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    • 2. 发明申请
    • PROCESS FOR FABRICATING SEMICONDUCTOR DEVICES
    • 制造半导体器件的工艺
    • WO1991001568A1
    • 1991-02-07
    • PCT/JP1990000821
    • 1990-06-25
    • OKI ELECTRIC INDUSTRY CO., LTD.HIRASHITA, Norio
    • OKI ELECTRIC INDUSTRY CO., LTD.
    • H01L21/28
    • H01L21/76886H01L21/28518
    • A process for fabricating semiconductor devices such as MOS integrated circuits, in which a plurality of diffusion layers formed by doping a substrate with impurities at high concentration are connected together using a high-melting metal silicide. A silicon layer (108) under a non-doped layer is formed on the substrate (100) to be processed, and a high-melting metal layer (109) is formed on the silicon layer (108). The high-melting metal layer (109) is reacted with the silicon layer (108) to form the high-melting metal silicide (112) that connect the diffusion layers together. Thus, the high-melting metal silicide layer (112) can be stably formed suppressing the junction leakage as low as possible.
    • 用于制造诸如MOS集成电路的半导体器件的工艺,其中通过使用高熔点金属硅化物将以高浓度的杂质掺杂的衬底形成的多个扩散层连接在一起。 在待加工的基板(100)上形成非掺杂层下的硅层(108),在硅层(108)上形成高熔点金属层(109)。 高熔点金属层(109)与硅层(108)反应形成将扩散层连接在一起的高熔点金属硅化物(112)。 因此,可以稳定地形成高熔点金属硅化物层(112),以尽可能低地抑制结漏电。
    • 3. 发明申请
    • INPUT/OUTPUT PROTECTIVE CIRCUIT
    • 输入/输出保护电路
    • WO1994010705A1
    • 1994-05-11
    • PCT/JP1993001557
    • 1993-10-28
    • OKI ELECTRIC INDUSTRY CO., LTD.KATAKURA, YoshiakiFUKUDA, Yasuhiro
    • OKI ELECTRIC INDUSTRY CO., LTD.
    • H01L29/784
    • H01L27/0251
    • The cathode of an input protective diode (40) is connected directly to the drain (30D) of an input protective MOS transistor (30). The source (30S), the gate (30G), and the anode of the input protection diode (40) are grounded. Thus, overvoltage inputted from the external terminal is received by the cathode of the diode (40) and the drain (30D) before such a voltage is transferred to the internal circuit of a semiconductor device. Hence there is no increase in the junction capacitance of the input protective diode due to the pattern of the diode (40). The voltage value at which the input protective MOS transistor (30) conducts can be lowered because the input protective diode (40) breaks down by overvoltage before it reaches the internal circuit. As a result, it is possible to achieve reliable input protection at a high speed. Also, since the input terminal can be connected directly to the drain (30D) of the input protective MOS transistor (30), the input protective circuit shown is applicable to an output protection circuit and an output MOS transistor, thus making it possible to protect the internal output circuit reliably.
    • 输入保护二极管(40)的阴极直接连接到输入保护MOS晶体管(30)的漏极(30D)。 源极(30S),栅极(30G)和输入保护二极管(40)的阳极接地。 因此,在将这样的电压传送到半导体器件的内部电路之前,从外部端子输入的过电压被二极管(40)的阴极和漏极(30D)接收。 因此,由于二极管(40)的图案,输入保护二极管的结电容没有增加。 由于输入保护二极管(40)在到达内部电路之前由于过电压而损坏,所以输入保护MOS晶体管(30)导通的电压值可能降低。 结果,可以高速地实现可靠的输入保护。 此外,由于输入端子可以直接连接到输入保护MOS晶体管(30)的漏极(30D),因此所示的输入保护电路可应用于输出保护电路和输出MOS晶体管,从而可以保护 内部输出电路可靠。
    • 4. 发明申请
    • ERROR CORRECTING ENCODER, ERROR CORRECTING DECODER, AND COMMUNICATION SYSTEM
    • 编码器错误校正,错误修正解码器和通信系统
    • WO1997015120A1
    • 1997-04-24
    • PCT/JP1996002985
    • 1996-10-15
    • OKI ELECTRIC INDUSTRY CO., LTD.ITOH, KatsutoshiHOSODA, Kenichiro
    • OKI ELECTRIC INDUSTRY CO., LTD.
