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:
May. 29, 2001
Filed:
Feb. 01, 2000
Sang-suk Kang, Kyungki-do, KR;
Jung-Hyun Nam, Seoul, KR;
Abstract
Integrated circuit devices having improved test capabilities may include a mode selection circuit that generates a mode signal that designates an operational mode based on the magnitude of a mode control signal when a power supply signal transitions from a first state to a second state. A preferred embodiment of the mode selection circuit generates a mode signal that designates a first mode of the integrated circuit device when the power supply signal transitions from a first state to a second state while a magnitude of the mode control signal exceeds a potential threshold. Moreover, the mode selection circuit may also prevent subsequent changes in the magnitude of the mode control signal from disabling the first mode. The mode signal may be generated without the need for additional dummy pads and/or input pins, which may necessitate an increase in chip size and/or more complex test equipment to test an integrated circuit device.