Evaluating AC Coupling Capacitor Escape Vectors across High Speed Fixtures
High speed fixture escape vectors for AC coupling caps demand high frequency TDR de-embedding to catch low frequency probe blind spots.
Warranty Liability Allocation
Fiscal Distribution
The contractual division of costs associated with field failures between the board fabricator, the assembly house, the component supplier, and the final equipment manufacturer sets the financial stakes for quality control. Warranty liability allocation is usually decided during the negotiation of the master supply agreement, where each party accepts responsibility for specific types of defects. For example, the fabricator might pay for failures caused by inner layer shorts, while the assembler covers defects related to poor soldering.
Fault Determination
Assigning costs requires a rigorous failure analysis to find the root cause of a returned board. When a failure is found, the warranty liability allocation process uses microscopy to decide if the issue was a design flaw or a manufacturing error.
Boundary Condition
Liability is often capped at a percentage of the total contract value or a multiple of the unit price to protect smaller suppliers from ruinous claims. The warranty liability allocation stops applying if the end user has operated the equipment outside of its rated temperature or voltage range. This protection is necessary for maintaining a stable supply chain where risks are shared fairly based on the degree of control each partner has over the final product.