US 12,009,358 B2
Protective circuit against electrostatic discharges
Henning Lohmeyer, Reutlingen (DE); Julia Rauh, Sonnenbuehl (DE); Michael Graf, Leutenbach (DE); and Timo Seitzinger, Eningen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 17/051,328
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed May 2, 2019, PCT No. PCT/EP2019/061208
§ 371(c)(1), (2) Date Oct. 28, 2020,
PCT Pub. No. WO2019/211361, PCT Pub. Date Nov. 7, 2019.
Claims priority of application No. 102018206896.8 (DE), filed on May 4, 2018.
Prior Publication US 2021/0242195 A1, Aug. 5, 2021
Int. Cl. H02H 9/00 (2006.01); H01L 27/02 (2006.01); H02H 9/04 (2006.01)
CPC H01L 27/0292 (2013.01) [H02H 9/044 (2013.01)] 14 Claims
OG exemplary drawing
 
5. A protective circuit configured to protect against electrostatic discharges for connection pins of an application-specific integrated circuit, the protective circuit comprising:
a first connection pin;
a second connection pin, wherein the first connection pin and the second connection pin are connected to one another in a Y configuration;
a shared electronic protective structure configured to protect against positive stress for the first connection pin and for the second connection pin; and
multiple electronic protective structures configured to protect against polarity reversal of the first connection pin and of the second connection pin,
wherein the protective circuit includes a first N-type silicon controlled rectifier and a second N-type silicon controlled rectifier as the electronic protective structures configured to protect against polarity reversal, the first N-type silicon controlled rectifier being connected upstream from the first connection pin and the second N-type silicon controlled rectifier being connected upstream from the second connection pin.