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.

Siltree Semiconductor company logo
Monocrystalline silicon ingot

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

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

Hangzhou HQ

Siltree Hangzhou HQ

Company headquarters for R&D, sales and management

Shanxi Factory

Shanxi Factory

Siltree Shanxi Factory

Crystal-growth base in Datong, Shanxi, producing silicon materials

Production & Inspection Equipment

Complete machining and inspection capabilities

Production Equipment

Crystal puller - ingot growth
Crystal puller - ingot growth
Ingot casting furnace
Ingot casting furnace
Large grinding machine
Large grinding machine
Drilling machine
Drilling machine

Inspection Equipment

Four-point probe resistivity tester
Four-point probe resistivity tester
Bruker FT-IR spectrometer
Bruker FT-IR spectrometer
ICP-MS laboratory
ICP-MS laboratory
Microscope inspection
Microscope inspection

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