{"id":8355,"date":"2024-05-08T21:16:39","date_gmt":"2024-05-09T01:16:39","guid":{"rendered":"https:\/\/www.semiconsoft.com\/wp2\/?page_id=8355"},"modified":"2024-05-08T21:16:40","modified_gmt":"2024-05-09T01:16:40","slug":"oxide-thickness-and-dispersion-measurement","status":"publish","type":"page","link":"https:\/\/www.semiconsoft.com\/wp2\/oxide-thickness-and-dispersion-measurement\/","title":{"rendered":"Oxide: Thickness and Dispersion Measurement"},"content":{"rendered":"<div  class=\"tatsu-BJvsstKzA tatsu-section  tatsu-bg-overlay   tatsu-clearfix\" data-title=\"\"  data-headerscheme=\"background--dark\"><div class='tatsu-section-pad clearfix' data-padding='{\"d\":\"10px 0px 20px 0px\"}' data-padding-top='10px'><div class=\"tatsu-row-wrap  tatsu-wrap tatsu-row-one-col tatsu-row-has-one-cols tatsu-medium-gutter tatsu-reg-cols  tatsu-clearfix tatsu-BJlPsitFGR\" ><div  class=\"tatsu-row \" ><div  class=\"tatsu-column  tatsu-bg-overlay tatsu-one-col tatsu-column-image-none tatsu-column-effect-none  tatsu-Hk-wjiYKz0\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-module tatsu-inline-text clearfix tatsu-HkGPjjKFfR   \" ><style>.tatsu-HkGPjjKFfR .tatsu-inline-text-inner{width: 100%;text-align: center;background-color: rgba(74,144,226,1);padding: 10px 0px 10px 0px;}.tatsu-HkGPjjKFfR.tatsu-inline-text{margin: 50px 0px 30px 0px;}.tatsu-HkGPjjKFfR.tatsu-inline-text .tatsu-inline-text-inner *{font-family : Arial, Helvetica, sans-serif;font-weight : 700;font-size : 33px;}@media only screen and (max-width: 767px) {.tatsu-HkGPjjKFfR .tatsu-inline-text-inner{width: 100%;}}<\/style><div class=\"tatsu-inline-text-inner tatsu-align-center\">\n<p><span class=\"swatch-white\">APPLICATION: THICKNESS AND DISPERSION\u00a0 OF OXIDE<\/span>\u00a0\u00a0<\/p>\n<\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-column-overlay tatsu-animate-none\" ><\/div><\/div><style>.tatsu-row > .tatsu-Hk-wjiYKz0.tatsu-column{width: 100%;}.tatsu-Hk-wjiYKz0.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: normal;}.tatsu-Hk-wjiYKz0 > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-Hk-wjiYKz0 > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-Hk-wjiYKz0 > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-Hk-wjiYKz0 > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-Hk-wjiYKz0.tatsu-column{width: 100%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-Hk-wjiYKz0.tatsu-column{width: 100%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-Hk-wjiYKz0.tatsu-column{width: 100%;}}<\/style><\/div><\/div><\/div><\/div><div class=\"tatsu-section-background-wrap\"><div class = \"tatsu-section-background tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-section-overlay\"><\/div><style>.tatsu-BJvsstKzA .tatsu-section-pad{padding: 10px 0px 20px 0px;}.tatsu-BJvsstKzA .tatsu-section-offset-wrap{transform: translateY(-0px);}.tatsu-BJvsstKzA > .tatsu-bottom-divider{z-index: 9999;}.tatsu-BJvsstKzA > .tatsu-top-divider{z-index: 9999;}.tatsu-BJvsstKzA .tatsu-section-overlay{mix-blend-mode: normal;}<\/style><\/div><div  class=\"tatsu-rkXDoiFYzR tatsu-section    tatsu-clearfix\" data-title=\"\"  data-headerscheme=\"background--dark\"><div class='tatsu-section-pad clearfix' data-padding='{\"d\":\"4px 0px 0px 0px\"}' data-padding-top='4px'><div class=\"tatsu-row-wrap  tatsu-wrap tatsu-row-has-one-half tatsu-row-has-two-cols tatsu-medium-gutter tatsu-reg-cols  tatsu-clearfix tatsu-Hk4DoottMA\" ><div  class=\"tatsu-row \" ><div  class=\"tatsu-column  tatsu-column-no-bg tatsu-one-half tatsu-column-align-middle tatsu-column-image-none tatsu-column-effect-none  tatsu-rJSvsiYYG0\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-single-image tatsu-module align-center be-shadow-light