{"id":1277,"date":"2025-12-05T08:02:36","date_gmt":"2025-12-05T08:02:36","guid":{"rendered":"https:\/\/welleltron.com\/?post_type=product&#038;p=1277"},"modified":"2025-12-26T08:03:21","modified_gmt":"2025-12-26T08:03:21","slug":"cmi165-thickness","status":"publish","type":"product","link":"https:\/\/welleltron.com\/vi\/test-equipment\/thickness-gauges\/cmi165-thickness\/","title":{"rendered":"Hitachi CMI165 Copper Thickness Tester"},"content":{"rendered":"<h2 data-path-to-node=\"4\">1. Overview of the Hitachi CMI165<\/h2>\n<p data-path-to-node=\"5\">The <b data-path-to-node=\"5\" data-index-in-node=\"4\">Hitachi CMI165<\/b> is a specialized <b data-path-to-node=\"5\" data-index-in-node=\"37\">digital thickness gauge<\/b> that measures copper thickness on both rigid and flexible PCB materials. Unlike standard <b data-path-to-node=\"5\" data-index-in-node=\"150\">coating thickness gauges<\/b> that might struggle with the conductivity of copper over various substrates, the CMI 165 is &#8220;substrate independent.&#8221; This means the thickness reading is not influenced by the laminate thickness or any copper layers on the opposite side of the board.<\/p>\n<p data-path-to-node=\"6\">Designed with portability in mind, this <b data-path-to-node=\"6\" data-index-in-node=\"40\">thickness gauge meter<\/b> allows for rapid testing directly on the production line. Whether you are auditing incoming copper-clad laminates (CCL) or checking the thickness of pcb board surfaces after the plating process, the CMI 165 provides the high precision thickness data required for high-reliability applications.<\/p>\n<h2 data-path-to-node=\"8\">2. Core Functionality: Micro-Resistance Technology<\/h2>\n<p data-path-to-node=\"9\">The technical heart of the <b data-path-to-node=\"9\" data-index-in-node=\"27\">Hitachi CMI<\/b>165 is its use of the Four-Point Probe micro-resistance method. This is the gold standard for measuring conductive layers on non-conductive substrates.<\/p>\n<h3 data-path-to-node=\"12\">Key Features of the CMI165:<\/h3>\n<ul data-path-to-node=\"13\">\n<li>\n<p data-path-to-node=\"13,0,0\"><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">Automatic Temperature Compensation:<\/b> Resistance is affected by temperature. The CMI 165 automatically adjusts its readings based on the ambient temperature, ensuring the <b data-path-to-node=\"13,0,0\" data-index-in-node=\"169\">thickness units<\/b> remain consistent in both air-conditioned labs and hot plating shops.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,1,0\"><b data-path-to-node=\"13,1,0\" data-index-in-node=\"0\">Dual Mode Capability:<\/b> The device can measure both Electroless Copper and <b data-path-to-node=\"13,1,0\" data-index-in-node=\"73\">Electrodeposited Copper<\/b>, with user-selectable settings to account for the differing conductivity of these materials.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,2,0\"><b data-path-to-node=\"13,2,0\" data-index-in-node=\"0\">Digital Gauge Meter Display:<\/b> The large, backlit <b data-path-to-node=\"13,2,0\" data-index-in-node=\"48\">gauge meter digital<\/b> screen allows for easy reading in dark environments, displaying values in mils, <span class=\"math-inline\" data-math=\"\\mu m\" data-index-in-node=\"148\">$\\mu m$<\/span>, or <span class=\"math-inline\" data-math=\"oz\" data-index-in-node=\"158\">$oz$<\/span> (ounces).<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"15\">3. Industrial Applications in Electronics Manufacturing<\/h2>\n<p data-path-to-node=\"16\">The CMI165 is an essential <b data-path-to-node=\"16\" data-index-in-node=\"28\">thickness gauge tool<\/b> across several stages of the PCB lifecycle.<\/p>\n<h3 data-path-to-node=\"17\">Quality Control in PCB Fabrication<\/h3>\n<p data-path-to-node=\"18\">During the plating process, it is easy for copper to be distributed unevenly. Using the CMI 165 for pcb thickness measurement at multiple points on a panel allows engineers to identify &#8220;thin spots&#8221; before the board moves to the etching stage. This prevents the creation of weak traces that could lead to circuit failure.