Blind Buried Circuits Offers Thick Copper PCB Manufacturing for High-Current Applications

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Blind Buried Circuits Inc., a manufacturer of rigid, flex rigid, and multilayer printed circuit boards, provides thick copper PCB manufacturing and assembly capabilities for high-current and high-power electronics applications. Thick copper PCBs are manufactured with higher copper weight to accommodate high-current printed circuit board designs. While standard PCBs are made at 1 to 2 Oz copper weight, thick copper PCBs are designed to support mechanical stability and heat flow in industrial electronics applications. Blind Buried Circuits manufactures thick copper PCBs up to 12 Oz thick.

The company’s manufacturing capabilities include PCB fabrication from 1 layer up to 50 layers using materials including Arlon, Taconic, Nelco, Isola, and Rogers. Board thickness ranges from 0.011" to 0.393", with copper thickness up to 12 Oz. Surface finishes include leaded HASL, lead-free HASL, ENIG, immersion silver, immersion tin, OSP, ENEPIG, and bare copper.

Blind Buried Circuits also offers solder mask colors in green, blue, white, red, yellow, and black, along with silkscreen colors in white, yellow, and black. Manufacturing lead times range from five days to two to three weeks, with no minimum order quantity requirement. The company also provides deliveries across the United States and Canada.

The company’s thick copper PCB manufacturing process is designed to maintain trace width and copper layer precision while reducing production lead time. Manufacturing specifications include outer layer copper thickness up to 16 Oz and inner layer copper thickness up to 10 Oz, with trace and space capabilities down to 1.5 mils for advanced inner layers.

Blind Buried Circuits stated that thicker copper improves heat dissipation, electrical conductivity, and reliability in high-power electronics applications. Applications for thick copper PCBs include power and amplifier modules, high-temperature products, automotive electrical junction boxes, high-power distribution circuits, radar systems, monitoring systems, electric battery chargers, and power electronic appliances.

The company also highlighted the use of thick copper PCBs in power-intensive systems such as DC-DC converters and electric transformers, where copper layers and raw materials support mechanical stability under high current loads.

Blind Buried Circuits said its engineers focus on optimizing copper trace layouts to handle large currents while minimizing resistance and heat buildup in high-current applications.

Click here to learn more about the thick copper PCB manufacturing and assembly services.