About Us
Hangzhou Siltree Semiconductor Co., Ltd.
Founded in 2024, we are dedicated to delivering high-quality semiconductor silicon parts and silicon materials. Our team has long worked in the semiconductor equipment parts industry, taking part in silicon part design and production for LAM Research, Tokyo Electron (TEL), AMEC and NAURA.

Focused on Silicon Materials & Parts
Siltree focuses on the R&D and production of semiconductor silicon materials (columnar polysilicon and monocrystalline silicon) and silicon parts (UGR rings, electrodes and confinement rings).
We operate a wide range of high-precision equipment, including wire saws, grinders, machining centers, LAP/Polish machines, precision inspection tools, CMM, 2D measuring systems, roughness testers and a high-purity cleaning line for silicon parts, providing a full-process service from material and machining to cleaning and cleanroom packaging.
2024
Founded
20+ yrs
Team industry experience
Core Team
Seasoned industry experts with a deep understanding of OEM specs and design principles

Chance Li
CEO
- 2010~2020: Head of the Silicon Parts Division, Hangzhou Daiwa
- 2020~2024: General Manager, Dunyuan Juxin
Zhang Bangrong
VP, Materials Division
- 2014~2020: Division VP, Shenhe Solar
- 2020~2023: Head of Manufacturing, Zhongxin Wafer
Rao Kaihong
VP, Silicon Parts Manufacturing
- 2003-2024: Held roles at Hangzhou Daiwa and Hangzhou Daiwa Jiangdong New Materials
- Manufacturing Manager / Technical Manager / Assistant to the General Manager
Sites

Hangzhou HQ
Siltree Hangzhou HQ
Company headquarters for R&D, sales and management

Shanxi Factory
Siltree Shanxi Factory
Crystal-growth base in Datong, Shanxi, producing silicon materials
Production & Inspection Equipment
Complete machining and inspection capabilities
Production Equipment




Inspection Equipment




Full Equipment List
- Wire saw
- Coredrill
- Grinder
- Machining center
- LAP/Polish machine
- CMM
- 2D measuring system
- Roughness tester
- FT-IR Spectrometer
- ICP-MS
- Microscope
- Box Furnace
- Resistivity tester
- High-purity cleaning line
- Polysilicon casting furnace
- Crystal puller