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    <title>RayFan Semi — Insights</title>
    <link>https://rayfansemi.com/</link>
    <description>Engineering notes on specialty semiconductor equipment selection.</description>
    <language>en</language>
    <item>
      <title><![CDATA[12 inputs to define before starting a Si DRIE project]]></title>
      <link>https://rayfansemi.com/insights/si-drie-12-inputs/</link>
      <guid>https://rayfansemi.com/insights/si-drie-12-inputs/</guid>
      <pubDate>Thu, 20 Aug 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[A practical checklist of the twelve application inputs that determine whether a deep silicon etch project succeeds — before any platform discussion begins.]]></description>
      <category><![CDATA[Process Selection]]></category>
    </item>
    <item>
      <title><![CDATA[How to define success for a deep silicon etch demo]]></title>
      <link>https://rayfansemi.com/insights/drie-demo-success/</link>
      <guid>https://rayfansemi.com/insights/drie-demo-success/</guid>
      <pubDate>Tue, 18 Aug 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[A demo is an experiment, not a performance. How to agree success metrics, sample plans and repeatability requirements before any wafer is etched.]]></description>
      <category><![CDATA[Demo Methodology]]></category>
    </item>
    <item>
      <title><![CDATA[Vertical vs horizontal batch furnaces: a selection framework for oxidation, diffusion and LPCVD]]></title>
      <link>https://rayfansemi.com/insights/vertical-vs-horizontal-furnaces/</link>
      <guid>https://rayfansemi.com/insights/vertical-vs-horizontal-furnaces/</guid>
      <pubDate>Sat, 15 Aug 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[Choosing between vertical and horizontal batch furnaces for oxidation, diffusion, anneal and LPCVD: uniformity, contamination and cost per pass.]]></description>
      <category><![CDATA[Thermal Processing]]></category>
    </item>
    <item>
      <title><![CDATA[Specifying a PECVD film: stress, hydrogen, coverage and thermal budget]]></title>
      <link>https://rayfansemi.com/insights/pecvd-film-selection/</link>
      <guid>https://rayfansemi.com/insights/pecvd-film-selection/</guid>
      <pubDate>Mon, 10 Aug 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[How to write a PECVD dielectric specification a supplier can hit: stress targets, uniformity, step coverage and the thermal budget behind them.]]></description>
      <category><![CDATA[Process Selection]]></category>
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