Semiconductor device and manufacturing method of the same

Abstract

The invention provides a semiconductor device that provides a high yield and has high reliability. A concave portion (5) is formed on a front surface of a semiconductor substrate (1), and a convex (7) portion is formed on an insulation substrate (6) (such as glass), corresponding to this concave portion (5). Then, the concave portion (5) and the convex portion (7) are engaged to bond the semiconductor substrate (1) and the insulation substrate (6) with an adhesion layer (8) interposed therebetween. A back surface of the semiconductor substrate is back-ground to expose the convex portion (7), and after then, processes such as forming a via hole, forming a penetrating electrode, forming a conductive terminal, and dicing are performed. At this time, the front surface and a sidewall of the semiconductor substrate (1) are covered (protected) with the insulation substrate. The convex portion (7) has a predetermined width and the dicing is performed almost on the center of the convex portion (7).

Description

technical field [0001] The present invention relates to a semiconductor device having excellent processability and high reliability and a method for manufacturing the same. Background technique [0002] In recent years, CSP (Chip Size Package: chip size package) has attracted attention as a three-dimensional packaging technology. A CSP refers to a small package having an outer dimension substantially the same size as that of a semiconductor chip. [0003] Conventionally, a BGA (Ball Grid Array: Ball Grid Array) type semiconductor device is known as a type of CSP. In this BGA-type semiconductor device, a plurality of spherical conductive terminals made of metal members such as solder are arranged in a grid on one main surface of a package, and are electrically connected to a semiconductor chip mounted on the other surface of the package. [0004] And, when this BGA type semiconductor device is incorporated into an electronic device, each conductive terminal is mounted on a ...

AI Technical Summary

Problems solved by technology

[0017] In this way, in the conventional structure, damage such as breakage or deformation occurs due to various stresses, impacts, and temperature changes that occur on the semiconductor device, and there is a problem that reliability deteriorates.

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