Patent ID: 6252305
Filing Date: 2001-06-26
Classification: H01L

Abstract:
A multichip module comprising:a substrate having a structure for making external electrical connection;first, second, third and fourth semiconductor chips each consisting essentially of a single row of bonding pads formed on an active surface thereof and disposed on a side portion thereof, whereinsaid first chip being attached to the substrate;said second chip being attached to the active surface of the first chip such that the two respective rows of bonding pads on the first and second chips are substantially parallel and opposing to each other, and the side portion of the second chip having bonding pads formed thereon projects from the first chip;said third chip being attached to the active surface of the second chip such that the row of bonding pads on the third chip is substantially perpendicular to the two rows of bonding pads on the first and second chips;said fourth chip being attached to the active surface of the third chip such that the two rows of bonding pads on the third and fourth chips are substantially parallel and opposing to each other, and the side portion of the fourth chip having bonding pads formed thereon projects from the third chip; andsaid third and fourth chips each have a width smaller than a perpendicular distance separating the two rows of bonding pads on the first and second chips; anda plurality of bonding wires electrically connecting the bonding pads of each chip to the structure for making external electrical connection.