JP6302265B2 - デュアルモードトランジスタデバイス及びその動作方法 - Google Patents
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Description
Claims (15)
- 複数のトランジスタ構造体であって、それぞれ、
チャネル領域、該チャネル領域の第1の側に隣接するp型端子領域、及び前記チャネル領域の第2の側に隣接するn型端子領域を含む半導体本体と、
前記チャネル領域を覆う前記半導体本体の表面上のゲート絶縁体と、
前記チャネル領域を覆う前記ゲート絶縁体上のゲートと、
前記p型端子領域に隣接する前記チャネル領域の部分を覆う、前記ゲートの第1の側に配置される前記ゲート絶縁体上の第1のアシストゲート及び前記n型端子領域に隣接する前記チャネル領域の部分を覆う、前記ゲートの第2の側に配置される前記ゲート絶縁体上の第2のアシストゲートと、を含む、複数のトランジスタ構造体と、
前記複数のトランジスタ構造体内の前記アシストゲートに結合される回路であって、nチャネルモードの場合、前記トランジスタ構造体のうちの幾つかのトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに正電圧を印加し、pチャネルモードの場合、前記トランジスタ構造体のうちの他のトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに負電圧を印加する、回路と、
を備える、デバイス。 - 基板上に絶縁層を含み、前記複数のトランジスタ構造体の前記半導体本体は、前記基板に配置され、前記絶縁層により前記基板から絶縁される、請求項1に記載のデバイス。
- 前記半導体本体の下において前記絶縁層内に導電体を含み、該導電体は、前記複数のトランジスタ構造体の前記チャネル領域の下にあるバックゲートとして構成される、請求項2に記載のデバイス。
- 前記導電体に結合される回路を含み、該回路は、電圧を前記導電体に印加して、前記複数のトランジスタ構造体の閾値電圧を制御する、請求項3に記載のデバイス。
- 前記複数のトランジスタ構造体のうちの少なくとも1つにおいて、前記第1のアシストゲートは前記第2のアシストゲートに電気的に接続される、請求項1〜4のいずれか一項に記載のデバイス。
- 前記複数のトランジスタ構造体のうちの第1のトランジスタ構造体は、前記複数のトランジスタ構造体のうちの第2のトランジスタ構造体に電気的に接続され、前記アシストゲートに結合される回路は、前記第1のトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに正電圧を印加し、前記第2のトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに負電圧を印加する、請求項1〜5のいずれか一項に記載のデバイス。
- チャネル領域、該チャネル領域の第1の側に隣接するp型端子領域、及び前記チャネル領域の第2の側に隣接するn型端子領域を含む半導体本体、並びに、ゲートの両側に配置される第1のアシストゲート及び第2のアシストゲートのそれぞれを含む複数のトランジスタ構造体を備える回路を動作させる方法であって、
前記複数のトランジスタ構造体のうちの幾つかのトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに正電圧を供給し、
前記複数のトランジスタ構造体のうちの他のトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに負電圧を供給する、
方法。 - 前記複数のトランジスタ構造体のうちの前記幾つかのトランジスタ構造体をnチャネルトランジスタとして動作させ、
前記複数のトランジスタ構造体のうちの前記他のトランジスタ構造体をpチャネルトランジスタとして動作させる、
請求項7に記載の方法。 - 前記複数のトランジスタ構造体のうちの少なくとも1つのトランジスタ構造体にバックゲートバイアスを印加する、請求項7に記載の方法。
- デュアルモードトランジスタデバイスを製造する方法であって、
チャネル領域、該チャネル領域の第1の側に隣接するp型端子領域、及び前記チャネル領域の第2の側に隣接するn型端子領域を含む半導体本体を形成し、
前記チャネル領域を覆って前記半導体本体の表面上にゲート絶縁体を形成し、
前記チャネル領域を覆って前記ゲート絶縁体上にゲートを形成し、
前記p型端子領域に隣接する前記チャネル領域の部分を覆う、前記ゲートの第1の側に配置される前記ゲート絶縁体上の第1のアシストゲート及び前記n型端子領域に隣接する前記チャネル領域の部分を覆う、前記ゲートの第2の側に配置される前記ゲート絶縁体上の第2のアシストゲートを形成し、
前記複数のトランジスタ構造体内の前記第1のアシストゲート及び前記第2のアシストゲートに結合されて、nチャネルモードの場合に前記トランジスタ構造体のうちの幾つかのトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに正電圧を印加し、pチャネルモードの場合に前記トランジスタ構造体のうちの他のトランジスタ構造体の前記第1のアシストゲート及び前記第2のアシストゲートに負電圧を印加する回路を提供する、デュアルモードトランジスタデバイスを製造する方法。 - 前記半導体本体を基板の絶縁層上に形成し、前記半導体本体は、前記絶縁層によって前記基板から絶縁される、請求項10に記載の方法。
- 前記チャネル領域の下において前記絶縁層内にバックゲートを形成する、請求項11に記載の方法。
- 前記第2のアシストゲートに電気的に接続される前記第1のアシストゲートを形成する、請求項10〜12のいずれか一項に記載の方法。
- 複数のフィンを前記半導体本体の前記チャネル領域にパターニングする、請求項10〜13のいずれか一項に記載の方法。
- チャネル領域、該チャネル領域の第1の側に隣接するp型端子領域、及び前記チャネル領域の第2の側に隣接するn型端子領域を含む半導体ストリップと、
前記チャネル領域において前記半導体ストリップに沿って直列に配置される複数のゲートと、
前記半導体ストリップの第1の端部に結合される第1の基準線及び前記半導体ストリップの第2の端部に結合される第2の基準線と、
前記第1の基準線及び前記第2の基準線に結合され、前記チャネル領域をnチャネルモード又はpチャネルモードに選択的にバイアスするように構成される電気回路と、
を備える、回路。
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