Patent ID: 7049706

Claim:
A semiconductor device with staggered arrangement in three lines with an inside-line electrode having a lower electrode and an upper electrode which are divided by an insulating film, a central-line electrode having a lower electrode and an upper electrode divided by another insulating film, and an outside-line electrode on the peripheral part of the surface of a semiconductor pellet, wherein the lower electrode of the inside-line electrode is configured as an octagonal electrode having an hypotenuse on a central-line electrode side formed to cut vertically on a position at a distance of a minimum length (R) of the electrode necessary for wire-bonding from a center of the electrode on a line connecting a center of a rough square shape of the electrode with each side consisting of the minimum length (R) of the electrode necessary for wire-bonding and a center of an adjacent central-line electrode, the upper electrode of the inside-line electrode is configured as rough square shaped and is connected to the lower electrode of the inside-line electrode via a metal pillar formed in the insulating film, the lower electrode of the central-line electrode is configured as an octagonal electrode having an hypotenuse on an inside-line electrode side formed to cut vertically on a position at the distance of the minimum length (R) of the electrode necessary for wire-bonding from a center of the electrode on a line connecting a center of a rough square shape of the electrode with each side consisting of the minimum length (R) of the electrode necessary for wire-bonding and a center of an adjacent inside-line electrode, the upper electrode of the central-line electrode is configured as rough square shaped and is connected to the lower electrode of the central-line electrode via another metal pillar formed in the insulating film, and a maximum wiring width of an outside-line electrode wire intermediately parallel to the hypotenuse of the central-line electrode and the hypotenuse of the inside-line electrode is determined based on a following expression, considering a necessary minimum conductor interval (I) between the central-line electrode and the inside-line electrode: the maximum wiring width=( A 2 +B 2 ) 1/2 −( R+l )×2, wherein A is a distance between the center of the lower electrode of the inside-line electrode and the center of the lower electrode of the central-line electrode in a direction perpendicular to the inside central and outside lines, and wherein B is a distance between the center of the lower electrode of the inside-line electrode and the center of the lower electrode of the central-line electrode in a direction parallel to the inside, central and outside lines.