Abstract:
A method for transferring a pattern from an elastic stamp to a substrate in the presence of a third medium is described. A proximity contact is achieved between the stamp and the substrate. A layer of the third medium between the stamp and the substrate is controlled to a predetermined thickness. Stamps for carrying out this method are also described.
Abstract:
A method of forming a semiconductor is provided and includes patterning a pad and a nanowire onto a wafer, the nanowire being substantially perpendicular with a pad sidewall and substantially parallel with a wafer surface and epitaxially growing on an outer surface of the nanowire a secondary layer of semiconductor material, which is lattice mismatched with respect to a material of the nanowire and substantially free of defects.
Abstract:
A method for printing a binary hologram on a manufactured product comprises the provision of a stamp with a pattern corresponding to the hologram (30). The product is initially coated with a metal layer. The stamp is inked with a masking solution (40) and pressed against the manufactured product (50). Then, the hologram print is obtained by selective etching of parts of the metal layer which are not masked (60). The method is adapted for printing holograms on optical lenses.
Abstract:
A method for printing a binary hologram on a manufactured product comprises the provision of a stamp with a pattern corresponding to the hologram (30). The product is initially coated with a metal layer. The stamp is inked with a masking solution (40) and pressed against the manufactured product (50). Then, the hologram print is obtained by selective etching of parts of the metal layer which are not masked (60). The method is adapted for printing holograms on optical lenses.
Abstract:
A stamp for transferring a pattern to a substrate in the presence of a third medium, includes a permeable hydrophilic matrix for guiding excess third medium away from the surface of the stamp.
Abstract:
A stamp device for printing a pattern on a surface of a substrate having a two-sided rigid carrier layer providing on its first side a patterned layer made of a first material and being combined on its second side with a soft layer made of a softer material than that of the first material.
Abstract:
Optical lithography scheme making use of light coupling structures, and elastomeric light coupling structures in particular. These light coupling structures comprise protruding portions and connecting portions. The protruding elements are designed to be brought into conformal contact with a resist to be exposed such that the light guided into the protruding elements is coupled from there directly into the resist. The lateral shape and size of the protruding elements defines 1:1 the lateral size and shape of small features to be exposed in the resist.
Abstract:
Ein Verfahren zur Herstellung eines monokristallinen Blatts (11), insbesondere eines Siliciumblatts (11), umfasst das Folgende: Bereitstellen von mindestens zwei Öffnungselementen (1, 2), welche zwischen sich eine Lücke (3) bilden; Bereitstellen einer geschmolzenen Legierung (4), welche Silicium umfasst, in der Lücke (3) zwischen den mindestens zwei Öffnungselementen (1, 2); Bereitstellen eines gasförmigen Vorstufenmediums (5), welches Silicium umfasst, in Nachbarschaft der geschmolzenen Legierung (4); Bereitstellen eines Silicium-Keimkristalls (6) in Nachbarschaft der geschmolzenen Legierung (4) und In-Kontakt-Bringen des Silicium-Keimkristalls (6) mit der geschmolzenen Legierung (4). Eine Einheit (10, 20) zur Herstellung eines monokristallinen Blatts (11), insbesondere eines Siliciumblatts (11), umfasst mindestens zwei Öffnungselemente (1, 2) in einem vorgegebenen Abstand (D) voneinander, wodurch eine Lücke (3) gebildet wird, und welche dafür geeignet sind, erwärmt zu werden, um einest, durch die Oberflächenspannung in der Lücke (3) zwischen den Öffnungselementen (1, 2) zu halten; ein Mittel (15) zum Zuführen eines gasförmigen Vorstufenmediums (5), welches Silicium umfasst, in die Nachbarschaft der geschmolzenen Legierung (4) und ein Positioniermittel (16) zum Halten und Bewegen eines Keimkristalls (6) in Nachbarschaft der geschmolzenen Legierung (2).
Abstract:
A stamp for patterning onto a receiving surface (103) of an object (101) according to a defined pattern (P) comprises a stamping surface (21) of a resilient diaphragm (20). The stamping surface (21) is planar at rest. The pattern (P) is reproduced on the stamping surface (21) and the diaphragm (20) is affixed to a rigid body (13) along a peripheral edge, so that a middle part of the diaphragm (20) can move along a direction perpendicular to the stamping surface (21). The diaphragm (20) is more flexible near the peripheral edge than in the middle part. Then, the pattern (P) printed on a pseudo-spherical receiving surface (103) using the stamp exhibits few distortion.
Abstract:
A stamp for transferring a pattern to a substrate in the presence of a third medium, includes a permeable hydrophilic matrix for guiding excess third medium away from the surface of the stamp.