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:
Apr. 02, 2013
Filed:
Mar. 06, 2008
Tsuneo Tsukagoshi, Minato-ku, JP;
Takeshi Watanabe, Kawasaki, JP;
Toshiyuki Nakaie, Wakayama, JP;
Nobuchika Matsui, Wakayama, JP;
Tsuneo Tsukagoshi, Minato-ku, JP;
Takeshi Watanabe, Kawasaki, JP;
Toshiyuki Nakaie, Wakayama, JP;
Nobuchika Matsui, Wakayama, JP;
NEC Corporation, Tokyo, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Hanwa Electronic Ind. Co., Ltd., Wakayama, JP;
Abstract
The application methods in the related art cannot apply a sufficient voltage with a rectangular wave having a short rise time to an electronic circuit. Furthermore, electrostatic discharge test can apply a sufficient voltage but can only apply an oscillating waveform. A TLP generator is used as a rectangular wave generator. The sum of an injection resistance and a matching resistance is set so as to match the characteristic impedance of a transmission line for transmitting a rectangular wave to a test target. A capacitor is connected to a return line of the applied rectangular wave. With this configuration, stable application can be achieved. An error observation function of an electronic circuit gradually increases a peak value of the rectangular wave and determines the immunity based on an application voltage to cause an error for the first time.