Accretech HRG3000RMX Fully Automated Dual-Axis Precision Grinder
| Brand | Accretech |
|---|---|
| Origin | Netherlands |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Semiconductor Processing Equipment |
| Model | HRG3000RMX |
| Pricing | Available Upon Request |
Overview
The Accretech HRG3000RMX is a fully automated, dual-axis precision grinding system engineered for high-accuracy material removal and surface conditioning of advanced semiconductor wafers. Designed specifically for hard, brittle substrates—including silicon carbide (SiC), lithium tantalate (LiTaO₃, LT), and lithium niobate (LiNbO₃, LN)—the HRG3000RMX employs closed-loop motion control, real-time force feedback, and ultra-stiff mechanical architecture to maintain sub-micron thickness uniformity and nanometer-level surface roughness (Ra < 0.5 nm after final pass). Unlike conventional single-axis grinders, its synchronized dual-spindle configuration enables simultaneous front-side grinding and back-side conditioning—minimizing wafer warpage, reducing total cycle time by up to 35%, and eliminating manual repositioning steps. The system operates under cleanroom-compatible environmental controls (ISO Class 5 compliant enclosure optional) and integrates seamlessly into 300 mm fab automation frameworks via SECS/GEM protocol support.
Key Features
- Dual-axis synchronous grinding architecture with independent Z-axis servo control for front and back surfaces
- High-rigidity granite base and air-bearing spindle assemblies ensuring thermal stability and vibration isolation
- Integrated in-situ thickness metrology using non-contact laser interferometry (±0.1 µm repeatability)
- Automated wafer handling with robotic arm (SEMI E47.1 compliant), cassette-to-cassette operation, and 3–8-inch wafer compatibility
- Programmable grinding profiles supporting multi-step processes: coarse removal → fine leveling → mirror finish polishing prep
- Real-time acoustic emission monitoring for endpoint detection and abrasive wear compensation
- Modular coolant delivery system with temperature-controlled DI water filtration (≤5 ppm particulates) and flow-rate optimization per grinding zone
Sample Compatibility & Compliance
The HRG3000RMX is validated for use with compound semiconductor wafers requiring extreme dimensional fidelity: SiC (4H/6H polytypes), LT, LN, GaN-on-Si, and sapphire substrates. It supports both bare and device-layered wafers up to 8 inches (200 mm) in diameter and thicknesses ranging from 100 µm to 1.5 mm. All process recipes are stored with full audit trail metadata (operator ID, timestamp, parameter set, sensor logs), satisfying GLP and GMP documentation requirements. The system complies with IEC 61000-6-2 (EMC immunity), ISO 14644-1 (cleanroom integration readiness), and meets mechanical safety standards per ISO 13857 and ANSI B11.19. Optional FDA 21 CFR Part 11 compliance package includes electronic signature enforcement, role-based access control, and immutable data archiving.
Software & Data Management
Control and monitoring are managed through Accretech’s proprietary GRINDWARE™ v4.2 platform—a Windows-based HMI with deterministic real-time kernel. The software provides recipe-driven operation with version-controlled process templates, dynamic parameter adjustment during active grinding (e.g., feed rate ramping based on measured removal rate), and export of raw sensor data in HDF5 format for offline statistical process control (SPC). Integrated ODBC connectivity enables direct linkage to factory MES systems (e.g., Applied Materials EnVision, PDF Solutions Exensio). All operational logs—including spindle power, coolant pressure, Z-position error, and AE amplitude—are time-stamped and stored locally with RAID-1 redundancy; remote diagnostics and firmware updates are supported over TLS 1.3–secured network channels.
Applications
- Thickness reduction and planarization of SiC power device wafers prior to epitaxial regrowth
- Back-grinding of LT/LN SAW/BAW filter wafers to achieve precise resonant frequency tuning
- Pre-polish surface preparation for GaN HEMT fabrication on silicon or SiC substrates
- Wafer thinning for 3D IC stacking and TSV integration processes
- R&D-scale process development for novel wide-bandgap materials where conventional CMP introduces subsurface damage
FAQ
What wafer sizes does the HRG3000RMX support?
The system accommodates 3-inch (76 mm), 4-inch (100 mm), 6-inch (150 mm), and 8-inch (200 mm) wafers with automatic chuck recognition and size-specific kinematic alignment.
Is the machine compatible with existing fab automation infrastructure?
Yes—it supports SEMI E30 (SECS-II), E37 (GEM), and E40 (HSMS) standards, and includes configurable port mapping for integration with host equipment controllers (HECs) and material handling systems (MHS).
Can the HRG3000RMX perform both grinding and lapping in one setup?
No—the HRG3000RMX is optimized exclusively for precision grinding with diamond-impregnated wheels; lapping functionality requires separate tooling not supported in this configuration.
What level of operator training is required to run the system?
Operators require completion of Accretech’s certified Level 2 GRINDWARE™ Operator Course (2-day onsite or virtual), covering recipe management, fault diagnosis, preventive maintenance scheduling, and audit log review procedures.
Does the system include built-in process validation tools?
Yes—each grinding cycle generates a comprehensive Process Verification Report (PVR) including thickness map deviation (3σ), edge exclusion analysis, and surface tilt metrics aligned with SEMI MF-1530 specifications.
