摘要:
A highly reactive conversion coating chemistry is used during CAVF processing of high hardness steel alloys such as AMS 6509 and AMS 6517 steel alloys. This chemistry produces a hard, thin, black conversion coating that is not fully rubbed off by the media during the CAVF process. Distressed material regions on the surface of the alloys are not susceptible to forming the conversion coating and remain white. Visual inspection for the presence of such regions is facilitated.
摘要:
The invention relates to a method for the vibratory grinding and adhesion-promoting passivating of metal components, which at least partially comprise metals and/or alloys selected from aluminum, magnesium and/or zinc, in one operation employing an aqueous composition having a pH value between 0.3 and 3.5, containing complex fluorides of the elements of boron, silicon, titanium, zircon or hafnium individually or mixed together in concentrations of the fluoro anions of between 100 and 4000 ppm in total as a vibratory grinding medium, and to a component produced directly using this method, and to the use thereof for structural adhesion or for applying other corrosion-protecting coatings. The present invention further relates to the use of a concentrate in order to produce the vibratory grinding medium in the method according to the invention.
摘要:
An acidic aqueous slurry composition comprising silica abrasive particles, an oxidizer, a quaternary ammonium hydroxide; and acid having a maximum pKa of about 2.5; and water is provided along with its use for polishing.
摘要:
A metal surface protection film forming agent containing a specific Α−amino acid such as leucine and phenyl alanine, and a metal abrasive liquid using this. The agent can be used as an abrasive liquid used in a chemical−mechanical polishing method in semiconductor circuit fabrication, is composed of various safe additives light in environmental load, and can restrict the dishing of metal wiring especially copper metal wiring and corrosion during polishing. Such a specific Α−amino acid used adsorbs to a wiring metal surface, especially a copper metal surface buried in a substrate recess or reacts with the metal to prevent the elution of the metal and forms a protection film on the metal surface. A metal surface protection film forming agent and a method of polishing a substrate surface for producing a semiconductor−use substrate, a method of forming a metal surface protection film, the application of the specific amino acid to a metal surface protection film forming agent, and a semiconductor circuit−use substrate using them, a semiconductor circuit containing it and methods of producing them.
摘要:
An abrasive liquid for a metal comprising (1) an oxidizing agent for a metal, (2) a dissolving agent for an oxidized metal, (3) a first protecting film-forming agent such as an amino acid or an azole which adsorbs physically on the surface of the metal and/or forms a chemical bond, to thereby form a protecting film, (4) a second protecting film-forming agent such as polyacrylic acid, polyamido acid or a salt thereof which assists the first protecting film-forming agent in forming a protecting film and (5) water; and a method for polishing.
摘要:
The present invention provides methods of wet processing electronic components having surfaces containing copper. In the methods of the present invention, copper containing electronic components are contacted with a copper oxidizing solution containing an oxidizing agent, and subsequently contacted with an etching solution. The methods of the present invention are particularly useful for cleaning copper containing components.
摘要:
It is an object of the present invention to provides an aqueous CMP dispersion with an adequately high initial removal rate, and which, even after repeated polishing, exhibits at least one, and preferably two or more, of the following functions and effects: (1) reduction of performance of polishing pads is suppressed and an adequate removal rate is maintained, (2) generation of pits on polishing surfaces is inhibited, and (3) uneven sections on polishing surfaces are flattened, and satisfactory finished surfaces can be formed with high precision. The aqueous CMP dispersion comprises an abrasive, an organic compound and water. The organic compound with an effect of suppressing reduction of performance of polishing pads may be biphenol, bipyridyl, vinylpyridine, adenine or the like. The organic compound with an effect of inhibiting generation of pits on polishing surfaces may be biphenol, bipyridyl, vinylpyridine, hypoxanthine or the like. The organic compound with an effect of flattening uneven sections on polishing surfaces may be biphenol, bipyridyl, vinylpyridine, salicylaldoxime or the like. The aqueous CMP dispersion of the present invention that contains specific organic compounds has at least one and especially two functions and effects from among that of suppressing reduction of performance of polishing pads, that of suppressing void wearing of polishing surfaces and that of flattening polishing surfaces, as well as a combination of these three functions and effects, even with repeated polishing. The aqueous CMP dispersion is particularly useful for polishing of copper films, and can form satisfactory finished surfaces with high precision.