Patent ID: 7517786
Filing Date: 2009-04-14
Classification: H01L

Abstract:
1. A method of forming a wire bond for a semiconductor construction, comprising: providing a semiconductor substrate, the semiconductor substrate supporting an electrically conductive node; forming a radiation-imageable material of substantially uniform thickness across the node and across a region of the substrate proximate the node; exposing the radiation-imageable material to a pattern of radiation and a developing solution to form a multi-level pattern in the radiation-imageable material; the multi-level pattern including an opening though the radiation material directly over the node, a thick region laterally offset from the node and surrounding the node; and a moderate thickness region between the thick region and the opening; utilizing the patterned radiation-imageable material as a mask to define a wiring bond region of the metal-containing layer; and forming a wire bond to the wiring bond region, the forming of the wire bond comprising pressing a wire against the wiring bond region with a tool, the tool having a footprint where it is proximate the wiring bond region, the thick region of the radiation-imaging material being offset beyond said footprint of the tool by the moderate thickness region of the patterned radiation-imaging material.