发明名称 |
Controlled Ion Implantation Into Silicon Carbide Using Channeling And Devices Fabricated Using Controlled Ion Implantation Into Silicon Carbide Using Channeling |
摘要 |
Methods of forming a semiconductor structure include the use of channeled implants into silicon carbide crystals. Some methods include providing a silicon carbide layer having a crystallographic axis, heating the silicon carbide layer to a temperature of about 300° C. or more, implanting dopant ions into the heated silicon carbide layer at an implant angle between a direction of implantation and the crystallographic axis of less than about 2°, and annealing the silicon carbide layer at a time-temperature product of less than about 30,000° C.-hours to activate the implanted ions. |
申请公布号 |
US2015028350(A1) |
申请公布日期 |
2015.01.29 |
申请号 |
US201414281384 |
申请日期 |
2014.05.19 |
申请人 |
Cree, Inc. |
发明人 |
Suvorov Alexander V.;Pala Vipindas |
分类号 |
H01L21/265;H01L29/16 |
主分类号 |
H01L21/265 |
代理机构 |
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代理人 |
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主权项 |
1. A method of forming a semiconductor structure, comprising:
providing a silicon carbide layer having a crystallographic axis; heating the silicon carbide layer to a temperature of about 300° C. or more; implanting dopant ions into the heated silicon carbide layer at an implant angle between a direction of implantation and the crystallographic axis of less than about 2°; and annealing the silicon carbide layer at a time-temperature product of less than about 30,000° C.-hours to activate the implanted ions. |
地址 |
Durham NC US |