Patent ID: 11959876
Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A method of manufacturing an electronic device with a cap, comprising:
attaching the cap to a first surface of an electronic device substrate having a first specified area, wherein the cap including a cap structure defining a first recess and a retaining structure comprising a plurality of pillars formed on and extending away from a first surface of the cap structure and distributed across the first recess defining a second recess including a portion of the first surface of the electronic device substrate within the first recess;
forming a plurality of holes, wherein a first hole of the plurality of holes is located inside the second recess and a second hole of the plurality holes is located inside the first recess but outside the second recess;
inserting an electrolyte using the first hole, wherein the second hole is used for venting excess electrolyte;
restricting movement of the electrolyte to the second recess using the retaining structure to within a portion of the first specified area defined by the second recess; and
sealing the plurality of holes.