NOVELTY - The method of manufacturing an inverted metamorphic solar cell for satellite power system, comprises depositing a sequence of layers of semiconductor material, which forms a solar cell on a first substrate (101), mounting a surrogate substrate such as a sapphire wafer on top of the layers, removing the first substrate, mounting the solar cell on a rigid coverglass, thinning the surrogate substrate to a predetermined thickness by grinding, lapping or etching, depositing a metal contact layer (105) over the semiconductor layers, and mounting the surrogate substrate on top of the contact layer.    USE - The method is useful for manufacturing an inverted metamorphic solar cell of a solar cell arrangement for satellite power system.    ADVANTAGE - The method is capable of producing a commercially viable, manufacturable and energy efficient solar cell with improved power and energy conversion characteristics, thus improving size, mass and cost of a satellite power system.    DETAILED DESCRIPTION - The method of manufacturing an inverted metamorphic solar cell for satellite power system, comprises depositing a sequence of layers of semiconductor material, which forms a solar cell on a first substrate (101), mounting a surrogate substrate such as a sapphire wafer on top of the layers, removing the first substrate, mounting the solar cell on a rigid coverglass, thinning the surrogate substrate to a predetermined thickness by grinding, lapping or etching, depositing a metal contact layer (105) over the sequence of semiconductor layers, mounting the surrogate substrate on top of the metal contact layer, etching an opening through the layers of semiconductor material to the top of the metal contact layer, welding an electrical conductor to the metal contact layer to form an electrical contact to the solar cell, and attaching the solar cell to a glass supporting member. The sequence of layers of semiconductor material forms a triple junction solar cell including first, second and third solar subcells. The mounting step includes adhering the solar cell to the surrogate substrate. The electrical conductor makes an electrical connection to an adjacent solar cell. The surrogate substrate is electrically conductive and forms an electrical contact to the solar cell. The step of depositing the sequence of layers includes forming a first solar subcell on the substrate having a first band gap, forming a second solar subcell over the first subcell having a second band gap smaller than the first band gap, forming a grading interlayer over the second subcell having a third band gap larger than the second band gap, and forming a third solar subcell having a fourth band gap smaller than the secondhand gap such that the third subcell is lattice mismatched with respect to the second subcell. An INDEPENDENT CLAIM is included for a multi-junction solar cell of a solar cell arrangement.    DESCRIPTION OF DRAWING(S) - The diagram shows an enlarged cross-sectional view of the solar cell.    First substrate (101)    Buffer layer (103)    Etch stop layer (104)    Contact layer (105)    Window layer. (106)