Detecting heat generating failures in unpassivated semiconductor devices
    21.
    发明授权
    Detecting heat generating failures in unpassivated semiconductor devices 失效
    检测未激活半导体器件中的发热故障

    公开(公告)号:US06866416B1

    公开(公告)日:2005-03-15

    申请号:US10635996

    申请日:2003-08-07

    CPC classification number: G01N25/72 G01N2033/0095

    Abstract: A method and semiconductor device for detecting a heat generating failure in an unpassivated semiconductor device. The semiconductor device has an unpassivated surface and a heat generating failure, e.g., short circuit. A coating may be applied to the unpassivated surface of the semiconductor device. The coating may be non-electrically conducting and capable of localizing heat generated by the failure in a particular area. The semiconductor device may be biased. The failure may then be detected by detecting a location of the heat generated by the failure in the coating.

    Abstract translation: 一种用于检测未通过半导体器件的发热故障的方法和半导体器件。 半导体器件具有未钝化的表面和发热故障,例如短路。 可以将涂层施加到半导体器件的未钝化表面。 涂层可以是非导电的并且能够定位由特定区域中的故障产生的热量。 半导体器件可能被偏置。 然后可以通过检测由涂层中的故障产生的热的位置来检测故障。

    Method and apparatus for polishing an outer edge ring on a semiconductor wafer
    22.
    发明授权
    Method and apparatus for polishing an outer edge ring on a semiconductor wafer 失效
    用于抛光半导体晶片上的外缘环的方法和装置

    公开(公告)号:US06824446B1

    公开(公告)日:2004-11-30

    申请号:US09974241

    申请日:2001-10-10

    CPC classification number: B24B37/11 B24B9/065 B24B37/013 B24B49/12

    Abstract: An outer edge ring of a semiconductor wafer is polished to prevent delamination and peeling-off of at least one layer of material deposited near the outer edge of the semiconductor wafer during fabrication of integrated circuits. The semiconductor wafer is mounted on a wafer chuck, and the wafer chuck holding the semiconductor wafer is rotated such that the semiconductor wafer rotates. A polishing pad is moved toward the semiconductor wafer as the semiconductor wafer is rotating. The polishing pad has a polishing surface that faces and contacts the outer edge ring of the semiconductor wafer as the polishing pad is moved toward the semiconductor wafer to polish the outer edge ring of the semiconductor wafer. The outer edge ring has the at least one layer of material that is polished off by the polishing surface of the polishing pad. The polishing surface of the polishing pad may be tapered such that the edge of an upper layer of material that is disposed further from the semiconductor wafer is disposed more inward toward the center of the semiconductor wafer such that the upper layer of material is not likely to delaminate and peel-off away from a lower abutting layer of material on the semiconductor wafer. Furthermore, a photodetector may determine sufficient polishing of the outer edge ring of the semiconductor wafer.

    Abstract translation: 抛光半导体晶片的外边缘环,以防止在集成电路的制造期间沉积在半导体晶片的外边缘附近的至少一层材料的分层和剥离。 将半导体晶片安装在晶片卡盘上,并且保持半导体晶片的晶片卡盘旋转,使得半导体晶片旋转。 当半导体晶片旋转时,抛光垫朝向半导体晶片移动。 当抛光垫向半导体晶片移动以抛光半导体晶片的外边缘环时,抛光垫具有面向并接触半导体晶片的外边缘环的抛光表面。 外边缘环具有由抛光垫的抛光表面抛光的至少一层材料。 抛光垫的抛光表面可以是锥形的,使得更远离半导体晶片的材料的上层的边缘更靠近半导体晶片的中心设置,使得上层材料不可能 从半导体晶片上的下部邻接材料层剥离和剥离。 此外,光电检测器可以确定半导体晶片的外边缘环的充分抛光。

    System and method for calibrating electron beam defect inspection tool
    23.
    发明授权
    System and method for calibrating electron beam defect inspection tool 有权
    用于校准电子束缺陷检测工具的系统和方法

    公开(公告)号:US06589860B1

    公开(公告)日:2003-07-08

    申请号:US09811190

    申请日:2001-03-16

    CPC classification number: H01L22/34 G01R31/307 G01R35/005 H01L21/76892

    Abstract: A system and method for calibrating/characterizing an electron beam (e-beam) defect inspection tool for detecting voltage contrast defects includes deliberately forming defects in a test portion of a semiconductor wafer by deliberately forming an open, short, or abnormal resistance in a circuit feature. The test portion can be in the scribe lines of a product die or on a fully populated test wafer, so that the calibration of the e-beam tool for certain inspection layers of a fabrication technology can be determined. The electron microscope output of the is checked against the known defects to determine whether the tool is accurately sensing defects.

    Abstract translation: 用于校准/表征用于检测电压对比度缺陷的电子束(电子束)缺陷检查工具的系统和方法包括通过在电路中故意形成开路,短路或异常电阻来故意形成半导体晶片的测试部分中的缺陷 特征。 测试部分可以在产品模具的划线或完全填充的测试晶片上,使得可以确定用于制造技术的某些检查层的电子束工具的校准。 根据已知缺陷检查电子显微镜输出,以确定工具是否精确地感测到缺陷。

    Test circuit and method of use thereof for the manufacture of integrated circuits
    24.
    发明授权
    Test circuit and method of use thereof for the manufacture of integrated circuits 有权
    用于制造集成电路的测试电路及其使用方法

    公开(公告)号:US07312625B1

    公开(公告)日:2007-12-25

    申请号:US11449197

    申请日:2006-06-08

    CPC classification number: G01R31/2884 G01R31/2831 G01R31/2858

    Abstract: A test circuit for fabrication of transistors for Very Large Scale Integration (“VLSI”) processing and method of use thereof are described. Transistors are formed in an array. A first decoder is coupled to gates of the transistors and configured to selectively pass voltage to the gates. A second decoder is coupled to drain regions of the transistors and configured to selectively pass voltage to the drain regions of the transistors. A third decoder is coupled to source regions of the transistors and configured to selectively pass voltage to the source regions of the transistors. A fourth decoder is coupled to body regions of the transistors and configured to selectively pass voltage to the body regions of the transistors.

    Abstract translation: 描述了用于制造用于超大规模集成(“VLSI”)处理的晶体管的测试电路及其使用方法。 晶体管形成阵列。 第一解码器耦合到晶体管的栅极并被配置为选择性地将电压传递到栅极。 第二解码器耦合到晶体管的漏极区域并且被配置为选择性地将电压传递到晶体管的漏极区域。 第三解码器耦合到晶体管的源极区域并且被配置为选择性地将电压传递到晶体管的源极区域。 第四解码器耦合到晶体管的体区,并且被配置为选择性地将电压传递到晶体管的体区。

Patent Agency Ranking