Docket No: SKYW00056-1C US
`Client Ref: S0123US4
`
`AMENDMENTSTO THE CLAIMS
`
`This listing of claims will replace all prior versions andlistings of claims in the
`
`application:
`
`21. (New) A solar cell comprising:
`
`a silicon substrate having a textured front surface and a back surface opposite the front
`
`surface, the front surface facing the sun to collect solar radiation during normal operation;
`
`an antireflective layer over the textured front surface ofthe silicon substrate;
`
`a doped diffusion region in the silicon substrate, the doped diffusion region proximate
`
`to the textured front surface of the silicon substrate;
`
`a tunnel oxide layer formed on the back surface ofthe silicon substrate, the tunnel
`
`oxide layer having a thickness of about 10 to 50 Angstroms;
`
`a doped polysilicon emitter layer formed on the tunnel oxide layer, the doped
`
`polysilicon emitter layer and the doped diffusion region having opposite conductivity types;
`
`a front metal contact disposed on and in contact with the front surface of the silicon
`
`substrate; and
`
`a rear metal contact disposed on and in contact with the doped polysilicon emitter
`
`layer.
`
`1-20. (Canceled)
`
` Application No. 17/870,268
`
`22. (New)
`
`Thesolar cell of claim 21, wherein the antireflective layer comprisessilicon
`
`nitride.
`
`23. (New)
`
`Thesolar cell of claim 21 comprising an oxide layer formed on the textured
`
`front surface of the silicon substrate.
`
`24. (New)
`
`The solar cell of claim 23, wherein the oxide layer comprises silicon dioxide.
`
`25. (New)
`
`Thesolar cell of claim 24, wherein the silicon dioxide is thermally grown to a
`
`thickness of about 10 to 250 Angstroms.
`
`26. (New)
`
`Thesolar cell of claim 21, wherein the tunnel oxide layer comprises silicon
`
`dioxide.
`
`27. (New)
`
`Thesolar cell of claim 26, wherein the tunnel oxide layer is thermally grown.
`
`-2-
`
`
`
`Docket No: SKYW00056-1C US
`Client Ref: S0123US4
`
`28. (New)
`
`The solar cell of claim 21 comprising a dielectric layer formed on the doped
`
`29. (New)
`
`Thesolar cell of claim 28 wherein the dielectric layer comprises contact holes
`
`through which rear metal contact makes an electrical connection with the doped polysilicon
`
`emitter layer.
`
`polysilicon emitter layer.
`
` Application No. 17/870,268
`
`30. (New)
`
`Thesolar cell of claim 21, wherein rear metal contact comprises silver.
`
`31. (New)
`
`Thesolar cell of claim 21 comprising a front bus bar attached to a front side of
`
`the solar cell, the front bus bar in electrical contact with the front metal contact.
`
`32. (New)
`
`The solar cell of claim 21 comprising a rear bus bar attached toa rear side of
`
`the solar cell, the rear bus barin electrical contact with the rear metal contact.
`
`33. (New)
`
`Thesolar cell of claim 21, wherein the silicon substrate has a thickness
`
`measured from the back surface to a tip of the textured front surface of about 100 to 250 um.
`
`34. (New)
`
`Thesolar cell of claim 21, wherein the silicon substrate is a N-type silicon
`
`substrate.
`
`-3-
`
`
Still Working On It
This document is taking longer than usual to download. This can
happen if we need to contact the court directly to obtain the
document and their servers are running slowly.
Give it another minute or two to complete, and then try the
refresh button.
Sealed Document
We are unable to display this document, it may be under a court
ordered seal.
If you have proper credentials to access the file, you may proceed
directly to the court's system using your government issued username
and password.
Access Government Site
