The WaferEtch® Platform Innovative Silicon &Metal Etch Solution

Innovative Silicon & Metal Etch Solution

The WaferEtch® Platform Lowest Cost of Ownership > High throughput > On-Board chemical mixing instead of expensive pre-mixed chemistry > Increased savings with up to 99.5% chemical recapture

Excellent Process Control > Integrated silicon thickness measurement and Profile Match Technology™

> Improved fine-feature etch process control with instant quench > Arm movement compensation for radial wafer non-uniformities

Chemical Management NoEfficient Cross-Contamination chemistries possible in a > Multiple WaferEtch Collection Drain captures, > The

single chamber recirculates, and isolates multiple chemistries > the No cross-contamination in same chamber.

> Each chemistry is isolated with its own dispense arm.

Veeco’s single wafer wet etch technology enables uniform selective etching on multiple process levels, free of cross-contamination. Etch uniformity better than 1% is routine. Whether for advanced packaging or BEOL Veeco’s single wafer wetsystems etch technology enables uniformyield selective etching on lowest multiple process levels,cost. free wet etches, WaterEtch accomplish the highest process at the manufacturing of cross-contamination. better than 1% isbackside, routine. Whether for advanced packagingsystems or BEOL When etch structures orEtch filmsuniformity are needed in the active, and/or bevel areas, WaferEtch wet systems accomplish the highest yield process at the lowest manufacturing cost. are aetches, proven WaterEtch technical solution. When etch structures or films are needed in the active, backside, and/or bevel areas, WaferEtch systems are a proven technical solution.

Unique TSV Reveal Process For low-cost TSV reveal processing, the WaferEtch tool is specifically configured to address wafer thinning to Unique TSV Reveal Process reveal the interconnects. This has become a critical step in the manufacture of 2.5D and 3D-IC packaging for

For low-cost TSVand reveal WaferEtch tool isfour specifically configured to address thinning to replaces process control costprocessing, reduction. the WaferEtch tools required for the dry-etchwafer approach: CMP, reveal the interconnects. Thismeasurement has become aand critical in theIntegration manufacture 2.5D andmeasurement 3D-IC packaging for plasma measurement and waferstep cleaning. etch, silicon thickness wafer cleaning. of aofthickness sensor process control and Match cost reduction. WaferEtch replaces four toolscontrol required the dry-etch approach: CMP, Profile Technology in the etch system provides closed-loop control of the waferprocess. etching and Veeco's Veeco's Profile Match Technology provides closed-loop offorthe wafer etching plasma etch, silicon thickness and wafer cleaning. Integration ofmore a thickness measurement sensor process. WaferEtch achieves ameasurement significant reduction CoO,making making 3D economically feasible. WaferEtch achieves a significant reduction in in CoO, 3D TSVs TSVs more economically feasible. and Veeco's Profile Match Technology in the etch system provides closed-loop control of the wafer etching process. WaferEtch achieves a significant reduction in CoO, making 3D TSVs more economically feasible.

TOP VIEW AFTER TSVs REVEALED

SEM CROSS-SECTION AFTER TSVs REVEALED

TOP VIEW AFTER TSVs REVEALED

SEM CROSS-SECTION AFTER TSVs REVEALED

SILICON THICKNESS POST GRIND VS. POST WET ETCH, WITH TSV DEPTH DISPLAYED

Additional Etch Processes, Ideal for WaferEtch

SILICON THICKNESS POST GRIND VS. POST WET ETCH, WITH TSV DEPTH DISPLAYED

Additional Etch Processes, Ideal forIdeal WaferEtch Additional Etch Processes, for WaferEtch UBM/RDL Wafer Thinning and Stress Relief UBM/RDL Etch Wafer Thinning and Stress Relief Relief UBM/RDL Etch Wafer Thinning and Stress

TOP VIEW–AFTER UBM ETCH

BUMP CROSS-SECTION

TOP VIEW–AFTER UBM ETCH

BUMP CROSS-SECTION

HIGHLY REPEATABLE PROCESS HIGHLY REPEATABLE PROCESS

PROPRIETARY ENDPOINTING–UBM ETCH

AFM IMAGES BEFORE AND AFTER WAFER THINNING–7X LOWER ROUGHNESS

PROPRIETARY ENDPOINTING–UBM ETCH

AFM IMAGES BEFORE AND AFTER WAFER THINNING–7X LOWER ROUGHNESS

Find out more at www.veeco.com or call 1.888.24.VEECO Find out more at www.veeco.com or callVeeco 1.888.24.VEECO ©2016 Instruments, Inc. ©2016 Veeco Instruments, Inc.

Veeco Precision Surface Processing 185 Gibraltar Road Horsham, PA 19044 USA Veeco Precision Surface Processing +1 215-328-0700 185 Gibraltar Road Horsham, PA 19044 USA +1 215-328-0700