-
公开(公告)号：US5507903A
公开(公告)日：1996-04-16
申请号：US949543
申请日：1994-01-12
CPC分类号： H05K3/022 , H01L21/4846 , H05K3/4092 , H05K1/0346 , H05K1/036 , H05K2201/0154 , H05K2201/0355 , H05K2203/063 , H05K2203/066 , H05K3/281 , Y10T156/1056 , Y10T156/1057
摘要： There are provided a process for producing a two-layered tape for TAB, which comprises forming desired holes in a semi-cured polyamic acid film formed on a release film or in a semi-cured polyamic acid film subjected to stretching of 10% or more, then pressure-bonding the resulting film or film laminate to a conductor foil or a conductor foil on which a semi-cured light-transmittable polyamic acid film is formed, so that the polyamic acid film and the conductor foil contact with each other or the two polyamic acid films contact with each other, conducting imidization, and thereafter forming a desired pattern in the conductor foil; a process for producing a stretched polyamic acid film by subjecting a polyamic acid film to stretching of 10% or more; and a process for producing a flexible base board for printed circuit or a flexible printed circuit board with a cover layer, both using said stretched polyamic acid film.
摘要翻译： PCT No.PCT / JP92 / 00286 Sec。 371日期：1994年1月12日 102（e）日期1994年1月12日PCT 1991年3月11日PCT公布。 出版物WO92 / 16970 PCT 提供了一种用于制造TAB的双层带的方法，其包括在形成在脱模膜上的半固化聚酰胺酸膜中或在半固化聚酰胺酸膜中形成所需的孔， 拉伸10％以上，然后将得到的膜或膜层压体压接到其上形成有半固化的可透光聚酰胺酸膜的导体箔或导体箔，使得聚酰胺酸膜和导体 彼此接触或两个聚酰胺酸膜彼此接触，进行酰亚胺化，然后在导体箔中形成所需图案; 通过使聚酰胺酸膜拉伸10％以上来制造拉伸聚酰胺酸膜的方法; 以及制造用于印刷电路的柔性基板或具有覆盖层的柔性印刷电路板的方法，两者都使用所述拉伸的聚酰胺酸膜。
-
公开(公告)号：US06538100B2
公开(公告)日：2003-03-25
申请号：US09504107
申请日：2000-02-14
IPC分类号： C08G6926
CPC分类号： C08G73/1082 , C08G73/1028 , C08G73/1032
摘要： The object of the present invention is to provide a method capable of producing polyimide resins having excellent heat resistance, which can utilize inexpensive monomers and does not use solvents. The method comprises mixing, in the absence of a solvent, a diamine and at least one tetracarboxylic acid component selected from the group consisting of a tetracarboxylic acid, a tetracarboxylic acid monoanhydride and a tetracarboxylic acid dianhydride capable of forming two imide rings upon cyclization, and then heat-treating the mixture.
-
公开(公告)号：US5300763A
公开(公告)日：1994-04-05
申请号：US800569
申请日：1991-11-27
申请人： Junichiro Ito , Yoshiyuki Yamamori
发明人： Junichiro Ito , Yoshiyuki Yamamori
CPC分类号： G06K13/0875 , G06K13/08
摘要： An information recording/reproducing apparatus is provided with a shutter mechanism for closing and opening an insertion slot formed on a wall of a housing to insert/eject an information recording medium into/from the housing. The shutter mechanism includes a first member which is movable in a first direction perpendicular to a second direction in which the information recording medium is inserted into the slot of the housing, the first member being movable between a slot open and a slot closed position. A second member is fixed on the housing and is selectively either contacting the first member in the slot closed position or being spaced away from the first member in the slot open position. A slanted surface, which is slanted or inclined with respect to the first and the second directions, is formed on the first member such that the first and second members contact each other on the slanted surface when the first member is in the slot closed position. A seal member, made of elastic material, is preferably fixed to the slanted surface for sealing the slot when the slot is closed. The slanted surface has a recess which has an abutment surface almost vertical to the second direction, so as to effectively block entry of an information recording medium when the slot is closed.
摘要翻译： 信息记录/重放装置设置有用于关闭和打开形成在壳体的壁上的插槽的快门机构，以将信息记录介质插入/从壳体中排出。 快门机构包括第一构件，该第一构件可以在垂直于第二方向的第一方向上移动，在第二方向上，信息记录介质插入到壳体的狭槽中，第一构件可在开槽位置和狭槽关闭位置之间移动。 第二构件固定在壳体上，并且选择性地在狭槽关闭位置接触第一构件或者在狭槽打开位置与第一构件间隔开。 相对于第一和第二方向倾斜或倾斜的倾斜表面形成在第一构件上，使得当第一构件处于槽关闭位置时，第一构件和第二构件在倾斜表面上彼此接触。 由弹性材料制成的密封构件优选地固定到倾斜表面上，以在狭槽闭合时密封槽。 倾斜面具有与第二方向大致垂直的抵接面的凹部，能够有效地阻止信息记录介质在狭缝闭合时的进入。
-
-
搜索结果
3 条记录 (耗时 0.021 秒)
