{"product_id":"ceramic-base-sheet-copper-silver-gold-coating-plates","title":"Ceramic Base Sheet with Surface Metal(Copper-Silver-Gold) Coating Plates","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eCeramic Base Sheet with Metal Coating — Precision Thermal Substrates for Electronics \u0026amp; DIY Builds\u003c\/h2\u003e\n\u003cp\u003eWhen your LED driver, power module, or custom PCB runs hot and standard FR4 just won't cut it, you need a substrate that conducts heat away fast while keeping circuits electrically isolated. These ceramic base sheets with surface metal coating are engineered for makers, electronics engineers, and small-workshop builders who demand reliable thermal management without the cost of full custom fabrication.\u003c\/p\u003e\n\u003cp\u003eEach sheet consists of a rigid ceramic base — either Alumina (Al₂O₃) or Aluminum Nitride (AlN) — bonded with a precision metal surface layer of copper, silver, or gold. Dimensions span from 3×5mm (approx. 0.12\"×0.20\") up to 55×55mm (approx. 2.17\"×2.17\"), with thickness ranging from 0.3mm to 1.6mm (approx. 0.012\"–0.063\"). Single-side and double-side metallized options are available across the range.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include thermal interface substrates for high-power LED arrays, insulating base layers for DIY power electronics and motor driver boards, and precision ceramic carriers for RF\/microwave circuit prototyping. Long-tail applications include ceramic DBC (Direct Bonded Copper) substrate replacement, custom thermoelectric cooler (TEC) mounting plates, and small-batch IGBT module base fabrication.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚡\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for soldering, silver-epoxy bonding, and direct die-attach processes. Compatible with standard PCB assembly workflows. Check variant dimensions before ordering to confirm fit for your application.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Ceramic Metal Coating Substrate Sheets\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\u003cstrong\u003eExcellent Thermal Conductivity\u003c\/strong\u003e — Al₂O₃ ceramic offers ~20–25 W\/m·K; AlN variants deliver ~150–170 W\/m·K, making them ideal for high-power thermal dissipation in compact assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cstrong\u003eHigh Electrical Isolation\u003c\/strong\u003e — The ceramic base provides strong dielectric insulation, separating heat-spreading metal layers from sensitive circuit components safely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eMultiple Metal Finish Options\u003c\/strong\u003e — Choose copper (cost-effective, solderable), silver (enhanced conductivity), or gold (corrosion-resistant, wire-bondable) surface metallization to match your process requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eWide Size Range\u003c\/strong\u003e — From miniature 3×5mm pads to larger 55×55mm panels, with single-side or double-side metal coating, covering a broad spectrum of DIY and prototyping needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eCorrosion \u0026amp; Oxidation Resistance\u003c\/strong\u003e — Gold and silver finishes resist oxidation; copper variants maintain solderability under standard storage conditions. The ceramic core is chemically inert.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔬\u003c\/span\u003e\u003cstrong\u003eFlat, Dimensionally Stable Surface\u003c\/strong\u003e — Ceramic substrates maintain shape under thermal cycling, ensuring consistent contact and bond integrity in repeated heat-cool cycles typical of power electronics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Ceramic Metal Coating Substrate\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBase Material\u003c\/th\u003e\n\u003ctd\u003eAl₂O₃ (Alumina) or AlN (Aluminum Nitride) — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Metallization\u003c\/th\u003e\n\u003ctd\u003eCopper \/ Silver \/ Gold — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoating Sides\u003c\/th\u003e\n\u003ctd\u003eSingle Side or Double Side — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (L × W)\u003c\/th\u003e\n\u003ctd\u003e3×5mm to 55×55mm (approx. 0.12\"×0.20\" to 2.17\"×2.17\") — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e0.3mm – 1.6mm (approx. 0.012\" – 0.063\") — see variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRectangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem of Measurement\u003c\/th\u003e\n\u003ctd\u003eMetric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAl₂O₃ Thermal Conductivity\u003c\/th\u003e\n\u003ctd\u003eTypically 20–25 W\/m·K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAlN Thermal Conductivity\u003c\/th\u003e\n\u003ctd\u003eTypically 150–170 W\/m·K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDielectric Strength\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSmooth, flat metallized surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose between Al₂O₃ and AlN ceramic base?