-
公开(公告)号：US4877175A
公开(公告)日：1989-10-31
申请号：US292048
申请日：1988-12-30
申请人： Marshall G. Jones , Prem N. Batra
发明人： Marshall G. Jones , Prem N. Batra
CPC分类号： H01L23/5258 , B23K1/018 , B23K26/0006 , B23K26/0081 , H05K3/225 , B23K2203/56 , H01L2924/0002 , H05K2203/046 , H05K2203/107 , H05K2203/175 , H05K3/3421
摘要： A solder bridge between leads of a microelectronic circuit is removed by projecting a laser beam onto the solder bridge with sufficient power to cause the solder forming the bridge to melt and to flow onto a wicking tool placed into contact with the solder bridge. The wicking tool is removed during the heating to remove the solder and debridge the leads. Microelectronic leads having a width of the order of 4 mils and a pitch of the order of 8 mils may be debridged easily using the invention.
-
32.发明授权
公开(公告)号：US4799755A
公开(公告)日：1989-01-24
申请号：US136071
申请日：1987-12-21
申请人： Marshall G. Jones
发明人： Marshall G. Jones
CPC分类号： G02B6/241 , B23K26/06 , B23K26/064 , B23K26/0648 , B23K26/0665 , G02B6/3624 , G02B6/3636 , G02B6/4206 , G02B6/4296 , G02B2006/4297
摘要： Laser materials processing apparatus for performing processing with a fiber optic transmitted beam is disclosed. A fiber injecting lens is selected to have a focal length of sufficient length to enable the use, for materials processing, of the diverging beam emitted at an output end of the fiber without the need for a beam focusing lens type output coupler.
摘要翻译： 公开了一种用光纤透射光束进行处理的激光材料处理装置。 纤维注入透镜被选择为具有足够长度的焦距，以使得能够在材料处理中使用在光纤的输出端发射的发散光束，而不需要光束聚焦透镜型输出耦合器。
-
33.发明授权
公开(公告)号：US4401912A
公开(公告)日：1983-08-30
申请号：US260245
申请日：1981-05-04
CPC分类号： H01J61/24
摘要： A high pressure metal (sodium) vapor lamp comprises an outer vitreous envelope and an inner ceramic arc tube supported within it. The arc tube contains vaporizable metal in excess of the quantity vaporized in operation and the heat balance determines a cold spot whereat excess metal collects. The temperature of the cold spot determines the vapor pressure and the voltage drop across the lamp which must lie between specified limits. A thermal link is provided to a metal member such as the exhaust tube, the heat loss from which influences significantly the temperature of the cold spot. In completed lamps measuring too low in voltage, such thermal link may be partly severed without breaking open the outer envelope in order to raise the voltage. One convenient way utilizes an auxiliary wire which is cut by aiming a laser beam at it. Another convenient way to reduce the conductive cross section of the thermal link is to use a laser to drill one or more holes through a metallic member comprising the thermal link.
摘要翻译： 高压金属（钠）蒸汽灯包括外玻璃密封圈和支撑在其内的内陶瓷电弧管。 电弧管包含超过在运行中蒸发的量的可蒸发金属，并且热平衡确定多余金属收集的冷点。 冷点的温度决定了蒸汽压力和灯之间的电压降必须在规定的极限之间。 向诸如排气管的金属构件提供热连接，其热损失显着影响冷点的温度。 在测量电压过低的完成的灯中，这种热连接可以部分地切断，而不会打开外壳，以提高电压。 一种方便的方式是利用通过将激光束瞄准它而切割的辅助线。 减少热连接件的导电横截面的另一种便利的方法是使用激光器穿过包括热连接件的金属构件钻一个或多个孔。
-
34.发明授权
公开(公告)号：US4328411A
公开(公告)日：1982-05-04
申请号：US144538
申请日：1980-04-28
CPC分类号： H02K15/026 , B23K15/08 , B23K26/40 , B23K2203/50 , Y10T225/12 , Y10T225/304 , Y10T225/325 , Y10T29/49009
摘要： A rapid method of cutting thin amorphous metal sheet material is to use a focused heat source such as a laser beam or electron beam to heat local regions of the material above the crystallization temperature and form brittle crystalline lines along which the material fractures when it is mechanically deformed as by passage through a set of rollers. The material is not melted and does not form burrs. A higher packing factor is possible for motor and transformer laminations.
摘要翻译： 切割薄的非晶金属片材的快速方法是使用诸如激光束或电子束的聚焦热源来将材料的局部区域加热到高于结晶温度并形成脆性结晶线，当材料机械地断裂时， 通过一组辊子而变形。 材料不熔化，不会形成毛刺。 电机和变压器叠片的更高封装因素是可能的。
-
-
-
搜索结果
34 条记录 (耗时 0.076 秒)