<p dir="ltr" style="margin-top:0; margin-bottom:0;">No you can't.</p>
<p dir="ltr" style="margin-top:0; margin-bottom:0;">Vias will suck solder if it was paste reflow, but there's no way to solder the thermal pads from the other side of pcb using any kind of iron.</p>
<p dir="ltr" style="margin-top:0; margin-bottom:0;">Putting a drop of pste under the chip and then soldering around with iron is also risky, because during alignment the paste will smear all over the place and may short something.</p>
<p dir="ltr" style="margin-top:0; margin-bottom:0;">Since you plan to make slightly more than just a prototype, IMHO the best way to do it is to find a friend locally with p&p and oven, and do whole assembly there, not at JLC.</p>
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<p dir="ltr" style="margin-top:0; margin-bottom:0;">Roman </p><br><br>---- Użytkownik Mike Bryant napisał ----<br><br>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hmm<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I wonder if I put a via right under every pad (and lots under the large pads) I could flow solder through it ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> The SynthiMuse [mailto:<a href="mailto:synthimuse@gmail.com">synthimuse@gmail.com</a>]
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<b>Sent:</b> 18 February 2022 18:56<br>
<b>To:</b> Roman<br>
<b>Cc:</b> synth-diy@synth-diy org; Mike Bryant<br>
<b>Subject:</b> Re: [sdiy] ODP: Question for the self-assembly SMD-ers here<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Not sure what the footprint guidelines for this part are but I would arrange my footprint to have a few vias under the large pads and plan to apply hot air from below to flow solder paste on to all the pads. <o:p></o:p></p>
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<p class="MsoNormal">Gerry<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, 18 Feb 2022, 18:47 Roman, <<a href="mailto:modular@go2.pl">modular@go2.pl</a>> wrote:<o:p></o:p></p>
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<p style="margin:0cm;margin-bottom:.0001pt">Yes, it is doable with soldering iron. Sharp chisel or knife type, with flux gel and microscipe. No way of course to solder botom pads, so it will be poorly heatsinked. But I guess for a prototype you won't be driving
it full power anyway.<o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt">You might also try solder paste and hot air, but IMHO that's more risky and difficult.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt">I'm not inUK so can't help you, although I'd gladly do it for free.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt">Roman <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
---- Użytkownik Mike Bryant napisał ----<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Is it possible to assemble this product by hand ?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://www.infineon.com/cms/en/product/power/class-d-audio-amplifier-ic/integrated-class-d-audio-amplifier-ics/ma5332ms/?redirId=160809" target="_blank">https://www.infineon.com/cms/en/product/power/class-d-audio-amplifier-ic/integrated-class-d-audio-amplifier-ics/ma5332ms/?redirId=160809</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I can get a PCB made at JLCPCB with all the support circuitry on it and leave plenty of space for this IC, but not sure if it’s possible to assemble this part afterwards.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">It has a recommended stencil design in the datasheet which seems pretty tight for manual placement.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Alternatively anybody in the UK with whatever equipment is needed and willing to do it (paid for obviously) please email me.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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