8534.00.00.85 - Other, having a ceramic base

This HTS category, 8534.00.00.85, specifically classifies printed circuits that have a ceramic base. These printed circuits, also known as printed wiring boards (PWBs) or printed circuit boards (PCBs), are designed with a rigid or semi-rigid foundation made from ceramic material, onto which conductive pathways are etched or printed. The ceramic base provides electrical insulation and mechanical support, often offering advantages in terms of thermal resistance and dielectric properties compared to other base materials.

Distinguishing this category from its siblings, 8534.00.00.80 covers flexible printed circuits, which are characterized by their ability to bend or fold and are typically constructed on a flexible substrate. The other sibling, 8534.00.00.95, serves as a residual category for printed circuits not otherwise specified and without a ceramic base. Therefore, the defining characteristic for classification under 8534.00.00.85 is the presence of a ceramic substrate as the insulating base material.

As this node is a leaf node within the HTS database, there are no further subcategories to introduce. Classification within this specific HTS code is determined by the affirmative identification of a printed circuit that utilizes a ceramic base, differentiating it from flexible types or other printed circuits that do not possess this specific base material.