{"id":10499,"date":"2021-12-07T20:36:39","date_gmt":"2021-12-08T02:36:39","guid":{"rendered":"http:\/\/sacheminc.com\/other-chemicals\/tetramethylammonium-hydroxide-tmah\/"},"modified":"2025-03-13T13:47:47","modified_gmt":"2025-03-13T18:47:47","slug":"tetramethylammonium-hydroxide-tmah","status":"publish","type":"page","link":"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c4-%ec%95%94%eb%aa%a8%eb%8a%84-%ed%99%94%ed%95%a9%eb%ac%bc4%ea%b8%89\/tetramethylammonium-hydroxide-tmah\/","title":{"rendered":"Tetramethylammonium Hydroxide (TMAH) Supplier | High-Purity &#038; Custom Solutions \u2013 SACHEM | CAS# 75-59-2"},"content":{"rendered":"<p><span style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><span style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" data-mce-type=\"bookmark\" class=\"mce_SELRES_start\">\ufeff<\/span>\ufeff<\/span>Tetramethylammonium Hydroxide (TMAH) manufactured by SACHEM is of the highest quality available worldwide.\u00a0 As a <a title=\"Quaternary Ammonium Compounds (Quats)\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c4-%ec%95%94%eb%aa%a8%eb%8a%84-%ed%99%94%ed%95%a9%eb%ac%bc4%ea%b8%89\/\">quaternary ammonium compound (Quat)<\/a>,\u00a0TMAH plays a crucial role in <a title=\"Semiconductor\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%86%94%eb%a3%a8%ec%85%98\/industries\/electronics-market\/\"> etching solutions and is widely used as a photoresist developer in the manufacturing of integrated circuits<\/a>,\u00a0<a href=\"https:\/\/www.sacheminc.com\/ko\/%ec%86%94%eb%a3%a8%ec%85%98\/%ed%8f%89%eb%a9%b4-%ed%8c%a8%eb%84%90-%eb%94%94%ec%8a%a4%ed%94%8c%eb%a0%88%ec%9d%b4-%ed%99%94%ed%95%99%eb%ac%bc%ec%a7%88-devera\/\">flat panel\u00a0displays<\/a>, <a title=\"Tronos\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c%ed%92%88\/%ec%9d%b8%ec%87%84-%eb%b0%b0%ec%84%a0%ed%8c%90-%ed%99%94%ed%95%99%eb%ac%bc%ec%a7%88-tronos\/\">printed circuit boards<\/a>, <a title=\"Capacitors\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%86%94%eb%a3%a8%ec%85%98\/%ec%bb%a4%ed%8c%a8%ec%8b%9c%ed%84%b0\/\">capacitors<\/a>, sensors, and other high-purity chemical applications. The molecular formula is N(CH\u2083)\u2084\u207a OH\u207b, and it is commonly manufactured as an aqueous solution, in methanol, or in propelyne glycol.\u00a0With decades of expertise, SACHEM is one of the oldest and most trusted tetramethylammonium hydroxide suppliers for semiconductor and industrial applications.<\/p>\n<h2><strong>Tetramethylammonium Hydroxide Benefits:\u00a0<\/strong><\/h2>\n<p>SACHEM\u2019s Tetramethylammonium Hydroxide (TMAH) offers unmatched reliability and quality for high-volume production. With manufacturing facilities in America and Asia, we provide global shipping to meet your needs wherever you are.<\/p>\n<ul>\n<style>\n  ul li {\n    margin-bottom: 10px\n  }\n<\/style>\n<li><strong>Metal-Free Composition:<\/strong> Contains no metal.<\/li>\n<li><strong>No Residual on Heating:<\/strong> Leaves no residue, maintaining the integrity of your processes.<\/li>\n<li><strong>Ultra-Low Contaminant Levels:<\/strong> Exceptional purity for high-tech manufacturing.<\/li>\n<li><strong>Application-Specific Grades:<\/strong> Tailored grades available to suit various industry needs.<\/li>\n<li><strong>Custom Specifications:<\/strong> We work with you to create TMAH solutions that meet your unique requirements.<\/li>\n<li><strong>Consistent Product Quality:<\/strong> Dependable performance for every batch.