{"id":7709,"date":"2026-02-06T09:00:00","date_gmt":"2026-02-06T09:00:00","guid":{"rendered":"https:\/\/www.keylinktech.com\/?p=7709"},"modified":"2026-03-02T08:07:27","modified_gmt":"2026-03-02T08:07:27","slug":"how-does-plasma-cleaning-improve-the-reliability-of-semiconductor-devices","status":"publish","type":"post","link":"https:\/\/www.keylinktech.com\/es\/plasma-surface-technology\/application\/how-does-plasma-cleaning-improve-the-reliability-of-semiconductor-devices\/","title":{"rendered":"Limpieza de superficies con plasma para dispositivos de GaN y Ga\u2082O\u2083: mejora de la fiabilidad del contacto y la estabilidad t\u00e9rmica"},"content":{"rendered":"<p class=\"wp-block-paragraph\">La limpieza de superficies de semiconductores con plasma elimina \u00f3xidos nativos, contaminaci\u00f3n de carbono y enlaces colgantes de GaN y Ga\u2082O\u2083 a bajas temperaturas, lo que mejora la resistencia de contacto \u00f3hmico y la confiabilidad del dispositivo sin el da\u00f1o t\u00e9rmico que causa el procesamiento tradicional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Por qu\u00e9 la preparaci\u00f3n de la superficie es el cuello de botella del que nadie habla<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El GaN y el Ga\u2082O\u2083 reciben mucha atenci\u00f3n por las razones correctas. La banda prohibida de 3,4 eV del GaN y el rango m\u00e1s amplio de 4,5 a 5,3 eV del Ga\u2082O\u2083 los sit\u00faan en una categor\u00eda diferente al silicio para aplicaciones de alta potencia y alta frecuencia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Voltajes de ruptura m\u00e1s altos, menor resistencia de encendido, mejor eficiencia a temperaturas elevadas: el caso del rendimiento est\u00e1 bien establecido.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lo que recibe menos atenci\u00f3n es lo que sucede en la superficie durante la fabricaci\u00f3n. El crecimiento epitaxial y el procesamiento del dispositivo dejan \u00f3xidos nativos, residuos de carbono y contaminaci\u00f3n por ox\u00edgeno justo en la interfaz donde el metal se une al semiconductor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dispersan los portadores, aumentan la resistencia de contacto y elevan la altura de la barrera Schottky de maneras que limitan el dispositivo sin importar cu\u00e1n bueno sea el material a granel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La limpieza qu\u00edmica h\u00fameda elimina la contaminaci\u00f3n evidente, pero deja residuos superficiales y uniones colgantes. Estos se manifiestan como dispositivos que no cumplen con sus especificaciones y se degradan m\u00e1s r\u00e1pido de lo debido.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Qu\u00e9 hace realmente el plasma de RF de 13,56 MHz en la superficie<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un sistema de vac\u00edo de radiofrecuencia a 13,56 MHz genera plasma donde la densidad y la energ\u00eda i\u00f3nicas se pueden ajustar de forma independiente. Este control independiente es fundamental. Se puede ajustar la energ\u00eda suficiente para romper los enlaces contaminantes y desplazar las part\u00edculas superficiales sin penetrar la red lo suficiente como para causar da\u00f1os.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En la superficie ocurren dos cosas simult\u00e1neamente:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reacci\u00f3n qu\u00edmica: <\/strong>Las especies radicales atacan directamente los enlaces contaminantes, convirti\u00e9ndolos en subproductos vol\u00e1tiles que se extraen de la c\u00e1mara.<\/li>\n\n\n\n<li><strong>Pulverizaci\u00f3n f\u00edsica: <\/strong>El bombardeo de iones limpia lo que la qu\u00edmica no detecta, incluso en caracter\u00edsticas con una alta relaci\u00f3n de aspecto donde la limpieza h\u00fameda no puede llegar.