Isola 370HR glass/epoxy laminates

Isola USA Corp. · Material properties and interface engineering

Purpose: Compare glass/epoxy materials and actual stacks in CAF-leakage investigations, correlating spacing, processing and biased-humidity results.
Technical approach: FR-4 epoxy/E-glass laminate and prepreg support multilayer PWB construction with selected glass, resin and copper.
Scope of use: Confirm board/process compatibility; multilayer-PWB use does not establish applicability to every ABF/RDL package stack.
Limitations and open questions: These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitations
Supplier CAF resistance is not board-specific qualification or a guarantee against filament growth. Typical properties and general material approvals do not qualify your spacing/stack/cycles.
What to prepare
BLNKK suggests preparing glass/resin/copper details, lamination/drilling/reflow history, spacing and failure locations. Retain absorption, bias/humidity and insulation controls with traceable coupons.
Confirm with the supplier
Confirm construction, current specifications and available CAF-test conditions/results. Agree on spacing, fabrication, preconditioning and biased-humidity validation; separate material specifications from board acceptance.
Public evidence: Isola lists CAF resistance and typical properties, not validation at your spacing and bias/humidity conditions.

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