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAl₂O₃ (Alumina) is the more affordable option with thermal conductivity of ~20–25 W\/m·K, suitable for moderate heat loads such as LED drivers and small power modules. AlN (Aluminum Nitride) offers significantly higher thermal conductivity (~150–170 W\/m·K) and is the right choice for high-power applications like IGBT modules, laser diodes, or thermoelectric cooler mounts where heat must be removed rapidly. If your component dissipates more than a few watts in a compact footprint, AlN is the recommended choice.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between single-side and double-side metal coating?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eSingle-side coating means only one face of the ceramic substrate has the metal layer — typically used when you need one solderable or bondable surface and the other side mounts directly to a heatsink or chassis. Double-side coating provides metal on both faces, enabling electrical connections or solder joints on both sides, which is common in DBC (Direct Bonded Copper) substrate applications and sandwich-style power module assemblies.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhich metal finish should I choose — copper, silver, or gold?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCopper is the most cost-effective and is fully solderable with standard Sn-Pb or lead-free solders — ideal for most DIY power electronics and LED builds. Silver offers slightly higher electrical conductivity and is used in silver-epoxy bonding processes. Gold is the most corrosion-resistant and is preferred for wire bonding, long-term reliability in humid environments, or applications where the surface must remain oxide-free over time. Select based on your bonding process and environmental requirements.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan these ceramic sheets be cut or drilled to a custom size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCeramic substrates are brittle and cannot be cut with standard metal tools. Precision cutting requires diamond-tipped blades or laser cutting equipment. If you need a custom size not listed in the variants, we recommend selecting the closest larger size and consulting a specialist ceramic machining service for trimming. Drilling is possible with diamond-coated drill bits at low speed with water cooling, but should be approached carefully to avoid cracking.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre these substrates compatible with standard PCB soldering processes?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — copper and silver metallized variants are compatible with standard reflow soldering and hand-soldering processes using appropriate flux. Gold-coated variants are compatible with wire bonding and gold-tin solder processes. Ensure the substrate is clean and free of contamination before soldering. The ceramic base itself is not affected by typical soldering temperatures (up to ~300°C for lead-free processes).\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I select the right size for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the footprint of your component or die that will be mounted on the substrate, then select a sheet that is at least 1–2mm larger on each side to allow for solder fillet or bonding margin. For LED arrays, match the substrate to the LED star or COB footprint. For power transistors or IGBTs, the substrate should cover the full device base plus any required clearance to adjacent conductors. Refer to the variant size list above for all available dimensions.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store these ceramic metal coating sheets to prevent oxidation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eStore in a dry, low-humidity environment away from corrosive gases. Copper-coated variants are most susceptible to surface oxidation over time — if long-term storage is needed before use, consider vacuum-sealed packaging or desiccant storage. Gold and silver variants are significantly more stable and can be stored under normal workshop conditions without special precautions. Avoid touching the metallized surface with bare hands to prevent contamination from skin oils.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your ceramic material, size, and metal coating above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose between Al₂O₃ and AlN ceramic base?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Al₂O₃ (Alumina) is the more affordable option with thermal conductivity of ~20–25 W\/m·K, suitable for moderate heat loads such as LED drivers and small power modules. AlN (Aluminum Nitride) offers significantly higher thermal conductivity (~150–170 W\/m·K) and is the right choice for high-power applications like IGBT modules, laser diodes, or thermoelectric cooler mounts.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between single-side and double-side metal coating?