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Advanced Circuits, Inc. (ACI)

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Multi-Layer PCB Stackup: .031 Finished Thickness

Printed circuit board layers PCB layer board .031 4 layers

Printed circuit board layers PCB layer board .031 6 layers

Prototype & Production PCBs to Fit Your Needs

Advanced Circuits builds Single-Sided through 10 layer printed circuit boards. We can provide prototype and production PCBs to fit your needs. The stackups pictured are our "typical" printed circuit board stackups for the layer count and finished thicknesses noted. However, these circuit board stackups are not "Guaranteed" unless you so specify in your files used when placing your order. Additionally, for these or any specific PCB stackup that you require, be sure to order as "Custom" and select "Controlled Dielectric." We process four layer PCBs with final thickness of 0.020", 0.031", 0.040", 0.047", 0.062", 0.093" and 0.125". You may select ½, 1 or 2 ounce inner layer copper foil for your printed circuit board.

While our 4 and 6 layer PCBs are limited to 16X22 inches the 8 layer is 12x18 and 10 layer maximum size is 10x16.

We have several inner layer cores available using Isola's FR406 materials – they include 5, 8, 9.5, 14, 18, 21, 28, 35, 39, 47, 59 and 93 mil cores.

Six layer boards are produced in thickness of 0.031", 0.040", 0.047", 0.062", 0.093" and 0.125" with the same inner layer foil options.

Both our eight and ten layer boards are available in finished thickness of 0.062", 0.093" and 0.125".

RoHS Compliant Multi-layer PCBs

Advanced Circuits can supply you with a RoHS compliant multi-layer PCB using laminate materials that can be matched up with the exposure to high temperatures during your assembly processes. It is important to keep in mind that some lead-free printed circuit boardassembly processes will require the laminate base material to withstand temperatures in excess of 260 degrees C or 500 degrees F for extended periods of time. To resolve this, we have high temperature laminates in our inventory so that our customers will be able to meet the higher temperature cycling requirements of some lead-free PCB assembly applications.

UL Approval for Processing High Thermal Capacity Materials

In high temperature materials we currently stock Isola’s 370HR in cores of 8, 10, 14, 22 and 39 mils. Advanced Circuits has UL approval for processing high thermal capacity materials manufactured by Isola and Nelco among others in producing your multi-layer board. These materials met the UL testing for 130°C maximum operating temperature, solder limits of 288°C for 20 seconds, 94-V0 flame rating and direct support of current carrying parts. Each of these laminate systems meets the minimum requirements of IPC 4101B. Individual manufacturer's material types may exhibit variations in electrical, thermal and physical properties. Normally a single manufacturer's material will be stocked for use.

Please get in touch with our team for more information on our multi-layer stackups and all of our printed circuit board manufacturing and assembly services. If you have specific questions please contact your Advanced Circuits sales representative.