<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/Tfatk7wmnhs?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">
        Basics of DC bias effects and derating of multi-layer ceramic capacitors (MLCC). Acquiring impedance vs frequency curves for DC-biased ceramic capacitors via the two-port shunt-through measurement technique.
    </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">Intro</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:00</span><span class="chapters-text">Interactive Designs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:28</span><span class="chapters-text">MLCC Basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:52</span><span class="chapters-text">Derating Basics</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:41</span><span class="chapters-text">Issues with Derating</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:23</span><span class="chapters-text">Mitigation</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:27</span><span class="chapters-text">2-Port Shunt-Thru Measurement</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:01</span><span class="chapters-text">DC Block & Bias Injector</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:30</span><span class="chapters-text">Test Board</span></li>
            <li class="chapters-list-item"><span class="chapters-time">15:28</span><span class="chapters-text">Measurement Set-Up</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:50</span><span class="chapters-text">Bode Analyzer Software Set-Up</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:36</span><span class="chapters-text">Test Capacitor</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:27</span><span class="chapters-text">0V DC Bias</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:52</span><span class="chapters-text">4V DC Bias</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:12</span><span class="chapters-text">12V DC Bias</span></li>
            <li class="chapters-list-item"><span class="chapters-time">25:06</span><span class="chapters-text">Outro</span></li>
            
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://pms67.github.io/">Interactive Designs</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=GjEmwmAI27U&ab_channel=Phil%E2%80%99sLab">2-Port Shunt-Through Measurements</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=Zs3r5XI8FBY&ab_channel=Phil%E2%80%99sLab">Capacitor Measurement and Modelling</a></li>
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=kUruN6WBgSw&ab_channel=Phil%E2%80%99sLab">Capacitor Hardware Design Basics</a></li>
            
            <li class="links-list-item"><a href="https://fedevel.com/courses/advanced-digital-hardware-design">Advanced Digital Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses/mixed-signal-hardware-design-with-kicad">Mixed-signal Hardware Design course</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

Ceramic Capacitor DC Bias Effects & Measurement - Phil's Lab #152

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/lVyxlw3rixI" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Walking through one of the top PCB factories in China.
    </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">00:16</span><span class="chapters-text">Preparing panel</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:46</span><span class="chapters-text">Drilling</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:01</span><span class="chapters-text">Electroless plating</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:31</span><span class="chapters-text">Cleaning</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:04</span><span class="chapters-text">Photosensitive layer</span></li>
            <li class="chapters-list-item"><span class="chapters-time">08:54</span><span class="chapters-text">Electroplating</span></li>
            <li class="chapters-list-item"><span class="chapters-time">10:29</span><span class="chapters-text">Etching</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:36</span><span class="chapters-text">Solder mask</span></li>
            <li class="chapters-list-item"><span class="chapters-time">14:21</span><span class="chapters-text">Silkscreen</span></li>
            <li class="chapters-list-item"><span class="chapters-time">15:08</span><span class="chapters-text">PCB Testing</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:06</span><span class="chapters-text">Milling</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:37</span><span class="chapters-text">Inspection and packaging</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:39</span><span class="chapters-text">Making a multilayer PCB</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:04</span><span class="chapters-text">Baking PCBs</span></li>
            <li class="chapters-list-item"><span class="chapters-time">22:23</span><span class="chapters-text">X-Ray and alignment</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:28</span><span class="chapters-text">SMT Board assembly</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:30</span><span class="chapters-text">Through hole soldering</span></li>
            <li class="chapters-list-item"><span class="chapters-time">28:45</span><span class="chapters-text">Thank you for watching</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.pcbway.com/">Recorded in PCBWay</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Factory Tour in China - How PCB Is Made | PCBWay

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/T2WXlEwhI8k" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Talking to a chip designer. Thank you very much Atchi Reddy Chavva
    </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">00:46</span><span class="chapters-text">About Atchi</span></li>
            <li class="chapters-list-item"><span class="chapters-time">02:53</span><span class="chapters-text">What is inside of a chip</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:28</span><span class="chapters-text">JTAG, testing, software on chip</span></li>
            <li class="chapters-list-item"><span class="chapters-time">19:39</span><span class="chapters-text">What is on silicon and what are the challenges</span></li>
            <li class="chapters-list-item"><span class="chapters-time">32:34</span><span class="chapters-text">How transistors look and how they are connected</span></li>
            <li class="chapters-list-item"><span class="chapters-time">47:07</span><span class="chapters-text">Operating conditions</span></li>
            <li class="chapters-list-item"><span class="chapters-time">53:06</span><span class="chapters-text">ESD</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:04:38</span><span class="chapters-text">Designing a chip (example)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:17:05</span><span class="chapters-text">Autorouting</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:35:58</span><span class="chapters-text">Moore's Law</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.linkedin.com/in/atchireddy-chavva-23726a7/">Atchi's LinkedIn</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

What is Inside of Integrated Circuits? How Are Chips Designed?