tatsu-image-lazyload tatsu-rJLPjjFtf0  \" ><div class=\"tatsu-single-image-inner \" style=\"width : 450px;\" ><div class = \"tatsu-single-image-padding-wrap\" style = \"padding-bottom : 41.333333333333%;\" ><\/div><a class = \"mfp-image\" href = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Oxide_only_thickness.jpg\" ><img class = \"tatsu-gradient-border\" alt = \"Measurement of oxide thickness without dispersion\" title = \"Oxide_only_thickness\" data-srcset = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Oxide_only_thickness.jpg 450w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Oxide_only_thickness-300x124.jpg 300w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Oxide_only_thickness-121x50.jpg 121w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Oxide_only_thickness-50x21.jpg 50w\" sizes = \"(max-width: 450px) 100vw, 450px\" src =\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=\"  \/><\/a><\/div><style>.tatsu-rJLPjjFtf0{margin: 0px 0px 0px 0px;}.tatsu-rJLPjjFtf0 .tatsu-single-image-inner{border-style: solid;max-width: 100%;}.tatsu-rJLPjjFtf0.tatsu-single-image{transform: translate3d(0px,0px, 0);}<\/style><\/div><div  class=\"tatsu-module tatsu-inline-text clearfix tatsu-HkPvjiFFfR   \" ><style>.tatsu-HkPvjiFFfR .tatsu-inline-text-inner{width: 100%;text-align: left;}@media only screen and (max-width: 767px) {.tatsu-HkPvjiFFfR .tatsu-inline-text-inner{width: 100%;}}<\/style><div class=\"tatsu-inline-text-inner tatsu-align-center\">\n<p>Step1. Fit the measurement using SiO2 dispersion<\/p>\n<\/div><\/div><div  class=\"tatsu-single-image tatsu-module tatsu-image-lazyload tatsu-Hk_vjjKFGA  \" ><div class=\"tatsu-single-image-inner \" style=\"width : 450px;\" ><div class = \"tatsu-single-image-padding-wrap\" style = \"padding-bottom : 41.333333333333%;\" ><\/div><img class = \"tatsu-gradient-border\" alt = \"Measurement of thickness and dispersion of the oxide\" title = \"Oxide- T and N measurement\" data-src = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Oxide_fit_TN.jpg\" src =\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=\"  \/><\/div><style>.tatsu-Hk_vjjKFGA .tatsu-single-image-inner{border-style: solid;max-width: 100%;}.tatsu-Hk_vjjKFGA.tatsu-single-image{transform: translate3d(0px,0px, 0);}<\/style><\/div><div  class=\"tatsu-module tatsu-inline-text clearfix tatsu-H1YwojYYzC   \" ><style>.tatsu-H1YwojYYzC .tatsu-inline-text-inner{width: 100%;text-align: left;}@media only screen and (max-width: 767px) {.tatsu-H1YwojYYzC .tatsu-inline-text-inner{width: 100%;}}<\/style><div class=\"tatsu-inline-text-inner tatsu-align-center\">\n<p>Steps 2\/3. Measuring the thickness and dispersion of the oxide\u00a0<\/p>\n<\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><\/div><style>.tatsu-row > .tatsu-rJSvsiYYG0.tatsu-column{width: 29.9%;}.tatsu-rJSvsiYYG0.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: none;}.tatsu-rJSvsiYYG0 > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-rJSvsiYYG0 > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-rJSvsiYYG0 > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-rJSvsiYYG0 > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-rJSvsiYYG0.tatsu-column{width: 100%;}}<\/style><\/div><div  class=\"tatsu-column  tatsu-column-no-bg tatsu-one-half tatsu-column-align-middle tatsu-column-image-none tatsu-column-effect-none  tatsu-B19woitYGA\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-module tatsu-inline-text clearfix tatsu-rJSk3YFzR   \" ><style>.tatsu-rJSk3YFzR .tatsu-inline-text-inner{width: 100%;text-align: left;}@media only screen and (max-width: 767px) {.tatsu-rJSk3YFzR .tatsu-inline-text-inner{width: 100%;}}<\/style><div class=\"tatsu-inline-text-inner