Wafer Backgrinding Service

Wafer backgrinding, also known as wafer thinning, is an essential semiconductor fabrication step that enables ultra-thin device form factors and advanced packaging structures. The process reduces the thickness of processed wafers from their original bulk dimensions down to a target thickness suitable for next-generation applications such as 3D IC packaging, through-silicon via (TSV) devices, MEMS sensors, image sensors, RF chips, optical modules and power electronics. By carefully controlling material removal on the wafer backside—while protecting delicate front-side patterns—backgrinding helps improve heat dissipation, enhance electrical performance, and enable ultra-small electronic products. At Alfa Chemistry, we provide full-scope wafer backgrinding and post-processing services engineered for both high-volume production and R&D-level customization.

Our service portfolio includes:

• Standard backside thinning
• Ultra-thin wafer grinding
• Frontside thinning
• Single-die and partial-wafer thinning
• Bumped-wafer thinning
• Bonded wafer thinning (including anodic bonded silicon-on-glass wafers)
• ...

Explore our capacities

Our wafer backgrinding division is equipped with state-of-the-art tools and metrology systems, enabling consistent output across multiple substrates, diameters, and process complexities.

Substrate & Material Capability

We offer thinning for a wide breadth of wafer materials, including:

• Silicon (Si) – Standard semiconductor substrate requiring uniform thickness and high-precision flatness
• Compound Semiconductor Wafers – GaAs, InP, InGaAs, Germanium,
• Specialty Substrates – SiC, Sapphire, Glass, Ceramics, Stainless Steel

Dimensional Processing Capacity

Our backgrinding systems are engineered to meet various wafer sizes and thinning requirements:

Thinning & Grinding Techniques

We deploy a full spectrum of thinning approaches to support diverse wafer materials and end-use performance goals:

Final Backside Finishing Options

To ensure wafers meet packaging-grade quality standards, multiple finish levels are available:

Our wafer backgrinding service provides multiple technological and commercial advantages:

• Reduced package height enabling ultra-slim consumer electronics, cameras, wearables, and implantable medical devices
• Improved thermal dissipation critical for high-current power devices and high-frequency RF chips
• Enhanced electrical performance enabling TSV connections and vertical device stacking
• Higher packaging flexibility supporting fan-out, flip-chip, hybrid bonding and MEMS integration
• Increased mechanical reliability through stress-relief and CMP finish that prevent wafer warpage and fracture

Why choose us?

• Unmatched Substrate Versatility: From silicon to sapphire, GaAs, and SiC, our expertise extends across all critical semiconductor materials.
• Ultra-Thin Capability with Tight Tolerances: Down to 25 microns with < 5 µm thickness variance, minimizing breakage risk and maximizing yield.
• Reliability & Speed: Fast-turn processing for both engineering samples and mass-production runs.
• End-to-End Quality Control: Inline metrology tools ensure uniformity, flatness, warp-control, and surface inspection at every stage.
• Customer-Centric Support: Our engineering team collaborates closely with clients to tailor process parameters for specific device requirements.