Patent ID: 11935883
Assignee: LODESTAR LICENSING GROUP LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A voltage generation circuit, comprising;
a plurality of stages, wherein each stage of the plurality of stages comprises a respective voltage isolation device and a respective coupling capacitor connected to its respective voltage isolation device;
wherein the respective coupling capacitor for at least one stage of the plurality of stages has a structure comprising:
a first conductive region comprising a first raised portion and a second raised portion spaced apart from the first raised portion, wherein the first conductive region has a first conductivity type;
a second conductive region comprising a raised portion adjacent the second raised portion of the first conductive region, wherein the second conductive region has a second conductivity type different than the first conductivity type;
a dielectric overlying the first raised portion of the first conductive region;
a conductor overlying the dielectric; and
a conductive element overlying the second raised portion of the first conductive region and overlying the raised portion of the second conductive region.