tatsu-align-center\">\n<p>Measurement of the thickness and dispersion of the oxide is a common application because the optical properties depend on the deposition condition. Measurement of the Si oxide with the known dispersion, like thermal Si dioxide, is one of the basic and most simple applications. However, there are many types and stoichiometries of Si oxide and they can have a different dispersions. In this case, it is important to measure the thickness and dispersion together. SiOx is a good example to illustrate the approach to this measurement. In this example, we use&nbsp; Si oxide sample step-etched to different thticknesses.&nbsp;<\/p>\n<ol>\n<li>Use the filmstack model with the standard SiO2 and check if the good fit to the measured data can be achieved (One can never achieve a good fit if the dispersion does not match)<\/li>\n<li>Use Cauchy representation of the SiO2 dispersion and let both the thickness and Cauchy coefficients set as calculation parameters. (Note. the best results select the thicker available film. Thicknesses above 400nm are preferred)<\/li>\n<li>Add the &#8220;scale&#8221; as a calculation parameter and recalculate again. Scale is correcting for the difference in light intensity between calibratiojn and measurement configuration. This difference will be very small with correct setting but when measuring dispersion it is helpful to have more accurate results.<\/li>\n<li>Now, when we have a good fit, the dipersion can be fixed. Other, thinner samples, can be measuremed using dispersion determined from the first measurment. In this case, only thickness and scale parameters will be measured.<\/li>\n<li>How do we know that the correct dispersion was measured? The practical test is to show that the same dispersion give good fit to the measured data for both thick and thin films.&nbsp;<\/li>\n<\/ol>\n<\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><\/div><style>.tatsu-row > .tatsu-B19woitYGA.tatsu-column{width: 70.1%;}.tatsu-B19woitYGA.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: none;}.tatsu-B19woitYGA > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-B19woitYGA > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-B19woitYGA > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-B19woitYGA > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-B19woitYGA.tatsu-column{width: 100%;}}<\/style><\/div><\/div><\/div><\/div><div class=\"tatsu-section-background-wrap\"><div class = \"tatsu-section-background tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><style>.tatsu-rkXDoiFYzR.tatsu-section{background-color: rgba(255,255,255,1);}.tatsu-rkXDoiFYzR .tatsu-section-pad{padding: 4px 0px 0px 0px;}.tatsu-rkXDoiFYzR > .tatsu-bottom-divider{z-index: 9999;}.tatsu-rkXDoiFYzR > .tatsu-top-divider{z-index: 9999;}<\/style><\/div><div  class=\"tatsu-Hk3PiiFYGR tatsu-section    tatsu-clearfix\" data-title=\"\"  data-headerscheme=\"background--dark\"><div class='tatsu-section-pad clearfix' data-padding='{\"d\":\"7px 0px 43px 0px\"}' data-padding-top='7px'><div class=\"tatsu-row-wrap  tatsu-wrap tatsu-row-has-three-cols tatsu-medium-gutter tatsu-reg-cols  tatsu-clearfix tatsu-BJTDjstYzR\" ><div  class=\"tatsu-row \" ><div  class=\"tatsu-column  tatsu-column-no-bg tatsu-one-third tatsu-column-align-middle tatsu-column-image-none tatsu-column-effect-none  tatsu-rkCDsoFtfR\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-module tatsu-inline-text clearfix tatsu-HyXeG9YGA   \" ><style>.tatsu-HyXeG9YGA .tatsu-inline-text-inner{width: 100%;text-align: left;}@media only screen and (max-width: 767px) {.tatsu-HyXeG9YGA .tatsu-inline-text-inner{width: 100%;}}<\/style><div class=\"tatsu-inline-text-inner tatsu-align-center\">\n<p><strong>Why\u00a0 use MProbe 40 Vis system?