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    • 4. 发明申请
    • 分割型受光素子および回路内蔵型受光素子および光ディスク装置
    • 分接式光接收元件和电路内部接收光元件和光盘设备
    • WO2003009397A1
    • 2003-01-30
    • PCT/JP2002/006707
    • 2002-07-03
    • シャープ株式会社森岡 達也林田 茂樹谷 善彦大久保 勇
    • 森岡 達也林田 茂樹谷 善彦大久保 勇
    • H01L31/10
    • H01L31/103
    • A plurality of N−type diffusion layers (105, 108) are formed a specified distance apart on a P−type semiconductor layer (102). A P−type leak prevention layer (109) formed between at least N−type diffusion layers (105, 108) prevents leaking between the diffusion layers (105, 108). A dielectric film (115) is formed in at least a light incident area on a P−type semiconductor layer (102) including the diffusion layers (105, 108) and the leak prevention layer (109). Accordingly, provided are a split type light receiving element positively functioning as a split type light receiving element even when charge is accumulated in the dielectric film and having a uniform sensitivity throughout the entire area on a light receiving surface, and a circuit−built−in light receiving element and an optical disk using the split type light receiving element.
    • 多个N型扩散层(105,108)在P型半导体层(102)上隔开规定距离地形成。 形成在至少N型扩散层(105,108)之间的P型防漏层(109)防止扩散层(105,108)之间的泄漏。 在包括扩散层(105,108)和防漏层(109)的P型半导体层(102)的至少一个光入射区域中形成介电膜(115)。 因此,即使在电介质膜中积累电荷并且在光接收表面上的整个区域具有均匀的灵敏度的情况下,提供了作为分割型光接收元件的分体式光接收元件,并且电路内置 光接收元件和使用分离式光接收元件的光盘。
    • 5. 发明申请
    • 受光素子、回路内蔵型受光装置および光ディスク装置
    • 受光素子,回路内蔵型受光装置および光ディスク装置
    • WO2003054973A1
    • 2003-07-03
    • PCT/JP2002/012906
    • 2002-12-10
    • シャープ株式会社林田 茂樹森岡 達也谷 善彦大久保 勇和田 秀夫
    • 林田 茂樹森岡 達也谷 善彦大久保 勇和田 秀夫
    • H01L31/0216
    • H01L31/103H01L31/02161
    • A light receiving element comprising a first P type diffusion layer (101), and a P type semiconductor layer (102) formed on a silicon substrate (100), wherein two N type diffusion layers (103, 103) are provided as light receiving parts on the surface part of the P type semiconductor layer (102) and a second P type diffusion layer (104) is provided between the two light receiving parts. An antireflection film structure (106) comprising a first silicon oxide film (107) formed by thermal oxidation and a second silicon oxide film (108) formed by CVD is provided on the P type semiconductor layer (102). Defect between the first silicon oxide film (107) and the P type semiconductor layer (102) is prevented by setting the thickness of the first silicon oxide film (107) at about 15 nm, and leak current between cathodes is prevented when a power supply voltage is applied continuously for a long time by setting the thickness of the second silicon oxide film (108) at about 100 nm.
    • 本发明涉及一种光辐射接收元件,其包括形成在硅衬底(100)上的第一P型扩散层(101)和P型半导体层(102),其中两层 N型散射(103,103)构成P型半导体层(102)表面上的光辐射接收部分,以及设置在该两部分之间的第二P型扩散层(104) 接收光辐射。 包括第一热氧化氧化硅膜(107)和第二化学气相沉积氧化硅膜(108)的抗反射膜结构(106)在所述层 P型半导体(102)。 通过将第一氧化硅膜(107)的厚度调整到大约15μm来防止第一氧化硅膜(107)与P型半导体层(102)之间的故障形成 nm,并且通过将第二氧化硅膜(108)的厚度调节至大约100nm,当长时间连续施加电源电压时阴极之间的漏电流 。