摘要:
A method for bonding two silicon substrates and a corresponding system of two silicon substrates. The method includes: providing first and second silicon substrates; depositing a first bonding layer of pure aluminum or of aluminum-copper having a copper component between 0.1 and 5% on a first bonding surface of the first silicon substrate; depositing a second bonding layer of germanium above the first bonding surface or above a second bonding surface of the second silicon substrate; subsequently joining the first and second silicon substrates, so that the first and the second bonding surfaces lie opposite each other; and implementing a thermal treatment step to form an eutectic bonding layer of aluminum-germanium or containing aluminum-germanium as the main component, between the first silicon substrate and the second silicon substrate, spikes which contain aluminum as a minimum and extend into the first silicon substrate, forming at least on the first bonding surface.
摘要:
The present invention relates to a method and a device for determining the spatial position of a sensor, in which a rough position information initially is determined by rough detection of the position of the sensor, and then the more accurate position of the sensor is obtained by measuring at least three reflectors mounted on the sensor with a laser tracker, wherein the search region of the laser of the laser tracker is limited for the reflectors with reference to the rough position information.
摘要:
A method and apparatus is provided for printing using paste like inks such as those used in intaglio printing, wherein the inks include specialty flakes such as thin film optically variable flakes, or diffractive flakes. The invention discloses an apparatus having an energy source such as a heat source for temporarily lessening the viscosity of the ink during alignment of the flakes within the ink.
摘要:
In a method for the determination of the 3D coordinates of an object (2), a pattern is projected (1) onto the object (2) and the pattern reflected by the object (2) is taken (3) and evaluated. To improve such a method, a pattern is projected onto a first part region (12) of the object (2) in a first step and the pattern reflected by this part region (12) of the object (2) is taken. In a second step, a pattern is projected onto a second part region of the object (2) and the pattern reflected by this part region of the object (2) is taken. The patterns taken are evaluated.
摘要:
In a method for 3D digitization of an object (1), a plurality of camera images of the object are recorded and assembled to determine the 3D coordinates of the object. To improve such method, pictures are taken from the object (1), from which 2D feature points (11, 12, 13; 21, 22, 23) of the object (1) are determined. The 3D coordinates of the 2D feature points are determined. The 2D point correspondences (32, 32, 22) between the 2D feature points of a picture and the 2D feature points of another picture are determined. Several of these 2D point correspondences are selected, and an associated 3D transformation is determined. The quality of this 3D transformation is determined with reference to the transformed 3D coordinates of the 2D feature points. Valid 3D feature points are determined therefrom. For assembling the camera images of the object (1), the 3D coordinates of the valid 3D feature points are used.
摘要:
A phase/frequency detector has a modulo counter for outputting a counter word with a predetermined word length depending on an oscillator signal. In addition, a modulo integrator for outputting an integrator word with the predetermined word length as a function of integration of a channel word is provided. The phase/frequency detector also has a difference element for outputting a phase error word with the predetermined word length as a function of a difference between the counter word and the integrator word.
摘要:
A method serves for the determination of the 3D coordinates of an object (2). A fringe pattern is projected onto the object (2) in the method. The light reflected by the object (2) is recorded and evaluated. To improve such a method, the fringe pattern is projected onto the object (2) by an imaging element (only FIGURE).
摘要:
This invention relates to a method and an apparatus for the three-dimensional digitization of objects with a 3D sensor, which comprises a projector and one or more cameras, in which a pattern is projected onto the object by means of the projector, and the pattern is detected with the one or more cameras. In accordance with the invention, the method and the apparatus are characterized in that at least three reference marks and/or a reference raster are projected onto the object with the 3D sensor and are detected with two or more external, calibrated digital cameras.
摘要:
A polar modulator arrangement has a first and a second node to receive a digital signal with a first and a second component corresponding to a digital amplitude component and a digital phase component. A digital interpolation filter generates an interpolated first component by interpolating and filtering the first component. A polar modulated radio frequency signal is generated by a combination element as a function of the interpolated first component and the second component.
摘要:
The present disclosure relates to different techniques of generation of a transmission signal, as for example, a transmitting apparatus for transmitting a communication signal and a method for transmitting a communication signal.