Cooling device for radiation sources during production of printing form, comprises cooling body formed of thermally conductive material, secured to lower side of heat conducting plate and having duct for circulating cooling fluid

摘要

A cooling device for radiation sources during production of printing form comprises a cooling body (14) formed of a thermally conductive material having a thermal expansion coefficient adapted to the semiconductor substrate, and having at least one duct (15) for circulating a cooling fluid, and the cooling body being secured to the lower side of heat conducting plate (12). A cooling device for radiation sources during production of printing form, comprises: (a) an electrically insulating, heat conducting plate having an upper side and a lower side; (b) a metallic layer for conducting an operative current and heat, and applied to the upper side of the heat conducting plate; (c) a semiconductor substrate (4) forming the radiation sources (laser diodes) and secured onto the metallic layer; and (d) a cooling body formed of a thermally conductive material having a thermal expansion coefficient adapted to the semiconductor substrate, and having at least one duct for circulating a cooling fluid, and the cooling body being secured to the lower side of the heat conducting plate.