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    • 76. 发明申请
    • MICROELECTRONIC CONTACT STRUCTURE AND METHOD OF MAKING SAME
    • 微电子接触结构及其制造方法
    • US20100093229A1
    • 2010-04-15
    • US12577444
    • 2009-10-12
    • Benjamin N. EldridgeGary W. GrubeIgor Y. KhandrosGaetan L. Mathieu
    • Benjamin N. EldridgeGary W. GrubeIgor Y. KhandrosGaetan L. Mathieu
    • H01R4/48
    • G01R1/06727G01R1/06738H01L21/6835H01L2221/68359H01L2224/11003H01L2224/111H01L2224/11826H01L2224/13017H01L2224/13018H01L2224/13019H01L2224/13565H01L2224/13582H01L2224/819H01L2924/01019H01L2924/01074H01L2924/01078H01L2924/14H01L2924/1433H01L2924/3011H01L2924/3025
    • Spring contact elements are fabricated by depositing at least one layer of metallic material into openings defined on a sacrificial substrate. The openings may be within the surface of the substrate, or in one or more layers deposited on the surface of the sacrificial substrate. Each spring contact element has a base end portion, a contact end portion, and a central body portion. The contact end portion is offset in the z-axis (at a different height) than the central body portion. The base end portion is preferably offset in an opposite direction along the z-axis from the central body portion. In this manner, a plurality of spring contact elements are fabricated in a prescribed spatial relationship with one another on the sacrificial substrate. The spring contact elements are suitably mounted by their base end portions to corresponding terminals on an electronic component, such as a space transformer or a semiconductor device, whereupon the sacrificial substrate is removed so that the contact ends of the spring contact elements extend above the surface of the electronic component. In an exemplary use, the spring contact elements are thereby disposed on a space transformer component of a probe card assembly so that their contact ends effect pressure connections to corresponding terminals on another electronic component, for the purpose of probing the electronic component.
    • 通过将至少一层金属材料沉积到限定在牺牲衬底上的开口中来制造弹簧接触元件。 开口可以在衬底的表面内,或者在沉积在牺牲衬底的表面上的一个或多个层中。 每个弹簧接触元件具有基端部分,接触端部分和中心体部分。 接触端部在与中心体部分相同的z轴(不同高度)偏移。 基端部优选地沿着与中心主体部分的z轴相反的方向偏移。 以这种方式,在牺牲基板上以规定的空间关系制造多个弹簧接触元件。 弹簧接触元件通过它们的基端部适当地安装在诸如空间变压器或半导体器件的电子部件上的对应端子上,从而去除牺牲基板,使得弹簧接触元件的接触端部在表面上方延伸 的电子元件。 在示例性用途中,弹簧接触元件因此被布置在探针卡组件的空间变换器部件上,使得它们的接触端在另一电子部件上实现与相应端子的压力连接,以便探测电子部件。
    • 79. 发明授权
    • Bumpless semiconductor device
    • 无铅半导体器件
    • US07638876B2
    • 2009-12-29
    • US11486075
    • 2006-07-14
    • Yukio YamadaMasayuki NakamuraHiroyuki Hishinuma
    • Yukio YamadaMasayuki NakamuraHiroyuki Hishinuma
    • H01L23/48
    • H01L21/563H01L21/4853H01L24/11H01L24/13H01L2224/05571H01L2224/05573H01L2224/11003H01L2224/11332H01L2224/13099H01L2224/131H01L2224/73203H01L2924/0001H01L2924/01004H01L2924/01005H01L2924/01006H01L2924/01013H01L2924/01029H01L2924/01033H01L2924/01078H01L2924/01079H01L2924/014H01L2924/07802H01L2924/07811H01L2924/14H01L2924/00015H01L2924/00H01L2224/05624H01L2924/00014
    • When connecting a semiconductor device such as an IC chip with a circuit board by the flip-chip method, a semiconductor device is provided without forming bumps thereon, which enables highly reliable and low cost connection between the IC chip and circuit board while ensuring suppressing short-circuiting, lowering connection costs, suppressing stress concentrations at the joints and reducing damage of the IC chip or circuit board. The bumpless semiconductor device is provided with electrode pads 2 on the surface thereof and with a passivation film 3 at the periphery of the electrode pads 2, and conductive particles 4 are metallically bonded to the electric pads 2. Composite particles in which a metallic plating layer is formed at the surface of resin particles are employed as the conductive particles 4. This bumpless semiconductor device can be manufactured by (a) causing conductive particles to be electrostatically adsorbed onto one face of a flat plate; and (b) overlaying the surface of the plate having the adsorbed conductive particles on the surface of electrode pads of a bumpless semiconductor device which is provided with the electrode pads on the surface thereof and with a passivation film at the periphery of the electrode pads, and ultrasonically welding this assembly, so that the conductive particles are metallically bonded and transferred from the flat plate to the electrode pads.
    • 当通过倒装芯片方法将诸如IC芯片的半导体器件与电路板连接时,提供半导体器件而不在其上形成凸块,这使得IC芯片和电路板之间可以实现高可靠性和低成本的连接,同时确保抑制短路 电路,降低连接成本,抑制接头处的应力集中,降低IC芯片或电路板的损坏。 无电解半导体器件在其表面上设置有电极焊盘2,并且在电极焊盘2的周围具有钝化膜3,并且导电颗粒4金属地结合到电焊盘2.复合颗粒,其中金属镀层 形成在树脂粒子表面的导电粒子4.这种无凸起的半导体器件可以通过(a)使导电粒子静电吸附在平板的一个面上来制造; 和(b)将具有吸附的导电颗粒的板的表面覆盖在其表面上设置有电极焊盘的无扰动半导体器件的电极焊盘的表面上,并且在电极焊盘的周围具有钝化膜, 并且超声波焊接该组件,使得导电颗粒被金属地结合并从平板转移到电极焊盘。