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:
Nov. 25, 2008
Filed:
Mar. 23, 2007
Takanori Uejima, Moriyama, JP;
Naoki Nakayama, Sakai, JP;
Takanori Uejima, Moriyama, JP;
Naoki Nakayama, Sakai, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A high frequency switch includes electrically connected switching elements, such as a first diode, a second diode, inductors, capacitors, and a resistor. A diode having a smaller charge capacity in the ON state is used as the first diode, while a diode having a larger charge capacity in the ON state is used as the second diode. That is, the first and second diodes utilize different part number diodes. A diode part number having a smaller charge capacity is used as the first diode, while a diode part number having a larger charge capacity is used as the second diode. Alternatively, the charge capacity of diodes that belong to the same lot may be measured and classified, so that a smaller charge capacity diode is used as the first diode, while a larger charge capacity diode is used as the second diode.