US 12,356,732 B2
Photovoltaic devices with conducting layer interconnects
Nikhil Bhandari, Perrysbury, OH (US); Matthew Davis, East Rochester, NY (US); Rhett Miller, San Jose, CA (US); and Charles Wickersham, Perrysburg, OH (US)
Assigned to First Solar, Inc., Tempe, AZ (US)
Appl. No. 18/282,146
Filed by First Solar, Inc., Tempe, AZ (US)
PCT Filed Mar. 17, 2022, PCT No. PCT/US2022/020720
§ 371(c)(1), (2) Date Sep. 14, 2023,
PCT Pub. No. WO2022/197905, PCT Pub. Date Sep. 22, 2022.
Claims priority of provisional application 63/278,371, filed on Nov. 11, 2021.
Claims priority of provisional application 63/163,670, filed on Mar. 19, 2021.
Prior Publication US 2024/0154052 A1, May 9, 2024
Int. Cl. H10F 19/90 (2025.01); H10F 71/00 (2025.01)
CPC H10F 19/904 (2025.01) [H10F 71/00 (2025.01)] 8 Claims
OG exemplary drawing
 
1. A method for forming a conductive interconnection comprising:
forming a semiconductor stack over a first contact;
forming a first conductive layer over the semiconductor stack; and
ablating a shaped region of the first conductive layer from the semiconductor stack, wherein a conductive island is formed from the first conductive layer and demarcated by the shaped region;
forming a dielectric layer over the first conductive layer;
forming a passage through the conductive island of the first conductive layer, the passage extending through the dielectric layer, the conductive island of the first conductive layer, and the semiconductor stack; and
filling the passage, at least partially, with an interconnect that forms an electrical connection with the first contact.