Method for adhering polyimide to a substrate
    3.
    发明授权
    Method for adhering polyimide to a substrate 失效
    将聚酰亚胺粘附于基材的方法

    公开(公告)号:US5198264A

    公开(公告)日:1993-03-30

    申请号:US584958

    申请日:1990-09-19

    摘要: A method of adhering a polyimide to a substrate includes first placing the substrate in a dilute acid solution. The substrate is then placed in a palladium and tin solution followed by a rinse with water. The rinsed substrate is placed in an accelerator solution to substantially remove the tin from the substrate. The palladium which remains on the substrate surface provides nucleation sites for adhesion promotion and enhanced wetting of polyimide which is applied in a liquid form as by spraying or spinning. Adhesion of polyimide to metals such as gold, ceramics, alumina or polyimide is thereby provided.

    摘要翻译: 将聚酰亚胺粘附到基板的方法包括首先将基板放置在稀酸溶液中。 然后将底物置于钯和锡溶液中,然后用水冲洗。 将冲洗的基材置于促进剂溶液中以从基材中基本上除去锡。 保留在基材表面上的钯提供用于粘合促进的成核位点和增强的通过喷雾或纺丝以液体形式施加的聚酰亚胺的润湿性。 因此,提供了聚酰亚胺与金,陶瓷,氧化铝或聚酰亚胺等金属的粘附性。

    Leadless integrated circuit package
    7.
    发明授权
    Leadless integrated circuit package 失效
    无铅集成电路封装

    公开(公告)号:US5535101A

    公开(公告)日:1996-07-09

    申请号:US970901

    申请日:1992-11-03

    摘要: A semiconductor device package comprises an integrated circuit chip (10), a substrate (16), an encapsulant (30), and an organic coupling agent or underfill material (12) disposed between the integrated circuit chip and the first side of the substrate. The chip has a plurality of interconnection pads (14) disposed on an active surface of the chip at some minimum spacing "X." Each of the interconnect pads also has electrically conducting bumps (26) on them. The substrate has a circuit pattern (20) on a first side and an array of solder pads (23) spaced a certain distance apart on an opposite side of the substrate. The distance between these pads is greater than the minimum distance (X) between the interconnect pads on the IC. The circuit pattern is electrically connected to the array of solder pads by plated through holes (22). The length and width of the circuit carrying substrate is substantially greater than the length and width of the integrated circuit chip. The chip is mounted face down to the substrate with the electrically connecting bumps, such that at least some of the plated through holes in the substrate are covered by the chip. The polymeric encapsulant (30) covers the entire chip and substantially all of the first side of the substrate, providing a sealed package.

    摘要翻译: 半导体器件封装包括集成电路芯片(10),衬底(16),密封剂(30)以及设置在集成电路芯片和衬底的第一侧之间的有机耦合剂或底部填充材料(12)。 芯片具有多个布置在芯片的有效表面上的互连焊盘(14),该互连焊盘以一定的最小间距“X” 每个互连焊盘在其上也具有导电凸块(26)。 衬底在第一侧具有电路图案(20)和在衬底的相对侧上间隔一定距离的焊盘(23)阵列。 这些焊盘之间的距离大于IC上的互连焊盘之间的最小距离(X)。 电路图案通过电镀通孔(22)电连接到焊盘阵列。 电路承载衬底的长度和宽度远大于集成电路芯片的长度和宽度。 芯片通过电连接凸块面向下安装到基板上,使得基板中的至少一些电镀通孔被芯片覆盖。 聚合物密封剂(30)覆盖基片的整个芯片和基本上所有的第一侧,提供密封的封装。

    Method of manufacturing a liquid crystal display device in which a
vacuum reservoir attached to the LCD is placed in a conformable
container or bag
    10.
    发明授权
    Method of manufacturing a liquid crystal display device in which a vacuum reservoir attached to the LCD is placed in a conformable container or bag 失效
    一种液晶显示装置的制造方法,其中将附着在LCD上的真空容器放置在适合的容器或袋中

    公开(公告)号:US5515188A

    公开(公告)日:1996-05-07

    申请号:US254000

    申请日:1994-06-03

    摘要: A liquid crystal device (5) is made by providing an LCD sandwich made of two glass substrates (20) with electrodes, spacers (21), and an uncured sealant (22). A gap (26) with a specified internal volume lies between the two glass substrates. A vacuum reservoir (23) having an internal volume substantially larger than the internal volume of the gap is temporarily attached to the LCD sandwich to align the glass substrates and hold them in place. The LCD sandwich and vacuum reservoir are placed into a conformable container or vacuum bag (24). A vacuum is drawn on the bag so that the bag walls contact the LCD sandwich, and the bag is sealed to maintain the vacuum. The assembly is then heated while under vacuum for a time and a temperature sufficient to cause the gap in the LCD sandwich to decrease to a desired final gap and to cure the sealant.

    摘要翻译: 通过提供由两个玻璃基板(20)制成的具有电极,间隔物(21)和未固化的密封剂(22)的LCD夹层来制造液晶装置(5)。 具有特定内部体积的间隙(26)位于两个玻璃基板之间。 具有基本上大于间隙的内部体积的内部体积的真空容器(23)临时附接到LCD夹层板以使玻璃基板对准并将其保持在适当的位置。 LCD夹层和真空储存器放置在一个适合的容器或真空袋(24)中。 在袋子上抽真空,使得袋壁与LCD夹层接触,袋被密封以保持真空。 然后将组件在真空下加热一段时间,并使温度足以使LCD夹层中的间隙减小到期望的最终间隙并固化密封剂。