接する機能セルである隣接セルを含む複数の機能セルのアレイであり、各セルは、境界を有し、前記2つの隣接セルの前記境界の間には拡散ラインはなく、それにより、前記2つの隣接セルのうちの1つは、前記少なくとも3つの拡散ラインのうちの2つを含み、前記2つの隣接セルのうちのほかは、前記少なくとも3つの拡散ラインのうちの1又は複数を含む、複数の機能セルのアレイと、
を備え、
前記アレイ内の前記2つの隣接セルの前記境界の間の距離は50nmより小さく、
前記アレイは、前記複数の機能セルの複数の前記境界を形成すべく193nmフォトリソグラフィを使用して形成され得る最も高い密度の実効構造より10パーセントから50パーセント高密度である、集積回路。 - 請求項1から7の何れか一項に記載の集積回路を備える、フィールドプログラマブルゲートアレイ(FPGA)デバイス。
- 請求項1から7の何れか一項に記載の集積回路を備える、スタティックランダムアクセスメモリ(SRAM)デバイス。
- 請求項1から7の何れか一項に記載の集積回路を備える、コンピューティングシステム。
- 基板を設ける段階と、
複数の拡散ラインを形成する段階と、
複数のゲートラインを形成する段階であって、前記複数の拡散ラインと前記複数のゲートラインは格子状構造で形成される、段階と、
前記格子状構造上にレジストを形成する段階と、
サブ100nmクリティカルディメンジョンを有する複数のレジストフィーチャを実現でき、1又は0個のマスクを必要とするリソグラフィプロセスを使用して複数の機能セルの境界を形成すべく前記レジストをパターニングする段階であって、前記複数の機能セルはアレイ内に配置される、段階と、
パターンを前記格子状構造の中にエッチングして、前記複数の機能セルのアレイを前記格子状構造の前記複数の拡散ラインと前記複数のゲートライン上に形成する段階であって、前記複数の機能セルのアレイは、それらの間に一貫する間隔を有する少なくとも3つの拡散ライン上に少なくとも一部が形成された2つの隣接する機能セルである隣接セルを含み、各セルは、境界を有し、前記2つの隣接セルの前記境界の間には拡散ラインはなく、それにより、前記2つの隣接セルのうちの1つは、前記少なくとも3つの拡散ラインのうちの2つを含み、前記2つの隣接セルのうちのほかは、前記少なくとも3つの拡散ラインのうちの1又は複数を含む、段階と、
を備える集積回路を形成する方法。 - 前記複数の機能セルは、複数のゲートアレイ論理セル及び複数のメモリビットセルのうちの少なくとも一方を含む、請求項11に記載の方法。
- 前記リソグラフィプロセスは電子ビームリソグラフィである、請求項11に記載の方法。
- 前記電子ビームリソグラフィはマルチビームを含む、請求項13に記載の方法。
- 前記リソグラフィプロセスはマスクレスである、請求項11に記載の方法。
- 前記リソグラフィプロセスは極端紫外線リソグラフィ(EUVL)である、請求項11に記載の方法。
- 前記リソグラフィプロセスはナノインプリントリソグラフィである、請求項11に記載の方法。
- 前記リソグラフィプロセスは、サブ30nmクリティカルディメンジョンを有する複数のレジストフィーチャを実現できる、請求項11から17の何れか一項に記載の方法。
- 前記リソグラフィプロセスは、サブ10nmクリティカルディメンジョンを有する複数のレジストフィーチャを実現できる、請求項11から17の何れか一項に記載の方法。
- 基板を設ける段階と、
前記基板上に複数の拡散ライン及び複数のゲートラインを格子状構造で形成する段階と、
前記格子状構造上にレジストを形成する段階と、
複数の機能セルの境界を形成すべくリソグラフィプロセスを使用して前記レジストをパターニングする段階であって、2つの隣接する機能セルである隣接セルの前記境界の間の距離は50nmより小さい、段階と、
パターンを前記格子状構造の中にエッチングして、前記2つの隣接セルを含む複数の機能セルのアレイを前記格子状構造の前記複数の拡散ラインと前記複数のゲートライン上に形成する段階であって、前記2つの隣接セルは、それらの間に一貫する間隔を有する少なくとも3つの拡散ライン上に少なくとも一部が形成され、各セルは、境界を有し、前記2つの隣接セルの前記境界の間には拡散ラインはなく、それにより、前記2つの隣接セルのうちの1つは、前記少なくとも3つの拡散ラインのうちの2つを含み、前記2つの隣接セルのうちのほかは、前記少なくとも3つの拡散ラインのうちの1又は複数を含む、段階と、
を備える、複数の機能セルのアレイを形成する方法。 - 前記複数の機能セルは、複数のゲートアレイ論理セル及び複数のメモリビットセルのうちの少なくとも一方を含む、請求項20に記載の方法。
- 前記リソグラフィプロセスは電子ビームリソグラフィである、請求項20に記載の方法。
- 前記電子ビームリソグラフィはマルチビームを含む、請求項22に記載の方法。
- 前記リソグラフィプロセスはマスクレスである、請求項20から23の何れか一項に記載の方法。
- 前記リソグラフィプロセスは極端紫外線リソグラフィ(EUVL)である、請求項20に記載の方法。
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