<\/p>\n<h3 data-path-to-node=\"19\">Incoming Material Inspection<\/h3>\n<p data-path-to-node=\"20\">Manufacturers must verify that the <b data-path-to-node=\"20\" data-index-in-node=\"35\">standard pcb board thickness<\/b> of the copper foil matches the supplier&#8217;s specifications. The CMI165 acts as a reliable <b data-path-to-node=\"20\" data-index-in-node=\"153\">thickness measurement instrument<\/b> for auditing raw materials, ensuring that the <b data-path-to-node=\"20\" data-index-in-node=\"232\">standard pcb thickness<\/b> (such as 0.5oz or 1oz copper) is accurate before production begins.<\/p>\n<h3 data-path-to-node=\"21\">Surface Finishing Industry<\/h3>\n<p data-path-to-node=\"22\">For boards that require precious metal finishing, the base copper thickness must be correct. The CMI165 is a versatile thickness tool that ensures the foundation is solid before gold, silver, or tin is applied.<\/p>\n<h2 data-path-to-node=\"24\">4. Technical Characteristics and Data Integrity<\/h2>\n<p data-path-to-node=\"25\">The CMI 165 is built for precision. Its data characteristics ensure that it remains a trusted thickness measurement tool for aerospace and medical electronics.<\/p>\n<ul data-path-to-node=\"26\">\n<li>\n<p data-path-to-node=\"26,0,0\"><b data-path-to-node=\"26,0,0\" data-index-in-node=\"0\">High Resolution:<\/b> The <b data-path-to-node=\"26,0,0\" data-index-in-node=\"21\">digital thickness gauge<\/b> provides readings down to 0.01 mils or 0.1 <span class=\"math-inline\" data-math=\"\\mu m\" data-index-in-node=\"88\">$\\mu m$<\/span>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"26,1,0\"><b data-path-to-node=\"26,1,0\" data-index-in-node=\"0\">Repeatability:<\/b> It offers exceptional consistency, with typical repeatability within 1% for standard electrodeposited copper.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"26,2,0\"><b data-path-to-node=\"26,2,0\" data-index-in-node=\"0\">Measurement Units:<\/b> Users can easily toggle between different <b data-path-to-node=\"26,2,0\" data-index-in-node=\"61\">thickness measurement units<\/b> (metric vs. imperial) to match customer requirements.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"26,3,0\"><b data-path-to-node=\"26,3,0\" data-index-in-node=\"0\">Calibration Memory:<\/b> The device can store a <a href=\"https:\/\/welleltron.com\/vi\/calibration-standard-plate\/\"><b data-path-to-node=\"26,3,0\" data-index-in-node=\"43\">Calibration Standard<\/b><\/a> profile, making it easy to reset the device to factory or user-defined accuracy levels.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"28\">5. Maintenance and Calibration Standard Protocols<\/h2>\n<p data-path-to-node=\"29\">To maintain its status as a <b data-path-to-node=\"29\" data-index-in-node=\"28\">high precision thickness<\/b> instrument, the CMI 165 requires regular care.<\/p>\n<h3 data-path-to-node=\"30\">Probe Maintenance<\/h3>\n<p data-path-to-node=\"31\">The probe pins are the most sensitive part of this <b data-path-to-node=\"31\" data-index-in-node=\"51\">thickness gauge tool<\/b>. They must be kept free of dirt, oil, and oxidation. Using a <b data-path-to-node=\"31\" data-index-in-node=\"133\">Hitachi probe maintenance<\/b> kit and ensuring the pins are not &#8220;dragged&#8221; across the surface will maximize the <b data-path-to-node=\"31\" data-index-in-node=\"240\">probe lifetime<\/b>.<\/p>\n<h3 data-path-to-node=\"32\">Calibration Standard Verification<\/h3>\n<p data-path-to-node=\"33\">A certified <b data-path-to-node=\"33\" data-index-in-node=\"12\">Calibration Standard<\/b> (NIST-traceable) should be used at the start of every shift. By placing the probe on a copper foil of a known unit of thickness, the operator can ensure the CMI 165 is dialed in. This process is essential for maintaining the digital gauge meter accuracy over time.<\/p>\n<h2 data-path-to-node=\"35\">6. Sourcing and Technical Support<\/h2>\n<p data-path-to-node=\"36\">When looking to procure <b data-path-to-node=\"36\" data-index-in-node=\"24\">coating measurement instruments cmi<\/b>, it is vital to select an authorized <b data-path-to-node=\"36\" data-index-in-node=\"97\">Hitachi High-Tech<\/b> distributor.<\/p>\n<ul data-path-to-node=\"37\">\n<li>\n<p data-path-to-node=\"37,0,0\"><b data-path-to-node=\"37,0,0\" data-index-in-node=\"0\">OEM Parts:<\/b> Using genuine Hitachi probes and cables ensures that your <b data-path-to-node=\"37,0,0\" data-index-in-node=\"69\">thickness measurement instrument<\/b> continues to provide accurate data.