Yield Divergence and Landed Unit Premium Mechanics across Multi-Factory Hardware Allocations
Splitting manufacturing allocations causes yield divergence from stencil, reflow, and ATE variances, driving landed cost premiums up through scrap and NRE.
Scrap Liability Floor
Meaning
Commercial liability limits define the financial threshold where an assembly partner or supplier becomes responsible for the cost of wasted production materials. This scrap liability floor protects manufacturing customers from excessive losses caused by yields falling below a pre-negotiated percentage. The mechanism applies to volume contract manufacturing agreements where silicon wafers and circuit boards are supplied by the customer.
It does not cover shipping damages or post-sale warranty returns, which are governed by separate logistics contracts.
Risk Allocation
Dividing the cost of defective parts encourages both the brand owner and the manufacturer to maintain high process control standards. The scrap liability floor specifies that the factory absorbs the material costs only after the defect rate exceeds the agreed baseline. This risk allocation keeps the supplier focused on machine calibration while preventing the customer from filing claims for minor, expected process losses that occur naturally during setup.
Financial Settlement
Accounting audits review the monthly production logs to calculate the actual volume of discarded components. This financial settlement determines the compensation paid to the brand owner for excessive waste during assembly runs. The calculations use raw material costs.
Yield Verification
Reliable defect logging at the inspection stations provides the empirical data needed to enforce the contract clauses. This yield verification relies on automated optical scans and manual reject logs to distinguish between supplier errors and defective raw materials. Clear classification prevents disagreements about which party is responsible for a failed batch.