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    • 14. 发明授权
    • Method for physical VLSI-chip design
    • 物理VLSI芯片设计方法
    • US4890238A
    • 1989-12-26
    • US133402
    • 1987-12-15
    • Klaus KleinKurt PollmannHelmut SchettlerUwe SchulzOtto M. WagnerRainer Zuehlke
    • Klaus KleinKurt PollmannHelmut SchettlerUwe SchulzOtto M. WagnerRainer Zuehlke
    • H01L21/82G06F17/50H01L21/822H01L27/04
    • G06F17/5072
    • For the physical design of a very large scale integration (VSLI) chip, a method is provided to implement a high density master image that contains logic and RAMs. In a hierarchical top-down design methodology, the circuitry to be contained on the chip is logically divided into partitions that are manageable by the present automatic design systems and programs. Global wiring connection lines are from the beginning included into the design of the different individual partitions and treated there in the same way as circuits in that area. Thus, the different partitions are designed in parallel. A floor plan is established that gives the different partitions a shape in such a way that they fit together without leaving any space between the different individual partitions. The chip need no extra space for global wiring and the partitions are immediately attached to each other. The master image described is very flexible with respect to logic, RAM, ROM and other macros, and it offers some of the advantages of semicustom gate arrays and custom macro design. The thus designed chip shows no global wiring avenues between the partitions and has partitions of different porosity.
    • 对于大规模集成(VSLI)芯片的物理设计,提供了一种实现包含逻辑和RAM的高密度主映像的方法。 在分层自顶向下的设计方法中,芯片上所包含的电路在逻辑上划分为可由当前自动设计系统和程序管理的分区。 全局接线连接线从一开始就包括在不同的分区设计中,并以与该区域的电路相同的方式进行处理。 因此,不同的分区是并行设计的。 建立了平面图,其给出不同分区的形状,使得它们在不在不同单独分区之间留下空间的情况下相配合。 该芯片不需要额外的空间用于全局布线,并且分区立即相互连接。 所描述的主图像对逻辑,RAM,ROM和其他宏非常灵活,并且提供半定制门阵列和定制宏设计的一些优点。 这样设计的芯片在分区之间没有显示全局布线通道,并具有不同孔隙度的分隔。