NOVELTY - A thin type reforming apparatus (1) comprises a substrate (10); a fuel inlet (20) for introducing fuel to the passage; an evaporator (30) disposed within the substrate downstream of the fuel inlet, and including a bubble remover (32) for imparting a flow resistance to the fuel in a liquid state, removing bubbles and vaporizing the fuel; a reformer (40) having a passage formed downstream of the evaporator; a carbon monoxide remover having a passage formed downstream of the reformer; and a cover (100) for covering an upper portion of the substrate and sealing the passages from an outside.    USE - For a fuel cell.    ADVANTAGE - The thin type reforming apparatus has a differently structured evaporator that supplies fuel in the form of droplets to increase the surface area of the fuel, so that when the same amount of fuel is vaporized, an increased evaporating efficiency can be obtained. The reforming apparatus can effectively prevent reverse flow of supplied fuel due to back pressure. The reforming apparatus can facilitate the removal of bubbles in the liquid fuel during evaporation of the fuel, prevent a buildup of back pressure, and increase heat transfer efficiency to efficiently vaporize liquid fuel and improve performance.    DETAILED DESCRIPTION - A thin type reforming apparatus for a fuel cell, comprises:    (1) a substrate having a passage (42);    (2) a fuel inlet for introducing fuel to the passage;    (3) an evaporator disposed within the substrate downstream of the fuel inlet, and including a bubble remover for imparting a flow resistance to the fuel in a liquid state, removing bubbles and vaporizing the fuel;    (4) a reformer having a passage formed downstream of the evaporator, where the reformer reforms the fuel to hydrogen gas through a heat absorbing reaction;    (5) a carbon monoxide (CO) remover having a passage (62) formed downstream of the reformer, where the CO remover removes CO gas included in the hydrogen gas through a heat radiating reaction; and    (6) a cover for covering an upper portion of the substrate and sealing the passages from an outside.    The evaporator further includes a channel formed at an exit (24) of the fuel inlet. The channel is narrower than a remainder of the fuel inlet. The exit at the fuel inlet has a passage (22) width of 10-100 microns. The passage of the CO remover is formed by partitioning walls (44, 64).    DESCRIPTION OF DRAWING(S) - The figure is an exploded perspective view of the thin type reforming apparatus.    Thin type reforming apparatus (1)    Substrate (10)    Fuel inlet (20)    Passage of the fuel inlet (22)    Exit (24)    Evaporator (30)    Bubble remover (32)    Reformer (40)    Passage of the substrate (42)    Partitioning walls (44, 64)    Catalyst (46, 66)    Passage of CO remover (62)    Cover (100)