Registers – Records – Conductive
Reexamination Certificate
2004-12-06
2009-02-24
St. Cyr, Daniel (Department: 2876)
Registers
Records
Conductive
C235S487000
Reexamination Certificate
active
07494066
ABSTRACT:
The invention provides a circuit which provides a stabilized boosting in the case where a semiconductor device typified by a non-contact ID chip includes a circuit which requires a higher voltage than a logic circuit does. By inputting an alternating signal inputted from an antenna to a charge pump circuit as it is or through a logic circuit, a charge pump can operate with a stabilized frequency that a clock frequency is not affected by a variation of elements and the ambient temperature, thus a stabilized boosting can be provided.
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Office Action re Chinese application No. CN 200410101935.5, dated Jul. 4, 2008 (with English translation).
Koyama Jun
Saito Toshihiko
Cook Alex Ltd.
Cyr Daniel St.
Semiconductor Energy Laboratory Co,. Ltd.
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