The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2021
Filed:
May. 04, 2020
Applicant:
United Microelectronics Corp., Hsinchu, TW;
Inventors:
Da-Jun Lin, Kaohsiung, TW;
Bin-Siang Tsai, Changhua County, TW;
Chich-Neng Chang, Pingtung County, TW;
Assignee:
UNITED MICROELECTRONICS CORP., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/522 (2006.01); H01L 23/528 (2006.01); H01L 21/768 (2006.01); H01L 23/532 (2006.01);
U.S. Cl.
CPC ...
H01L 21/7682 (2013.01); H01L 21/76834 (2013.01); H01L 21/76877 (2013.01); H01L 23/528 (2013.01); H01L 23/5226 (2013.01); H01L 23/5329 (2013.01); H01L 2221/1047 (2013.01);
Abstract
A structure of semiconductor device includes a substrate, having a dielectric layer on top. The structure further includes at least two metal elements being adjacent, disposed in the dielectric layer, wherein an air gap is existing between the two metal elements. A porous dielectric layer is disposed over the substrate, sealing the air gap. An inter-layer dielectric layer disposed on the porous dielectric layer.