Lapping Machines TRIZ Cases

Continuous slurry recycling maintains polish quality despite contamination risks from depleted additives.

Segmented platen holes manage slurry and gas flows to resolve inconsistent planarization caused by imprecise pressure control during polishing.

Dynamic vertical positioning of a membrane-based top ring minimizes substrate deformation and stress while ensuring reliable fluid sealing.

A homogeneous polishing pad integrates an eddy current detection region to monitor metal layer thickness during semiconductor chemical-mechanical polishing.

An olefin copolymer window block resists ultraviolet degradation while maintaining broad spectrum light transmission for accurate endpoint detection.

A polishing apparatus uses an optical switch to connect multiple sensor heads to a single spectrometer, enabling selective signal processing.

Rotational drive positions substrate holding pins to resolve precision complexity trade-offs in semiconductor manufacturing.

Grooves on the bottom surface of a CMP polishing pad top layer create isolated islands that improve removal rate uniformity at the wafer edge.

Segmented heating zones maintain constant radial temperature gradients across the polishing pad, resolving concave profiles while increasing productivity.

Transparent liquid flow cleans optical sensor surfaces in the CMP process, preventing abrasive grain adhesion that degrades film thickness measurement accuracy.

A polishing apparatus calculates the distance from the rotation axis to an optical sensor during swing arm movement.

Selective heating expands writer devices during lapping for precise planarization while protecting reader devices from thermal damage.

Synchronized wheel tip cleaning prevents foreign substance contamination that damages thin semiconductor substrates during precision grinding.

Jetting cleaning liquid onto the polishing surface enables efficient removal of used slurry, reducing consumption and operational costs.

Active pump control isolates the thermal system from plant back pressure, maintaining precise flow across wide ranges for consistent wafer polishing.