<img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-8919\" src=\"https:\/\/sacheminc.com\/wp-content\/uploads\/TMAH.png\" alt=\"Tetramethylammonium Hydroxide, TMAH, CAS# 75-59-2\" width=\"270\" height=\"129\" \/><\/li>\n<style>\n  h2 {\n    margin-bottom: 10px;\n  }<\/style>\n<\/ul>\n<h2><strong>SACHEM&#8217;s TMAH: High-Purity for Semiconductor &#038; Industrial Applications:<\/strong><\/h2>\n<ul>\n<li><a title=\"Advanced Ceramics\/Casting | Avanta AC\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c%ed%92%88\/avanta-%ec%97%90%eb%84%88%ec%a7%80-%ec%a0%80%ec%9e%a5-%eb%ac%bc%ec%a7%88\/%ed%8c%8c%ec%9d%b8-%ec%84%b8%eb%9d%bc%eb%af%b9-avanta-ac\/\">Advanced Ceramics<\/a><\/li>\n<li><a title=\"Ionic Salts | Avanta EL\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c%ed%92%88\/avanta-%ec%97%90%eb%84%88%ec%a7%80-%ec%a0%80%ec%9e%a5-%eb%ac%bc%ec%a7%88\/%ec%a0%84%ed%95%b4%ec%95%a1-%ed%99%94%ed%95%99%eb%ac%bc%ec%a7%88-avanta-el\/\">Electrolytes<\/a><\/li>\n<li><a title=\"Catalysts, Additives, and Auxiliaries for Polymers | Catana\u2122 CAA\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c%ed%92%88\/%ed%8f%b4%eb%a6%ac%eb%a8%b8-%ed%99%94%ed%95%99%eb%ac%bc%ec%a7%88-catana\/%ed%8f%b4%eb%a6%ac%eb%a8%b8-%ec%b4%89%eb%a7%a4-%ec%b2%a8%ea%b0%80%ec%a0%9c-%eb%b0%8f-%eb%b3%b4%ec%a1%b0%ec%a0%9c-catana-caa\/\">Catalyst<\/a><\/li>\n<li><a title=\"Transesterification Catalyst | Catana\u2122 TEC\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c%ed%92%88\/%ed%8f%b4%eb%a6%ac%eb%a8%b8-%ed%99%94%ed%95%99%eb%ac%bc%ec%a7%88-catana\/%ec%97%90%ec%8a%a4%ed%85%8c%eb%a5%b4-%ea%b5%90%ed%99%98-%ec%b4%89%eb%a7%a4-catana-tec\/\">Trans-esterification catalyst<\/a><\/li>\n<li><a title=\"Photoresist Developer | Envure DV\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/electronic-materials\/%eb%b0%98%eb%8f%84%ec%b2%b4-%ed%99%94%ed%95%99%eb%ac%bc%ec%a7%88-envure\/%ed%8f%ac%ed%86%a0%eb%a0%88%ec%a7%80%ec%8a%a4%ed%8a%b8-%ed%98%84%ec%83%81%ec%95%a1-envure-dv\/\">Photoresist developer<\/a><\/li>\n<li><a title=\"Selective Etching | Envure SE\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%86%94%eb%a3%a8%ec%85%98\/%ec%84%a0%ed%83%9d%ec%a0%81-%ec%97%90%ec%b9%ad-envure-se\/\">Component for smooth silicon etching\/lithography<\/a><\/li>\n<li><a title=\"Clay Stabilizer | Endura CS\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c%ed%92%88\/%ec%a0%90%ed%86%a0-%ec%95%88%ec%a0%95%ec%a0%9c-endura-cs\/\">Strong Base<\/a><\/li>\n<li><a title=\"Wafer Cleaning | Envure CL&amp;CM\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%86%94%eb%a3%a8%ec%85%98\/%ec%9b%a8%ec%9d%b4%ed%8d%bc-%ec%84%b8%ec%b2%99-envure-clcm\/\">Wafer cleaning component<\/a><\/li>\n<li><a title=\"Chemical Stripper | Envure ST\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%86%94%eb%a3%a8%ec%85%98\/%ed%99%94%ed%95%99%eb%ac%bc%ec%a7%88-%eb%b0%95%eb%a6%ac%ec%a0%9c-envure-st\/\">Chemical stripper in semiconductor manufacturing<\/a><\/li>\n<li><a title=\"Structure Directing Agents (SDA) | ZeoGen\u2122\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%a0%9c%ed%92%88\/%ea%b5%ac%ec%a1%b0-%ec%9c%a0%eb%8f%84%ec%b2%b4sda-zeogen\/\">Structure directing agent for zeolite synthesis<\/a><\/li>\n<\/ul>\n<h2><strong>What is Tetramethylammonium Hydroxide (TMAH) Used For?:<\/strong><\/h2>\n<ul>\n<li>Polymers<\/li>\n<li>Semiconductor<\/li>\n<li>Zeolites<\/li>\n<li>Printed Wiring Board<\/li>\n<li>Energy Storage<\/li>\n<li>Oilfield<\/li>\n<\/ul>\n<p>SACHEM is committed to the safe handling of all of our products. \u00a0For more information on how to handle this product safely please visit our <a title=\"TMAH Safety Services\" href=\"https:\/\/www.sacheminc.com\/ko\/%ec%84%9c%eb%b9%84%ec%8a%a4\/tmah-%ec%95%88%ec%a0%84-%ec%84%9c%eb%b9%84%ec%8a%a4\/\">TMAH Safety Services<\/a> page.\u00a0 You can also request a TMAH safety and handling presentation that includes information on toxicity, PPE suggestions and more.