Dual damascene structure and method

Details Dual damascene structure and method Dual damascene structure and method

2006-08-15

2006-08-15

Smith, Matthew (Department: 2823)

Active solid-state devices (e.g., transistors, solid-state diode

Combined with electrical contact or lead

Of specified material other than unalloyed aluminum

C257S635000

Reexamination Certificate

active

07091612

ABSTRACT:
A dual damascene structure and method of fabrication thereof. An insulating layer comprises a first dielectric material and a second dielectric material, the second dielectric material being different from the first dielectric material. First conductive regions having a first pattern are formed in the first dielectric material, and second conductive regions having a second pattern are formed in the second dielectric material, the second pattern being different from the first pattern. One of the first dielectric material and the second dielectric material comprises an organic material, and the other dielectric material comprises an inorganic material. One of the first and second dielectric materials is etchable selective to the other dielectric material. A method of cleaning a semiconductor wafer processing chamber while a wafer remains residing within the chamber is also disclosed.

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