会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明授权
    • Method of forming PN junctions including a post-ion implant dynamic surface anneal process with minimum interface trap density at the gate insulator-silicon interface
    • 在栅极绝缘体 - 硅界面处形成具有最小界面陷阱密度的离子后植入物动态表面退火工艺的PN结的方法
    • US07659187B2
    • 2010-02-09
    • US11735947
    • 2007-04-16
    • Philip Allan KrausVijay Parihar
    • Philip Allan KrausVijay Parihar
    • H01L21/425
    • H01L21/268H01L21/26513H01L21/823418H01L29/66575
    • A method of forming transistors on a wafer includes forming gates over gate insulators on a surface of the wafer and ion implanting dopant impurity atoms into the wafer to form source and drain regions aligned on opposite sides of each gate. The wafer is then annealed by pre-heating the bulk of the wafer to an elevated temperature over 350 degrees C. but below a temperature at which the dopant atoms tend to cluster. Meanwhile, an intense line beam is produced having a narrow dimension along a fast axis from an array of coherent CW lasers of a selected wavelength. This line beam is scanned across the surface of the heated wafer along the direction of the fast axis, so as to heat, up to a peak surface temperature near a melting temperature of the wafer, a moving localized region on the surface of the wafer having (a) a width corresponding to the narrow beam width and (b) an extremely shallow below-surface depth. During the scanning step, the surface state density at the interface between the semiconductor material and the gate insulator is minimized by continuing to maintain the temperature of the bulk of the wafer outside of the moving localized region at said elevated temperature, while maintaining the rate at which the line beam is scanned along the fast axis at a rate in excess of 300 mm/sec.
    • 在晶片上形成晶体管的方法包括在晶片的表面上的栅极绝缘体上形成栅极,并将离子注入掺杂杂质原子放入晶片中以形成在每个栅极的相对侧对准的源区和漏区。 然后通过将晶片的大部分预热至350℃以上的高温但低于掺杂剂原子倾向于聚集的温度来退火晶片。 同时,产生沿着来自所选波长的相干CW激光器阵列的快轴具有窄尺寸的强线束。 该线束沿加热晶片的表面沿着快轴的方向扫描,以加热直到晶片的熔化温度附近的峰值表面温度,晶片表面上的移动局部区域具有 (a)对应于窄梁宽度的宽度和(b)非常浅的下表面深度。 在扫描步骤期间,通过在所述升高的温度下继续将晶片的主体的温度保持在移动的局部区域的外部,同时将速率保持在该范围内,使半导体材料和栅极绝缘体之间的界面处的表面状态密度最小化 其中线束以快速轴线以超过300mm / sec的速率扫描。