US 11,817,524 B1
Concentrator photovoltaic subassembly and method of constructing the same
Roger E. Welser, Providence, RI (US); and Ashok K. Sood, Brookline, MA (US)
Assigned to Magnolia Optical Technologies, Inc., Woburn, MA (US)
Filed by Magnolia Optical Technologies, Inc., Woburn, MA (US)
Filed on Nov. 15, 2021, as Appl. No. 17/526,623.
Application 17/526,623 is a division of application No. 15/708,057, filed on Sep. 18, 2017, granted, now 11,177,400.
Application 15/708,057 is a division of application No. 12/985,921, filed on Jan. 6, 2011, abandoned.
Claims priority of provisional application 61/293,469, filed on Jan. 8, 2010.
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 31/00 (2006.01); H01L 31/18 (2006.01); H01L 31/0216 (2014.01); G02B 1/115 (2015.01); H01L 31/054 (2014.01); H01L 31/0232 (2014.01); H01L 31/0352 (2006.01); H01L 31/0725 (2012.01); H01L 31/0445 (2014.01); H01L 31/056 (2014.01); H01L 31/0203 (2014.01); H01L 31/0224 (2006.01); H01L 31/0735 (2012.01); H01L 31/048 (2014.01); H01L 31/0304 (2006.01); H01L 31/065 (2012.01)
CPC H01L 31/1884 (2013.01) [G02B 1/115 (2013.01); H01L 31/0203 (2013.01); H01L 31/0232 (2013.01); H01L 31/02165 (2013.01); H01L 31/02168 (2013.01); H01L 31/022425 (2013.01); H01L 31/022475 (2013.01); H01L 31/035236 (2013.01); H01L 31/035263 (2013.01); H01L 31/048 (2013.01); H01L 31/0445 (2014.12); H01L 31/0481 (2013.01); H01L 31/056 (2014.12); H01L 31/0543 (2014.12); H01L 31/0547 (2014.12); H01L 31/0725 (2013.01); H01L 31/0735 (2013.01); H01L 31/184 (2013.01); H01L 31/186 (2013.01); H01L 31/1844 (2013.01); H01L 31/03046 (2013.01); H01L 31/065 (2013.01); Y02E 10/50 (2013.01); Y02E 10/52 (2013.01); Y02E 10/544 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of manufacturing a concentrating photovoltaic cell subassembly comprising the steps of:
bonding a lead structure to a solar cell structure, the lead structure including electrical leads for the solar cell structure; and
embedding the solar cell structure and operatively connected lead structure within a transparent encapsulant by:
placing the solar cell structure into a mold filled with an encapsulant;
curing the encapsulant so as to create an encapsulated solar cell device having a first hemispheric dome portion having an index of refraction of nc2; and
separating the encapsulated solar cell device from the mold; and
placing the encapsulated solar cell device and associated lead structure into a second mold filled with lower refractive index encapsulant material to thereby perform an additional encapsulation having a second hemispheric dome portion concentric with the first hemispheric dome portion and having an index of refraction of nc1 such that nc1 is equal to a square root of nc2, and the solar cell structure is positioned at approximately 1.17*R below a top of the second hemispheric dome portion with R being a radius of the second hemispheric dome portion, and the first hemispheric dome portion has a radius of R/nc1.