{"id":5184,"date":"2026-08-04T11:07:21","date_gmt":"2026-08-04T02:07:21","guid":{"rendered":"https:\/\/www.aem.imr.tohoku.ac.jp\/?page_id=5184"},"modified":"2026-08-04T15:03:50","modified_gmt":"2026-08-04T06:03:50","slug":"precision-dimple-grinder-gatan-model-656-3","status":"publish","type":"page","link":"https:\/\/www.aem.imr.tohoku.ac.jp\/en\/precision-dimple-grinder-gatan-model-656-3\/","title":{"rendered":"Precision Dimple Grinder Gatan Model 656-3"},"content":{"rendered":"<p><em>*Note: This page was translated by AI from the Japanese original. In case of any discrepancy, the Japanese version shall prevail.*<\/em><\/p>\n<div class=\"equipment-header\" style=\"text-align: center; margin-bottom: 2em;\">\n  <img decoding=\"async\" class=\"aligncenter size-medium\" src=\"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-content\/uploads\/2016\/11\/DSC_0527.jpg\" alt=\"Dimple Grinder Model 656 appearance\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.1);\" \/>\n<\/div>\n<h2 style=\"border-bottom: 2px solid #0056b3; padding-bottom: 6px; margin-top: 1.5em; color: #0056b3;\">Overview<\/h2>\n<div style=\"line-height: 1.8; font-size: 1.05em;\">\n<p>The Gatan <strong>Precision Dimple Grinder Model 656-3<\/strong> is a mechanical pre-polishing instrument designed to produce a spherical dimple in the center of \u03a63 mm TEM specimen discs prior to final ion beam milling.<\/p>\n<p>It significantly reduces final ion milling duration (e.g. PIPS) while maintaining a robust outer rim for specimen handling and yielding a central area thinned to a few micrometers without thermal or structural damage.<\/p>\n<\/div>\n<h2 style=\"border-bottom: 2px solid #0056b3; padding-bottom: 6px; margin-top: 1.5em; color: #0056b3;\">Features<\/h2>\n<ul style=\"line-height: 1.8; padding-left: 1.2em;\">\n<li style=\"margin-bottom: 0.8em;\"><strong>Precision Depth Control:<\/strong> Real-time digital depth indicator with automatic shut-off when the pre-selected dimple depth is reached.<\/li>\n<li style=\"margin-bottom: 0.8em;\"><strong>Adjustable Specimen Load:<\/strong> Precise load adjustment mechanism protects fragile semiconductors, single crystals, and composite materials from cracking.<\/li>\n<li style=\"margin-bottom: 0.8em;\"><strong>Versatile Grinding &#038; Polishing Wheels:<\/strong> Compatible with diamond grinding wheels for rapid material removal and felt\/bronze wheels with diamond paste for final mirror polishing.<\/li>\n<li style=\"margin-bottom: 0.8em;\"><strong>Transmitted Light Optical Inspection:<\/strong> Transmitted light illumination allows monitoring of specimen light transparency and fringe patterns to determine thickness.<\/li>\n<\/ul>\n<h2 style=\"border-bottom: 2px solid #0056b3; padding-bottom: 6px; margin-top: 1.5em; color: #0056b3;\">Specifications<\/h2>\n<div style=\"background-color: #fff9e6; border-left: 4px solid #ff9800; padding: 10px 14px; margin: 1em 0; border-radius: 4px; font-size: 0.95em; line-height: 1.6;\">\n  <strong style=\"color: #d97706;\">[Specification Notice]<\/strong><br \/>\n  Actual equipment configurations or specifications may differ from standard manual specifications. Please consult the equipment manager for details regarding current capabilities and conditions of use.\n<\/div>\n<table style=\"width: 100%; border-collapse: collapse; margin-top: 1em; font-size: 0.95em;\">\n<tbody>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Manufacturer<\/th>\n<td style=\"padding: 10px;\">Gatan, Inc.<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Model<\/th>\n<td style=\"padding: 10px;\">Model 656-3 (Precision Dimple Grinder)<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Specimen Size<\/th>\n<td style=\"padding: 10px;\">\u03a63 mm TEM specimen discs<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Polishing Controls<\/th>\n<td style=\"padding: 10px;\">Variable wheel speed and adjustable load arm<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Depth Measurement<\/th>\n<td style=\"padding: 10px;\">Digital micrometer indicator with auto-termination<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Wheel Options<\/th>\n<td style=\"padding: 10px;\">Diamond wheels (coarse) and felt\/bronze wheels (fine polish)<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Primary Purpose<\/th>\n<td style=\"padding: 10px;\">Spherical dimpling of TEM specimens prior to ion milling<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #e0e0e0;\">\n<th style=\"width: 28%; padding: 10px; background-color: #f8f9fa; text-align: left; font-weight: bold; border-right: 1px solid #e0e0e0;\">Location<\/th>\n<td style=\"padding: 10px;\">Room 1-105<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"border-bottom: 2px solid #0056b3; padding-bottom: 6px; margin-top: 1.5em; color: #0056b3;\">Manuals &#038; Guidelines<\/h2>\n<div style=\"background-color: #f0f7ff; border-left: 4px solid #0056b3; padding: 12px 16px; margin-top: 1em; border-radius: 4px; line-height: 1.7;\">\n<p style=\"margin: 0;\"><strong>[Manual (Campus Access Only)]<\/strong><br \/>&#x1f4c4; <a href=\"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-content\/uploads\/2026\/08\/Gatan_Dimple_Grinder_Model656_Manual.pdf\" class=\"mtli_attachment mtli_pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Gatan Precision Dimple Grinder Model 656-3 Owner&#8217;s Manual (PDF, campus access only)<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>*Note: This page was translated by AI from the Japanese original. In case of any discrepancy, the Japanese version shall prevail.* Overview The Gatan Precision Dimple Grinder Model 656-3 is a mechanical pre-polishing instrument designed to produce a spherical dimple in the center of \u03a63 mm TEM specimen discs prior to final ion beam milling. <a href=\"https:\/\/www.aem.imr.tohoku.ac.jp\/en\/precision-dimple-grinder-gatan-model-656-3\/\" class=\"more-link\">&#8230;<span class=\"screen-reader-text\">  Precision Dimple Grinder Gatan Model 656-3<\/span><\/a><\/p>\n","protected":false},"author":11,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_locale":"en_US","_original_post":"5182","footnotes":""},"class_list":["post-5184","page","type-page","status-publish","hentry","en-US"],"_links":{"self":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/pages\/5184","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/comments?post=5184"}],"version-history":[{"count":4,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/pages\/5184\/revisions"}],"predecessor-version":[{"id":5277,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/pages\/5184\/revisions\/5277"}],"wp:attachment":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/media?parent=5184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}