摘要:
A CMP pad conditioner comprises a plurality of abrasive segments. Each abrasive segment includes a segment blank and an abrasive layer attached to the segment blank, the abrasive layer including a superhard abrasive material. A pad conditioner substrate is also provided. Each of the plurality of abrasive segments is permanently affixed to the pad conditioner substrate in an orientation that enables removal of material from a CMP pad by the abrasive layer as the pad conditioner and the CMP pad are moved relative to one another.
摘要:
CMP pad dressers having leveled tips and associated methods are provided. In one aspect, for example, a CMP pad dresser can include a support substrate and a plurality of superabrasive particles secured to the support substrate with each superabrasive particle extending away from the support substrate to a protrusion distance, where a highest protruding tip of each of the plurality of superabrasive particles align along a designated profile with a tip variation of from about 5 microns to about 100 microns.
摘要:
Methods and systems for evaluating and/or increasing CMP pad dresser performance are provided. In one aspect, for example, a method of identifying overly-aggressive superabrasive particles in a CMP pad dresser can include positioning a CMP pad dresser having a plurality of superabrasive particles on an indicator substrate such that at least a portion of the plurality of superabrasive particles of the CMP pad dresser contact the indicator substrate, and moving the CMP pad dresser across the indicator substrate in a first direction such that the portion of the plurality of superabrasive particles create a first marking pattern on the substrate, wherein the first marking pattern identifies a plurality of working superabrasive particles from among the plurality of superabrasive particles.
摘要:
Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material.
摘要:
CMP pad dressers having leveled tips and associated methods are provided. In one aspect, for example, a method can include pressing a CMP pad dresser against a CMP pad, where the dresser includes a monolayer of a plurality of superabrasive particles protruding from a matrix layer. The difference in protrusion distance between the highest protruding tip and the second highest protruding tip of the monolayer of superabrasive particles is less than or equal to about 10 microns and the difference in protrusion distance between the highest 10 protruding tips of the monolayer of superabrasive particles are within about 20 microns or less. The method can further include rotating the dresser against the CMP pad such that asperities are cut into the CMP pad having a maximum cutting depth of about 60 microns.
摘要:
A CMP pad conditioner comprises a plurality of abrasive segments. Each abrasive segment includes a segment blank and an abrasive layer attached to the segment blank, the abrasive layer including a superhard abrasive material. A pad conditioner substrate is also provided. Each of the plurality of abrasive segments is permanently affixed to the pad conditioner substrate in an orientation that enables removal of material from a CMP pad by the abrasive layer as the pad conditioner and the CMP pad are moved relative to one another.
摘要:
Graphene layers made of primarily sp2 bonded atoms and associated methods are disclosed. In one aspect, for example, a method of forming a graphite film can include heating a solid substrate under vacuum to a solubilizing temperature that is less than a melting point of the solid substrate, solubilizing carbon atoms from a graphite source into the heated solid substrate, and cooling the heated solid substrate at a rate sufficient to form a graphite film from the solubilized carbon atoms on at least one surface of the solid substrate. The graphite film is formed to be substantially free of lattice defects.
摘要:
The present invention (utility model application in Taiwan) relates to a chemical mechanical polishing pad dresser, comprising: a substrate; a bonding layer disposed on the substrate; an electroplating layer disposed on the bonding layer; a fixed template disposed on the electroplating layer having a plurality of apertures; and a plurality of abrasive particles corresponding to and set in the apertures, wherein the plurality of abrasive particle fixed in the bonding layer and the substrate by means of the electroplating layer. Therefore, the present invention is not only to avoid damaging the abrasive particles due to the high temperature heating in the production process, but also to solve the corrosion problem of the surface of the chemical mechanical polishing pad dresser by the fixed template and the electroplating layer and to solve simultaneously the pollution problem generating on the polished workpieces by using conventional brazing bonding layer; and, the present invention can also provide to adjust the abrasive particles arrangement and protrude rate through the fixed template, so as to enhance the grinding performance and quality of the chemical mechanical polishing pad dresser.
摘要:
Stress regulated semiconductor devices and associated methods are provided. In one aspect, for example, a stress regulated semiconductor device can include a semiconductor layer, a stress regulating interface layer including a carbon layer formed on the semiconductor layer, and a heat spreader coupled to the carbon layer opposite the semiconductor layer. The stress regulating interface layer is operable to reduce the coefficient of thermal expansion difference between the semiconductor layer and the heat spreader to less than or equal to about 10 ppm/° C.
摘要:
Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material.