<br \/>\n<a href=\"https:\/\/www.sacheminc.com\/top-12-tetramethylammonium-hydroxide-frequently-asked-questions\/\" rel=\"noopener\" target=\"_blank\">Top 12 FAQs about Tetramethylammonium Hydroxide<\/a><\/p>\n<h5>Available Products<\/h5>\n<div class=\"prod_s\"><strong>Tetramethylammonium Hydroxide 20% UP<\/strong>CAS# 75-59-2<br \/>\n<a href=\"https:\/\/go.sacheminc.com\/Quote-Request.html?Product_Name=TMAH 20UP\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22076 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Quote.gif\" alt=\"Get a Quote\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Sample-Request.html?Product_Name=Tetramethylammonium Hydroxide 20UP\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22082 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/sample.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a>  <a href=\"https:\/\/go.sacheminc.com\/Product-Sheet-Request.html?Product_Name=Tetramethylammonium Hydroxide 20UP&#038;PSURL=https:\/\/sacheminc.com\/wp-content\/uploads\/productsheets\/TMAH_20__UP__Product_Sheet.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22122 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Product-Sheet.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a><\/div>\n<div class=\"prod_s\"><strong>Tetramethylammonium Hydroxide 24.9% Aqueous <\/strong>CAS# 75-59-2<br \/>\n<a href=\"https:\/\/go.sacheminc.com\/Quote-Request.html?Product_Name=TMAH 24.9 AQ\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22076 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Quote.gif\" alt=\"Get a Quote\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Sample-Request.html?Product_Name=Tetramethylammonium Hydroxide 24.9AQ\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22082 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/sample.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Product-Sheet-Request.html?Product_Name=Tetramethylammonium Hydroxide 24.9 AQ&#038;PSURL=https:\/\/sacheminc.com\/wp-content\/uploads\/productsheets\/TMAH_24.9__AQ__Product_Sheet.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22122 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Product-Sheet.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a><\/div>\n<div class=\"prod_s\"><strong>Tetramethylammonium Hydroxide 25% Aqueous<\/strong> CAS# 75-59-2<br \/>\n<a href=\"https:\/\/go.sacheminc.com\/Quote-Request.html?Product_Name=Tetramethylammonium Hydroxide 25 AQ\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22076 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Quote.gif\" alt=\"Get a Quote\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Sample-Request.html?Product_Name=Tetramethylammonium Hydroxide 25AQ\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22082 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/sample.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Product-Sheet-Request.html?Product_Name=Tetramethylammonium Hydroxide 25 AQ&#038;PSURL=https:\/\/sacheminc.com\/wp-content\/uploads\/productsheets\/TMAH_25__AQ__Product_Sheet1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22122 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Product-Sheet.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a><\/div>\n<div class=\"prod_s\"><strong>Tetramethylammonium Hydroxide 20% in Propylene Glycol<\/strong> CAS# 75-59-2\/57-55-6<br \/>\n<a href=\"https:\/\/go.sacheminc.com\/Quote-Request.html?Product_Name=Tetramethylammonium Hydroxide 20 in PG\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22076 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Quote.gif\" alt=\"Get a Quote\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Sample-Request.html?Product_Name=Tetramethylammonium Hydroxide 20 in PG\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22082 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/sample.gif\" alt=\"\" width=\"142\" height=\"43\" \/> <\/a><\/div>\n<div class=\"prod_s\"><strong>Tetramethylammonium hydroxide 24.7% in Methanol<\/strong> CAS# 75-59-2\/67-56-1<br \/>\n<a href=\"https:\/\/go.sacheminc.com\/Quote-Request.html?Product_Name=Tetramethylammonium Hydroxide 24.7 in MeOH\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22076 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Quote.gif\" alt=\"Get a Quote\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Sample-Request.html?Product_Name=Tetramethylammonium Hydroxide 24.7 in MeOH\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22082 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/sample.