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    • 1. 发明授权
    • Magnetic head apparatus having projections extending from at least a
front side thereof
    • 磁头装置具有至少从其前侧延伸的凸起
    • US4894737A
    • 1990-01-16
    • US127947
    • 1987-12-02
    • Junji HamanaShinichi HaraMakoto Miyagi
    • Junji HamanaShinichi HaraMakoto Miyagi
    • G11B5/10G11B5/187G11B15/60G11B15/62G11B23/087
    • G11B5/10G11B15/602G11B15/62G11B23/08771G11B5/1871
    • This invention proposes to form a pair of protruding or projecting stripe portions along the tape-gliding face of magnetic tape and to reduce the pad pressure to magnetic tape thereby reducing the gliding resistance of magnetic tape without increasing its spacing loss (first embodiment), to incline the plane of the projecting stripe portions in a decreasing direction in the vicinity of the tape-gliding face in order to stabilize the pad contact (second embodiment), to form grooves on the tape-gliding face of the magnetic core in the transversal edge portions at least in the tape entrance side thereby facilitating prevention of tape squeaking (third embodiment), to increase the height of one of the projecting stripe portions in the vicinity of head mounting position compared to that of the other stripe portion thereby preventing one-sided abrasion of the tape-gliding face (fourth embodiment), and to form tape guide members on the magnetic head for guiding the magnetic tape closer to one of the projecting stripe portion at the head mounting position and separate from the other thereby preventing one-sided abrasion of the tape-gliding face (fifth embodiment).
    • 本发明提出沿着磁带的滑翔面形成一对突出或突出的条纹部分,并且将垫压力减小到磁带,从而降低磁带的滑动阻力而不增加其间隔损耗(第一实施例),至 为了稳定焊盘接触(第二实施例),在带滑动面附近沿着减小的方向倾斜突出条纹部分的平面,在横向边缘的磁芯的滑行面上形成槽 至少在磁带入口侧的部分,从而有利于防止磁带吱吱声(第三实施例),以增加磁头安装位置附近的一个突出条纹部分的高度与其他条纹部分的高度相比,从而防止单面 胶带滑行面的磨损(第四实施例),并且在磁头上形成带引导构件,用于将磁带引导到更靠近一个 的突出条纹部分在头部安装位置处并且彼此分离,从而防止带滑动面的单面磨损(第五实施例)。
    • 9. 发明授权
    • Semiconductor memory production system and semiconductor memory production method
    • 半导体存储器生产系统和半导体存储器生产方法
    • US06532182B2
    • 2003-03-11
    • US09811529
    • 2001-03-20
    • Sumio OgawaShinichi Hara
    • Sumio OgawaShinichi Hara
    • G11C700
    • H01L22/22H01L22/20H01L2924/0002Y02P90/10Y02P90/14H01L2924/00
    • A semiconductor memory production system is provided, capable of holding the data necessary for process analysis for each lot in chronological order using a small amount of information, and which enables production management based on data that has been stored previously without performing new measurements. The semiconductor memory production system comprises: an LSI tester 1 that tests semiconductor memory and outputs the addresses of memory cells for each chip and a pass/fail bitmap corresponding to these addresses, and a process defect estimating device 34 that extracts the bit addresses of fail bits from the bitmap, and determines replacement addresses of word lines and bit lines to be replaced by redundant word lines and redundant bit lines in the redundant memory section, and estimates process defects from statistical analysis of the distribution condition of each chip on each wafer. Through this estimated result, feedback to the manufacturing line/process step prevents from producing defects frequently.
    • 提供一种半导体存储器制造系统,其能够使用少量的信息按照时间顺序保存每个批次的处理分析所必需的数据,并且其能够基于先前已经存储的数据进行生产管理而不执行新的测量。 半导体存储器制造系统包括:LSI测试器1,其测试半导体存储器并输出每个芯片的存储单元的地址以及对应于这些地址的通过/失败位图;以及处理缺陷估计器34,其提取失败的位地址 并且确定要由冗余存储器部分中的冗余字线和冗余位线替换的字线和位线的替换地址,并且从每个晶片上每个芯片的分布条件的统计分析来估计处理缺陷。 通过这个估计结果,反馈到生产线/加工步骤防止频繁地产生缺陷。