Freewheel structure
    1.
    发明授权
    Freewheel structure 失效
    自由轮结构

    公开(公告)号:US08640569B2

    公开(公告)日:2014-02-04

    申请号:US13459006

    申请日:2012-04-27

    IPC分类号: F16C15/00

    摘要: A freewheel structure includes a wheel frame and at least one weight block. The wheel frame has a central axle portion and a flange portion around an outer edge thereof. The axle portion is for insertion of an axle member. The weight block is selectively located between the axle portion and the flange portion, so that the weight block has a certain distance relative to axle portion. The freewheel will generate a greater centrifugal force when it is rotated at a high speed. The inertial effect of the present invention can be enhanced when the rotational speed is increasing progressively, so the curve of inertial weight is elongated obviously. The whole weight of the freewheel is reduced effectively.

    摘要翻译: 自由轮结构包括车轮框架和至少一个重量块。 轮架具有中心轴部分和围绕其外边缘的凸缘部分。 轴部分用于插入轴构件。 重块被选择性地位于轴部分和凸缘部分之间,使得重物块相对于轴部分具有一定的距离。 当高速旋转时,自由轮将产生更大的离心力。 当转速逐渐增加时,可以提高本发明的惯性效应,因此惯性重量的曲线明显拉长。 飞轮的整体重量有效降低。

    Method for forming solder bumps of increased height
    3.
    发明申请
    Method for forming solder bumps of increased height 有权
    形成增加高度的焊料凸块的方法

    公开(公告)号:US20060105560A1

    公开(公告)日:2006-05-18

    申请号:US10988528

    申请日:2004-11-16

    IPC分类号: H01L21/44

    摘要: A method for forming solder bumps (or solder balls after reflow) of improved height and reliability is provided. In one embodiment, a semiconductor substrate having at least one contact pad and an upper passivation layer having at least one opening formed therein exposing a portion of the contact pad is provided. A layer of under bump metal (UBM) is formed above the passivation layer and the contact pad. A first patterned and etched photoresist layer is provided above the UBM layer, the first patterned and etched photoresist layer defining at least one first opening therein. A second patterned and etched photoresist layer is provided above the first patterned and etched photoresist layer, the second patterned and etched photoresist layer defining at least one second opening therein, the second opening being wider than the first opening. A solder material is filled in the at least one first opening and substantially filled in the at least one second opening. The first and second photoresist layers are removed and the solder material is reflown to create a solder ball of increased height.

    摘要翻译: 提供了一种改善高度和可靠性的形成焊料凸块(或回流焊球)的方法。 在一个实施例中,提供了具有至少一个接触焊盘和具有形成在其中的至少一个开口的上钝化层的半导体衬底,其暴露接触焊盘的一部分。 在钝化层和接触垫之上形成一层下凸块金属(UBM)。 第一图案化和蚀刻的光致抗蚀剂层设置在UBM层上方,第一图案化和蚀刻光刻胶层在其中限定至少一个第一开口。 第二图案化和蚀刻光刻胶层设置在第一图案化和蚀刻光刻胶层的上方,第二图案化和蚀刻光刻胶层在其中限定至少一个第二开口,第二开口比第一开口更宽。 焊料材料填充在至少一个第一开口中并且基本上填充在至少一个第二开口中。 去除第一和第二光致抗蚀剂层,并且焊料材料被重新喷射以产生增加的高度的焊球。

    METHOD OF FINE PITCH BUMP STRIPPING
    8.
    发明申请
    METHOD OF FINE PITCH BUMP STRIPPING 有权
    精细抛光袋剥离方法

    公开(公告)号:US20080044756A1

    公开(公告)日:2008-02-21

    申请号:US11465375

    申请日:2006-08-17

    IPC分类号: G03C11/12

    CPC分类号: G03F7/422

    摘要: A method for removing dry film resist (DFR) from a fine pitch solder bump array on a semiconductor wafer provides for pre-soaking the wafer in a chemical bath then turbulently exposing the wafer to a chemical solution, both steps taking place in batch processing with the wafers processed in a vertical position. The wafers are then individually processed through a chemical spinning operation in which a chemical solution is dispensed from a spray nozzle while motion such as spinning is imparted the horizontally disposed wafer. The spin speed of the chemical spraying process may then be increased to accelerate physical removal of residue. Deionized water rinsing and spin-drying provide a solder bump array void of any DFR or other residuals.

    摘要翻译: 从半导体晶片上的细间距焊料凸点阵列去除干膜抗蚀剂(DFR)的方法提供将晶片预浸在化学浴中,然后将晶片湍流地暴露于化学溶液,这两个步骤在批处理中发生, 晶片在垂直位置处理。 然后通过化学纺丝操作单独处理晶片,其中从喷雾喷嘴分配化学溶液,同时使诸如旋转的运动赋予水平设置的晶片。 然后可以增加化学喷涂过程的旋转速度以加速残留物的物理去除。 去离子水冲洗和旋转干燥提供无任何DFR或其他残留物的焊料凸块阵列。