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Para la limpieza de GaN, el plasma a base de nitr\u00f3geno o Ar\/H\u2082 elimina la contaminaci\u00f3n de \u00f3xido de galio y carbono a temperaturas muy inferiores a las que requieren los m\u00e9todos t\u00e9rmicos. El GaN no tolera bien las altas temperaturas, por lo que esto es m\u00e1s importante de lo que parece.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para el tratamiento con plasma de \u00f3xido de galio, el plasma de arg\u00f3n de baja potencia introduce vacantes controladas de ox\u00edgeno en la superficie de Ga\u2082O\u2083. Estas vacantes mejoran la conducci\u00f3n de electrones y aportan... <a href=\"https:\/\/www.keylinktech.com\/es\/application-solutions\/wettability-improvement-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">resistencia de contacto<\/a> abajo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El sistema de plasma al vac\u00edo VL-10-A de Keylink funciona a una frecuencia de radio de 13,56 MHz con un vac\u00edo de trabajo de entre 10 y 100 Pa, compatible con O\u2082, Ar, H\u2082, N\u2082, CF\u2084 y otros gases de proceso. La misma plataforma gestiona la preparaci\u00f3n de GaN y Ga\u2082O\u2083 sin necesidad de reconfigurar el hardware. <a href=\"https:\/\/www.keylinktech.com\/es\/plasma-surface-treatment-systems\/product-introduction\/plasma-surface-treatment-machine\/\" target=\"_blank\" rel=\"noreferrer noopener\">Gama completa de sistemas de plasma de vac\u00edo<\/a> Cubre configuraciones adicionales para diferentes requisitos de producci\u00f3n.<\/p>\n\n\n\n<style>\n  .product-card {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    height: 400px;\n    border: 1px solid #ddd;\n    border-radius: 10px;\n    overflow: hidden;\n    box-shadow: 0 4px 10px rgb(0 0 0 \/ 0.1);\n    max-width: 900px;\n    margin: 0 auto;\n    gap: 40px;\n    padding: 20px;\n    box-sizing: border-box;\n  }\n\n  .product-left,\n  .product-right {\n    flex: 1 1 50%;\n    display: flex;\n    flex-direction: column;\n    justify-content: center;\n    align-items: center;\n    text-align: center;\n  }\n\n  .product-left {\n    gap: 20px;\n  }\n\n  .product-title {\n    font-size: 26px;\n    font-weight: 700;\n    color: #158462;\n    margin: 0;\n  }\n\n  .product-button {\n    background-color: transparent;\n    color: #158462;\n    border: 2px solid #158462;\n    padding: 12px 24px;\n    font-size: 15px;\n    border-radius: 6px;\n    cursor: pointer;\n    transition: transform 0.3s ease;\n    text-decoration: none;\n    display: inline-block;\n  }\n\n  .product-button:hover {\n    transform: scale(1.1);\n  }\n\n  .product-right img {\n    max-width: 100%;\n    max-height: 360px;\n    object-fit: contain;\n    border-radius: 10px;\n  }\n\n  @media (max-width: 768px) {\n    .product-card {\n      flex-direction: column;\n      height: auto;\n      padding: 15px;\n      gap: 15px;\n    }\n\n    .product-left,\n    .product-right {\n      flex: none;\n      width: 100%;\n      text-align: center;\n    }\n\n    .product-right img {\n      max-height: 300px;\n      margin-bottom: 15px;\n    }\n\n    .product-left {\n      order: 2;\n      gap: 10px;\n      align-items: center;\n    }\n\n    .product-right {\n      order: 1;\n    }\n  }\n<\/style>\n\n<div class=\"product-card\">\n  <div class=\"product-right\">\n    <img decoding=\"async\" src=\"https:\/\/www.keylinktech.com\/wp-content\/uploads\/2025\/08\/VL-10-A-Vacuum-Plasma-Treatment-System-1.webp\" alt=\"VL-10-A\" \/>\n  <\/div>\n  <div class=\"product-left\">\n    <span class=\"product-title\"><strong>Sistema de tratamiento de plasma al vac\u00edo VL-10-A<\/strong><\/span>\n    <a href=\"https:\/\/www.keylinktech.com\/es\/producto\/vl-10-a-vaccuum-plasma-surface-treatment-system\/\" target=\"_blank\" class=\"product-button\">M\u00e1s detalles<\/a>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>El problema del procesamiento t\u00e9rmico de estos materiales<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El recocido t\u00e9rmico funciona bastante bien con el silicio. En el caso del GaN y el Ga\u2082O\u2083, genera m\u00e1s problemas de los que resuelve.