<\/strong><\/p>\n<ol>\n<li><span style=\"font-size: 17px; letter-spacing: 0px;\">\u00a0Small spot measurement<\/span><\/li>\n<li><span style=\"font-size: 17px; letter-spacing: 0px;\">Live camera image of the sample with reticle indicating the measurement position helps selecting the exact location<\/span><\/li>\n<li><span style=\"font-size: 17px; letter-spacing: 0px;\">Different objectives can be selected based on the spot size requirements<\/span><\/li>\n<li><span style=\"font-size: 17px; letter-spacing: 0px;\">MProbe 40 Vis has the same performance as MProbe 20 Vis &#8211; only with the small spot measurement capability\u00a0<\/span><\/li>\n<\/ol>\n<p>\u00a0<\/p>\n<\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><\/div><style>.tatsu-row > .tatsu-rkCDsoFtfR.tatsu-column{width: 33.33%;}.tatsu-rkCDsoFtfR.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: none;}.tatsu-rkCDsoFtfR > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-rkCDsoFtfR > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-rkCDsoFtfR > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-rkCDsoFtfR > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-rkCDsoFtfR.tatsu-column{width: 33.33%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-rkCDsoFtfR.tatsu-column{width: 33.33%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-rkCDsoFtfR.tatsu-column{width: 100%;}}<\/style><\/div><div  class=\"tatsu-column  tatsu-column-no-bg tatsu-one-third tatsu-column-align-middle tatsu-column-image-none tatsu-column-effect-none  tatsu-SyxgvsoFKM0\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div class=\"tatsu-row-wrap  tatsu-row-one-col tatsu-row-has-one-cols tatsu-zero-margin tatsu-medium-gutter tatsu-reg-cols tatsu-inner-row-wrap  tatsu-clearfix tatsu-HJGxwiiFYGR\" ><div  class=\"tatsu-row \" ><div  class=\"tatsu-column  tatsu-bg-overlay tatsu-one-col tatsu-column-align-bottom tatsu-column-image- tatsu-column-effect-  tatsu-SkmlwojtKzA\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-single-image tatsu-module tatsu-image-lazyload tatsu-BkuLhqFzA  \" ><div class=\"tatsu-single-image-inner \" style=\"width : 450px;\" ><div class = \"tatsu-single-image-padding-wrap\" style = \"padding-bottom : 72.444444444444%;\" ><\/div><a class = \"mfp-image\" href = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Disperion_Comparison.jpg\" ><img class = \"tatsu-gradient-border\" alt = \"Dispersion comparison: thermal oxide vs. measured dispersion\" title = \"Dispersion Comparison\" data-srcset = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Disperion_Comparison.jpg 450w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Disperion_Comparison-300x217.jpg 300w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Disperion_Comparison-69x50.jpg 69w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/Disperion_Comparison-50x36.jpg 50w\" sizes = \"(max-width: 450px) 100vw, 450px\" src =\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=\"  \/><\/a><\/div><style>.tatsu-BkuLhqFzA .tatsu-single-image-inner{border-style: solid;max-width: 100%;}.tatsu-BkuLhqFzA.tatsu-single-image{transform: translate3d(0px,0px, 0);}<\/style><\/div><div  class=\"tatsu-module tatsu-inline-text clearfix tatsu-ByNlDisKtzR   \" ><style>.tatsu-ByNlDisKtzR .tatsu-inline-text-inner{width: 100%;text-align: left;}@media only screen and (max-width: 767px) {.tatsu-ByNlDisKtzR .tatsu-inline-text-inner{width: 100%;}}<\/style><div class=\"tatsu-inline-text-inner tatsu-align-center\">\n<p style=\"text-align: left;\"><span class=\"swatch-black\"><strong>Step 3<\/strong>&nbsp; Dispersion comparison: thermal oxide vs. measured dispersion. Measured refractive index is much higher as compared to the thermal oxide<\/span><\/p>\n<\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-column-overlay tatsu-animate-none\" ><\/div><\/div><style>.tatsu-row > .tatsu-SkmlwojtKzA.tatsu-column{width: 77.05%;}.tatsu-SkmlwojtKzA.