Patent ID: 7101021
Filing Date: 2006-09-05
Classification: B41J,H05K

Abstract:
1. An IC chip comprising: a substrate; a contact pad on a first surface of the substrate; a resist film portion on the first surface of the substrate; a memory device on a second, opposite surface of the substrate, the memory device being electrically connected to the contact pad; a non-resist film portion exposing the first surface of the substrate, and being located in a first side of the contact pad in a surface direction of the substrate, wherein the non-resist film portion and the contact pad define a step therebetween; the contact pad and the resist film portion form a clearance therebetween in a second, opposite side of the contact pad in the surface direction of the substrate; a length of the non-resist portion in the surface direction of the substrate is larger than a length of the clearance in the surface direction of the substrate.