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    • 5. 发明授权
    • Sprinkler head and operation monitor therefor
    • 喷头和操作监视器
    • US5117916A
    • 1992-06-02
    • US682664
    • 1991-04-09
    • Tomohiro OhtaTakahiro Nakajima
    • Tomohiro OhtaTakahiro Nakajima
    • A62C37/10A62C37/21A62C37/50G08B17/02
    • G08B17/02A62C37/10A62C37/21A62C37/50
    • A sprinkler head of the present invention comprises a cover plate which is operated to fall down at a temperature lower than the operating temperature of the sprinkler head body and a switching unit provided on the body side of the sprinkler head so as to detect the falling of the cover plate and send a fire detection signal.A sprinkler head comprises a switching unit provided on the side of the sprinkler head body so as to send a fire detection signal when the unit is operated at a temperature lower than the operating temperature of the sprinkler head and send a sprinkler head operation signal when it is returned to a non-operating state by detection of the firewater discharged by the operation of the sprinkler head after the fire detection signal has been sent.An operation monitor for the sprinkler head of the present invention decides that the sprinkler head is operated and indicates the operation when it receives a sprinkler head operation signal from a switching unit provided on the sprinkler head and a detection signal from a water flow detector provided on piping extending to the sprinkler head.The structure in which the sprinkler head also serves as a fire detector enables a reduction of the cost of fire extinguishing equipment and the simplification of the installation work thereof, as well as an improvement in the appearance. It is also possible to detect the discharge of water from the sprinkler head without giving false information.
    • 本发明的喷水头包括盖板,该盖板在比喷洒头主体的操作温度低的温度下操作,以及设置在喷头的主体侧的切换单元,以便检测喷洒头的下落 盖板发送火灾探测信号。 喷洒头包括设置在喷头主体一侧的开关单元,以便当该单元在比喷洒头的操作温度低的温度下操作时发送火情检测信号,并且当喷头 在发送火灾检测信号之后,通过检测喷洒头的操作而排出的消防水,返回到非操作状态。 本发明的喷洒头的操作监视器判定喷洒头被操作并且当接收到来自设置在喷洒头上的切换单元的喷洒头操作信号和来自设置在喷洒头上的水流检测器的检测信号时,指示操作 管道延伸到喷头。 喷淋头也用作火灾探测器的结构能够降低灭火设备的成本和简化其安装工作以及外观的改善。 也可以在不给出虚假信息的情况下从喷头读出水分。
    • 10. 发明授权
    • Dielectric structure for anti-fuse programming element
    • 反熔丝编程元件的介质结构
    • US5521423A
    • 1996-05-28
    • US228257
    • 1994-04-15
    • Hiroshi ShinrikiTakeshi KaizukaTomohiro Ohta
    • Hiroshi ShinrikiTakeshi KaizukaTomohiro Ohta
    • H01L23/525H01L29/04H01L27/10H01L29/00
    • H01L23/5252H01L2924/0002
    • An antifuse element suitable for use in FPGA. When a device is miniaturized to reduce the write voltage in an antifuse element and as the film thickness of the antifuse dielectric film is being reduced, the dielectric breakdown voltage is greatly variable due to the irregularity of the underlying metal. If the dielectric film is formed by a metal oxide having a relatively high specific permitivity without changing its parasitic capacity as compared to the prior art, the film thickness of the dielectric film can be increased in comparison with oxide and nitride films formed according to the prior art. The irregularity of the underlying metal can be reduced by coating it with a metal nitride or TiB film or TiC film. To equalize the dielectric breakdown voltage, another insulation film having a film thickness such that the direct tunnel conduction is dominant is formed below the metal oxide. To reduce the irregularity of the metal surface and to reduce the resistance after dielectric breakdown, an amorphous silicon layer is deposited before the metal oxide is deposited thereover to form a laminated film.
    • 适用于FPGA的反熔丝元件。 当器件小型化以降低反熔丝元件中的写入电压时,并且由于反熔丝电介质膜的膜厚度正在减小,所以介电击穿电压由于下面的金属的不规则性而极大地变化。 如果与现有技术相比,电介质膜由具有相对高的比容容的金属氧化物形成而不改变其寄生电容,则与根据现有技术形成的氧化物和氮化物膜相比,电介质膜的膜厚可以增加 艺术。 可以通过用金属氮化物或TiB膜或TiC膜涂覆来降低底层金属的不规则性。 为了均衡绝缘击穿电压,具有膜厚度使得直接隧道导通为主的另一绝缘膜形成在金属氧化物的下面。 为了减少金属表面的不规则性并且在介电击穿之后降低电阻,在将金属氧化物沉积在其之前形成非晶硅层以形成层压膜。