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"wp-block-paragraph\">La eliminaci\u00f3n t\u00e9rmica de \u00f3xidos nativos del GaN requiere temperaturas superiores a 850 \u00b0C, m\u00e1s all\u00e1 del punto en el que el GaN comienza a descomponerse. El recocido t\u00e9rmico r\u00e1pido introduce tensi\u00f3n que difumina las interfaces de heteroestructura que hacen \u00fatiles a estos dispositivos. Los dopantes se difunden cuando no deber\u00edan.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"722\" height=\"627\" src=\"https:\/\/www.keylinktech.com\/wp-content\/uploads\/2026\/03\/AESXPS-Energy-Dispersive-Spectra-Comparison-Chart-of-GaN-and-Ga\u2082O\u2083.webp\" alt=\"\" class=\"wp-image-7712\" srcset=\"https:\/\/www.keylinktech.com\/wp-content\/uploads\/2026\/03\/AESXPS-Energy-Dispersive-Spectra-Comparison-Chart-of-GaN-and-Ga\u2082O\u2083.webp 722w, https:\/\/www.keylinktech.com\/wp-content\/uploads\/2026\/03\/AESXPS-Energy-Dispersive-Spectra-Comparison-Chart-of-GaN-and-Ga\u2082O\u2083-300x261.webp 300w, https:\/\/www.keylinktech.com\/wp-content\/uploads\/2026\/03\/AESXPS-Energy-Dispersive-Spectra-Comparison-Chart-of-GaN-and-Ga\u2082O\u2083-14x12.webp 14w, https:\/\/www.keylinktech.com\/wp-content\/uploads\/2026\/03\/AESXPS-Energy-Dispersive-Spectra-Comparison-Chart-of-GaN-and-Ga\u2082O\u2083-600x521.webp 600w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">El Ga\u2082O\u2083 tiene su propia sensibilidad. Su estequiometr\u00eda, espec\u00edficamente la concentraci\u00f3n de ox\u00edgeno vacante, determina su comportamiento el\u00e9ctrico. El procesamiento a alta temperatura no permite un control preciso sobre este aspecto.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El procesamiento de plasma a baja temperatura evita todo esto:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Los perfiles dopantes permanecen donde fueron establecidos porque el presupuesto t\u00e9rmico se mantiene bajo.<\/li>\n\n\n\n<li>Las interfaces de heteroestructura permanecen intactas sin que la expansi\u00f3n t\u00e9rmica diferencial genere tensi\u00f3n en las capas.<\/li>\n\n\n\n<li>Las nanoestructuras y las caracter\u00edsticas de alta relaci\u00f3n de aspecto sobreviven porque el proceso no requiere calor da\u00f1ino.<\/li>\n\n\n\n<li>La relaci\u00f3n Ga\/N en GaN se mantiene dentro del rango de 1,0 \u00b1 0,04 que requiere un comportamiento \u00f3hmico limpio.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Mejora del contacto \u00f3hmico y activaci\u00f3n de la superficie de la oblea<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Una limpieza adecuada de la superficie mejora el rendimiento del contacto. La mejora del contacto \u00f3hmico se debe a la eliminaci\u00f3n de los \u00f3xidos nativos y los estados superficiales que obligan a la corriente a atravesar las capas aislantes en lugar de una uni\u00f3n metal-semiconductor bien definida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Resultados clave de la preparaci\u00f3n de superficies con plasma:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Los dispositivos de Ga\u2082O\u2083 tratados con plasma de Ar\/Cl\u2082 muestran una resistividad de contacto reducida en m\u00e1s de un factor de dos en comparaci\u00f3n con las muestras no tratadas.