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Single-side coating means only one face of the ceramic substrate has the metal layer. Double-side coating provides metal on both faces, enabling electrical connections or solder joints on both sides, common in DBC substrate applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which metal finish should I choose — copper, silver, or gold?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Copper is fully solderable with standard solders — ideal for most DIY power electronics. Silver is used in silver-epoxy bonding. Gold is preferred for wire bonding and long-term reliability in humid environments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these ceramic sheets be cut or drilled to a custom size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Ceramic substrates are brittle and require diamond-tipped blades or laser cutting for precision sizing. Drilling is possible with diamond-coated bits at low speed with water cooling.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these substrates compatible with standard PCB soldering processes?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — copper and silver metallized variants are compatible with standard reflow and hand-soldering. Gold-coated variants are compatible with wire bonding and gold-tin solder processes. The ceramic base withstands typical soldering temperatures up to ~300°C.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I select the right size for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Select a sheet at least 1–2mm larger on each side than your component footprint to allow for solder fillet or bonding margin. Refer to the variant size list for all available dimensions.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How should I store these ceramic metal coating sheets to prevent oxidation?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Store in a dry, low-humidity environment. Copper-coated variants benefit from vacuum-sealed or desiccant storage for long-term use. Gold and silver variants are stable under normal workshop conditions. Avoid touching metallized surfaces with bare hands.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"Al₂O₃ Ceramic 3×5×0.65mm(Double Side Copper)","offer_id":52411400356114,"sku":"PHGLFBLMJGXGL-One25081096x1","price":10.59,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 17.5×30×0.5mm(A Single Side Copper)","offer_id":52411400388882,"sku":"PHGLFBLMJGXGL-One25081097x1","price":39.92,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 17.5×30×0.5mm(B Single Side Copper)","offer_id":52411400421650,"sku":"PHGLFBLMJGXGL-One25081098x1","price":39.92,"currency_code":"USD","in_stock":true},{"title":"AlN Ceramic 8×8×0.45mm(Double Side Copper)","offer_id":52411400454418,"sku":"PHGLFBLMJGXGL-One25081099x1","price":51.68,"currency_code":"USD","in_stock":true},{"title":"AlN Ceramic 10×10×1.3mm(Single Side Copper)","offer_id":52411400487186,"sku":"PHGLFBLMJGXGL-One25081100x1","price":31.5,"currency_code":"USD","in_stock":true},{"title":"AlN Ceramic 12×12×0.35mm(Double Side Copper)","offer_id":52411400519954,"sku":"PHGLFBLMJGXGL-One25081101x1","price":53.37,"currency_code":"USD","in_stock":true},{"title":"AlN Ceramic 12×12×0.3mm(Single Side Copper)","offer_id":52411400552722,"sku":"PHGLFBLMJGXGL-One25081102x1","price":29.82,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 12×18×1.0mm(Single Side Gold）","offer_id":52411400585490,"sku":"PHGLFBLMJGXGL-One25081103x1","price":43.28,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 12×18×1.0mm(Single Side Silver）","offer_id":52411400618258,"sku":"PHGLFBLMJGXGL-One25081104x1","price":43.28,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 12×18×1.2mm(Double Side Copper)","offer_id":52411400651026,"sku":"PHGLFBLMJGXGL-One25081105x1","price":53.37,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 1.5×7×0.5mm(DOuble Side Gold)","offer_id":52411400683794,"sku":"PHGLFBLMJGXGL-One25081106x1","price":19.73,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 10×10×1.25mm(Double Side Copper）","offer_id":52411400716562,"sku":"PHGLFBLMJGXGL-One25081107x1","price":29.82,"currency_code":"USD","in_stock":true},{"title":"AlN Ceramic 10×10×1.25mm(Double Side Copper）","offer_id":52411400749330,"sku":"PHGLFBLMJGXGL-One25081108x1","price":29.82,"currency_code":"USD","in_stock":true},{"title":"AlN Ceramic 10×12×0.8mm(Single Side Copper）","offer_id":52411400782098,"sku":"PHGLFBLMJGXGL-One25081109x1","price":53.37,"currency_code":"USD","in_stock":true},{"title":"Al₂O₃ Ceramic 55×55×1.2mm(Double Side Copper)","offer_id":52411400814866,"sku":"PHGLFBLMJGXGL-One25081110x1","price":50.01,"currency_code":"USD","in_stock":true},{"title":"AlN Ceramic 15.8×21×1.6mm(Double Side Copper)","offer_id":52411400847634,"sku":"PHGLFBLMJGXGL-One25081111x1","price":53.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture4of6_b1a1a12c-4bdc-4bf1-b8d4-293730b2d743.jpg?v=1782411389","url":"https:\/\/homediyer.com\/products\/ceramic-base-sheet-copper-silver-gold-coating-plates","provider":"HomeDIYer","version":"1.0","type":"link"}