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:
Dec. 28, 2021
Filed:
Jan. 21, 2020
Applicant:
Andrew Wireless Systems Gmbh, Buchdorf, DE;
Inventors:
Thomas Rauwolf, Minderoffingen, DE;
Patrick Braun, Munningen, DE;
Assignee:
Andrew Wireless Systems GmbH, Buchdorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/22 (2006.01); G01N 5/02 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
G01N 27/223 (2013.01); G01N 5/025 (2013.01); G01N 27/221 (2013.01); H05K 1/0268 (2013.01);
Abstract
A technique to characterize moisture in a dielectric layer of a printed circuit board is provided. A method comprises applying a test signal to test circuitry comprising a test capacitor that is formed with the dielectric layer of the printed circuit board; measuring at least one characteristic of a least one of signal transmission and signal reflection from the test circuitry; and determining, from the at least one measured characteristic, at least one parameter value indicative of moisture content in the dielectric layer.