JPS6431448A - Lead frame and manufacture thereof - Google Patents
Lead frame and manufacture thereofInfo
- Publication number
- JPS6431448A JPS6431448A JP18862587A JP18862587A JPS6431448A JP S6431448 A JPS6431448 A JP S6431448A JP 18862587 A JP18862587 A JP 18862587A JP 18862587 A JP18862587 A JP 18862587A JP S6431448 A JPS6431448 A JP S6431448A
- Authority
- JP
- Japan
- Prior art keywords
- lead frame
- partial plating
- recess
- boundary
- leads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Lead Frames For Integrated Circuits (AREA)
Abstract
PURPOSE:To obtain a lead frame having a boundary position accuracy of a partial plating at leads by providing a recess on a boundary between the partial plating part and a nonplating part, and plating at least the partial plating part including a recess. CONSTITUTION:A lead frame 10 has a tab 8 for placing an IC element or the like, and leads 7 electrically connected by wire bonding to an IC element at the ends 9 of the leads and electrically connected to an external device via outer leads 11 of other end, a recess 2 provided on a boundary between a partial plating part 3 and a nonplating part, and at least the partial plating part including the recess 2 is plated. Accordingly, the step between the recess 2 formed by coining and the surface of the lead frame is positively utilized as the boundary between the partial plating part 3 and the nonplating part to obtain the lead frame having high partial plating position accuracy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18862587A JPS6431448A (en) | 1987-07-28 | 1987-07-28 | Lead frame and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18862587A JPS6431448A (en) | 1987-07-28 | 1987-07-28 | Lead frame and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6431448A true JPS6431448A (en) | 1989-02-01 |
Family
ID=16226962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18862587A Pending JPS6431448A (en) | 1987-07-28 | 1987-07-28 | Lead frame and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6431448A (en) |
-
1987
- 1987-07-28 JP JP18862587A patent/JPS6431448A/en active Pending
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