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Product-Sheet-Request.html?Product_Name=Tetramethylammonium Hydroxide 24.7 in MeOH&#038;PSURL=https:\/\/sacheminc.com\/wp-content\/uploads\/productsheets\/TMAH_24.7__in_MeOH__Product_Sheet.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22122 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Product-Sheet.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a><\/div>\n<div class=\"prod_s\"><strong>Tetramethylammonium hydroxide 25% in Methanol<\/strong>\u00a0 CAS# 75-59-2\/67-56-1<br \/>\n<a href=\"https:\/\/go.sacheminc.com\/Quote-Request.html?Product_Name=Tetramethylammonium Hydroxide 25 in MeOH\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22076 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Quote.gif\" alt=\"Get a Quote\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Sample-Request.html?Product_Name=Tetramethylammonium Hydroxide 25 in MeOH\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22082 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/sample.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Product-Sheet-Request.html?Product_Name=Tetramethylammonium Hydroxide 25 in MeOH&#038;PSURL=https:\/\/sacheminc.com\/wp-content\/uploads\/productsheets\/TMAH_25__in_MeOH__Product_Sheet.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22122 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Product-Sheet.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a><\/div>\n<div class=\"prod_s\"><strong>Tetramethylammonium Hydroxide, 98%, Pentahydrate Crystals<\/strong> CAS# 10424-65-4<br \/>\n<a href=\"https:\/\/go.sacheminc.com\/Quote-Request.html?Product_Name=Tetramethylammonium Hydroxide 98 Pentahydrate\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22076 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Quote.gif\" alt=\"Get a Quote\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/go.sacheminc.com\/Sample-Request.html?Product_Name=Tetramethylammonium Hydroxide 98 Pentahydrate\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22082 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/sample.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a> <a href=\"https:\/\/sacheminc.com\/wp-content\/uploads\/productsheets\/TETRAMETHYLAMMONIUM_HYDROXIDE__98__PENTAHYDRATE_CRYSTALS.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22122 alignnone\" src=\"https:\/\/www.sacheminc.com\/wp-content\/uploads\/Product-Sheet.gif\" alt=\"\" width=\"142\" height=\"43\" \/><\/a><\/div>\n<div><\/div>\n<div><a href=\"https:\/\/www.sacheminc.com\/ko\/safety-data-sheet-sds-database\/\">Click here to access our SDS Database<\/a><\/div>\n<p>Synonyms: Ammonium Tetramethyl Hydroxide, TMAOH, TMAH, TMH,<\/p>\n<p>Here is our store front on chembuyersguide.com: <a href=\"http:\/\/chembuyersguide.com\/partners\/sachem.html\">http:\/\/chembuyersguide.com\/partners\/sachem.html<\/a><\/p>\n<h2 class=\"nova-e-text nova-e-text--size-xl nova-e-text--family-sans-serif nova-e-text--spacing-none nova-e-text--color-grey-900\"><a href=\"https:\/\/www.researchgate.net\/publication\/274310119_Strategies_for_Tetramethylammonium_Hydroxide_TMAH_Recovery_and_Recycling\">Strategies for (TMAH) Recovery and Recycling<\/a><\/h2>\n<p>SACHEM has developed a closed loop recovery and recycling system for TMAH.\u00a0 It helps in the safe handling of TMAH by limiting exposure.<\/p>\n<h2>Industrial Uses<\/h2>\n<p>One of the industrial uses of TMAH is for the\u00a0<a class=\"mw-redirect\" title=\"Anisotropic\" href=\"https:\/\/en.wikipedia.org\/wiki\/Anisotropic\">anisotropic<\/a>\u00a0etching of silicon.