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: normal;}.tatsu-SkmlwojtKzA > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-SkmlwojtKzA > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-SkmlwojtKzA > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-SkmlwojtKzA > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-SkmlwojtKzA.tatsu-column{width: 100%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-SkmlwojtKzA.tatsu-column{width: 100%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-SkmlwojtKzA.tatsu-column{width: 100%;}}<\/style><\/div><\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><\/div><style>.tatsu-row > .tatsu-SyxgvsoFKM0.tatsu-column{width: 33.33%;}.tatsu-SyxgvsoFKM0.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: none;}.tatsu-SyxgvsoFKM0 > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-SyxgvsoFKM0 > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-SyxgvsoFKM0 > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-SyxgvsoFKM0 > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-SyxgvsoFKM0.tatsu-column{width: 33.33%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-SyxgvsoFKM0.tatsu-column{width: 33.33%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-SyxgvsoFKM0.tatsu-column{width: 100%;}}<\/style><\/div><div  class=\"tatsu-column  tatsu-bg-overlay tatsu-one-third tatsu-column-image-none tatsu-column-effect-none  tatsu-HkZlBp9FGR\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div class=\"tatsu-row-wrap  tatsu-row-one-col tatsu-row-has-one-cols tatsu-medium-gutter tatsu-reg-cols tatsu-inner-row-wrap  tatsu-clearfix tatsu-rkl-yloFGC\" ><div  class=\"tatsu-row \" ><div  class=\"tatsu-column  tatsu-bg-overlay tatsu-one-col tatsu-column-image- tatsu-column-effect-  tatsu-BkZkestG0\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-single-image tatsu-module tatsu-image-lazyload tatsu-ryQxestzR  \" ><div class=\"tatsu-single-image-inner \" style=\"width : 450px;\" ><div class = \"tatsu-single-image-padding-wrap\" style = \"padding-bottom : 48%;\" ><\/div><a class = \"mfp-image\" href = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/ThinFilm.jpg\" ><img class = \"tatsu-gradient-border\" alt = \"Thin film fit: model to measured data\" title = \"Thin Film fit\" data-srcset = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/ThinFilm.jpg 450w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/ThinFilm-300x144.jpg 300w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/ThinFilm-104x50.jpg 104w, https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2024\/05\/ThinFilm-50x24.jpg 50w\" sizes = \"(max-width: 450px) 100vw, 450px\" src =\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=\"  \/><\/a><\/div><style>.tatsu-ryQxestzR .tatsu-single-image-inner{border-style: solid;max-width: 100%;}.tatsu-ryQxestzR.tatsu-single-image{transform: translate3d(0px,0px, 0);}<\/style><\/div><div  class=\"tatsu-module tatsu-inline-text clearfix tatsu-BJZZeotfA   \" ><style>.tatsu-BJZZeotfA .tatsu-inline-text-inner{width: 100%;text-align: left;}@media only screen and (max-width: 767px) {.tatsu-BJZZeotfA .tatsu-inline-text-inner{width: 100%;}}<\/style><div class=\"tatsu-inline-text-inner tatsu-align-center\">\n<p><strong>Step 4\/ 5<\/strong>. Fit of the model to measured data for the thin film (onle thickness is measured). The fit looks good &#8211; this is an indication that dispersion determined using thick film is correct.