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<title><![CDATA[EC21 Product Catalogs - 8 wafer probing]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/8 wafer probing.html]]></link><item>
<title><![CDATA[Polishing Material for Micro Devices]]></title><link><![CDATA[https://neomond1.en.ec21.com/Polishing-Material-for-Micro-Devices--11943427_11943699.html]]></link><description><![CDATA[8
Al2O3(8.0), BeO(5.9)
Index of refraction
2.417
Al2O3(1.6), SiO2(1.46)
Permittivity
ε
5.5
Teflon(2.1), Quartz(3.7)
Thermal conductivity
W/m.k
900~2000
Ag(427)
Specific heat
cal/K.g
0.124
CNF(0.07)
]]></description><pubDate><![CDATA[20241104]]></pubDate></item>
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<title><![CDATA[FR4 Base LED PCB Circuit Board 1oz Copper 3/3MIL Min Line]]></title><link><![CDATA[https://electronicpcbboard.en.ec21.com/FR4-Base-LED-PCB-Circuit--11895685_11895686.html]]></link><description><![CDATA[probe cards, wafer inspection systems, etc. Capability 　High precision prototypePCB bulk productionMax Layers1-28 layers1-14 layersMIN Line width(mil)3mil4milMIN Line space(mil)3mil4milMin via (mec]]></description><pubDate><![CDATA[20240131]]></pubDate></item>

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