<\/li>\n\n\n\n<li>Los HEMT de GaN tratados con plasma NH\u2083 remoto experimentan un aumento de la corriente de salida de 20 a 30%, con una mejora medible en la ca\u00edda de corriente y la fuga de compuerta.<\/li>\n\n\n\n<li>Los FET de Ga\u2082O\u2083 preparados con pretratamiento de plasma de Ar alcanzan especificaciones de alto rendimiento sin recocido posterior a la metalizaci\u00f3n.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.keylinktech.com\/es\/application-solutions\/activation\/\" target=\"_blank\" rel=\"noreferrer noopener\">Activaci\u00f3n de la superficie de la oblea<\/a> Tambi\u00e9n controla la estequiometr\u00eda antes de la metalizaci\u00f3n. En la fabricaci\u00f3n de diodos de barrera HEMT y Schottky, esa precisi\u00f3n en la interfaz suele ser lo que distingue a los dispositivos que superan la caracterizaci\u00f3n el\u00e9ctrica de los que no.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Keylink aplica los mismos principios de activaci\u00f3n en todas las industrias. Nuestro recurso sobre <a href=\"https:\/\/www.keylinktech.com\/es\/plasma-surface-technology\/process\/plasma-cleaning\/plasma-cleaning-improves-paint-adhesion-on-smartphone-housings\/\" target=\"_blank\" rel=\"noreferrer noopener\">Limpieza con plasma para la adhesi\u00f3n de la carcasa del tel\u00e9fono inteligente<\/a> Muestra c\u00f3mo la activaci\u00f3n de la superficie se traduce en resultados mensurables en diferentes materiales.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Qu\u00e9 significa esto para la confiabilidad a largo plazo de los semiconductores compuestos<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lograr que un dispositivo cumpla con las especificaciones en la prueba inicial es una cosa. Mantenerlo as\u00ed durante las etapas posteriores de fabricaci\u00f3n, el estr\u00e9s del empaque y los a\u00f1os de funcionamiento es otra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Las superficies preparadas con plasma son m\u00e1s lisas y qu\u00edmicamente m\u00e1s estables que las procesadas t\u00e9rmicamente. No desarrollan defectos durante el procesamiento posterior que degradan gradualmente el rendimiento el\u00e9ctrico. Para los dispositivos de GaN y Ga\u2082O\u2083 que se utilizan en inversores automotrices, estaciones base 5G y sistemas de conversi\u00f3n de energ\u00eda industrial, la fiabilidad de los semiconductores compuestos a lo largo del tiempo no es opcional. Es un requisito de cualificaci\u00f3n. Cont\u00e1ctenos para hablar sobre soluciones de plasma al vac\u00edo para su aplicaci\u00f3n de semiconductores compuestos.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-vivid-green-cyan-background-color has-background wp-element-button\" href=\"https:\/\/www.keylinktech.com\/es\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">Obtenga una cotizaci\u00f3n gratis<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Plasma cleaning semiconductor surfaces removes native oxides, carbon contamination, and dangling bonds from GaN and Ga\u2082O\u2083 at low temperatures, improving ohmic contact resistance and device reliability without the thermal damage that traditional processing causes. Why Surface Preparation Is the Bottleneck Nobody Talks About GaN and Ga\u2082O\u2083 get a lot of attention for the right reasons. [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":7711,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95],"tags":[],"class_list":["post-7709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Plasma Cleaning for GaN &amp; Ga2O3 Device Reliability | KEYLINK<\/title>\n<meta name=\"description\" content=\"Discover how plasma cleaning improves ohmic contact in GaN and Ga\u2082O\u2083 devices. 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