Method for determining an endpoint and semiconductor wafer
A method for determining an endpoint during chemical-mechanical polishing of a semiconductor wafer (100, 200) is disclosed. The method comprises the steps of depositing on a first layer (106, 206) to be polished a second (sacrificial) layer (108, 208), the physical properties of the first layer (106...
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| creator | GLASHAUSER, WALTER HAGGART, DAVID |
| description | A method for determining an endpoint during chemical-mechanical polishing of a semiconductor wafer (100, 200) is disclosed. The method comprises the steps of depositing on a first layer (106, 206) to be polished a second (sacrificial) layer (108, 208), the physical properties of the first layer (106, 206) being different from the physical properties of the second layer (108, 208). After that, the wafer (100, 200) is polished by chemical-mechanical polishing. Due to the different physical properties of the layers, a variation of the physical properties can be detected, and an endpoint can be determined on the basis of the detected variation. Further, a semiconductor wafer for use in a chemical-mechanical polishing process is disclosed. |
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The method comprises the steps of depositing on a first layer (106, 206) to be polished a second (sacrificial) layer (108, 208), the physical properties of the first layer (106, 206) being different from the physical properties of the second layer (108, 208). After that, the wafer (100, 200) is polished by chemical-mechanical polishing. Due to the different physical properties of the layers, a variation of the physical properties can be detected, and an endpoint can be determined on the basis of the detected variation. Further, a semiconductor wafer for use in a chemical-mechanical polishing process is disclosed.</description><edition>7</edition><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; DRESSING OR CONDITIONING OF ABRADING SURFACES ; 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 ; PERFORMING OPERATIONS ; POLISHING ; SEMICONDUCTOR DEVICES ; TRANSPORTING</subject><creationdate>2005</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=20050501&DB=EPODOC&CC=TW&NR=I231958B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050501&DB=EPODOC&CC=TW&NR=I231958B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GLASHAUSER, WALTER</creatorcontrib><creatorcontrib>HAGGART, DAVID</creatorcontrib><title>Method for determining an endpoint and semiconductor wafer</title><description>A method for determining an endpoint during chemical-mechanical polishing of a semiconductor wafer (100, 200) is disclosed. The method comprises the steps of depositing on a first layer (106, 206) to be polished a second (sacrificial) layer (108, 208), the physical properties of the first layer (106, 206) being different from the physical properties of the second layer (108, 208). After that, the wafer (100, 200) is polished by chemical-mechanical polishing. Due to the different physical properties of the layers, a variation of the physical properties can be detected, and an endpoint can be determined on the basis of the detected variation. Further, a semiconductor wafer for use in a chemical-mechanical polishing process is disclosed.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>DRESSING OR CONDITIONING OF ABRADING SURFACES</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>PERFORMING OPERATIONS</subject><subject>POLISHING</subject><subject>SEMICONDUCTOR DEVICES</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2005</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDyTS3JyE9RSMsvUkhJLUktys3My8xLV0jMU0jNSynIz8wrAbJTFIpTczOT8_NSSpNLgCrLE9NSi3gYWNMSc4pTeaE0N4OCm2uIs4duakF-fGpxQWJyal5qSXxIuKeRsaGlqYWTkzERSgA38S9Y</recordid><startdate>20050501</startdate><enddate>20050501</enddate><creator>GLASHAUSER, WALTER</creator><creator>HAGGART, DAVID</creator><scope>EVB</scope></search><sort><creationdate>20050501</creationdate><title>Method for determining an endpoint and semiconductor wafer</title><author>GLASHAUSER, WALTER ; HAGGART, DAVID</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_TWI231958BB3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2005</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>DRESSING OR CONDITIONING OF ABRADING SURFACES</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>PERFORMING OPERATIONS</topic><topic>POLISHING</topic><topic>SEMICONDUCTOR DEVICES</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>GLASHAUSER, WALTER</creatorcontrib><creatorcontrib>HAGGART, DAVID</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GLASHAUSER, WALTER</au><au>HAGGART, DAVID</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for determining an endpoint and semiconductor wafer</title><date>2005-05-01</date><risdate>2005</risdate><abstract>A method for determining an endpoint during chemical-mechanical polishing of a semiconductor wafer (100, 200) is disclosed. The method comprises the steps of depositing on a first layer (106, 206) to be polished a second (sacrificial) layer (108, 208), the physical properties of the first layer (106, 206) being different from the physical properties of the second layer (108, 208). After that, the wafer (100, 200) is polished by chemical-mechanical polishing. Due to the different physical properties of the layers, a variation of the physical properties can be detected, and an endpoint can be determined on the basis of the detected variation. Further, a semiconductor wafer for use in a chemical-mechanical polishing process is disclosed.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS DRESSING OR CONDITIONING OF ABRADING SURFACES 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 PERFORMING OPERATIONS POLISHING SEMICONDUCTOR DEVICES TRANSPORTING |
| title | Method for determining an endpoint and semiconductor wafer |
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