High-Precision Diamond Wire Cutting Systems for AlN Wafer Processing in Semiconductor Manufacturing
Aluminum Nitride (AlN) substrates are critical high-performance ceramic materials for power electronics and semiconductor packaging. Precision slicing of AlN wafers helps maintain material integrity, minimize thermal resistance, and ensure reliable performance in high-power applications, which has a positive effect on boosting device efficiency and yield. Among the different types of AlN processing, ultra-thin wafer slicing, multi-layer substrate dicing, and custom component cutting are the most widely used in the industry. In high-volume production lines, the individual processing steps are integrated into automated stations. The AlN blanks are fed through diamond wire cutting systems and processed by various precision operations such as high-tension wire slicing, stress-free cutting, surface grinding, etc.
Diamond wire cutting systems for AlN substrate slicing process the ceramic material after blank preparation, often by means of ultra-precise wire tension control and low-stress cutting close to the final tolerance. High-efficiency cutting systems for ultra-thin wafers, thick substrates or custom components must generate extremely tight dimensional accuracy – with minimal kerf loss – and have high process stability at the same time. At the same time, AlN cutting systems should be able to handle the high hardness and brittleness of ceramic materials and have a compact footprint to guarantee the most space-saving production line design possible.
High-precision, low-kerf-loss and compact diamond wire cutting systems from ewirexon help semiconductor manufacturers achieve ultra-tight dimensional accuracy and thus an optimal slicing result. At the same time, material waste remains low in the main production mode. The cutting systems, made of high-rigidity steel frames, are wear-resistant and, thanks to their optimized wire tension control, ideally suited for flexible processing of various AlN substrate thicknesses or orientations of the cutting direction. Due to its stable mechanical structure, it requires lower maintenance frequency than industry-standard cutting systems. The combination of precision wire guide geometry and optimized inlet cone ensures minimal sub-surface damage. Thanks to the reduced footprint of the machine, particularly space-saving production line designs can be realized. The AlN cutting systems have been tested for cyclic operating conditions to simulate applications with a high number of start-stops, such as are common in semiconductor wafer manufacturing.
Reduced material waste and production lossthanks to precision-optimized wire path geometry of the cutting systems, minimizing kerf loss and sub-surface damage.
Savings in production costs and material yield improvementpossible, as the high-precision cutting blades ensure high material utilization with consistent process stability.
Optimum slicing resultWhen used in the specially matched production line, high dimensional accuracy and ultra-smooth surface quality are generated, enabling fast and efficient wafer processing.
Reduction of service costs due to the long service life of the cutting systemswhich can be achieved thanks to high-rigidity frame structure and high component strength confirmed by cycle tests.
| NO. | パラメータ | 仕様 |
| 1 | モデル | TCQF400LNC-FM-HL |
| 2 | 切断の原理 | エンドレス・ダイヤモンドワイヤー／物理的切断 |
| 3 | 切断機能 | スライス加工／角度・形状切断 |
| 4 | 最大ワークサイズ（mm） | Φ600mm、高さ500mm |
| 5 | 作業台のサイズ（mm） | Ø380 转台 |
| 6 | 切断平面度精度（mm） | 0.08 |
| 7 | 表面粗さ（μm） | Ra 0.8μm |
| 8 | ワイヤの仕様（mm） | Ø0.65–1.0/2580 |
| 9 | テンションシステム | ワイヤ張力の恒常制御 |
| 10 | ガイドホイールの数量 | 4輪 |
| 11 | 駆動モーター | サーボモーター |
| 12 | ワイヤ速度（m/s） | 51Max（調整可能） |
| 13 | Total Power | 2.8 |
| 14 | 電圧 | 220V 50Hz |
| 15 | 制御システム | 特注開発のTongcheng T32システム |
| 16 | 外形寸法（長さ×幅×高さ）（mm） | 1350×1066×1968 |
| 17 | 総重量（kg） | 720 |
A semiconductor manufacturer partnered with ewirexon to upgrade their AlN slicing process, achieving higher yield, lower material waste, and consistent precision in production.
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