Abstract:
Disclosed is an article support or handling material configured to support an article to be placed in a beam path of a radiation beam of a lithographic apparatus. The article support or handling material comprises a glass-ceramic material which exhibits a fracture toughness of greater than 1.5 MPa/m 1/2 , a thermal expansion of less than 1.0Œ10 -6 K -1 , a thermal conductivity greater than about 3.5 W/(m.K), an elastic modulus of greater than 120 GPa, a high elastic-to-density ratio in excess of 40 GPa cm≈/g, and a thermal stability coefficient ≤ 0.25. In one embodiment this glass-ceramic material is a cordierite glass-ceramic material.
Abstract:
A manufacturing method including the step of forming an adhesive layer (12) over the surface of a ceramic substrate (11) enables the manufacture of a ceramic multilayered circuit board of a high dimensional precision comprising a monolithic block of the ceramic substrate (11) and a ceramic green sheet (14) with almost no in−plane shrinkage after baking.
Abstract:
Various sapphire and laminate structures are discussed herein. One embodiment may take the form of a sapphire structure having a first sapphire sheet with a first sapphire plane type forming the major surface and a second sapphire sheet having a second different sapphire plane type forming the major surface. The first and second sapphire sheets are fused together to form the sapphire structure.
Abstract:
Die Erfindung betrifft ein Metall-Keramik-Substrat sowie ein Verfahren zu dessen Herstellung umfassend zumindest eine Keramikschicht (2), die an einer ersten Oberflächenseite (2a) mit mindestens einer ersten, durch eine Folie oder Schicht aus Kupfer oder einer Kupferlegierung gebildeten Metallisierung (3) versehen ist, und einer entweder direkt oder indirekt mit einer der ersten Oberflächenseite (2a) gegenüberliegenden zweiten Oberflächenseite (2b) verbundenen zweiten Metallisierung (4). Besonders vorteilhaft ist die zweite Metallisierung (4) durch eine mittels eines Kaltgasspritzverfahrens erzeugte Schicht aus Aluminium gebildet.
Abstract:
Various sapphire and laminate structures are discussed herein. One embodiment may take the form of a sapphire structure having a first sapphire sheet with a first sapphire plane type forming the major surface and a second sapphire sheet having a second different sapphire plane type forming the major surface. The first and second sapphire sheets are fused together to form the sapphire structure.
Abstract:
The invention relates to a method for connecting two components (1, 2) having different stiffnesses (E1, E2), comprising: bonding a plate-shaped body (3) onto the component (1) having greater stiffness (E1), the bonding being preferably performed using a joining agent, in particular an adhesive, correcting deformations produced by the bonding on the plate-shaped body (3), and connecting the component (2) having the lower stiffness (E2) to the plate- shaped body (3), in particular by wringing, by anodic bonding or by fusion bonding. The invention also relates to a composite structure (5), which has been produced according to the method and which can serve, for example, as a holding device for a wafer (6). Moreover, the first component (1) can serve as a carrier for the second component (2), e.g. if the latter is embodied as an EUV mirror.