JPS5596659A - Circuit for watch - Google Patents

Circuit for watch

Info

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
Application number
JP339279A
Other languages
Japanese (ja)
Inventor
Hiroyuki Mabuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP339279A priority Critical patent/JPS5596659A/en
Publication of JPS5596659A publication Critical patent/JPS5596659A/en
Pending legal-status Critical Current

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
JP339279A 1979-01-18 1979-01-18 Circuit for watch Pending JPS5596659A (en)

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)

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