沙特阿拉伯采购需求：碳化硅涂层、碳化钽涂层、碳化硅陶瓷、半导体元件、中国制造商、供应商

I'm looking to source 4-inch Silicon-on-Insulator (SOI) wafers with specific characteristics for my project. The key specifications I need include a top silicon layer thickness of 10 micrometers, with a (100) crystal orientation and p-doping using boron. The resistivity should fall within the range of 0.002 to 0.003 ohm-cm. Additionally, the buried oxide layer should have a thickness of 2 micrometers. For the handle wafer, I require a thickness of 500 micrometers, and it should be undoped. Please provide your availability, lead times, and pricing for these wafers, as well as any additional details regarding quality assurance and specifications that you can share. Looking forward to your prompt response!