Semiconductor device capable of testing bonding of pad

US9495643B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9495643-B2
Application numberUS-201313778662-A
CountryUS
Kind codeB2
Filing dateFeb 27, 2013
Priority dateAug 17, 2012
Publication dateNov 15, 2016
Grant dateNov 15, 2016

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Abstract

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A test circuit includes a phase difference detection unit and a determination unit. The phase difference detection unit detects a phase difference between a first signal received through a first pad and a second signal received through a second pad. The determination unit compares the detected phase difference with a preset amount of delay and outputs a result signal.

First claim

Opening claim text (preview).

What is claimed is: 1. A test device comprising: a phase difference detection unit configured to receive a first signal received only through a first pad and a second signal received only through a second pad and to detect a phase difference only between the first signal and the second signal, wherein the first signal is delayed according to a bonding status of the first pad and the second signal is delayed according to a bonding status of the second pad; and a determination uni…

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What does patent US9495643B2 cover?
A test circuit includes a phase difference detection unit and a determination unit. The phase difference detection unit detects a phase difference between a first signal received through a first pad and a second signal received through a second pad. The determination unit compares the detected phase difference with a preset amount of delay and outputs a result signal.
Who is the assignee on this patent?
Sk Hynix Inc
What technology area does this patent fall under?
Primary CPC classification G06N99/002. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Nov 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).