A publicly listed semiconductor manufacturer in Bayan Lepas, Penang was experiencing declining yield rates from limitations of conventional AOI inspection software. PixeVision augmented their existing hardware with See.AI™ — lifting yield from 90% to 98.5% without replacing a single machine and hardware.
LOCATION
Bayan Lepas, Penang
INDUSTRY
Semiconductor / OSAT
SOLUTION
AOI Inspection Software
CLIENT
Semicon Client A (Confidential)
The manufacturer operated high-volume OSAT production lines relying on conventional AOI machines running traditional rule-based inspection software. As product complexity and throughput demands increased, the fixed-threshold inspection logic could no longer keep pace.
Rule-based AOI software works by comparing components against predefined pixel tolerances. When production variability — subtle die orientation shifts, minor surface variation, lighting inconsistency — fell outside these rigid thresholds, good components were incorrectly flagged as defective. The result was a chronic over-rejection problem driving yield rates down to 90%.
The hardware was functioning correctly. The inspection intelligence driving it was not. Replacing machines would not have solved the problem — the client needed smarter software, not newer equipment.
Rather than replacing the client’s AOI machines, PixeVision deployed See.AI™ as an AI software layer running directly on the existing hardware. See.AI™ replaced the conventional rule-based inspection logic with a deep learning model trained on the client’s own production data — learning what a genuine defect looks like, rather than relying on brittle pixel thresholds that generate false rejections.
See.AI™ receives the live image stream directly from the client's existing AOI cameras — no hardware changes, no downtime required.
A deep learning model trained on the client's own production data evaluates each component — replacing rule-based thresholds with intelligent, data-driven decisions.
See.AI™ distinguishes genuine defects from acceptable variation — eliminating the over-rejection that was causing good components to be discarded.
Every inspection decision is logged in real time — providing shifts with immediate, granular visibility into yield rates, defect trends, and line performance.


Deploying See.AI™ as a software upgrade gave the client inspection accuracy that conventional rule-based AOI logic simply cannot achieve — without touching a single piece of hardware.
Yield improved from 90% to 98.5% within 48 hours of deployment — good components that were previously over-rejected are now correctly passed, recovering significant lost revenue per production cycle.
Manual secondary inspection — required to re-check components flagged by the legacy software — was significantly reduced. Skilled inspection staff were freed for higher-value quality assurance tasks.
No AOI machines were replaced. The problem was the inspection software, not the hardware — and See.AI™ solved it entirely through a software deployment, extending the usable life of existing equipment.
Baseline yield limited by rule-based inspection software generating high false-rejection rates on good components.
Stabilised yield rate — entire production line output quality restored.
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