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,1,0\"><b data-path-to-node=\"37,1,0\" data-index-in-node=\"0\">Used Equipment:<\/b> While a Used CMI 165 can be found on the market, it is highly recommended to have it recalibrated by a professional against a fresh Calibration Standard.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"37,2,0\"><b data-path-to-node=\"37,2,0\" data-index-in-node=\"0\">Global Support:<\/b> Hitachi\u2019s network provides extensive support for the CMI 165, including repair services and software updates that improve pcb thickness measurement algorithms.<\/p>\n<table style=\"width: 486.5pt; border: none;\">\n<tbody>\n<tr>\n<td><\/td>\n<td>CMI95M<\/td>\n<td>CMI165<\/td>\n<td>CMI511(CMI500)<\/td>\n<td>CMI563<\/td>\n<td>CMI760(CMI700)<\/td>\n<\/tr>\n<tr>\n<td>Technique<\/td>\n<td>Microresistance<\/td>\n<td>microresistance<\/td>\n<td>Eddy curreny<\/td>\n<td>microresistance<\/td>\n<td>microresistance<\/td>\n<\/tr>\n<tr>\n<td>Copper Foil<\/td>\n<td>\u221a<\/td>\n<td>\u221a<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u221a<\/td>\n<\/tr>\n<tr>\n<td>Copper Clad Laminate(CCL)<\/td>\n<td>\u221a<\/td>\n<td>\u221a<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u221a<\/td>\n<\/tr>\n<tr>\n<td>Copper-Surface<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u221a<\/td>\n<\/tr>\n<tr>\n<td>Copper-Fineline<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u221a<\/td>\n<\/tr>\n<tr>\n<td>Copper Thru-hole<\/td>\n<td>\u00d7<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u00d7<\/td>\n<td>optional<\/td>\n<\/tr>\n<tr>\n<td>Temperature Compensation<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u221a<\/td>\n<td>\u00d7<\/td>\n<td>\u221a (ETP Probe)<\/td>\n<\/tr>\n<tr>\n<td>Replacement Probe Tip<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u00d7<\/td>\n<td>\u221a<\/td>\n<td>\u221a (SRP-4 Probe)<\/td>\n<\/tr>\n<tr>\n<td>Unit Selection<\/td>\n<td>oz\u00a0or um<\/td>\n<td>mil or um<\/td>\n<td>mil or um<\/td>\n<td>mil or um<\/td>\n<td>mil or um<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Thickness Range<\/td>\n<td>8 indicator lights<\/p>\n<p>1\/8-4 oz<\/p>\n<p>5-140\u00a0um<\/td>\n<td>Electroless Cu<\/p>\n<p>0.01-0.5 mil<\/p>\n<p>0.25-12.7 um<\/p>\n<p>Electroplated Cu<\/p>\n<p>0.1-10 mil<\/p>\n<p>2-254 um<\/td>\n<td>0.08-4.0 mil<\/p>\n<p>2-102 um<\/td>\n<td>Electroless Cu<\/p>\n<p>0.01-0.5 mil<\/p>\n<p>0.25-12.7 um<\/p>\n<p>Electroplated Cu<\/p>\n<p>0.1-6 mil<\/p>\n<p>3-152 um<\/td>\n<td>Surface Cu<\/p>\n<p>0.01-10 mil<\/p>\n<p>0.25-254 um<\/p>\n<p>Thru-hole Cu<\/p>\n<p>0.05-4 mil<\/p>\n<p>1-102um<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-weight: 400;\">\n<\/li>\n<li><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Hitachi CMI165 Copper Thickness Tester is a specialized, micro-resistance-based instrument designed for high-resolution, non-destructive measurement of ultra-thin copper thickness on PCB surfaces, often used for quality control in HDI manufacturing.<\/p>","protected":false},"featured_media":2161,"template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[],"product_cat":[80,61],"product_tag":[],"class_list":{"0":"post-1277","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-thickness-gauges","7":"product_cat-test-equipment","9":"first","10":"instock","11":"virtual","12":"purchasable","13":"product-type-simple","14":"entry","15":"content-bg","16":"loop-entry"},"taxonomy_info":{"product_cat":[{"value":80,"label":"Hitachi Thickness Gauges"},{"value":61,"label":"Test equipment"}]},"featured_image_src_large":["https:\/\/welleltron.com\/wp-content\/uploads\/2025\/12\/CMI165-2.png",850,850,false],"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/product\/1277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/media\/2161"}],"wp:attachment":[{"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/media?parent=1277"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/product_brand?post=1277"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/product_cat?post=1277"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/welleltron.com\/vi\/wp-json\/wp\/v2\/product_tag?post=1277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}