<sup id=\"cite_ref-Thong_10-0\" class=\"reference\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Tetramethylammonium_hydroxide#cite_note-Thong-10\">[10]<\/a><\/sup>\u00a0It is used as a basic solvent in the\u00a0<a title=\"Photographic processing\" href=\"https:\/\/en.wikipedia.org\/wiki\/Photographic_processing\">development<\/a>\u00a0of acidic\u00a0<a title=\"Photoresist\" href=\"https:\/\/en.wikipedia.org\/wiki\/Photoresist\">photoresist<\/a>\u00a0in the\u00a0<a title=\"Photolithography\" href=\"https:\/\/en.wikipedia.org\/wiki\/Photolithography\">photolithography<\/a>\u00a0process, and is highly effective in stripping photoresist. TMAH has some\u00a0<a class=\"mw-redirect\" title=\"Phase transfer catalyst\" href=\"https:\/\/en.wikipedia.org\/wiki\/Phase_transfer_catalyst\">phase transfer catalyst<\/a>\u00a0properties, and is used as a\u00a0<a title=\"Surfactant\" href=\"https:\/\/en.wikipedia.org\/wiki\/Surfactant\">surfactant<\/a>\u00a0in the synthesis of\u00a0<a title=\"Ferrofluid\" href=\"https:\/\/en.wikipedia.org\/wiki\/Ferrofluid\">ferrofluid<\/a>, to inhibit\u00a0<a title=\"Nanoparticle\" href=\"https:\/\/en.wikipedia.org\/wiki\/Nanoparticle\">nanoparticle<\/a>\u00a0aggregation.<\/p>\n<p>TMAH is the most common reagent currently used in\u00a0<a class=\"new\" title=\"Thermochemolysis (page does not exist)\" href=\"https:\/\/en.wikipedia.org\/w\/index.php?title=Thermochemolysis&amp;action=edit&amp;redlink=1\">thermochemolysis<\/a>, an analytical technique involving both\u00a0<a title=\"Pyrolysis\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrolysis\">pyrolysis<\/a> and chemical derivatization of the analyte.<\/p>\n<p>TMAH belongs to the family of quaternary ammonium hydroxide (QAH) solutions and is commonly used to\u00a0<a class=\"mw-redirect\" title=\"Anisotropic\" href=\"https:\/\/en.wikipedia.org\/wiki\/Anisotropic\">anisotropically<\/a>\u00a0<a class=\"mw-redirect\" title=\"Industrial etching\" href=\"https:\/\/en.wikipedia.org\/wiki\/Industrial_etching\">etch<\/a>\u00a0<a title=\"Silicon\" href=\"https:\/\/en.wikipedia.org\/wiki\/Silicon\">silicon<\/a>. Typical etching temperatures are between 70 and 90\u00a0\u00b0C and typical concentrations are 5\u201325 wt% TMAH in water. (100) silicon etch rates generally increase with temperature and increasing TMAH concentration. Etched silicon (100) surface roughness decreases with increasing TMAH concentration, and smooth surfaces can be obtained with 20% TMAH solutions. Etch rates are typically in the 0.1\u20131\u00a0<a title=\"Micrometre\" href=\"https:\/\/en.wikipedia.org\/wiki\/Micrometre\">micrometer<\/a>\u00a0per minute range.*<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ufeff\ufeff\ufeffTetramethylammonium Hydroxide (TMAH) manufactured by SACHEM is of the highest quality available worldwide.\u00a0 As a quaternary ammonium compound (Quat),\u00a0TMAH plays a crucial role in etching solutions and is widely used as a photoresist developer in the manufacturing of integrated circuits,\u00a0flat panel\u00a0displays, printed circuit boards, capacitors, sensors, and other high-purity chemical applications. The molecular formula is &hellip;<\/p>\n","protected":false},"author":43,"featured_media":0,"parent":10363,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10499","page","type-page","status-publish","hentry","no-thumb"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/pages\/10499","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/users\/43"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/comments?post=10499"}],"version-history":[{"count":0,"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/pages\/10499\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/pages\/10363"}],"wp:attachment":[{"href":"https:\/\/www.sacheminc.com\/ko\/wp-json\/wp\/v2\/media?parent=10499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}