摘要:
An optical subassembly with an optical element, for example a mirror element (7), has an optical surface (9) and bearing points (12) arranged on the circumference. The optical element (7) is connected to a mount (13) at the bearing points (12) via connecting elements (14, 15, 16, 17, 18). Stress-decoupling cutouts, for example curved slots (11), are provided between the optical surface (9) and the bearing points (12).
摘要:
There is provided an optical imaging arrangement comprising: a mask unit (3) comprising a pattern (3.1) a substrate unit (4) comprising a substrate (4.1), an optical projection unit (2) comprising a group (5) of optical element units, the optical projection unit (2) being adapted to transfer an image of the pattern (3.1) onto the substrate (4.1), a first imaging arrangement component (8.1), the first imaging arrangement component being a component of one of the optical element units, a second imaging arrangement component (4.2), the second imaging arrangement component being different from the first imaging arrangement component and being a component of one of the mask unit (3), the optical projection unit (2) and the substrate unit (4), and a metrology arrangement (10). The metrology arrangement captures a spatial relationship between the first imaging arrangement component and the second imaging arrangement component. The metrology arrangement comprises a reference element, the reference element (10.2) being mechanically connected directly to the first imaging arrangement component.
摘要:
There is provided an optical element comprising an optical element body (107.1, 108.1), a reflecting area (107.4, 108.4) and an optical passageway (107.6, 108.6). The optical element body defines an axis of rotational symmetry (107.3, 108.3). The reflecting area is disposed on the optical element body and adapted to be optically used in an exposure process. The optical passageway is arranged within the optical element body and allows light to pass the optical element body, the optical passageway being arranged eccentrically with respect to the axis of rotational symmetry.
摘要:
An optical apparatus includes an interchange mechanism and an optical assembly of an illumination system or a projection objective. At least one of the plurality of optical elements of the optical assembly is selected from among a plurality of ones selectable from the interchange mechanism which facilitates exchange of one for another in the beam path. To reduce transmission of vibration from the interchange mechanism to the optical assembly, the interchange mechanism is mounted on a structure which is substantially dynamically decoupled from the housing, and a selected selectable optical element is located at an operating position at which it is separate from the interchange mechanism.
摘要:
The invention relates to an optical imaging device, in particular an objective 1 for microlithography in the field of EUVL for producing semiconductor components, having a beam path 2, a plurality of optical elements 3 and a diaphragm device 7 with an adjustable diaphragm opening shape. The diaphragm device has a diaphragm store 7a, 7b with a plurality of different diaphragm openings 6 with fixed shapes in each case, which can be introduced into the beam path 2.
摘要:
An optical subassembly with an optical element, for example a mirror element (7), has an optical surface (9) and bearing points (12) arranged on the circumference. The optical element (7) is connected to a mount (13) at the bearing points (12) via connecting elements (14, 15, 16, 17, 18). Stress-decoupling cutouts, for example curved slots (11), are provided between the optical surface (9) and the bearing points (12).
摘要:
An optical assembly comprises a connecting body (1) consisting of at least a first and a second part (3, 4), the body (1) being connected to an assembly means (2) of a ceramic material wherein the assembly means (2) consists of at least a first and a second part (17, 18) separated by a gap (19).
摘要:
An optical assembly comprises at least one optical element movable in at least two degrees of freedom and at least one actuator for adjusting the least one optical element; at least one sensor for sensing the position of the at least one element in at least two degrees of freedom and is characterized in that the at least one sensor is located at least substantially diagonally opposite to the least one actuator.