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:
Mar. 20, 2012
Filed:
Dec. 28, 2009
Tatsuya Matano, Tokyo, JP;
Tatsuya Matano, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A semiconductor apparatus includes a first internal voltage generator generating a first internal voltage in response to an external power supply voltage, a second internal voltage generator generating a second internal voltage in response to the external power supply voltage, the second internal voltage is larger in absolute value than the first internal voltage, and a preset signal generating circuit responding to a power-on of the external power supply voltage to the semiconductor apparatus and generating first and second preset signals which bring the first and second internal voltage generators into respective initial states, generation of the second preset signal is stopped after stopping generation of the first preset signal, in which the first internal voltage generator is released from its initial state in response to the stopping the generation of the first preset signal to be allowed to generate the first internal voltage, the second internal voltage generator is released from its initial state in response to the stopping the generation of the second preset signal to be allowed to generate the first internal voltage, and the second internal voltage is generated after generation of the first internal voltage.