JPS5596659A - Circuit for watch - Google Patents
Circuit for watchInfo
- Publication number
- JPS5596659A JPS5596659A JP339279A JP339279A JPS5596659A JP S5596659 A JPS5596659 A JP S5596659A JP 339279 A JP339279 A JP 339279A JP 339279 A JP339279 A JP 339279A JP S5596659 A JPS5596659 A JP S5596659A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- watch
- frame
- onto
- resin
- 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
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
Abstract
PURPOSE: To enhance the circuit production efficiency of a watch by protecting only IC mounting portion with transfer mold of thermosetting resin when fixing the IC chip or the like onto the circuit pattern formed with lead frame and then injection molding using thermoplastic resin.
CONSTITUTION: An entire circuit pattern is formed with lead frame 1, and a flip- flop chip IC element 2 is gang bonded onto the frame 1. The bonded portion is then transfer molded for protection in a simple shape such as cylindrical or trapezoidal shape using thermosetting resin 3. Then, the entire circuit is injection molded with thermopastic resin 4 to form a circuit base 9. Thereafter, a trimmer capacitor 5, a crystal vibrator 6, etc. are welded onto the frame 1 to form a circuit 10 for the watch.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP339279A JPS5596659A (en) | 1979-01-18 | 1979-01-18 | Circuit for watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP339279A JPS5596659A (en) | 1979-01-18 | 1979-01-18 | Circuit for watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5596659A true JPS5596659A (en) | 1980-07-23 |
Family
ID=11556083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP339279A Pending JPS5596659A (en) | 1979-01-18 | 1979-01-18 | Circuit for watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5596659A (en) |
-
1979
- 1979-01-18 JP JP339279A patent/JPS5596659A/en active Pending
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