Patent ID: 9484259
Filing Date: 2016-11-01
CPC Classification: H01L

Claim Text:
1. A method of making a semiconductor device, comprising: providing a semiconductor wafer including a plurality of contact pads; forming a first insulating layer over the semiconductor wafer and contact pads; forming an under bump metallization layer over the contact pads and the first insulating layer; forming a plurality of bumps over the under bump metallization layer; forming a second insulating layer over the semiconductor wafer to completely cover the first insulating layer, a sidewall of the under bump metallization layer, sidewall of the bumps, and upper surface of the bumps; etching the second insulating layer to remove a portion of the second insulating layer covering the upper surface of the bumps and a first portion of the sidewall of the bumps, while maintaining coverage of the second insulating layer over a second portion of the sidewall of the bumps and the sidewall of the under bump metallization layer to provide structural support for the bumps and form an area over the second insulating layer and between the bumps devoid of material; and singulating the semiconductor wafer with the area over the second insulating layer and between the bumps devoid of material.