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As signal frequencies increase, the roughness of the copper surface (measured as Rzcap R sub z

What is IPC-4562?

IPC-4562 is the industry standard titled "Metal-Clad Base Materials for Rigid and Multilayer Printed Boards." It serves as the generic specification for copper-clad laminates and bonding materials. It replaces the older MIL-S-13949 standard and is widely recognized globally.

Note:

If you were looking for the IRS Form 4562 (Depreciation and Amortization), you can find the Official 2025 PDF here .

Manufacturing Types:

Type E for Electrodeposited and Type W for Wrought (rolled).

Foil Profile

: Defines surface roughness, such as Low Profile ( LP ) or Very Low Profile ( VLP ). 3. Key Classification and Quality Levels

Disclaimer: This article is for informational purposes. Standards and revisions change without notice; always verify the current revision with IPC. The author does not sell or distribute copyrighted standards.

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