JP4425774B2 - 垂直電界効果トランジスタ、それによる垂直電界効果トランジスタの製造方法及びそれを備える平板ディスプレイ装置 - Google Patents
垂直電界効果トランジスタ、それによる垂直電界効果トランジスタの製造方法及びそれを備える平板ディスプレイ装置 Download PDFInfo
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Description
Kudoら、「Thin Solid Fims,Vol 331(1998),pp51〜54」 Stutzmannら、「Science Vol 299(2003),pp1881〜1884」
2…ソース電極、
3…有機半導体材料、
4…電荷キャリア遮断層、
5…ゲート電極、
6…ドレイン電極、
8…絶縁層、
10…誘電体マトリックス材料、
13…ナノ粒子。
Claims (13)
- 基板の上部に第1電極を形成する段階と、
前記第1電極の一面上に絶縁層を形成する段階と、
前記絶縁層の上部に、誘電体材料に金属ナノ粒子が散在した誘電体マトリックスを形成する段階と、
前記誘電体マトリックスを選択的にエッチングして前記金属ナノ粒子と前記金属ナノ粒子の下部に配置された前記絶縁層を残して非連続的なゲート電極を形成する段階と、
前記非連続的なゲート電極の外面を熱酸化、プラズマ酸化または陽極酸化して前記非連続的なゲート電極の外面に電荷キャリア遮断層を形成する段階と、
少なくとも前記非連続的なゲート電極の非連続部を埋め込むように有機半導体層を形成する段階と、
前記有機半導体層及び前記非連続的なゲート電極の上部に第2電極を形成する段階と、
を含むことを特徴とする垂直電界効果トランジスタの製造方法。 - 前記第1電極はソース電極であり、前記第2電極はドレイン電極であることを特徴とする請求項1に記載の垂直電界効果トランジスタの製造方法。
- 前記金属ナノ粒子は、Cr、Alのうち一つ以上であり、前記誘電体材料はSiO x であることを特徴とする請求項1に記載の垂直電界効果トランジスタの製造方法。
- 前記誘電体マトリックスは、前記金属ナノ粒子と誘電体材料とをカバー蒸着させることによって製造されることを特徴とする請求項1に記載の垂直電界効果トランジスタの製造方法。
- 基板の上部に第1電極を形成する段階と、
前記第1電極の一面上に絶縁層を形成する段階と、
前記絶縁層の上部に、ゲート電極の形成材料で連続的なゲート電極を形成する段階と、
前記連続的なゲート電極の上部に、マスクとしてのナノ粒子を配置する段階と、
少なくとも前記連続的なゲート電極及び前記絶縁層の一部をエッチングする段階と、
前記マスクとしてのナノ粒子を除去して、非連続的なゲート電極を形成する段階と、
前記非連続的なゲート電極の外面を熱酸化、プラズマ酸化または陽極酸化して前記非連続的なゲート電極の外面に電荷キャリア遮断層を形成する段階と、
少なくとも前記非連続的なゲート電極の非連続部を埋め込むように有機半導体層を形成する段階と、
前記有機半導体層及び前記非連続的なゲート電極の上部に第2電極を形成する段階と、
を含むことを特徴とする垂直電界効果トランジスタの製造方法。 - 基板の上部に第1電極を形成する段階と、
前記第1電極の一面上に絶縁層を形成する段階と、
前記絶縁層の上部に、ゲート電極の形成材料で連続的なゲート電極を形成する段階と、
ナノ粒子サスペンションによって少なくとも前記絶縁層及び前記連続的なゲート電極にグルーブを形成して非連続的なゲート電極を構造化させ、非連続的なゲート電極を形成する段階と、
前記非連続的なゲート電極の外面を熱酸化、プラズマ酸化または陽極酸化して前記非連続的なゲート電極の外面に電荷キャリア遮断層を形成する段階と、
少なくとも前記非連続的なゲート電極の非連続部を埋め込むように有機半導体層を形成する段階と、
前記有機半導体層及び前記非連続的なゲート電極の上部に第2電極を形成する段階と、
を含むことを特徴とする垂直電界効果トランジスタの製造方法。 - 前記第1電極の形成段階及び第2電極の形成段階は、高真空での気体蒸着またはスパッタリングを通じてなされ、
前記有機半導体層の形成段階は、高真空での気体蒸着または溶液からのスピンコーティングを通じてなされることを特徴とする請求項1ないし6のうち何れか1項に記載の垂直電界効果トランジスタの製造方法。 - 前記絶縁層の形成段階は、高真空での気体蒸着、スパッタリングまたは化学気相蒸着を通じてなされることを特徴とする請求項1ないし6のうち何れか1項に記載の垂直電界効果トランジスタの製造方法。
- 基板と、
前記基板の一面の上部に形成された第1電極と、
前記第1電極の一面の少なくとも一部に形成された絶縁層と、
前記絶縁層の一面上に、金属ナノ粒子より構成された非連続的に形成されるゲート電極と、
前記ゲート電極の外表面上に形成され、前記ゲート電極の外表面が酸化されて非連続的に形成された電荷キャリア遮断層としての非連続的な酸化層と、
前記非連続的な酸化層間及び前記絶縁層間に配置される有機半導体層と、
前記非連続的な酸化層及び前記有機半導体層の上部に形成される第2電極と、を含むことを特徴とする垂直電界効果トランジスタ。 - 前記ゲート電極は、Al及びCrのうち一つ以上を含むことを特徴とする請求項9に記載の垂直電界効果トランジスタ。
- 基板と、
前記基板の一面の上部に形成された薄膜トランジスタ層と、
前記薄膜トランジスタ層の一面上に形成された薄膜トランジスタ絶縁層と、
前記薄膜トランジスタ絶縁層に形成されたビアホールを通じて電気的に連結される、一つ以上の画素を備える画素層と、を含む平板ディスプレイ装置であって、
前記薄膜トランジスタ層には一つ以上の垂直電界効果トランジスタが備わるが、前記垂直電界効果トランジスタは、
前記基板の一面の上部に形成された第1電極と、
前記第1電極の一面の少なくとも一部に形成された絶縁層と、
前記絶縁層の一面上に、金属ナノ粒子より構成された非連続的に形成されるゲート電極と、
前記ゲート電極の外表面上に形成され、前記ゲート電極の外表面が酸化されて非連続的に形成された電荷キャリア遮断層としての非連続的な酸化層と、
前記非連続的な酸化層間及び前記絶縁層間に配置される有機半導体層と、
前記非連続的な酸化層及び前記有機半導体層の上部に形成される第2電極と、を含むことを特徴とする平板ディスプレイ装置。 - 前記ゲート電極は、Al及びCrのうち一つ以上を含むことを特徴とする請求項11に記載の平板ディスプレイ装置。
- 前記画素層に備わる画素の少なくとも一部は、
前記薄膜トランジスタ層と電気的に連結される第1電極層と、
前記第1電極層の一面上に形成される電界発光部と、
少なくとも前記電界発光部の上部に形成される第2電極層と、を含むことを特徴とする請求項11に記載の平板ディスプレイ装置。
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