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<title><![CDATA[EC21 Product Catalogs - hole drilling]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/hole-drilling--10120399/1/hole drilling.html]]></link><item>
<title><![CDATA[PCB - Flex]]></title><link><![CDATA[https://ckmo1018.en.ec21.com/PCB-Flex--12069932_12069955.html]]></link><description><![CDATA[Holes
• PTH / Laser Via
• Drill size limitations exist due to the thin-film structure.
High-density implementation possible with laser vias. 
Surface Finish
• ENIG: Excellent flatness, solderab]]></description><pubDate><![CDATA[20260411]]></pubDate></item>
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<title><![CDATA[Bespoke Motherboard Solutions From China OEM/ODM Electronics Mother Board Drone Equipment Circuit Bo]]></title><link><![CDATA[https://sncpcb.en.ec21.com/Bespoke-Motherboard-Solutions-From-China--11979593_11981106.html]]></link><description><![CDATA[drilled hole size 0.25mmMin.line width 0.10mm(4mil)Min.line spaceing 0.10mm(4mil)Surface finish/treatment HASL/HASL lead free,Chemical tin,Chemical Gold,Immersion gold Inmersion Silver/Gold,Osp,Gold ]]></description><pubDate><![CDATA[20240806]]></pubDate></item>
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<title><![CDATA[OEM PCBA Manufacturer Customize]]></title><link><![CDATA[https://idsystemkr.en.ec21.com/OEM-PCBA-Manufacturer-Customize--11944840_11944841.html]]></link><description><![CDATA[PCB/PCBA &amp; SMT
(1) Consumer Electronic Device
(2) 2/4/6/8 layers or higher
(3) Special Production Process: Hole by Etching, Button Plate, Laser Drill, Build-up
(4) High Quality Control System, Quick ]]></description><pubDate><![CDATA[20240530]]></pubDate></item>
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<title><![CDATA[Single Cu-base PCB]]></title><link><![CDATA[https://pcbpcbaseller.en.ec21.com/Single-Cu-base-PCB--10961296_11944082.html]]></link><description><![CDATA[drill hole diameter PCB (PTH): ≥ 0,2 mm
●Minimum drill hole diameter PCB (NPTH): ≥ 1,0 mm
●Minimum drill hole diameter for aluminium: ≥ 1,0mm
●Drill hole/drill hole spacing: &gt; 1,2 mm
●M]]></description><pubDate><![CDATA[20240528]]></pubDate></item>
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<title><![CDATA[ODM Gold Finger PCB Board Fabrication High TG FR4 PCBA for Industrial Field]]></title><link><![CDATA[https://pcbboardfabrication.en.ec21.com/ODM-Gold-Finger-PCB-Board--11776872_11776873.html]]></link><description><![CDATA[drilled hole size0.25mmMin.line width0.075mm(3mil)Min.line spaceing0.075mm(3mil)Surface finish/treatmentElectroless/immersion gold/ENIG/Immersion silver/OSPCopper thickness0.5 oz - 8.0 ozSolder mask ]]></description><pubDate><![CDATA[20230426]]></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[drilling)Board thickness≤1.2mm0.15mm0.2mmBoard thickness≤2.5mm0.2mm0.3mmBoard thickness＞2.5mmAspect Ration≤13:1Aspect Ration≤13:1Aspect RationAspect Ration≤13:1Aspect Ration≤13:1Board t]]></description><pubDate><![CDATA[20240131]]></pubDate></item>
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<title><![CDATA[Printed Circuit Board]]></title><link><![CDATA[https://greenstone23.en.ec21.com/Printed-Circuit-Board--11778431_11889762.html]]></link><description><![CDATA[Drilling the PCB 
Electroless copper deposition
Image teh outer layer
Plating
Etch the outter layer
AOI
Solder mask
Surface finish
Profile
Electrical test
Finial inspection
Packing
We provide printed]]></description><pubDate><![CDATA[20240117]]></pubDate></item>
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<title><![CDATA[Fast Supply Electric Circuit Board Assembly Manufacturer]]></title><link><![CDATA[https://cttpcb.en.ec21.com/Fast-Supply-Electric-Circuit-Board--10919275_11050449.html]]></link><description><![CDATA[drilling and metallization in the hole to connect the inside of each layer. HDI boards are generally manufactured by a laminated method. The more times the layers are stacked, the higher technical gr]]></description><pubDate><![CDATA[20231206]]></pubDate></item>
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<title><![CDATA[Customized PCBA Prototype PCBA Assembly]]></title><link><![CDATA[https://pennydlo2015.en.ec21.com/Customized-PCBA-Prototype-PCBA-Assembly--11303710_11304612.html]]></link><description><![CDATA[Halogen Free, FR-1, FR-2, Aluminum
2. Board thickness:0.2mm-7mm 
3. Max.finished board side:500mm*500mm 
4. Min.drilled hole:0.25mm
5. Min.line width:0.075mm(3mil) 
6. Copper thickness:0.5-4.0oz
]]></description><pubDate><![CDATA[20201205]]></pubDate></item>
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<title><![CDATA[Smart Electronics PCBA Prototype PCB Assembly Manufacturing Customized Printed Circuit Board]]></title><link><![CDATA[https://ruomeipcb02.en.ec21.com/Smart-Electronics-PCBA-Prototype-PCB--11819316_11819378.html]]></link><description><![CDATA[width/gap 3.5/4mil(laser drill)Min. hole size 0.15mm(mechanical drill)/4mil(laser drill)Min. Annlar Ring 4milMax Copper thickness 6OZMin Solder Mask Bridge 0.08mmPlugging Vias capability 0.2-0.8mm]]></description><pubDate><![CDATA[20230713]]></pubDate></item>
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<title><![CDATA[Golden Triangle HDI PCB Capabilities]]></title><link><![CDATA[https://gtpcba.en.ec21.com/Golden-Triangle-HDI-PCB-Capabilities--11805203_11836262.html]]></link><description><![CDATA[drilling process is then used to create the vias, which are tiny holes that help to connect the layers of the board. Finally, the solder mask is added to protect the board from oxidation and to make ]]></description><pubDate><![CDATA[20230821]]></pubDate></item>
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<title><![CDATA[Half Hole &amp; Through Hole PCB]]></title><link><![CDATA[https://hhcircuits.en.ec21.com/Half-Hole-Through--11798970_11798971.html]]></link><description><![CDATA[drilling (drilling, gong groove-plate surface plating-external Optical imaging-pattern plating-co-drying-half-hole processing-film stripping, etching, tin stripping-other processes-shape
Main Points ]]></description><pubDate><![CDATA[20230530]]></pubDate></item>

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