    • H03M13/00
    • H03M13/35H04L2001/0098
    • The error detecting and correcting ability in signal transmission is improved without lowering the transmission efficiency. When a classifying circuit (101) receives information symbols from a voice encoding device, the classifying circuit (101) classifies the symbols according to a classifying definition and feeds the information symbols of the most important class 0 to a CRC calculating circuit (102) and a blocking circuit (103), feeds the information symbols of the second important class 1 to a blocking circuit (105), and feeds the information symbols of the third important class 1 directly to an interleave circuit (107). The CRC calculating circuit (102) finds error detecting information about the information symbols of class 1 fed from the classifying circuit (101), generates data to which the error detecting information is added, and feeds the data to the class-0 blocking circuit (103). The circuit (103) encodes an error-corrected block from the data including the error detecting information and class-0 data.
    • 在不降低传输效率的情况下,提高了信号传输中的误差检测和纠正能力。 当分类电路(101)从语音编码装置接收信息符号时,分类电路(101)根据分类定义对符号进行分类,并将最重要类别0的信息符号馈送到CRC计算电路(102)和 阻塞电路(103)将第二重要类别1的信息符号馈送到分块电路(105),并将第三重要类别1的信息符号直接馈送到交织电路(107)。 CRC计算电路(102)发现关于从分类电路(101)馈送的类别1的信息符号的错误检测信息,生成添加了错误检测信息的数据,并将数据馈送到0类阻塞电路 103)。 电路(103)从包括错误检测信息和0类数据的数据中对错误校正的块进行编码。
    • 5. 发明申请
    • BIT ERROR COUNTER AND ITS COUNTING METHOD, AND SIGNAL IDENTIFYING DEVICE AND ITS IDENTIFYING METHOD
    • 位错误计数器及其计数方法和信号识别装置及其识别方法
    • WO1994000915A1
    • 1994-01-06
    • PCT/JP1993000831
    • 1993-06-21
    • OKI ELECTRIC INDUSTRY CO., LTD.ABE, Masami
    • OKI ELECTRIC INDUSTRY CO., LTD.
    • H03M13/12
    • H04L1/208H03M13/00H03M13/23H03M13/3961H03M13/41H04L1/20
    • A device and method for counting bit errors in the received signal in digital communication, and a device and method for judging whether received signal is aural signal or control signal and for outputting identification signal, the number of errors, and decoded signal. Generally in bit error counters, there is a problem that an exact error rate cannot be calculated if an error that is incorrectable is included in a decoded signal. To overcome the problem, a status monitoring unit (22) is provided, which outputs a predetermined error rate utilizing information in the decoding process if an error is included in the decoded signal. Further, an error detection unit (28) is provided, which outputs a predetermined error rate if an error is included in the decoded signal. In identification devices, there is a problem that signal cannot be identified if an error that is undetectable is included, because the kind of the input signal is identified based on the result of error detection. To solve this problem, a signal identification unit (1206) is provided, which identifies the input signal based on the error detection result, the decoding result, and the number or errors.
    • 一种用于对数字通信中的接收信号中的比特错误进行计数的装置和方法,以及用于判断接收信号是听觉信号还是控制信号并用于输出识别信号,误差数目和解码信号的装置和方法。 通常在位错误计数器中,存在如下问题:如果解码信号中包含不正确的错误,则不能计算精确的错误率。 为了克服这个问题,提供了状态监视单元(22),如果在解码信号中包含错误,则利用解码处理中的信息输出预定的错误率。 此外,提供错误检测单元(28),如果解码信号中包含错误,则输出预定的错误率。 在识别装置中,由于根据错误检测结果来识别输入信号的种类,所以存在不能识别出不可检测的误差的信号的问题。 为了解决这个问题,提供了一种信号识别单元(1206),其基于错误检测结果,解码结果以及数量或错误来识别输入信号。