<\/p>\n<\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-column-overlay tatsu-animate-none\" ><\/div><\/div><style>.tatsu-row > .tatsu-BkZkestG0.tatsu-column{width: 100%;}.tatsu-BkZkestG0.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: normal;}.tatsu-BkZkestG0 > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-BkZkestG0 > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-BkZkestG0 > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-BkZkestG0 > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-BkZkestG0.tatsu-column{width: 100%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-BkZkestG0.tatsu-column{width: 100%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-BkZkestG0.tatsu-column{width: 100%;}}<\/style><\/div><\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-column-overlay tatsu-animate-none\" ><\/div><\/div><style>.tatsu-row > .tatsu-HkZlBp9FGR.tatsu-column{width: 33.33%;}.tatsu-HkZlBp9FGR.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: normal;}.tatsu-HkZlBp9FGR > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-HkZlBp9FGR > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-HkZlBp9FGR > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-HkZlBp9FGR > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-HkZlBp9FGR.tatsu-column{width: 33.33%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-HkZlBp9FGR.tatsu-column{width: 33.33%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-HkZlBp9FGR.tatsu-column{width: 100%;}}<\/style><\/div><\/div><\/div><\/div><div class=\"tatsu-section-background-wrap\"><div class = \"tatsu-section-background tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><style>.tatsu-Hk3PiiFYGR.tatsu-section{background-color: rgba(255,255,255,1);}.tatsu-Hk3PiiFYGR .tatsu-section-pad{padding: 7px 0px 43px 0px;}.tatsu-Hk3PiiFYGR > .tatsu-bottom-divider{z-index: 9999;}.tatsu-Hk3PiiFYGR > .tatsu-top-divider{z-index: 9999;}<\/style><\/div><div  class=\"tatsu-SJrgPsjFFfC tatsu-section  tatsu-bg-overlay   tatsu-clearfix\" data-title=\"\"  data-headerscheme=\"background--dark\"><div class='tatsu-section-pad clearfix' data-padding='{\"d\":\"0px 0px 0px 0px\"}' data-padding-top='0px'><div class=\"tatsu-row-wrap  tatsu-wrap tatsu-row-has-one-half tatsu-row-has-two-cols tatsu-medium-gutter tatsu-reg-cols  tatsu-clearfix tatsu-H1LxwijFtMC\" ><div  class=\"tatsu-row \" ><div  class=\"tatsu-column  tatsu-bg-overlay tatsu-one-half tatsu-column-image-none tatsu-column-effect-none  tatsu-SJDlDsoFKGA\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-single-image tatsu-module tatsu-image-lazyload tatsu-ByuxvootFG0  \" ><div class=\"tatsu-single-image-inner \" style=\"width : 596px;\" ><div class = \"tatsu-single-image-padding-wrap\" style = \"padding-bottom : 125.3355704698%;\" ><\/div><a href = \"https:\/\/www.semiconsoft.com\/wp2\/mprobe40\/\" ><img class = \"tatsu-gradient-border\" alt = \"MProbe 40 :Film thickness measurement in small spot\" title = \"MProbe 40 system\" data-src = \"https:\/\/www.semiconsoft.com\/wp2\/wp-content\/uploads\/2020\/02\/MSP_Front-View2019.png\" src =\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=\"  \/><\/a><\/div><style>.tatsu-ByuxvootFG0 .tatsu-single-image-inner{border-style: solid;max-width: 100%;}.tatsu-ByuxvootFG0.tatsu-single-image{transform: translate3d(0px,0px, 0);}<\/style><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-column-overlay tatsu-animate-none\" ><\/div><\/div><style>.tatsu-row > .tatsu-SJDlDsoFKGA.tatsu-column{width: 47.3%;}.tatsu-SJDlDsoFKGA.