{"id":749,"date":"2026-03-17T15:27:32","date_gmt":"2026-03-17T07:27:32","guid":{"rendered":"https:\/\/lighte.gongjionline.cn\/cus_case\/jing-yuan-hou-du-yu-ttv-gao-jing-du-ce-liang\/"},"modified":"2026-07-14T17:03:55","modified_gmt":"2026-07-14T09:03:55","slug":"wafer-thickness-ttv-measurement","status":"publish","type":"case","link":"https:\/\/www.lightegroup.com\/pt\/case\/wafer-thickness-ttv-measurement\/","title":{"rendered":"Medi\u00e7\u00e3o de alta precis\u00e3o da espessura e do TTV de wafers"},"content":{"rendered":"<p>No processo de fabrica\u00e7\u00e3o e afinamento de wafers, a espessura total do wafer e a TTV (Varia\u00e7\u00e3o Total de Espessura) s\u00e3o par\u00e2metros-chave que afetam o alinhamento da fotolitografia e o rendimento do empacotamento. A medi\u00e7\u00e3o por contato tradicional \u00e9 ineficiente e apresenta o risco de arranhar a superf\u00edcie do wafer. O LightE utiliza uma solu\u00e7\u00e3o de medi\u00e7\u00e3o \u00f3ptica sem contato para realizar varreduras de altura de alta precis\u00e3o na superf\u00edcie do wafer, permitindo a medi\u00e7\u00e3o est\u00e1vel da espessura do wafer e da TTV, garantindo a exatid\u00e3o das medi\u00e7\u00f5es enquanto evita danos ao wafer.<\/p>","protected":false},"featured_media":1313,"template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"High-precision measurement of wafer thickness and TTV - LightE Application","_seopress_titles_desc":"In the wafer manufacturing and thinning process, the overall thickness of the wafer and TTV (Total Thickness Variation) are key parameters that affect pho...","_seopress_robots_index":"","_seopress_analysis_target_kw":""},"class_list":["post-749","case","type-case","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.lightegroup.com\/pt\/wp-json\/wp\/v2\/case\/749","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lightegroup.com\/pt\/wp-json\/wp\/v2\/case"}],"about":[{"href":"https:\/\/www.lightegroup.com\/pt\/wp-json\/wp\/v2\/types\/case"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lightegroup.com\/pt\/wp-json\/wp\/v2\/media\/1313"}],"wp:attachment":[{"href":"https:\/\/www.lightegroup.com\/pt\/wp-json\/wp\/v2\/media?parent=749"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}