{"product_id":"mf008100-semi-mf81-test-method-for-measuring-radial-resistivity-variation-on-silicon-wafers","title":"MF008100 - SEMI MF81 - Test Method for Measuring Radial Resistivity Variation on Silicon Wafers","description":"\u003cp dir=\"ltr\" align=\"justify\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp dir=\"ltr\" align=\"justify\"\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eThe radial resistivity variation of bulk semiconductor\nmaterial is an important materials acceptance requirement for semiconductor\ndevice fabrication and is also used for quality control purposes.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003co:p\u003e \u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eThe four-point probe method provides a test that requires\nlittle specimen preparation and that is nondestructive in that the wafer is\nleft intact. The method can be applied to wafers using the\nresistivity-measuring apparatus and procedures of SEMI MF84 if provisions are\nmade for making measurements at several sites on the wafer. Appropriate\ncorrection factors must be applied to compensate for effects of the wafer\ngeometry.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003co:p\u003e \u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eRadial resistivity variations are a function of the crystal\ngrowth process and dopant, in both characteristic shape and magnitude. Because\nno single sampling plan is adequate to characterize the resistivity variations\nof all crystal types or for all applications, four sampling plans are included\nin this test method.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eThis Test Method provides procedures for the determination\nof relative radial variation of resistivity of semiconductor wafers cut from\nsilicon single crystals grown either by the Czochralski or floating-zone\ntechnique.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003co:p\u003e \u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eThis Test Method provides procedures for using SEMI MF84\nfor the four-point probe measurement of radial resistivity variation.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003co:p\u003e \u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eThis Test Method yields a measure of the variation in\nresistivity between the center and selected outer regions of the specimen. The\namount of information obtained regarding the magnitude and form of the\nvariation in the intervening regions when using the four-point probe array\ndepends on the sampling plan chosen. The interpretation of the variations\nmeasured as radial variations may be in error if azimuthal variations on the\nwafer or axial variations along the crystal length are not negligible.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003co:p\u003e \u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eThis Test Method can be applied to single crystals of\nsilicon in circular wafer form, the thickness of which is less than one-half of\nthe average probe spacing, and the diameter of which is at least 15 mm (0.6 in.).\nMeasurements can be made on any specimen for which reliable resistivity\nmeasurements can be obtained. The resistivity measurement procedure of SEMI MF84\nhas been tested on specimens having resistivities between 0.0008 and 2000 Ω·cm\nfor p-type silicon and between 0.0008 and 6000 Ω·cm for n-type silicon.\nGeometrical correction factors required for these measurements are included for\nthe case of standard wafer diameters, and are available in tabulated form for\nother cases.\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003co:p\u003e \u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003cb\u003eReferenced SEMI Standards\u003c\/b\u003e (purchase separately)\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI M1 — Specification for Polished Single Crystal Silicon\nWafers\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI M59 — Terminology for Silicon Technology\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI MF84 — Test Method for Measuring Resistivity of\nSilicon Slices with a Collinear Four-Probe Array\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI MF2074 — Guide for Measuring Diameter of Silicon and\nOther Semiconductor Wafers\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003co:p\u003e \u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003e\u003cb\u003eRevision History\u003c\/b\u003e\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI MF81-1105 (Reapproved 1221)\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI MF81-1105 (Reapproved 0316)\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI MF81-1105 (Reapproved 0611)\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI MF81-1105 (technical revision)\u003co:p\u003e\u003c\/o:p\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style='font-size:10.0pt;line-height:107%;font-family:\n\"Arial\",sans-serif'\u003eSEMI MF81-01 (first SEMI publication)\u003c\/span\u003e\u003c\/p\u003e","brand":"semi.org","offers":[{"title":"SEMI MF81-1105 (Reapproved 1221) - Current","offer_id":40234308173891,"sku":"14800","price":31900.0,"currency_code":"JPY","in_stock":true},{"title":"SEMI MF81-1105 (Reapproved 0316) - Superseded","offer_id":40234308206659,"sku":"4969","price":31900.0,"currency_code":"JPY","in_stock":true},{"title":"SEMI MF81-1105 (Reapproved 0611) - Superseded","offer_id":40234308337731,"sku":"10000","price":31900.0,"currency_code":"JPY","in_stock":true},{"title":"SEMI MF81-1105 - Superseded","offer_id":40234308403267,"sku":"9999","price":31900.0,"currency_code":"JPY","in_stock":true},{"title":"SEMI MF81-01 - Superseded","offer_id":40234308468803,"sku":"9998","price":31900.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0567\/3402\/3747\/files\/MFVolume.png?v=1776702512","url":"https:\/\/store-dev2.semi.org\/en-jp\/products\/mf008100-semi-mf81-test-method-for-measuring-radial-resistivity-variation-on-silicon-wafers","provider":"SEMI Dev 2","version":"1.0","type":"link"}