发明名称 Failsafe ESD protection
摘要 Among other things, one or more techniques and/or systems for providing failsafe electrostatic discharge (ESD) protection are provided. In one embodiment, ESD protection is provided by connecting a voltage fail safe (VFS) supply voltage to an NWELL circuit interface (e.g., of a PMOS transistor) and connecting PAD to at least one of VFS or the NWELL circuit interface. To this end, circuitry to be protected from ESD (e.g., circuitry operably connected to PAD) is provided with failsafe ESD protection (e.g., such that a non-snapback NMOS device may be utilized to discharge ESD current, where a non-snapback NMOS generally consumes less semiconductor real estate and is less complex to produce as compared to a snapback NMOS), for example. In this manner, failsafe ESD protection is efficiently provided.
申请公布号 US9124086(B2) 申请公布日期 2015.09.01
申请号 US201213557520 申请日期 2012.07.25
申请人 Taiwan Semiconductor Manufacturing Company Limited 发明人 Ma Wei Yu;Chen Kuo-Ji
分类号 H02H9/04 主分类号 H02H9/04
代理机构 Cooper Legal Group, LLC 代理人 Cooper Legal Group, LLC
主权项 1. A method for providing failsafe electrostatic discharge (ESD) protection, comprising: connecting a voltage source (VDDA) to a source of a transistor; connecting a voltage fail safe (VFS) supply voltage to an NWELL circuit interface of an NWELL body of the transistor; and connecting a PAD to the VFS supply voltage via a first diode, the PAD operably connected to circuitry to be protected from ESD.
地址 Hsin-Chu TW