US 12,327,828 B2
Electrostatic discharge circuit and electrostatic discharge control system
Seung Ho Lee, Icheon (KR)
Assigned to SK hynix Inc., Icheon (KR)
Filed by SK hynix Inc., Icheon (KR)
Filed on Jun. 29, 2021, as Appl. No. 17/362,655.
Claims priority of application No. 10-2021-0012351 (KR), filed on Jan. 28, 2021.
Prior Publication US 2022/0238509 A1, Jul. 28, 2022
Int. Cl. H01L 27/02 (2006.01); G05F 3/24 (2006.01); H02H 9/04 (2006.01); H03K 3/356 (2006.01); H03K 17/687 (2006.01); H03K 19/003 (2006.01); H03K 19/0185 (2006.01)
CPC H01L 27/0266 (2013.01) [G05F 3/24 (2013.01); H02H 9/046 (2013.01); H03K 3/356113 (2013.01); H03K 17/6872 (2013.01); H03K 19/00315 (2013.01); H03K 19/018521 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An electrostatic discharge circuit, comprising:
a control voltage generation circuit configured to generate a first control voltage, a second control voltage, and a third control voltage by dividing a supply voltage;
an electrostatic detection circuit configured to set a first setup voltage based on the first control voltage, and generate an electrostatic detection signal by detecting static electricity included in the first setup voltage;
a driving control circuit configured to set a second setup voltage in response to the second control voltage, and generate a driving control signal based on the electrostatic detection signal; and
a discharge driving circuit configured to set a third setup voltage based on the third control voltage, and perform a discharge operation on static electricity included in the third setup voltage based on the driving control signal.