US 12,341,337 B2
Multi voltage-domain electro static discharge (ESD) power clamp
Efraim Aharoni, Haifa (IL); Avi Parvin, Netania (IL); Roda Kanawati, Irvine, CA (US); Allon Parag, Ramat Yishai (IL); and Einat Arad Ophir, Yuvalim (IL)
Assigned to TOWER SEMICONDUCTOR LTD., Migdal Haemek (IL)
Filed by TOWER SEMICONDUCTOR LTD., Migdal Haemek (IL)
Filed on Nov. 22, 2022, as Appl. No. 17/991,869.
Prior Publication US 2024/0170958 A1, May 23, 2024
Int. Cl. H02H 9/00 (2006.01); H02H 9/04 (2006.01)
CPC H02H 9/046 (2013.01) 21 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a multi voltage-domain Electro Static Discharge (ESD) power clamp comprising:
a plurality of pins; and
an ESD array comprising a cascaded plurality of ESD power clamps, wherein the ESD array comprises a plurality of ESD array portions configured to protect a respective plurality of voltage domains from ESD, wherein the ESD array is configured to connect the plurality of ESD array portions between a respective plurality of pin pairs from the plurality of pins, wherein an ESD array portion corresponding to a voltage domain comprises one or more ESD power clamps of the cascaded plurality of ESD power clamps, the ESD array portion configured to protect a voltage range of the voltage domain.