Verfahren zum Fügen von Bauteilen auf eine Trägerstruktur unter Einsatz von elektromagnetischer Strahlung

The present invention relates to a method for joining components (2), in particular micro-optical components, on a support structure (1) using electromagnetic radiation (4). In the method, a solder (3) is applied to at least one of in each case two surface areas that are to be connected of the components (1, 2) to be joined or introduced between in each case two surface areas that are to be connected of the components (1, 2) to be joined. The surface areas that are to be connected are then positively connected to one another by melting the solder (3) with the aid of electromagnetic radiation (4) and subsequent cooling. In the method, an active solder (3) is used as a solder, which, in the absence of a flow means, achieves a wetting of the surface areas that are to be connected, which is sufficient for producing the solder connection. The electromagnetic radiation (4) is directed through one of the components to be joined (1), which is at least partially permeable to the electromagnetic radiation (4), onto the active solder (3). By using the proposed method, in particular optical components (2) can be connected with a support structure (1) in a simple manner without the use of expensive additional coatings

The enhanced x-ray timing and polarimetry mission – eXTP: an update on its scientific cases, mission profile and development status

The enhanced x-ray timing and polarimetry mission (eXTP) is a flagship observatory for x-ray timing, spectroscopy and polarimetry developed by an international consortium. Thanks to its very large collecting area, good spectral resolution and unprecedented polarimetry capabilities, eXTP will explore the properties of matter and the propagation of light in the most extreme conditions found in the universe. eXTP will, in addition, be a powerful x-ray observatory. The mission will continuously monitor the x-ray sky, and will enable multi-wavelength and multi-messenger studies. The mission is currently in phase B, which will be completed in the middle of 2022