会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Ultra-high density memory device
    • 超高密度存储器件
    • US5940314A
    • 1999-08-17
    • US9304
    • 1998-01-20
    • Motofumi SuzukiTakeshi OhwakiYasunori TagaHiroshi TadanoTestu KachiYuichi TanakaKazuyoshi Tomita
    • Motofumi SuzukiTakeshi OhwakiYasunori TagaHiroshi TadanoTestu KachiYuichi TanakaKazuyoshi Tomita
    • G11B11/00G11B5/00G11B5/74G11B9/00G11B9/14G11B13/04H01L43/08G11C11/42
    • B82Y10/00G11B5/00G11B5/74G11B9/14G11B9/1409G11B13/04Y10S977/947
    • A ultra-high density memory device utilizing a photoinductive ferromagnetic thin film. A photoinductive ferromagnetic thin film is formed on a GaAs substrate, and a tip is arranged so as to face the photoinductive ferromagnetic thin film. The GaAs substrate is disposed on an xyz scanner, and the three-dimensional positional relationship between the GaAs substrate and the tip is changed by the xyz scanner. Blue light is radiated onto the thin film in order to make the magnetization orientation of molecules uniform. Through application of a relatively high voltage, a relatively large current is caused to flow between the tip and the substrate, so that randomization of the magnetization orientation of molecules of the photoinductive ferromagnetic thin film; i.e., writing operation is carried out. Also, through uniform radiation of circular polarized light onto the GaAs substrate and application of a relatively low voltage, tunneling current is caused to flow between the tip and the substrate, which tunneling current changes in accordance with the magnetization orientation of molecules of the photoinductive ferromagnetic thin film. Through detection of the tunneling current, the magnetization orientation of molecules of the photoinductive ferromagnetic thin film can be detected.
    • 一种利用感光铁磁性薄膜的超高密度存储器件。 在GaAs衬底上形成感光铁磁性薄膜,并且将顶端配置为面对感光性铁磁性薄膜。 GaAs衬底设置在xyz扫描器上,并且通过xyz扫描器改变GaAs衬底和尖端之间的三维位置关系。 将蓝光照射到薄膜上,以使分子的磁化取向均匀。 通过施加相当高的电压,使得相对较大的电流在尖端和衬底之间流动,从而使感光铁磁性薄膜的分子的磁化取向随机化; 即执行写入操作。 此外,通过将均匀的圆偏振光辐射到GaAs衬底上并施加相对低的电压,引起隧道电流在尖端和衬底之间流动,该隧道电流根据感光铁磁体的分子的磁化方向而改变 薄膜。 通过检测隧道电流,可以检测感光铁磁性薄膜的分子的磁化取向。
    • 8. 发明授权
    • Static induction type semiconductor device
    • 静电感应式半导体器件
    • US4998149A
    • 1991-03-05
    • US181102
    • 1988-04-13
    • Hiroshi TadanoTomoyoshi Kushida
    • Hiroshi TadanoTomoyoshi Kushida
    • H01L29/74H01L29/739H01L29/80
    • H01L29/7392
    • Disclosed is an improvement of a static induction type semiconductor device which includes an anode region provided at one surface portion of a semiconductor substrate, a cathode region provided on the other surface portion, a gate region adjacent to the cathode region and a low impurity density region formed at an intermediate portion of the semiconductor substrate. A cathode short region is provided at a position opposite to the cathode region with the gate region therebetween so as to be conducted to the cathode region, thereby quickening the injection of charge at the time of turn-on and draw up of charge at the time of turn-off, and enabling high-speed on and off operation.
    • 公开了一种静电感应型半导体器件的改进,其包括设置在半导体衬底的一个表面部分处的阳极区域,设置在另一个表面部分上的阴极区域,与阴极区域相邻的栅极区域和低杂质浓度区域 形成在半导体衬底的中间部分。 阴极短区域设置在与阴极区域相对的位置处,栅极区域在它们之间,以便被传导到阴极区域,从而在接通时加快电荷的注入并在此时提取电荷 的关闭,并实现高速开关运行。
    • 9. 发明授权
    • Semiconductor device with multiple recombination center layers
    • 具有多个复合中心层的半导体器件
    • US4752818A
    • 1988-06-21
    • US912578
    • 1986-09-26
    • Tomoyoshi KushidaHiroshi TadanoYoshio Nakamura
    • Tomoyoshi KushidaHiroshi TadanoYoshio Nakamura
    • H01L29/32H01L29/739H01L29/744H01L29/74
    • H01L21/263H01L29/32H01L29/7391H01L29/7392H01L29/744
    • A semiconductor device comprises two main electrode regions, i.e., cathode and anode regions consisting of high impurity concentration regions of opposite conductivity types, a low impurity concentration region locally formed between the two main electrode regions, a gate region, formed near the cathode region, for controlling a main current, a first local region which has a relatively low carrier lifetime and is formed in a region of the low impurity concentration region near at least one of the gate and cathode regions, and a second local region which has a relatively low carrier lifetime and is formed in a region of the low impurity concentration region which is depleted at the end of the main current turn-off process or which is not depleted to the end, thus satisfying three conditions, i.e., high-speed switching, low forward voltage drop, and high blocking voltage between the main electrodes at the same time.
    • 半导体器件包括两个主电极区域,即由相对导电类型的高杂质浓度区域组成的阴极和阳极区域,局部形成在两个主电极区域之间的低杂质浓度区域,在阴极区域附近形成的栅极区域, 用于控制主电流的第一局部区域,具有相对低的载流子寿命并且形成在栅极和阴极区域中的至少一个附近的低杂质浓度区域的区域中,以及具有相对较低的第二局部区域 载流子寿命,形成在低电流关断过程结束时耗尽的或不耗尽的低杂质浓度区域的区域,因此满足三个条件,即高速切换,低 正向电压降,主电极之间的高阻断电压。