Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Master slice type integrated circuit system having block areas optimized based on function










Image Number 15 for United States Patent #5796129.

A master slice type gate array has a plurality of block areas. Each block area includes a plurality of basic cells arranged in a matrix. Different block areas have transistors with different channel widths. Within each of the block areas, a plurality of basic cells are connected to one another through a wiring layer to form function cells. First layer wirings for the function cells are completed within an area between rows of power source wirings Vdd and Vss of the first layer in the transverse direction. Contacts for connecting the sources and drains of P- and N-channel type MOS transistors to the first layer wirings are arranged in rows. Even if the channel widths are changed, the position of the contacts for forming the function cells and the wiring pattern remain unchanged for every block. Therefore, the master slice type gate array can be optimized for various performance parameters such as speed, integration, power consumption and other factors. As a result, the number of steps required to arrange the function cells can be reduced.








 
 
  Recently Added Patents
Comb
Puncture resistant fabric
Retransmission and retransmission request in data communication systems
Adapter plate for use in mounting an audio/visual device or the like to a surface
Programmable computer mouse
Liquid crystal display
Computerized information and display methods
  Randomly Featured Patents
Equipment for briqueting vegetal material in particular stalk-plant materials
Telephone subscriber's apparatus for signalling decimal digit values represented in printed form
Method and apparatus for tracking objects and people
Door handle device
Method of making layered semiconductor laser
Tie down buckle
Pool liner installation method and apparatus
Contamination control of emission discharge
Method and apparatus for reducing intercolor bleed to improve print quality
Pitch-Preserved digital audio playback synchronized to asynchronous clock