Title:
電子デバイスおよび診断装置
Document Type and Number:
Japanese Patent JP5148615
Kind Code:
B2
Abstract:
An electric device includes a plurality of circuits that operate in synchronization with a clock signal, a plurality of flip-flops each of which acquires a data value of a signal from a corresponding one of the plurality of circuits in synchronization with the clock signal and stores the acquired data value therein until receiving a next clock signal, where each flip-flop enters into a clock-disabled state, when receiving a signal at a disable terminal thereof, in which the acquired data value continues to be stored in the flip-flop, a timing controller that outputs a hold signal to the disable terminal of each flip-flop at a timing at which a corresponding circuit is desired to be diagnosed, and a plurality of diagnosis lines that are respectively provided in correspondence with the plurality of flip-flops, each diagnosis line outputting as diagnosis data a data value stored in a corresponding flip-flop.
Inventors:
Masahiko Hata
Application Number:
JP2009529884A
Publication Date:
February 20, 2013
Filing Date:
August 27, 2007
Export Citation:
Assignee:
Advantest Corporation
International Classes:
G01R31/28; H01L21/822; H01L27/04
Domestic Patent References:
| JPH02201275A | 1990-08-09 | |||
| JP2001264389A | 2001-09-26 | |||
| JPH02201275A | 1990-08-09 | |||
| JPH0389178A | 1991-04-15 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation