NOVELTY - Micro-reformer comprises two substrates, each having a grooved path and a catalyst layer formed on an inner surface of the grooved path. The two grooved paths (42, 62) are overlapped on each other forming a micro-channel. The micro-channel has two ends having respective fuel inlet (46) and a hydrogen outlet (48), a reforming section (10) in one portion of the micro-channel and a carbon monoxide removing section (30) in the other portion of the micro-channel. A heating mechanism (66) has a heater disposed in the micro-channel.    USE - The micro-reformer is used for producing hydrogen gas from a liquid fuel (claimed). It is used for a micro fuel cell using a liquid fuel-like methanol.    ADVANTAGE - The micro-reformer has increased the hydrogen emission amount per time with increased area of an inner flow path, operable with low power due to efficient disposition of a heater, and manufactured by a semiconductor process, allowing mass production at low costs. It has a heating mechanism inside a flow path for high heat efficiency and a deep and wide flow path for high reforming efficiency per capacity. It has a reforming section and a carbon monoxide removing section disposed alongside while the heater is efficiently disposed in the micro-channel to enhance heat efficiency, allowing excellent reforming effect. The grooved paths are formed on both substrates, and overlapped on each other to form the micro-channel, thus increasing the areas of the micro-channel and the catalyst layer and hydrogen emission amount per time and yielding an excellent reforming effect. The heating mechanisms are disposed inside the micro-channel to heat the inner space of the micro-channel, thus enhancing heat efficiency and allowing the reformer to operate with low power. The substrates can be machined via a semiconductor process, e.g. Microelectromechanical systems (MEMS), to allow mass production at low costs. The first substrate has enhanced durability and thermal stability while simplifying the manufacturing processes at low costs.    DETAILED DESCRIPTION - Micro-reformer comprises two substrates and a heating mechanism. Each substrate has a first grooved path and a catalyst layer formed on an inner surface of the grooved path. The second grooved path and the second catalyst layer correspond to the first grooved path and the catalyst layer of the first substrate (40). The two grooved paths are overlapped on each other forming a micro-channel. The micro-channel has two ends having respective fuel inlet and a hydrogen outlet, a reforming section in one portion of the micro-channel and a carbon monoxide removing section in the other portion of the micro-channel. The heating mechanism has a heater disposed in the micro-channel.    An INDEPENDENT CLAIM is included for manufacturing method of the above micro-reformer.    DESCRIPTION OF DRAWING(S) - The figure is an exploded perspective view illustrating the micro-reformer.    Reforming section (10)    Carbon monoxide removing section (30)    First substrate (40)    Grooved paths (42, 62)    Fuel inlet (46)    Hydrogen outlet (48)    Heating mechanism (66)