02-04-2020 дата публикации
Номер: US20200101657A1
Принадлежит:
A polishing article manufacturing system includes a feed section and a take-up section, the take-up section comprising a supply roll having a polishing article disposed thereon for a chemical mechanical polishing process, a print section comprising a plurality of printheads disposed between the feed section and the take-up section, and a curing section disposed between the feed section and the take-up section, the curing section comprising one or both of a thermal curing device and an electromagnetic curing device. 1. A polishing article , comprising: the base region is formed of a first material, and', 'the plurality of raised features comprise regions of the first material and regions of a second material, wherein the regions of the second material are at least partially surrounded by the first material., 'a unitary composite pad body formed of a plurality of printer deposited layers, the unitary pad body comprising a base region and a plurality of raised features extending from the base region to form a polishing surface, wherein'}2. The polishing article of claim 1 , wherein the second material has a hardness greater than a hardness of the first material.3. The polishing article of claim 2 , wherein the regions of the second material comprise discrete regions within a cross-linked polymer matrix of the first material and the second material which forms the unitary composite pad body.4. The polishing article of claim 3 , wherein the second material is formed of polyurethane claim 3 , acrylate claim 3 , epoxy claim 3 , acrylonitrile butadiene styrene (ABS) claim 3 , polyetherimide claim 3 , polyamides claim 3 , melamines claim 3 , polyesters claim 3 , polysulfones claim 3 , polyvinyl acetates claim 3 , fluorinated hydrocarbons claim 3 , or combinations thereof.5. The polishing article of claim 3 , wherein the regions of the second material have a hardness in a range from about 40 Shore D scale to about 90 Shore D scale.6. The polishing article of claim 3 , wherein ...
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