{"id":391317,"date":"2024-10-24T22:44:03","date_gmt":"2024-10-24T22:44:03","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/"},"modified":"2024-10-24T22:44:03","modified_gmt":"2024-10-24T22:44:03","slug":"391317","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/","title":{"rendered":"Reply To: InGaAs\/InAlAs APD &#8211; Unable to reach avalanche breakdown"},"content":{"rendered":"<p>&lt;p&gt;Hi &lt;span class=&#8221;bbp-author-name&#8221;&gt;Sathursan, sorry to reply you late.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span class=&#8221;bbp-author-name&#8221;&gt;As long as you can simulate to &nbsp;&nbsp;15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. Please this converged file at &nbsp;15.625 mV as continuation file, and begin to simulate from here to some other voltage with smaller voltage step size. It may break again before reaching 25V. You will need to repeat this procedure with smaller step size until you reach 25V or close to it.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span class=&#8221;bbp-author-name&#8221;&gt;https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360034918633-CHARGE-solver-Simulation-object&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-391317","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi Sathursan, sorry to reply you late.As long as you can simulate to 15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. Please this converged file\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: InGaAs\/InAlAs APD \u2013 Unable to reach avalanche breakdown | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi Sathursan, sorry to reply you late.As long as you can simulate to 15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. Please this converged file\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-10-24T22:44:03+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-10-24T22:44:03+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: InGaAs\/InAlAs APD \u2013 Unable to reach avalanche breakdown | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi Sathursan, sorry to reply you late.As long as you can simulate to 15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. Please this converged file\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/391317\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/391317\\\/#listItem\",\"name\":\"Reply To: InGaAs\\\/InAlAs APD &#8211; Unable to reach avalanche breakdown\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/391317\\\/#listItem\",\"position\":2,\"name\":\"Reply To: InGaAs\\\/InAlAs APD &#8211; Unable to reach avalanche breakdown\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/391317\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/391317\\\/\",\"name\":\"Reply To: InGaAs\\\/InAlAs APD \\u2013 Unable to reach avalanche breakdown | Ansys Learning Forum\",\"description\":\"Hi Sathursan, sorry to reply you late.As long as you can simulate to 15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. 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The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. Please this converged file","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/#listItem","name":"Reply To: InGaAs\/InAlAs APD &#8211; Unable to reach avalanche breakdown"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/#listItem","position":2,"name":"Reply To: InGaAs\/InAlAs APD &#8211; Unable to reach avalanche breakdown","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/","name":"Reply To: InGaAs\/InAlAs APD \u2013 Unable to reach avalanche breakdown | Ansys Learning Forum","description":"Hi Sathursan, sorry to reply you late.As long as you can simulate to 15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. Please this converged file","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/#breadcrumblist"},"datePublished":"2024-10-24T22:44:03+00:00","dateModified":"2024-10-24T22:44:03+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: InGaAs\/InAlAs APD \u2013 Unable to reach avalanche breakdown | Ansys Learning Forum","og:description":"Hi Sathursan, sorry to reply you late.As long as you can simulate to 15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. Please this converged file","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/391317\/","article:published_time":"2024-10-24T22:44:03+00:00","article:modified_time":"2024-10-24T22:44:03+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: InGaAs\/InAlAs APD \u2013 Unable to reach avalanche breakdown | Ansys Learning Forum","twitter:description":"Hi Sathursan, sorry to reply you late.As long as you can simulate to 15.625 mV, it indicates that the settings are good. The reason to breakdown here is likely due to the sharp change of IV curve. eg, the gradient is too large to converge with voltage step size. 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