GreensTone is an electronic contract manufacturing company providing one-stop electronic assembly services.Our services include PCB fabrication, parts procurement, PCB assembly,Mechanical fabrication, Wed, 30 Sep 2026 16:59:00 +0200 http://greenstone.onlc.fr/4-Blog china heavy copper pcb heavy copper pcb manufacturers   Thick copper PCBs are characterized by being covered with copper thicknesses from 3oz to 400 µm. These PCBs are used for high current outputs and high thermal management. The heavy copper allows PCB for high currents load and encourages heat radiation.   PCBs with ... Wed, 30 Sep 2026 16:59:00 +0200 http://greenstone.onlc.fr/4-Blog/p6abc7b0560905-Heavy-Copper-PCB.html 6abc7b0560905 https://static.onlc.eu/greenstoneNDD/optimised/179073716460.jpg Normally FR4 Tg is 130-140°, moderate Tg is over 150-160 °, High-Tg is greater than 170°.The higher of Tg, the better performance of PCB moisture resistance, heat resistance, chemical resistance, stability and other characteristics.   Glass Transition Temperature is referred to as Tg, and FR4 is a designation for a particular type ... Wed, 30 Sep 2026 16:59:00 +0200 http://greenstone.onlc.fr/4-Blog/p6abc7b1ef2c3d-High-TG-PCB.html 6abc7b1ef2c3d https://static.onlc.eu/greenstoneNDD/optimised/179073719147.jpg   FR4 is the most important material in the China electronic pcb assembly. Electric engineers and technicians normally design PCB boards with the FR4 PCB assembly. There is a big demand for FR4. FR4 printed circuit board is normal and easy to design. The FR4 PCBs are popular as they are ... Wed, 30 Sep 2026 16:58:00 +0200 http://greenstone.onlc.fr/4-Blog/p6abc7acca1c91-FR4-PCB.html 6abc7acca1c91 https://static.onlc.eu/greenstoneNDD/optimised/179073711098.jpg   FR4 is a term commonly used in printed circuit board (PCB) fabrication, referring to a flame-resistant glass-reinforced thermoset epoxy laminate material. It is widely used in the electronics industry due to its crucial properties and materials, which enhance its electrical and thermal performance. FR4 material boasts a low dielectric constant, ... Wed, 30 Sep 2026 16:58:00 +0200 http://greenstone.onlc.fr/4-Blog/p6abc7aeb4eba2-FR4-PCB-Assembly-Properties-Materials-an.html 6abc7aeb4eba2 https://static.onlc.eu/greenstoneNDD/optimised/179073713738.jpg