<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe
                class="youtube-player"
                src="https://www.youtube.com/embed/9B66SqaYCZs?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
                allowfullscreen="true"
                style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
                sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
                data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe></span>
    </div>
    <div class="blog-content">
        How the model of PCB used in high speed board simulations is created. Explained by Eric Bogatin. Thank you Eric.
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item">
                <span class="chapters-time">00:00</span><span class="chapters-text">What is this video about</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">00:29</span><span class="chapters-text">What are s-Parameters, Why we need them</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">05:51</span><span class="chapters-text">How S-Parameters models are created</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">08:02</span><span class="chapters-text">Including components in simulations with S-Parameters</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">14:44</span><span class="chapters-text">What is in S-Parameters file?</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">17:10</span><span class="chapters-text">Opening and explaining S-Parameters file</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">23:04</span><span class="chapters-text">S-Parameters ports explained – what they are</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">26:09</span><span class="chapters-text">Floating ports</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">30:23</span><span class="chapters-text">S-Parameters numbers explained</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">30:59</span><span class="chapters-text">What ports to use when using S-Parameters model</span>
            </li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.bethesignal.com/bogatin/3monthsubscription.php">Signal Integrity Academy (use FEDSI - 3 months free)</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>   
</div>

Must Know This to Understand High Speed PCB Layout Simulation | S-Parameters Explained, Eric Bogatin

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe
                class="youtube-player"
                src="https://www.youtube.com/embed/kdCJxdR7L_I?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
                allowfullscreen="true"
                style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
                sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
                data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe></span>
    </div>
    <div class="blog-content">
        Maybe you don’t need extra power layers in your PCB and using tracks for power distribution may be just ok. An interesting discussion with Eric Bogatin.
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item">
                <span class="chapters-time">00:00</span><span class="chapters-text">What is this video about</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">00:35</span><span class="chapters-text">Maximum current through a PCB track</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">03:40</span><span class="chapters-text">Stackups: SGSS, SGSG, GSSG (S – Signal, G – GND)</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">10:31</span><span class="chapters-text">Stackups SGGS vs SGPS (P – Power)</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">37:10</span><span class="chapters-text">Real examples – Measured noise</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">54:55</span><span class="chapters-text">Real examples – Emissions</span>
            </li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.bethesignal.com/bogatin/3monthsubscription.php">Signal Integrity Academy (use FEDSI - 3 months free)</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>   
</div>

Do You Really Need Power Planes? Are you sure? | Eric Bogatin

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe
                class="youtube-player"
                src="https://www.youtube.com/embed/yQIBS5xwvVQ?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
                allowfullscreen="true"
                style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
                sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
                data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe></span>
    </div>
    <div class="blog-content">
        Watch this animation to understand better how a signal is lost when travelling through a VIA.
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item">
                <span class="chapters-time">00:00</span><span class="chapters-text">What is this video about</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">01:14</span><span class="chapters-text">Example 1: Single ended, no stitching VIA</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">06:08</span><span class="chapters-text">Example 2: Single ended, 1 stitching VIA</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">10:17</span><span class="chapters-text">Example 3: Single ended, 2 and 6 stitching VIAs</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">12:43</span><span class="chapters-text">VIA Analyzer – How far we can place stitching VIAs and how many we need</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">16:50</span><span class="chapters-text">Post layout analyzes</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">21:14</span><span class="chapters-text">Changing VIA impedance</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">32:45</span><span class="chapters-text">Example 4: Differential pair, no stitching VIA</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">36:10</span><span class="chapters-text">Example 5: Differential pair, 2 stitching VIAs</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">48:18</span><span class="chapters-text">1x VIA + 1x stitching VIA return current</span>
            </li>
            <li class="chapters-list-item">
                <span class="chapters-time">55:20</span><span class="chapters-text">About the software we were using + Prices</span>
            </li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://youtu.be/vrt3lL5gEb0">Unexpected Currents On The Other Side Of GND Plane</a></li>
            <li class="links-list-item"><a href="https://www.linkedin.com/in/yuriy-shlepnev-7b39136/">Yuriy's Linkedin</a></li>
            <li class="links-list-item"><a href="https://www.simberian.com/">Yuriy's website</a></li>
        </ul>
    </div>   
</div>


