Abstract: A device and appertaining method for picking up devices in a component placement device permits even very small components and even a first component of a new belt to be picked up by scanning the structural features of the belt directly in the proximity of the components. The positional tolerances can be disregarded so that even the first component of a new belt can be reliably detected by the pick-up tool.

Abstract: Radiation-sensitive elements are described whose radiation-sensitive coating comprises both a photopolymerizable oligomer with a biuret structural unit and a photopolymerizable phosphazene oligomer.

Abstract: A device and appertaining method for picking up devices in a component placement device permits even very small components and even a first component of a new belt to be picked up by scanning the structural features of the belt directly in the proximity of the components. The positional tolerances can be disregarded so that even the first component of a new belt can be reliably detected by the pick-up tool.

Abstract: Radiation-sensitive elements are described whose radiation-sensitive coating comprises both a photopolymerizable oligomer with a biuret structural unit and a photopolymerizable phosphazene oligomer.

Abstract: Polymeric acetal resins useful in lithographic printing are disclosed. The polymeric acetal resin contains units (A), (B), (C), (D), and (E). Unit (A) is a vinyl alcohol unit. Unit; (B) is a polyvinyl acetal unit containing an R group, where R is hydrogen, an aliphatic group, an aromatic group, or an arylaliphatic group. Unit (C) is a vinyl carboxylate unit. Unit (D) is an acidic vinyl acetal unit and/or a residue of an acidic vinyl monomer. Unit (E) is a free radical polymerization-inhibiting vinyl acetal unit and/or a free radical polymerization-inhibiting vinyl alcohol ester unit. The resin comprises about 10 to about 60 mol % of unit (A), about 5 to about 60 mol % of unit (B), about 0.3 to about 30 mol % of unit (C), about 1 to about 40 mol % of unit (D), and about 0.01 to about 2 mol % of unit (E).

Abstract: Infra-red absorbing polymers useful in imageable products and the lithographic printing field comprise infra-red absorbing groups carried as pendent groups on a polymer backbone. Certain infra-red absorbing groups may also act to insolublize the polymer in a developer, until it is imagewise exposed to infra-red radiation. The resulting heat renders the polymer soluble in the developer. Imageable products employing the infra-red absorbing polymers may include positive working lithographic printing plates.

Abstract: Polymeric acetal resins useful in lithographic printing are disclosed. The polymeric acetal resin contains units (A), (B), (C), (D), and (E). Unit (A) is a vinyl alcohol unit. Unit; (B) is a polyvinyl acetal unit containing an R group, where R is hydrogen, an aliphatic group, an aromatic group, or an arylaliphatic group. Unit (C) is a vinyl carboxylate unit. Unit (D) is an acidic vinyl acetal unit and/or a residue of an acidic vinyl monomer. Unit (E) is a free radical polymerization-inhibiting vinyl acetal unit and/or a free radical polymerization-inhibiting vinyl alcohol ester unit. The resin comprises about 10 to about 60 mol % of unit (A), about 5 to about 60 mol % of unit (B), about 0.3 to about 30 mol % of unit (C), about 1 to about 40 mol % of unit (D), and about 0.01 to about 2 mol % of unit (E).

Abstract: Imageable precursors for masks and for electronic parts comprise a polymeric layer applied to a substrate. The layer comprises at least one polymer having infra-red absorbing groups carried as pendent groups on the polymer backbone. Certain infrared absorbing groups may also act to insolubilize the polymer in a developer, until it is imagewise exposed to infra-red radiation. Imagewise application of heat, resulting from imagewise exposure of the precursor to infra-red radiation, renders the polymer layer more soluble in the developer than prior to exposure to the infra-red radiation.

Abstract: Infra-red absorbing polymers useful in imageable products and the lithographic printing field comprise infra-red absorbing groups carried as pendent groups on a polymer backbone. Certain infra-red absorbing groups may also act to insolublize the polymer in a developer, until it is imagewise exposed to infra-red radiation. The resulting heat renders the polymer soluble in the developer. Imageable products employing the infra-red absorbing polymers may include positive working lithographic printing plates.

