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    • 2. 发明授权
    • SRAM memory cell having reduced surface area
    • 具有减小的表面积的SRAM存储单元
    • US6040991A
    • 2000-03-21
    • US225074
    • 1999-01-04
    • John J. Ellis-MonaghanWilbur D. Pricer
    • John J. Ellis-MonaghanWilbur D. Pricer
    • G11C11/412H01L21/8244H01L27/11G11C11/00
    • G11C11/412
    • A Static RAM cell having a reduced surface area. The Static RAM cell includes a pair of P channel transistors and a pair of N channel transistors connected as a bistable latch. A first common source connection of the latch is connected to a Write Bit terminal and the remaining source connections of the latch are connected to complementary bit lines. A word line addressing the latch is provided through the transistors connected to the Bit Lines having shared body contact which permits reading and writing to the latch. During a write mode, the word line is connected to a potential which renders transistors connected to the complementary bit lines conductive, while the write bit connected to a potential which renders the remaining transistors nonconducting. During a read operation, one of the remaining transistors are rendered conductive, and the word line renders the set of transistors connected to the Bit Lines conductive so that the bit Lines are charged from the respective nodes of the latch.
    • 具有减小的表面积的静态RAM单元。 静态RAM单元包括一对P沟道晶体管和作为双稳态锁存器连接的一对N沟道晶体管。 锁存器的第一个公共源极连接连接到写入位端,并且锁存器的其余源极连接连接到互补位线。 通过连接到具有共享体接触的位线的晶体管提供寻址锁存器的字线,其允许读取和写入锁存器。 在写入模式期间,字线连接到使连接到互补位线的晶体管导通的电位,而写入位连接到使剩余晶体管不导通的电位。 在读取操作期间,剩余晶体管中的一个导通,并且字线使连接到位线的晶体管组导通,使得位线从锁存器的相应节点充电。
    • 5. 发明授权
    • Built-in self-test method and structure
    • 内置自检方法和结构
    • US08890557B2
    • 2014-11-18
    • US13443450
    • 2012-04-10
    • Yoba AmoahJohn J. Ellis-MonaghanRoger C. KuoMolly J. LeitchZhihong Zhang
    • Yoba AmoahJohn J. Ellis-MonaghanRoger C. KuoMolly J. LeitchZhihong Zhang
    • G01R31/3187
    • G01R31/318511G01R31/2856G11C29/006G11C29/12G11C2029/1206
    • A method of testing a semiconductor wafer and a related structure. In various embodiments, a method includes: placing a probe on a first chip on the semiconductor wafer; testing a scribe line automatic built-in self-test (ABIST) for the first chip to search for a fault; progressively testing a subsequent scribe line ABIST for a subsequent chip on the semiconductor wafer in response to determining the ABIST for the first chip does not indicate the fault; moving the probe point to the subsequent chip and retesting the subsequent scribe line ABIST in response to determining the ABIST for the subsequent chip indicates a fault; and testing a further subsequent scribe line ABIST for a further subsequent chip on the semiconductor wafer in response to determining the retesting of the subsequent scribiline ABIST does not indicate a fault in the subsequent scribe line ABIST.
    • 一种半导体晶片的测试方法及相关结构。 在各种实施例中,一种方法包括:将探针放置在半导体晶片上的第一芯片上; 测试划线自动内置自检(ABIST)为第一芯片寻找故障; 响应于确定第一芯片的ABIST而对半导体晶片上的后续芯片进行随后的划线ABIST的逐步测试不表示故障; 将探针点移动到随后的芯片,并且响应于确定随后芯片的ABIST指示故障,重新测试随后的划线ABIST; 以及响应于确定随后的scribiline的重新测试,测试另一后续划线ABIST用于半导体晶片上的另外的后续芯片,ABIST不指示后续划线ABIST中的故障。