Abrégé

The imprint stamp comprises a flat support (10) having an upper side (92) and an underside (91), a layer (20) of a stamp material which is connected to the support (10) and which has a lower surface, wherein the lower surface forms a stamp side, has a stamp area in at least one region and is located below the underside (91) of the support (10), and a frame (50) which is located around the support (10) and to which the support (10) is connected. The support (10) has a perforation (80) having a plurality of cut-outs which each have an opening on the underside (91) and an opening on the upper side (92). The cut-outs connect these openings.

Classes IPC  ?

• G03F 7/00 - Production par voie photomécanique, p. ex. photolithographique, de surfaces texturées, p. ex. surfaces impriméesMatériaux à cet effet, p. ex. comportant des photoréservesAppareillages spécialement adaptés à cet effet

Abrégé

The invention relates to a screen printing frame comprising a first layer with first cavities and a second layer with second cavities. The cavities are arranged in such a manner that a printing medium can be conveyed through one of the first cavities and from there through one of the second cavities to a substrate which can be placed beneath the second layer. Web elements are arranged in the first cavities and support elements are arranged in the second cavities, said web elements being joined to the support elements, and at least one web element has a height, together with a support element, which is equal to the height of the screen printing frame. One support element supports at least one web element which is arranged thereover and one of the web elements has a vertical cross-section which is different from the vertical cross-section of one of the support elements.

Classes IPC  ?

• B41N 1/24 - StencilsMatériaux pour stencilsSupports à cet effet
• H05K 3/12 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché utilisant la technique de l'impression pour appliquer le matériau conducteur
• H01L 31/0224 - Electrodes
• H01L 31/042 - Modules PV ou matrices de cellules PV individuelles
• B41C 1/14 - Préparation de la forme ou du cliché pour l'impression au stencil ou à l'écran de soie

Abrégé

The invention relates to a screen printing stencil, comprising a first screen printing stencil layer (50), which has a first upper side and a first underside (u), wherein the stencil has a first cut-out section (1), which extends from the first upper side to the first underside, wherein the first cut-out section has a print medium inlet opening on the first upper side and a print medium outlet opening (5) on the first underside, wherein the surface of the inlet opening at a projection perpendicular to said surface no more than partially overlaps with the surface of the outlet opening, wherein the screen printing stencil comprises a second screen printing stencil layer (51) having a second upper side and a second underside (54), wherein the second upper side of the second screen printing stencil layer is connected to the first underside of the first screen printing stencil layer, wherein the second screen printing stencil layer has a second cut-out section (52) such that a print medium can be delivered from the first upper side of the first screen printing stencil layer through the first cut-out section and second cut-out section onto a substrate, which can be placed beneath.

Classes IPC  ?

• B41N 1/24 - StencilsMatériaux pour stencilsSupports à cet effet

Abrégé

The invention relates to a screen printing frame comprising: a first layer as a screen printing template carrier, designed as a high-grade steel foil and being provided with first cavities which are designed such that they reach from an upper side to a bottom side of the first layer; a second layer as a screen printing template, designed as a masking layer which is rigidly connected to the lower side of the first layer. The second layer is provided with second cavities which at least partially overlap the first cavities of the first layer such that a printing medium can be conveyed through the first cavities of the first layer from the upper side thereof through the second cavities of the second layer in the direction of the lower side onto a substrate that can be placed beneath. The surfaces of the first and/or the second cavities are provided with a coating which has a thickness which is at least 5 % of the smallest cross-section inner width of the respective cavity, the ratio of the total height of the screen printing frame to the largest cross-section inner width of the first and/or second non-coated cavity is less than 1 :1 and the ratio of the total height of the screen printing frame to the largest cross-section inner width of the first and/or second coated cavity is greater than 1 :1.

Classes IPC  ?

• B41N 1/24 - StencilsMatériaux pour stencilsSupports à cet effet
• H05K 3/12 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché utilisant la technique de l'impression pour appliquer le matériau conducteur

Abrégé

The invention relates to a screen printing frame comprising: a screen printing template carrier designed as a foil provided with first cavities, which are designed such that they reach from an upper side to a bottom side of the foil, a screen printing template designed as a masking layer, which is rigidly connected to the bottom side of the screen printing template carrier, wherein the masking layer is provided with second cavities which at least partially overlap the first cavities of the screen printing template carrier such that a printing medium can be guided through the first cavities of the screen printing template carrier from the upper side thereof through the second cavities of the masking layer in the direction of the bottom side and onto a substrate placed beneath. Said screen printing template carrier and/or the masking layer is/are designed in such a way that a projection projects into the region of at least one first and one second cavity thus reducing the passage surface thereof for a printing medium, the height of the projection in the region of the first cavity being lower than the height of the screen printing template carrier, and/or the height of the projection in the second cavity being lower than the height of the screen printing template.

Classes IPC  ?

• B41C 1/14 - Préparation de la forme ou du cliché pour l'impression au stencil ou à l'écran de soie
• H05K 3/12 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché utilisant la technique de l'impression pour appliquer le matériau conducteur
• B41N 1/24 - StencilsMatériaux pour stencilsSupports à cet effet

Abrégé

The invention relates to a silicon solar cell, comprising: a silicon layer having an emitter layer; and at least one region, within the emitter layer, porosified by chemical or electrochemical etching, at least part of the porosified region being formed of metal silicide and at least one metal layer being applied thereto.

Classes IPC  ?

• H01L 31/0224 - Electrodes

Abrégé

A screen printing frame, comprising: - a screen printing template carrier designed as a foil (2) provided with first cavities, which are designed such that they reach from an upper side to a bottom side of the foil, and – a screen printing template designed as a non-metal masking layer (5), which is rigidly connected to the bottom side of the screen printing template carrier, wherein the masking layer is provided with second cavities which at least partially overlap with the first cavities of the screen printing template carrier such that a printing medium (102) can pass through the first cavities of the screen printing template carrier from the upper side thereof in the direction of the bottom side and through the second cavities of the masking layer onto a substrate (103) placed beneath.

Classes IPC  ?

• B41N 1/24 - StencilsMatériaux pour stencilsSupports à cet effet
• B41F 15/36 - PochoirsChâssisLeurs supports plats
• B41C 1/14 - Préparation de la forme ou du cliché pour l'impression au stencil ou à l'écran de soie

Abrégé

Disclosed is a micromechanical actuator (1) comprising: - a movable first spring element (2) that contains metal and/or silicon; - a second spring element (12) which is connected to the first spring element (2) and contains silicon; - an electrically insulating material (20) on which part of the second spring element (20) is arranged; and - a substrate (11) to which the electrically insulating material (20) is attached. The second spring element (12) is arranged on a first plane above the substrate (11), at a distance from the substrate (11). The first spring element (2) is arranged on a second plane (18) above the second spring element (12). The first spring element (2) and the second spring element (12) can be moved relative to the substrate (11). The actuator (1) further comprises a third spring element (3) that is mechanically coupled to the first spring element (2). An elastic deformation of the second spring element (12) can be induced by changing the length of the third spring element (3).

Classes IPC  ?

• H01H 61/04 - Relais électrothermiques dans lesquels l'organe thermosensible est uniquement chauffé directement
• B81B 3/00 - Dispositifs comportant des éléments flexibles ou déformables, p. ex. comportant des membranes ou des lamelles élastiques