公开(公告)号：DE3668517D1

公开(公告)日：1990-03-01

申请号：DE3668517

申请日：1986-09-05

Applicant: IBM

Inventor： FITZGERALD JOSEPH MICHAEL ,  NGUYEN PHO HOANG ,  WILLIAMS ROBERT RUSSELL

IPC: H01L21/822 ,  H01L21/3205 ,  H01L21/82 ,  H01L23/485 ,  H01L23/52 ,  H01L23/528 ,  H01L27/02 ,  H01L27/04 ,  H01L27/118 ,  H01L23/48

Abstract: A VLSI chip (100) has multiple annular rings (122) of circuit cells, interspersed with annular wiring channels (123) for interconnecting the cells. Another wiring layer runs perpendicular to the rings. A central chip area (110) contains all the I/O connections for the chip.