Patents Assigned to Renesas Electronics Coporation
  • Patent number: 8692383
    Abstract: To achieve a reduction in cost of a semiconductor device, in a common board (a wiring board), a plurality of bonding leads each extend toward the center of the board, and a solder resist film as a die bonding region supporting a minimum chip is coated with a die bonding material. With this, even when a first semiconductor chip as a large chip is mounted, wire bonding can be performed without causing the die bonding material to cover the bonding leads. Thus, development cost can be reduced to reduce the cost of the semiconductor device (LGA).
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: April 8, 2014
    Assignee: Renesas Electronics Coporation
    Inventors: Soshi Kuroda, Kenya Hironaga, Hironori Matsushima, Masatoshi Yasunaga, Akira Yamazaki
  • Patent number: 8455925
    Abstract: To provide a structure of a semiconductor device that realizes an increase in a capacitor capacitance of a memory circuit to the maximum while inhibiting an increase in a contact resistance of a logic circuit, and a manufacture method thereof. When designating the number of layers of the local interconnect layers having wiring that makes up a logic circuit area as M and designating the number of layers of the local interconnect layers having wiring that makes up the memory circuit as N (M and N are natural numbers and satisfy M>N), capacitance elements are provided over the interconnect layers comprised of (M?N) layers or (M?N+1) layers.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: June 4, 2013
    Assignee: Renesas Electronic Coporation
    Inventors: Masashige Moritoki, Takamasa Itou, Takashi Ogura, Tsutomu Himukai, Shigeaki Shimizu
  • Patent number: 8238142
    Abstract: In a multipart SRAM memory cell of the present invention, an access transistor of a first port is disposed in a p-type well, and an access transistor of a second port is disposed in a p-type well. The gates of all of transistors disposed in a memory cell extend in the same direction. With the configuration, a semiconductor memory device having a low-power consumption type SRAM memory cell with an increased margin of variations in manufacturing, by which a bit line can be shortened in a multiport SRAM memory cell or an associative memory, can be obtained.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: August 7, 2012
    Assignee: Renesas Electronics Coporation
    Inventor: Koji Nii
  • Patent number: 8144523
    Abstract: A semiconductor storage device in accordance with an exemplary aspect of the present invention includes a plurality of memory cells arranged in a matrix pattern, a plurality of word lines each provided so as to correspond to each line of the memory cells, a plurality of bit lines each connected to respective one of the memory cells, and a row selection circuit that, in a read operation, drives the word line to a set potential at a drive speed slower than a discharge speed of the bit line exhibited when the word line is raised roughly vertically to VDD.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: March 27, 2012
    Assignee: Renesas Electronics Coporation
    Inventor: Hiroyuki Kobatake