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    • 2. 发明专利
    • Method for providing yield conditions, method for determining production conditions, method for fabricating semiconductor device and recording medium
    • 用于提供线条条件的方法,用于确定生产条件的方法,用于制造半导体器件和记录介质的方法
    • JP2002368056A
    • 2002-12-20
    • JP2001171572
    • 2001-06-06
    • Hitachi Ltd株式会社日立製作所
    • KAWAKAMI MEGUMIKANBARA SHIROSENTODA TAKESHIMIYAMA MIKAKO
    • H01L21/66H01L21/00
    • PROBLEM TO BE SOLVED: To analyze the factor for enhancing the yield with high precision in a short term.
      SOLUTION: Data of wafer inspection and probe inspection is pigeonholed and abnormal values are deleted (steps S101-S103), probe inspection terms are predicted (step S105) from the results of data mining (step S104), and the yield is predicted (step S106) from the results of the steps S103 and S105. A decision is then made whether correlation is present between the predicted value of yield and an actually measured value (steps S107, S108) and optimal conditions are determined from the order of influence of the yield (step S109). Trial manufacturing is performed for recognition if the conditions satisfy a target spectfication, otherwise splitting is performed for each category according to an orthogonal table (step S201), a semiconductor wafer is produced by way of trial according to trial production conditions thus obtained and abnormal values are deleted from probe inspection data (steps S202-S204), and then the conditions are optimized by analyzing the causes (steps S205, S206).
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:在短期内以高精度分析提高产量的因素。 解决方案:从数据挖掘的结果(步骤S104),晶片检查和探针检查的数据被排除并且异常值被删除(步骤S101-S103),探测检查项(步骤S105),并且预测产量(步骤 S106)的步骤S103和S105的结果。 然后,判定在预测的收益值与实际测量值之间是否存在相关性(步骤S107,S108),并根据收益的影响顺序确定最优条件(步骤S109)。 如果条件满足目标观察,则执行用于识别的试生产,否则根据正交表对每个类别进行分割(步骤S201),根据如此获得的试生产条件通过试验生产半导体晶片和异常值 (步骤S202〜S204),然后通过分析原因优化条件(步骤S205,S206)。
    • 6. 发明专利
    • METHOD OF MANUFACTURING SEMICONDUCTOR INTEGRATED CIRCUIT
    • JP2002353083A
    • 2002-12-06
    • JP2001153469
    • 2001-05-23
    • HITACHI LTD
    • MIYAMA MIKAKOKANBARA SHIROOJI YUZURUOKUYAMA KOSUKEKAWAKAMI MEGUMI
    • G06F17/50H01L21/02
    • PROBLEM TO BE SOLVED: To materialize the rise of the manufacture efficiency of an LSI or the reduction of manufacture cost, by integrating and utilizing the information about both design division and a manufacture division. SOLUTION: A computer unit (60) receives the input of the element property information of a semiconductor element from manufacture divisions (10-12) and also receives the input of design information of a semiconductor integrated circuit from manufacturing divisions (13-16) via a network, and creates the response information requested by a request source concerned, based on the above input information, in response to the request from the supply source of the above design information, and returns the created response information to the above request source. For example, the response information is the forecast yield information, at the time of having supposed that the semiconductor integrated circuit is constituted, making use of the element specified by the element property information. Hereby, the design division can be previously informed of the yield of products at the time of having placed an order with the manufacture division with products, and it becomes possible to properly select the manufacture division. The enhancement of the manufacture efficiency of LSI or the reduction of manufacture cost can be materialized by using the properly selected manufacture division.
    • 10. 发明专利
    • PROCESS SIMULATOR
    • JPH0697020A
    • 1994-04-08
    • JP24450792
    • 1992-09-14
    • HITACHI LTD
    • KANBARA SHIROMATSUO HITOSHISUGAYA MASAHIRO
    • H01L21/02G06F17/50G06F19/00H01L21/00H01L21/66G06F15/20G06F15/60
    • PURPOSE:To provide a process simulator wherein an optimum mesh structure according to a physical model formula used in each process element simulation can be selected. CONSTITUTION:A mesh generation routine which has been taken into a process simulator reads out a contour line at every layer constituting an element, a diffusion species distribution defined on a mesh point inside every layer and a mesh structure inside a user-generated mesh structure table 8 (1). It generates a fundamental mesh having a structure designated by the contour line in every layer (3). After that, it interpolates a diffusion species amount on the fundamental mesh point by the diffusion species distribution inside every layer which has been input (4). In addition, the fundamental mesh and the diffusion species amount which has been interpolated on the fundamental mesh point are used, and a mesh distribution is optimized by using a mesh optimization algorithm defined at every mesh structure (5). Thereby, an optimum mesh structure according to a physical model formula used to compute each simulation can be performed.