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, 2019
Filed:
Aug. 10, 2017
Analog Devices, Inc., Norwood, MA (US);
Javier Alejandro Salcedo, North Billerica, MA (US);
Linfeng He, Orlando, FL (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
An integrated circuit device for protecting circuits from transient electrical events is disclosed. An integrated circuit device includes a first bipolar junction transistor (BJT) and a second BJT cross-coupled with the first BJT to operate as a first semiconductor-controlled rectifier (SCR), where a base of the first BJT is connected to a collector of the second BJT, and a base of the second BJT is connected to an emitter or a collector of the first BJT. The integrated circuit device additionally includes a triggering device comprising a first diode having a cathode electrically connected to the base of the first BJT. The integrated circuit device further includes a third BJT cross-coupled with the second BJT to operate as a second SCR, where the third BJT has a collector connected to the base of the second BJT and a base connected to the collector of the second BJT.