Abstract: A system for plating according to one embodiment includes a plating cell containing plating solution; an anode in contact with the plating solution; a cathode in contact with the plating solution; and a hydrogen electrode in contact with the plating solution.

Abstract: A system for plating according to one embodiment includes a plating cell containing plating solution; an anode in contact with the plating solution; a cathode in contact with the plating solution; and a hydrogen electrode in contact with the plating solution.

Abstract: A system and method for reducing ferric ion content in a plating solution by exposing hydrogen to an electrode in a plating solution for reducing a ferric ion content in the plating solution.

Abstract: A system and method for reducing ferric ion content in a plating solution by exposing hydrogen to an electrode in a plating solution for reducing a ferric ion content in the plating solution.

Abstract: In order to prevent salt precipitation after plating a wafer surface, the described cleaning process applied to the wafer covered with a plating solution uses a complex former solution or the solution of an acid. The presence of a suitable complex former enhances the solubility of heavy metal ions typically by orders of magnitudes. Hereby a precipitation of salts is avoided. After plating, the wafer is necessarily covered with a plating solution. In a first cleaning step, the solution of the complex former is applied on the wafer surface. This procedure reduces the amounts of plating salts in the solution and keeps the solubility of the remaining salts high at the same time due to a formation of soluble metal complexes. After that step, the wafer is completely covered with clean complex solution. This solution is removed in a following step by a stream of de-ionized water, leading to a clean, water-covered wafer. The drying of the wafer can be performed in a conventional procedure (e.g.

Abstract: The invention relates to a scraper arrangement for attachment to at least one of at least two machine parts which are movable relative to one other, particularly for protection of guideways in machine tools. In this case a scraper strip made from elastically deformable material is replaceably retained on a rigid carrier strip which for its part is releasably connected to a machine part. With a view to a reliable attachment and quick replacement of carrier strip and scraper strip, at least one approximately strip-shaped intermediate carrier can be firmly attached to one machine part and with the aid of at least one C-shaped clamp can be replaceably fixed on a front end edge region of the machine part.

Abstract: In order to improve the operational reliability of an extending system with at least four extending elements (10, 20, 30, 40, 50) which are disposed behind one another and can be moved relative to one another in a direction of extension (B) as well as a direction of insertion (A) opposed thereto between an inserted position and an extended position it is proposed that for coupling the motion of the individual extending elements (10, 20, 30, 40, 50) a coupling arrangement be used which has a coupling element (28) which runs round a return spindle (24, 26), wherein the said return spindle is fixed relative to the middle extending element (20) of a group of three extending elements (10, 20, 30) disposed behind one another and extends perpendicular to the direction of extension, and the said coupling element (28) is movable along a path which is fixed relative to the return spindle (24, 25) and runs round the latter, the coupling arrangement also having two entraining elements (12, 31) which on the one hand are c

Abstract: The invention relates to a telescopic cover with support rollers which are mounted so as to be rotatable about a first axis which extends at right angles to the direction of travel and capable of limited pivotal movement about a second axis which extends in the direction of travel through the center of the support roller. Such a telescopic cover is distinguished by statically satisfactory mounting of the support rollers even when transverse forces occur.

Abstract: The invention relates to a telescopic cover composed of multiple boxes in which three guide elements are provided for guiding two adjacent boxes in the region of each side wall, and of these at least one guide element extends over the length of the appertaining box by a specific dimension in the extended state of the two boxes and furthermore at least one of the three guide elements is releasable from the appertaining box. In this way a small compressed dimension of the telescopic cover can be produced even with very wide boxes and at the same time a self-supporting construction can be achieved in a simple manner which saves on material.

Abstract: A protective cover for a machine bed comprises a plurality of cover boxes telescopically slidable relative to one another and a locking mechanism comprising two pawls by means of which the smallest cover box may be locked to the end of the machine bed or to the largest cover box. The locking mechanism is distinguished by a simple structure and lightness in weight and may be retrofitted to already existing covers.

Abstract: This invention relates to an improvement in an apparatus for developing printing plates comprising pairs of upper and lower rolls adapted to convey said printing plates, bearing means at each end of each upper roll, and toggle lever means adapted to raise and lower said upper rolls with respect to said lower rolls, the improvement comprising a plurality of pivotal forked head means each having an upper and lower arm adapted to engage each of said bearing means, swivel shaft means supporting said forked head means and being parallel to the conveying direction of said printing plates, said upper arms of said forked head means being adapted to exert pressure on the top of said bearing means when said bearing means is in a lowered position, and said lower arms of said forked head means being adapted to support said bearing means in a raised position, means connecting one end of a toggle lever means to each forked head means, and means connecting the other end of said toggle lever means to a rotatable control shaf