<div class="entry-content">

    <div class="blog-content">
        Here is the PCB stackup what I normally start with + requirements for minimum VIA, track, clearance and impedances.
        <ul class="content-list">
            <li class="content-list-item"><span class="content-text"><b>12 Layers:</b>
                <ul class="content-list">
                    <li class="content-list-item"><span class="content-text">L1 – Signal</span></li>
                    <li class="content-list-item"><span class="content-text">L2 – GND</span></li>
                    <li class="content-list-item"><span class="content-text">L3 – Signal</span></li>
                    <li class="content-list-item"><span class="content-text">L4 – Signal</span></li>
                    <li class="content-list-item"><span class="content-text">L5 – GND</span></li>
                    <li class="content-list-item"><span class="content-text">L6 – Powers</span></li>
                    <li class="content-list-item"><span class="content-text">L7 – Powers</span></li>
                    <li class="content-list-item"><span class="content-text">L8 – GND</span></li>
                    <li class="content-list-item"><span class="content-text">L9 – Signal</span></li>
                    <li class="content-list-item"><span class="content-text">L10 – Signal</span></li>
                    <li class="content-list-item"><span class="content-text">L11 – GND</span></li>
                    <li class="content-list-item"><span class="content-text">L12 – Signal</span></li>
                </ul>       
            </span></li>
            <li class="content-list-item"><span class="content-text"><b>Required impedances</b>
                <ul class="content-list">
                    <li class="content-list-item"><span class="content-text">Single ended: 50 OHMs (all signal layers)</span></li>
                    <li class="content-list-item"><span class="content-text">Differential: 70, 90 and 100 OHMs (all signal layers)</span></li>
                </ul>       
            </span></li>
            <li class="content-list-item"><span class="content-text"><b>Other requirements</b>
                <ul class="content-list">
                    <li class="content-list-item"><span class="content-text">Minimum through-hole VIA: 0.45mm (pad) / 0.2mm (drill)</span></li>
                    <li class="content-list-item"><span class="content-text">Minimum track / clearance: 0.1 mm / 0.1 mm (more expensive PCB: 0.075mm / 0.075mm)</span></li>
                </ul>       
            </span></li>
            <li class="content-list-item"><span class="content-text"><b>If uVIAs are used</b>
                <ul class="content-list">
                    <li class="content-list-item"><span class="content-text">uVIA: 0.25mm (pad) / 0.1mm (laser drilled hole)</span></li>
                    <li class="content-list-item"><span class="content-text">buried VIA: 0.45mm (pad) / 0.2mm (drill)</span></li>
                </ul>       
            </span></li>
        </ul>
     </div>

    <div class="blog-content-text">
        I also found useful information about HDI stackups in this Mentor document: <a href="http://www.mentor.com/pcb/resources/overview/hdi-layer-stackups-for-large-dense-pcbs-723df14d-88f7-4e34-b47f-178d8c69ba1b" >HDI Layer Stackups for Large Dense PCBs</a><br><br>

        HDI PCB technology comparison (picture from the Mentor document)
    </div>

    
    <div class="blog-content-img-wrapper">
        <img src="https://assets.fedevel.com/blog/2019/10/3ef7e-stackup_example.jpg" alt="stackup_example" />
    </div>

    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="http://www.mentor.com/pcb/resources/overview/hdi-layer-stackups-for-large-dense-pcbs-723df14d-88f7-4e34-b47f-178d8c69ba1b" >HDI Layer Stackups for Large Dense PCBs</a></li>
        </ul>
    </div>  
</div>

PCB stackup example – minimum track, clearance, VIA …

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/yjFuTdVEd7Q" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Short tutorial which describes how to start using Cadence Allegro. Explains basic commands and how to:
        <ul class="content-list">
            <li class="content-list-item"><span class="content-text">highlight / de-highlight net</span></li>
            <li class="content-list-item"><span class="content-text">switch between layers</span></li>
            <li class="content-list-item"><span class="content-text">get information about a component</span></li>
            <li class="content-list-item"><span class="content-text">measure</span></li>
            <li class="content-list-item"><span class="content-text">move objects</span></li>
            <li class="content-list-item"><span class="content-text">delete</span></li>
            <li class="content-list-item"><span class="content-text">route</span></li>
            <li class="content-list-item"><span class="content-text">slide tracks …</span></li>
        </ul>
    </div>
</div>


How to start with Cadence Allegro – Very simple tutorial

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/gL1oSBMsLn8" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        This video shows how to modify polygon pour edges in Altium Designer.
    </div>
</div>


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Ceramic Capacitor DC Bias Effects & Measurement - Phil's Lab #152

Factory Tour in China - How PCB Is Made | PCBWay

What is Inside of Integrated Circuits? How Are Chips Designed?

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