Heavy Copper PCB are printed circuit boards with 3 or more ounces of finished copper in the inner and/or outer layers.

        While there is no standard definition of Heavy Copper, it is generally accepted that if 3 ounces (oz) of copper or more is used on the internal and external layers of a printed circuit board, it is called a heavy copper PCB. Any circuit with a copper thickness of more than 4 oz per square foot (ft2) is also categorized as a heavy copper PCB. Extreme copper means 20 oz per ft2 to 200 oz per ft2.

      When the electronic device need high power or current through, Then we need consider heave copper to control the thermal on PCB,

      Thermal management is more important than ever today as electronics are used in demanding environments and operate at higher currents. Heavy copper PCBs (copper conductors 5 oz/ft² – 19 oz/ft² in inner and/or outer layers; sometimes defined as more than 4 oz per square foot (ft²)) can help conduct heat away from components so failure is greatly reduced. PCB manufacturers create durable wiring platforms with heavy copper. The resulting PC boards conduct electricity better and are more capable of withstanding thermal stress. These boards can be manufactured in a smaller footprint as they can contain multiple weights of copper on the same circuit layers.

     The benefits of heavy copper in PCBs include: 

     Reduction of thermal strain
     Better current conductivity
     Can survive repeated thermal cycling
     Smaller PCB size due to layering of copper
     Increased connector site strength

     JieTeng Electronics produce heavy copper for 20 years, 2 layer can be over 20 oz, inner multi-layer inner 4-6oz depends on the design , Welcome to send your design to sales@jtpcb.com.cn  , Get fast quote now !

20 oz Copper PCB

20 oz Copper PCB       2 Layer PCB Board     Soler Mask : Green     Legent :White     Surface :HASL-LF
General Guideline for Min Spacing by Copper Weight     Cu Weight               Min Recommended Space   between Copper Feature     20 oz                                      76mil ( 1.93mm)     JieTeng Electronics provide 20 oz Copper PCB manufacturing services, Send your PCB Files to sales@jtpcb.com.cn , Get Quote Now !

10 oz Copper PCB

10 Oz Copper PCB       2 Layer  PCB    Board Thickness: 2.0mm    Surface Process: ENIG    Solder Mask : Green    Legend :White
General Guideline for Min Spacing by Copper Weight       Cu Weight               Min Recommended Space   between Copper Feature           10 OZ                                 38mil ( 0.965mm )         JieTeng Electronics provide 20 OZ Copper PCB manufacturing services, Send your PCB Files to sales@jtpcb.com.cn , Get Quote Now !

4 Oz Copper PCB

     4 oz Copper PCB Is a heavy copper PCB,  Only 2 layer , still many PCB manufacturer can handle it ,if multilayer PCBs, inner layer is 4 oz, few PCB factory can fabricate it well . JieTeng Electronics have rich experience manufacturing 4 oz PCB whatever double side or Multi-layer PCB .

 

     4 oz heavy copper printed circuit PCB. Heavy copper Board does not have a set of definition in IPC standard. However, peopel generally use this name to identify a printed circuit board with copper conductors 3 oz/square feet- 10 oz/square feet in inner and/or outer layers.                          

     General Guideline for Min Spacing by Copper Weight

     Cu Weight               Min Recommended Space   between Copper Feature

          4 OZ                                 14mil ( 0.355mm )   

       If you want to produce 4 OZ PCB , Please send your design to sales@jtpcb.com.cn  , Get quote now !

3 oz Copper PCB

3 oz Copper PCB,  105Micron    ( 4.1339 Mil   ) , When a design use 3 oz copper , We can call it heavy copper PCB .   If base copper is 3oz , then completed copper will be 4oz for multi-layer , Inner 3 oz , the final will be 3oz,   When do 3 oz PCB manufacturing, We need take care the solder mask , because the thick  solder mask will flow .
General Guideline for Min Spacing by Copper Weight       Cu Weight               Min Recommended Space   between Copper Features            3 OZ                                  10 mil  (0.254 mm)             As a 20 years 3 Oz Copper PCB manufacturer, JieTeng Electronics have enough experience to manufacture your PCB board, Welcome to send your design to sales@jtpcb.com.cn  , Get quote now !

2 OZ Copper PCB

      2 OZ Copper PCB is better than 1 Oz , Now more and more PCB design is prefer to use 2oz for their design , 2 Oz cost higher than 1oz , but performance is better than 1oz pcb , current, Thermal control is much better.   Like  Power Charger ,  adapter , . 

       2 oz copper (70µm thick or 2.8 mils) — Standard internal layer copper thickness for internal layers on 3 oz finished copper selection. This is the standard starting copper thickness on the external layers for PCBs with the 3 oz finished copper weight selection.

       Also in the market , flexible PCB start to use 2oz PCB, the most common flex PCB copper weights are 0.5oz and 1oz, however, lighter copper weights are available. 2oz and greater copper weights are also available when manufacturing flexible PCBs but may not allow the required flexibility needed for the particular application that they will be used in.

 

     General Guideline for Min Spacing by Copper Weight

       Cu Weight               Min Recommended Space   between Copper Feature

            2 OZ                                 8 mil (0.203 mm)

      JieTeng Electronics is 2 oz Copper PCB manufacturer, We have  more than 10 years experience on 2 oz PCB manufacturing, Welcome to send your design to sales@jtpcb.com.cn  , We will give the best support to you . Get Quote now !

1 OZ Copper PCB

     1 OZ Copper PCB is basic thickness for Printed Circuit boards, Special for Rigid Board, Enough copper can ensure the PCB board working well, When your design request 1 copper , Please make sure it is enough 35 Micron (1 oz) .

     1 OZ Copper ( ~35µm thick or 1.4 mils) — Standard internal layer copper thickness for "standard construction product for 1 oz and 2 oz finished copper weight selections. This is also the standard starting copper weight on the external layers for PCBs with the 2 oz finished copper weight selection.

      General Guideline for Min Spacing by Copper Weight

        Cu Weight               Min Recommended Space   between Copper Feature

             1 OZ                              3.5 mil (0.089 mm)

       JieTeng Electronics supply thousands of square meters 1 OZ PCB per month,  If you need  1oz PCB Board manufacturing , Please send your design to sales@jtpcb.com.cn  , We will give the best quote you .