Wafer Processing Services

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Through our global network of testing experts and analytical equipment including chromatography (HPLC, GC, GC/MS) and atomic absorption spectroscopy (AAS, GFA, FIAS), Our goal is to provide test services as efficiently as possible to maximize our customers' profits. For more information about our services, contact one of our experts today.

Note: this service is for Research Use Only and Not intended for clinical use.

Wafer processing lies at the heart of semiconductor device fabrication. It refers to a series of highly controlled and technologically advanced processes performed on wafers to create integrated circuits and microelectronic structures. Throughout the manufacturing cycle, wafers undergo deposition, etching, polishing, photolithography, thinning, cleaning, metrology, dicing, and packaging preparation. Each step requires unparalleled precision: tolerances measured in nanometers, extreme environmental control, and sophisticated inspection. In today's semiconductor landscape, wafer processing is not only about meeting dimensional accuracy—it is about achieving consistency, reliability, yield optimization, and enabling next-generation devices with faster speeds, lower power consumption, thermal stability, and 3D integration capability. Alfa Chemistry specializes in providing high-precision wafer processing services. With decades of experience, cutting-edge equipment, and a robust engineering team, we deliver processing excellence that enables innovation in microelectronics, MEMS, power devices, optoelectronics, sensors, and IC manufacturing.

We offer a comprehensive suite of wafer processing services, including:

Front-End Wafer Processing

Epitaxial Wafer Service

We offer epitaxial growth services including Si epitaxy, SiC epitaxy, GaN-on-Si, GaN-on-Sapphire, and compound semiconductor epi wafers. Customized doping profiles, defect-density control, and epi thickness optimization are available for power devices, RF electronics, and logic applications.

Lithography

Our photolithography platform supports contact, proximity, and projection exposure with sub-micron alignment accuracy. We perform pattern definition for MEMS, metal pads, electrodes, test structures, TSV patterns, and wafer-level design modules.

Implant (Ion Implantation)

We offer precision ion implantation, enabling dopant introduction with exact energy, dose, and angle control. Supported substrates include Si, SOI, GaAs, SiC, GaN, InP—targeting CMOS, RF, and high-power device architectures.

Annealing

We offer rapid thermal anneal (RTA) and furnace thermal treatments to activate dopants, relieve stress, densify dielectric layers, and improve crystalline uniformity following deposition or implantation steps.

Wafer Post-Processing & Mechanical Services

Wafer Backgrinding

To meet ultra-thin device requirements, we offer industry-leading back grinding and chemical-mechanical thinning services. Achievable thickness ranges from 750 µm down to<30 µm while maintaining structural integrity and low stress. Post-grind stress-relief processes are available to prevent wafer warpage.

Wafer Polishing (CMP)

We offer both front-side and back-side chemical-mechanical polishing (CMP), enabling mirror-finish surfaces, improved planarity, and minimal microparticles. Our CMP supports device fabrication needs requiring<1 nm surface roughness.

Wafer Bonding

We provide high-precision wafer-to-wafer and wafer-to-carrier bonding, including fusion bonding, anodic bonding, adhesive bonding, and eutectic bonding. Our bonding processes support silicon, glass, SOI, compound semiconductor substrates, and heterogeneous materials.

Wafer Edge Grinding

We provide automated edge trimming and chamfering to improve wafer edge robustness and reduce handling-related breakage. Edge profiles including C-shape, V-shape, and custom geometries are available for customer-specific device architecture.

Laser Scribing

Our UV and IR laser scribing tools deliver micron-level marking for wafer mapping, traceability, and scribing applications. Laser-mark customization includes QR codes, lot information, and micro-engraved device IDs.

Wafer Downsizing

Full-diameter wafers (e.g. 300 mm / 200 mm) can be cut into smaller customized wafers, sample coupons, or quarter-sections—ideal for R&D pilot lines or equipment evaluation.

Wafer Dicing

Our precision dicing capability includes blade dicing, stealth laser dicing, scribe-and-break, and plasma dicing. Ultra-narrow kerf widths down to<20 µm are supported, significantly improving die yield per wafer.

Wafer Die Sorting

At Alfa Chemistry, automated sorting systems classify, separate, and map dies by test bin code or electrical performance. Inkless mapping technology and 100% traceability ensure downstream packaging accuracy and efficiency.

We process a wide range of wafer materials, diameters, thicknesses:

Supported Wafer Types

Silicon (Si), Silicon-on-insulator (SOI)
Compound semiconductors (GaAs, SiC, GaN, InP)
Sapphire, fused silica, quartz, Pyrex glass
MEMS substrates, CMOS wafers
Metalized wafers, bumped wafers, TSV wafers

Diameter Ranges

2" (50 mm), 3" (75 mm), 4" (100 mm), 5" (125 mm)
6" (150 mm), 8" (200 mm), 12" (300 mm)
Custom square substrates and partial wafers (downsized formats)

Thickness Capabilities

Original thickness to<30 µm ultra-thin wafers
Compound wafers down to<50 µm
Customized thinning for localized back-side removal

Why choose us?

End-to-End Solutions: One-stop service, from bonding to dicing and sorting, reduces supply chain complexity.
Material Expertise: Experience across silicon, compound semiconductors, and glass enables multi-domain innovation.
Flexible Customization: We support R&D, pilot runs, and mass production based on customer specifications.
Global Technical Support: Engineering teams are available to assist with process development, troubleshooting, and design feedback.

With unparalleled processing depth, flexible capabilities, and a commitment to world-class semiconductor quality, our wafer processing services empower customers to accelerate time-to-market and achieve optimal performance across advanced device applications. We look forward to collaborating with you and supporting your success in the next generation of semiconductor innovation.

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