English
English French German Portuguese Spanish Russian Japanese Korean Arabic Irish Greek Turkish Italian Danish Romanian Indonesian Czech Afrikaans Swedish Polish Basque Catalan Esperanto Hindi Lao Albanian Amharic Armenian Azerbaijani Belarusian Bengali Bosnian Bulgarian Cebuano Chichewa Corsican Croatian Dutch Estonian Filipino Finnish Frisian Galician Georgian Gujarati Haitian Hausa Hawaiian Hebrew Hmong Hungarian Icelandic Igbo Javanese Kannada Kazakh Khmer Kurdish Kyrgyz Latin Latvian Lithuanian Luxembou.. Macedonian Malagasy Malay Malayalam Maltese Maori Marathi Mongolian Burmese Nepali Norwegian Pashto Persian Punjabi Serbian Sesotho Sinhala Slovak Slovenian Somali Samoan Scots Gaelic Shona Sindhi Sundanese Swahili Tajik Tamil Telugu Thai Ukrainian Urdu Uzbek Vietnamese Welsh Xhosa Yiddish Yoruba Zulu Kinyarwanda Tatar Oriya Turkmen Uyghur
Leave Your Message
Products Categories
    Featured Products
    01
    Heavy Copper Printed Circuit Boards
    Heavy Copper Printed Circuit Boards

    Heavy Copper Printed Circuit Boards

    The heavy copper PCB segment is a growing part of our production. In order to support this important segment, we are developing long-standing relationships with several factories which are carefully selected in our sourcing process.

      Contact us
      product details

      What is a heavy copper PCB?

      Double-sided printed boards are usually made of epoxy glass cloth copper foil. It is mainly used for communication electronics with high performance requirements Equipment, advanced instruments and electronic computers, etc.


      The production process of double-sided boards is generally divided into several methods, including process wire method, hole blocking method, masking method, and graphic electroplating etching method.

      Heavy copper PCBs are defined as boards with:

      ● Copper thickness > 2 oz (70 μm)
      ● Preferred term over “thick” copper PCB

      Common heavy copper weights:

      ● 2 oz (70 μm)
      ● 3 oz (105 μm)
      ● 4 oz (140 μm)
      ● 6 oz (210 μm)
      ● 8 oz (280 μm)
      ● 10 oz (350 μm)

      Other key attributes:

      ● Typically compatible with FR-4 dielectric
      ● Mostly used for inner layers rather than outer layers
      ● Plated through holes (PTHs) often need to be plugged/filled
      ● Requires careful registration and lamination

      Heavy copper inner layers improve thermal performance and current carrying capacity useful for applications like LED lighting, power electronics, and electric vehicle inverters.
      It is a PCB made with two or more conductive copper layers. The conductive foil appears to be thicker than on standard PCBs. The different inner layers are processed in pairs (on a core) and then bonded together using prepreg as the insulating layer. The layers are then placed in such a way that both sides of the PCB can be used to mount components with additional tracking/electrical connections on the inside of the board. Vias are used as a source of the electrical connections between the different layers of the PCB.
      More and more products are using heavy copper PCBs, for example EV-chargers, high current systems and power storage systems.

      Feature

      AREX´s technical specification

      Number of layers

      4 – 22 layers standard, 30 layers advanced, 40 layers prototype, much depending on copper thickness.

      Technology highlights

      Multiple layers of epoxy glass fiber bonded together with multiple layers of copper of varying thicknesses.

      Materials

      High performance FR4, halogen-free FR4

      Copper weights (finished)

      18-210µm, advanced 1050µm / 30 Oz

      Minimum track and gap

       0,075mm / 0,075mm (very much depending on copper thickness)

      PCB thickness

      0.40mm – 7.0mm, Min thickness depending on number of layers and copper thickness

      Maxmimum dimensions

      580mm x 1080mm, advanced 610mm x 1400mm

      Surface finishes available

      HASL (SnPb), LF HASL (SnNiCu), OSP, ENIG, Immersion Tin, Immersion Silver, Electrolytic gold, Gold fingers (HASL / LF HASL not recommended)

      Minimum mechanical drill

      0.20mm