Manufacturing of carrier tape useful for ic
专利汇可以提供Manufacturing of carrier tape useful for ic专利检索，专利查询，专利分析的服务。并且PURPOSE: To provide a novel carrier tape in which the conductor pattern-forming areas and foil-preserving areas on the upper surface of a conductor foil and the bump-forming areas and foil-preserving areas on the back surface of the same conductor foil are covered with resist; only the upper surface is etched to half depth, while exposed areas are etched off, so that bumps are intergrally formed on the side opposite to the patterns.
CONSTITUTION: Conductor foil tape 1 is coated with photoresist 3. Patterns are sticked on the coated surface, followed by development. From the upper surface of foil 1, resist 4 corresponding to the area where the pattern would not be formed within a device hole is removed, while from the back surface of foil 1, resist 5 corresponding to the area where the bump would not be formed within the device hole is removed. Then both the upper and the back of the tape are subjected to suimultaneous ething, producing an ethed area 8 having a thickness necessary for the formation of bumps. Thus a bump-forming area 6 and the exterion of the device hole 9 have the same thickness as foil 1. All resists remaining unremoved are then peeled off. The resultant composite is tin-plated to finish a film-less and bump- provided IC carrier tape, which, having no organic films to cover but having excellent electrical and mechanical properties, is highly resistant to heat.
COPYRIGHT: (C)1980,JPO&Japio，下面是Manufacturing of carrier tape useful for ic专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种二极管老化筛选仪 | 2020-05-11 | 917 |
| 一种堆叠式芯片封装结构及其封装方法 | 2020-05-08 | 90 |
| 电子芯片封装结构及其方法 | 2020-05-08 | 661 |
| 长程面形检测仪及检测方法 | 2020-05-11 | 575 |
| 一种显示装置及其制作方法 | 2020-05-08 | 854 |
| 一种应用于高功率光纤激光器的装配固定结构 | 2020-05-08 | 242 |
| 一种新型便于操作电路板焊接组件 | 2020-05-11 | 446 |
| 一种可快速拆装的环保垭口门套板 | 2020-05-12 | 627 |
| 一种散热配电箱 | 2020-05-11 | 692 |
| 一种双层膜内电子电路结构体 | 2020-05-11 | 29 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