Abstract: A device and appertaining method for picking up devices in a component placement device permits even very small components and even a first component of a new belt to be picked up by scanning the structural features of the belt directly in the proximity of the components. The positional tolerances can be disregarded so that even the first component of a new belt can be reliably detected by the pick-up tool.

Abstract: A method of manufacturing a selectively relief-treated image member that comprises: (a) providing a precursor of the image member, the precursor comprising a surface having an image-forming layer comprising a photosensitive resist composition comprising: (i) a polymerizable material, and (ii) a binder; (b) delivering radiation image-wise to the precursor; (c) developing the precursor in a developer in order to selectively remove the image-forming layer in regions to which said radiation was not delivered image-wise in step (b); and (d) contacting the image-wise exposed precursor with a relief-treatment material, in order to selectively relief-treat regions of the surface of the precursor in which the image-forming layer was removed on development in step (c).

Abstract: Imagable precursors for masks and for electronic parts comprise a polymeric layer applied to a substrate. The layer comprises at least one polymer having infra-red absorbing groups carried as pendent groups on the polymer backbone. Certain infra-red absorbing groups may also act to insolubilize the polymer in a developer, until it is imagewise exposed to infra-red radiation. Imagewise application of heat, resulting from imagewise exposure of the precursor to infra-red radiation, renders the polymer layer more soluble in the developer than prior to exposure to the infra-red radiation.

Abstract: A method of manufacturing a selectively relief-treated image member comprises:

Abstract: Infra-red absorbing polymers useful in imageable products and the lithographic printing field comprise infra-red absorbing groups carried as pendent groups on a polymer backbone. Certain infra-red absorbing groups may also act to insolublize the polymer in a developer, until it is imagewise exposed to infra-red radiation. The resulting heat renders the polymer soluble in the developer. Imagable products employing the infra-red absorbing polymers may include positive working lithographic printing plates.

Abstract: In a method and device for detecting the position of components, the relative position of terminals and/or edges of components relative to a transport device is obtained using a camera with an image evaluation unit connected downstream that obtains an image containing the terminals together with a position marking securely connected to the transport device. The position marking is itself located in the immediate vicinity of the terminals or is imaged at such a location via an optical imaging element. A more precise position detection is assured. A fast position detection is also realized given a moving transport device and a short exposure time for the imaging by the camera.

Abstract: The position recognition of components placed on substrates has hitherto ensued visually outside the automatic equipping unit. This is complicated and the components lying at the bottom cannot be seen given placement of a number of components above one another. In the method disclosed herein, the position of the placed components in the automatic equipping unit is identified shortly after the actual placement process with a position sensor located in the automatic equipping unit. As a result, errors are recognized early and the automatic equipping unit can therefore be more easily adjusted in view of the positional precision. A camera with a following image evaluation unit is employed as the position sensor.

Abstract: In a device and method for detecting the position of components and/or for checking the position of terminals of components, and an insertion head with such a device for detecting the position of components and/or for checking the position of terminals of components, the components are illuminated with vertically incident light, with multi-directional, obliquely incident light, and with horizontally incident light, so that the side surfaces of the components, and thus the projecting terminals as well are sufficiently illuminated. For the horizontal illumination, a light deflection element is employed wherein light is emitted by a light source into the light deflection element, is reflected at a first outer wall of the light deflection element, and is directed into an opening of the light deflection element in which the component is disposed.

Abstract: A configuration for positioning components within the compartments on a delivery belt prior to their removal by an onserting apparatus. The configuration can include a brush and a vibrator.

Abstract: An mounting apparatus for mounting an electrical component onto a substrate of an electrical assembly. The mounting apparatus employs a compensating element to facilitate the component mounting operation. The compensating element includes a spring member and a damping member. The spring member applies an optimal contact pressure for securely mounting said component without damaging the component. The damping element acts to damp the spring member during so as to effectively reduce a spring force that acts on the mounting apparatus during the component delivery stage.

Abstract: Method of checking for the presence of connection balls of components, in particular of ball grid arrays by projecting light obliquely onto the components to create reflections and shadows at the connection balls and any impurities, detecting the reflections and shadows and evaluating the detected shadows and reflections to determine which are from connection balls and which are from impurities.