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.

Date of Patent:
Dec. 15, 2020

Filed:

Jul. 11, 2019
Applicant:

Montage Technology Co., Ltd., Shanghai, CN;

Inventors:

Yong Wang, Shanghai, CN;

Dongming Lou, Shanghai, CN;

Weidong Fan, Shanghai, CN;

Ronghui Chen, Shanghai, CN;

Meng Mei, Shanghai, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3183 (2006.01); G01R 31/319 (2006.01); G01R 31/3193 (2006.01); G01R 31/317 (2006.01);
U.S. Cl.
CPC ...
G01R 31/318307 (2013.01); G01R 31/31726 (2013.01); G01R 31/31905 (2013.01); G01R 31/31937 (2013.01); G01R 31/318328 (2013.01);
Abstract

The present invention relates to a method for calibrating a channel delay skew of automatic test equipment (ATE), the method comprising: providing multiple calibration reference devices, wherein the calibration reference devices have a second plurality of delay paths each having a predetermined path delay value and coupling a pair of pins of one of the calibration reference devices together, wherein each pin is coupled to at most one delay path; coupling each of the calibration reference devices with the ATE, respectively, wherein the test probe of each of the first plurality of test channels is coupled with a pin of one of the calibration reference devices; testing the calibration reference devices to obtain multiple delay measurements from one or more transmitting channels of the first plurality of test channels to one or more receiving channels of the first plurality of test channels using the ATE; and calculating based on the delay measurements.


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