METHOD FOR RECLAIMING SEMICONDUCTOR WAFER AND POLISHING COMPOSITION
Provided is a polishing composition used for polishing a semiconductor wafer surface having a step in order to planarize the wafer surface and thereby reclaiming the semiconductor wafer. The polishing composition contains at least a step eliminating agent, which is adsorbed to the surface of the sem...
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| creator | ASAI MAIKO MORINAGA HITOSHI |
| description | Provided is a polishing composition used for polishing a semiconductor wafer surface having a step in order to planarize the wafer surface and thereby reclaiming the semiconductor wafer. The polishing composition contains at least a step eliminating agent, which is adsorbed to the surface of the semiconductor wafer and acts to prevent etching of bottom portion of the step on the wafer surface during polishing. The step eliminating agent is, for example, a water-soluble polymer or a surfactant, and more specifically, a polyvinyl alcohol, a polyvinyl pyrrolidone, a polyethylene glycol, a cellulose, a carboxylic acid surfactant, a sulfonic acid surfactant, a phosphate ester surfactant, or an oxyalkylene polymer. |
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The polishing composition contains at least a step eliminating agent, which is adsorbed to the surface of the semiconductor wafer and acts to prevent etching of bottom portion of the step on the wafer surface during polishing. The step eliminating agent is, for example, a water-soluble polymer or a surfactant, and more specifically, a polyvinyl alcohol, a polyvinyl pyrrolidone, a polyethylene glycol, a cellulose, a carboxylic acid surfactant, a sulfonic acid surfactant, a phosphate ester surfactant, or an oxyalkylene polymer.</description><language>eng</language><subject>ADHESIVES ; BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; DRESSING OR CONDITIONING OF ABRADING SURFACES ; DYES ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS ; GRINDING ; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; PAINTS ; PERFORMING OPERATIONS ; POLISHES ; POLISHING ; SEMICONDUCTOR DEVICES ; TRANSPORTING</subject><creationdate>2012</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20121122&DB=EPODOC&CC=US&NR=2012295443A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20121122&DB=EPODOC&CC=US&NR=2012295443A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ASAI MAIKO</creatorcontrib><creatorcontrib>MORINAGA HITOSHI</creatorcontrib><title>METHOD FOR RECLAIMING SEMICONDUCTOR WAFER AND POLISHING COMPOSITION</title><description>Provided is a polishing composition used for polishing a semiconductor wafer surface having a step in order to planarize the wafer surface and thereby reclaiming the semiconductor wafer. The polishing composition contains at least a step eliminating agent, which is adsorbed to the surface of the semiconductor wafer and acts to prevent etching of bottom portion of the step on the wafer surface during polishing. The step eliminating agent is, for example, a water-soluble polymer or a surfactant, and more specifically, a polyvinyl alcohol, a polyvinyl pyrrolidone, a polyethylene glycol, a cellulose, a carboxylic acid surfactant, a sulfonic acid surfactant, a phosphate ester surfactant, or an oxyalkylene polymer.</description><subject>ADHESIVES</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>DRESSING OR CONDITIONING OF ABRADING SURFACES</subject><subject>DYES</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS</subject><subject>GRINDING</subject><subject>MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>PAINTS</subject><subject>PERFORMING OPERATIONS</subject><subject>POLISHES</subject><subject>POLISHING</subject><subject>SEMICONDUCTOR DEVICES</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHD2dQ3x8HdRcPMPUghydfZx9PT19HNXCHb19XT293MJdQ4BSoQ7urkGKTj6uSgE-Pt4BnuAVDj7-wb4B3uGePr78TCwpiXmFKfyQmluBmU31xBnD93Ugvz41OKCxOTUvNSS-NBgIwNDIyNLUxMTY0dDY-JUAQDyLiyp</recordid><startdate>20121122</startdate><enddate>20121122</enddate><creator>ASAI MAIKO</creator><creator>MORINAGA HITOSHI</creator><scope>EVB</scope></search><sort><creationdate>20121122</creationdate><title>METHOD FOR RECLAIMING SEMICONDUCTOR WAFER AND POLISHING COMPOSITION</title><author>ASAI MAIKO ; MORINAGA HITOSHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2012295443A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2012</creationdate><topic>ADHESIVES</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>DRESSING OR CONDITIONING OF ABRADING SURFACES</topic><topic>DYES</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS</topic><topic>GRINDING</topic><topic>MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING</topic><topic>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>PAINTS</topic><topic>PERFORMING OPERATIONS</topic><topic>POLISHES</topic><topic>POLISHING</topic><topic>SEMICONDUCTOR DEVICES</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>ASAI MAIKO</creatorcontrib><creatorcontrib>MORINAGA HITOSHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ASAI MAIKO</au><au>MORINAGA HITOSHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR RECLAIMING SEMICONDUCTOR WAFER AND POLISHING COMPOSITION</title><date>2012-11-22</date><risdate>2012</risdate><abstract>Provided is a polishing composition used for polishing a semiconductor wafer surface having a step in order to planarize the wafer surface and thereby reclaiming the semiconductor wafer. The polishing composition contains at least a step eliminating agent, which is adsorbed to the surface of the semiconductor wafer and acts to prevent etching of bottom portion of the step on the wafer surface during polishing. The step eliminating agent is, for example, a water-soluble polymer or a surfactant, and more specifically, a polyvinyl alcohol, a polyvinyl pyrrolidone, a polyethylene glycol, a cellulose, a carboxylic acid surfactant, a sulfonic acid surfactant, a phosphate ester surfactant, or an oxyalkylene polymer.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DRESSING OR CONDITIONING OF ABRADING SURFACES DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES POLISHING SEMICONDUCTOR DEVICES TRANSPORTING |
| title | METHOD FOR RECLAIMING SEMICONDUCTOR WAFER AND POLISHING COMPOSITION |
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