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: normal;}.tatsu-SJDlDsoFKGA > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-SJDlDsoFKGA > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-SJDlDsoFKGA > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-SJDlDsoFKGA > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-SJDlDsoFKGA.tatsu-column{width: 50%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-SJDlDsoFKGA.tatsu-column{width: 50%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-SJDlDsoFKGA.tatsu-column{width: 100%;}}<\/style><\/div><div  class=\"tatsu-column  tatsu-bg-overlay tatsu-one-half tatsu-column-image-none tatsu-column-effect-none  tatsu-BJYgwisttMR\"  data-parallax-speed=\"0\" style=\"\"><div class=\"tatsu-column-inner \" ><div class=\"tatsu-column-pad-wrap\"><div class=\"tatsu-column-pad\" ><div  class=\"tatsu-module tatsu-normal-button tatsu-button-wrap   tatsu-r1sxwjsYYM0   \"><a class=\"tatsu-shortcode mediumbtn tatsu-button left-icon circular   bg-animation-none  \" href=\"https:\/\/www.semiconsoft.com\/wp2\/mprobe40\/\" style= \"\"  aria-label=\"Read more about MProbe MSP\" data-gdpr-atts={} >Read more about MProbe MSP<\/a><style>.tatsu-r1sxwjsYYM0 .tatsu-button{background-color: rgba(34,147,215,1);color: #ffffff ;}<\/style><\/div><div  class=\"tatsu-module tatsu-text-block-wrap tatsu-B1DmScFzA  \"><div class=\"tatsu-text-inner tatsu-align-center  clearfix\" ><style>.tatsu-B1DmScFzA.tatsu-text-block-wrap .tatsu-text-inner{width: 100%;text-align: left;}<\/style>\n<p>BASIC SPECIFICATION (MProbe Vis 40):<br \/>Wavelength range: 400-1000nm<br \/>Wavelength resolution:<2 nm<br \/>Precision: <0.01nm or 0.01%<br \/>Accuracy: <1nm or 0.2%<br \/>Measurement:< 100ms (typical, depends on sample reflectivity and objective used)<\/p>\n<p>Thickness range: 10nm &#8211; 75\u03bcm<br \/>Spot size: 2 \u03bcm to 200\u03bcm<\/p>\n<\/div><\/div><\/div><\/div><div class = \"tatsu-column-bg-image-wrap\"><div class = \"tatsu-column-bg-image tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-column-overlay tatsu-animate-none\" ><\/div><\/div><style>.tatsu-row > .tatsu-BJYgwisttMR.tatsu-column{width: 52.7%;}.tatsu-BJYgwisttMR.tatsu-column > .tatsu-column-inner > .tatsu-column-overlay{mix-blend-mode: normal;}.tatsu-BJYgwisttMR > .tatsu-column-inner > .tatsu-top-divider{z-index: 9999;}.tatsu-BJYgwisttMR > .tatsu-column-inner > .tatsu-bottom-divider{z-index: 9999;}.tatsu-BJYgwisttMR > .tatsu-column-inner > .tatsu-left-divider{z-index: 9999;}.tatsu-BJYgwisttMR > .tatsu-column-inner > .tatsu-right-divider{z-index: 9999;}@media only screen and (max-width:1377px) {.tatsu-row > .tatsu-BJYgwisttMR.tatsu-column{width: 50%;}}@media only screen and (min-width:768px) and (max-width: 1024px) {.tatsu-row > .tatsu-BJYgwisttMR.tatsu-column{width: 50%;}}@media only screen and (max-width: 767px) {.tatsu-row > .tatsu-BJYgwisttMR.tatsu-column{width: 100%;}}<\/style><\/div><\/div><\/div><\/div><div class=\"tatsu-section-background-wrap\"><div class = \"tatsu-section-background tatsu-bg-lazyload\" data-src = \"\"><\/div><\/div><div class=\"tatsu-overlay tatsu-section-overlay\"><\/div><style>.tatsu-SJrgPsjFFfC .tatsu-section-offset-wrap{transform: translateY(-0px);}.tatsu-SJrgPsjFFfC > .tatsu-bottom-divider{z-index: 9999;}.tatsu-SJrgPsjFFfC > .tatsu-top-divider{z-index: 9999;}.tatsu-SJrgPsjFFfC .tatsu-section-overlay{mix-blend-mode: normal;}<\/style><\/div>\n","protected":false},"excerpt":{"rendered":"<p><a href=\"https:\/\/www.semiconsoft.com\/wp2\/oxide-thickness-and-dispersion-measurement\/\" class=\"exp-read-more exp-read-more-dots\">&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":8366,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-8355","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Oxide: Thickness and Dispersion Measurement - 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