Resin encapsulated semiconductor device
    5.
    发明授权
    Resin encapsulated semiconductor device 失效
    树脂封装半导体器件

    公开(公告)号:US4758875A

    公开(公告)日:1988-07-19

    申请号:US266198

    申请日:1981-05-22

    摘要: Disclosed is a resin encapsulated semiconductor memory device comprising a semiconductor memory element, a package encapsulating the memory element and an .alpha.-rays shielding layer made from a water-resistant aromatic polyimide polymer, interposed between the memory element and the package, the aromatic polyimide polymer having a saturated water absorption rate of 1% or less. The polyimide polymer is exemplified as the polymer having the following recurring units: ##STR1## wherein R is an aliphatic or aromatic group; R.sub.1 and R.sub.2 are independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or CF.sub.3 ; and R.sub.3 to R.sub.6 are independently a hydrogen atom, a halogen atom or an alkyl group having 1 to 4 carbon atoms. The disclosure is also concerned with resin encapsulated semiconductor devices in which the aromatic polyimide polymer of low water absorption is used as an insulating layer or passivation film.

    摘要翻译: 公开了一种树脂封装的半导体存储器件,其包括半导体存储元件,封装存储元件的封装以及介于该存储元件与封装之间的由防水芳香族聚酰亚胺聚合物制成的α-阵列屏蔽层,芳族聚酰亚胺聚合物 饱和吸水率为1%以下。 聚酰亚胺聚合物作为具有以下重复单元的聚合物被列举:其中R是脂族或芳族基团; R1和R2独立地为氢原子,具有1至4个碳原子的烷基或CF 3; R 3〜R 6独立地为氢原子,卤原子或碳原子数为1〜4的烷基。 本发明还涉及使用低吸水性的芳族聚酰亚胺聚合物作为绝缘层或钝化膜的树脂封装的半导体器件。

    Dynamoelectric machine having coil windings and core encapsulated with
resin-filler composition
    7.
    发明授权
    Dynamoelectric machine having coil windings and core encapsulated with resin-filler composition 失效
    具有线圈绕组的动力电机和用树脂填料组合物封装的芯体

    公开(公告)号:US4128527A

    公开(公告)日:1978-12-05

    申请号:US787098

    申请日:1977-04-13

    CPC分类号: H02K3/30 H02K3/32

    摘要: In a dynamoelectric machine having a stator assembly of coil windings and a core, a heat-dissipating, electro-insulative housing encapsulates the coil windings and the core. The housing is made of a cured molded article or material formed of a resin-filler composition which comprises a liquid unsaturated polyester resin, a finely divided calcium carbonate powder, an inorganic mineral particulate having a particle size larger than that of the calcium carbonate powder, and a chopped glass fiber, wherein the ratio by weight of the calcium carbonate to the mineral particulate is 0.3 to 4, the ratio of the weight of glass fiber to the total weight of the composition is 0.05 to 0.25, the ratio of the weight of the polyester resin to the total weight of the composition is 0.1 to 0.4 and the weight ratio of the calcium carbonate powder, the mineral particulate and the glass fiber to the total weight of the composition is 0.6 to 0.9.The disclosure is also concerned with a dynamoelectric machine having a housing made of a cured article of a composition containing a certain amount of clay powder as a separation inhibitor.

    摘要翻译: 在具有线圈绕组和芯的定子组件的电动机中,散热的电绝缘壳体封装线圈绕组和芯。 壳体由固化的模制品或由树脂填料组合物形成的材料制成,该组合物包括液体不饱和聚酯树脂,细碎碳酸钙粉末,粒径大于碳酸钙粉末的无机矿物颗粒, 和短切玻璃纤维,其中碳酸钙与矿物颗粒的重量比为0.3〜4,玻璃纤维重量与组合物总重量的比例为0.05〜0.25,重量比 聚酯树脂的组合物总重量为0.1〜0.4,碳酸钙粉末,矿物颗粒和玻璃纤维的重量比为0.6〜0.9。

    Epoxy resin composition having excellent latent hardening characteristics
    9.
    发明授权
    Epoxy resin composition having excellent latent hardening characteristics 失效
    环氧树脂组合物具有优异的潜硬化特性

    公开(公告)号:US3963796A

    公开(公告)日:1976-06-15

    申请号:US104398

    申请日:1971-01-06

    IPC分类号: C08G59/52 C08G45/06

    CPC分类号: C08G59/52 Y10S525/934

    摘要: An epoxy resin composition having a remarkably improved storage stability and an excellent hardening characteristic when heated, which comprises an epoxy resin and an aromatic amino carboxylic acid or a derivative thereof as a hardener for the epoxy resin. This composition can be molded by injection molding, heretofore being deemed inapplicable to epoxy resin compositions, whereby the molded articled of epoxy resin can be produced with a high molding efficiency.

    摘要翻译: 包含环氧树脂和芳香族氨基羧酸或其衍生物作为环氧树脂的硬化剂的具有显着提高的储存稳定性和优异的硬化特性的环氧树脂组合物。 该组合物可以通过注塑成型,迄今为止被认为不适用于环氧树脂组合物,由此可以以高模塑效率制造环氧树脂的模制接头。