NOT in the Copper! 3D Animation of a Signal Through a VIA | Yuriy Shlepnev

<div class="entry-content"> <p><strong><em>â€ť People donâ€™t buy what you do,&nbsp;people&nbsp;buy why you do it. â€ś</em></strong><br> Simon Sinek â€“ Start with Why: How Great Leaders Inspire Action</p> <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe class="youtube-player" src="https://www.youtube.com/embed/u4ZoJKF_VuA?version=3&amp;rel=1&amp;showsearch=0&amp;showinfo=1&amp;iv_load_policy=1&amp;fs=1&amp;hl=en&amp;autohide=2&amp;wmode=transparent" allowfullscreen="true" style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation" data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe></span></div> <p>Please LIKE, Share, ReTweet. Thank you.</p> </div>

What people buy?

<div class="entry-content"> <p>Here is the PCB stackup what I normally start with + requirements for minimum VIA, track,&nbsp;clearance&nbsp;and impedances.</p> <ul> <li><strong>12 Layers</strong> <ul> <li>L1 â€“ Signal</li> <li>L2 â€“ GND</li> <li>L3 â€“ Signal</li> <li>L4 â€“ Signal</li> <li>L5 â€“ GND</li> <li>L6 â€“ Powers</li> <li>L7 â€“ Powers</li> <li>L8 â€“ GND</li> <li>L9 â€“ Signal</li> <li>L10 â€“ Signal</li> <li>L11 â€“ GND</li> <li>L12 â€“ Signal</li> </ul> </li> <li><strong>Required impedances</strong> <ul> <li>Single ended: 50 OHMs (all signal layers)</li> <li>Differential: 70, 90 and 100 OHMs (all signal layers)</li> </ul> </li> <li><strong>Other requirements</strong> <ul> <li>minimum through-hole VIA: 0.45mm (pad) / 0.2mm (drill)</li> <li>minimum track / clearance: 0.1 mm / 0.1 mm<br> (more expensive PCB: 0.075mm / 0.075mm)</li> </ul> </li> <li><strong>If uVIAs are used</strong> <ul> <li>uVIA: 0.25mm (pad) / 0.1mm (laser drilled hole)</li> <li>buried VIA:&nbsp;0.45mm (pad) / 0.2mm (drill)</li> </ul> </li> </ul> <p>I also found&nbsp;useful&nbsp;information about HDI stackups in this Mentor document:<br> <a href="http://www.mentor.com/pcb/resources/overview/hdi-layer-stackups-for-large-dense-pcbs-723df14d-88f7-4e34-b47f-178d8c69ba1b" target="_blank">HDI Layer Stackups for Large Dense PCBs</a></p> <p><em>HDI PCB technology&nbsp;comparison (picture from the Mentor document)<br> <a href="http://www.fedevel.com/welldoneblog/wp-content/uploads/2011/05/stackup_example.jpg"><img loading="lazy" data-attachment-id="621" data-permalink="https://welldoneblog.fedevel.com/2011/05/03/pcb-stackup-example-minimum-track-clearance-via/stackup_example/" data-orig-file="https://welldoneblogfedevel.files.wordpress.com/2019/10/3ef7e-stackup_example.jpg" data-orig-size="439,401" data-comments-opened="1" data-image-meta="{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}" data-image-title="stackup_example" data-image-description="" data-image-caption="" data-medium-file="https://welldoneblogfedevel.files.wordpress.com/2019/10/3ef7e-stackup_example.jpg?w=300" data-large-file="https://welldoneblogfedevel.files.wordpress.com/2019/10/3ef7e-stackup_example.jpg?w=439" class="alignnone size-full wp-image-621" title="stackup_example" src="https://i0.wp.com/www.fedevel.com/welldoneblog/wp-content/uploads/2011/05/stackup_example.jpg" alt="" width="439" height="401"></a> </em></p> <p>Please LIKE, Share, ReTweet. Thank you.</p> </div>

PCB stackup example â€“ minimum track, clearance, VIA

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Must Know This to Understand High Speed PCB Layout Simulation | S-Parameters Explained, Eric Bogatin

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