JPS6455490U - - Google Patents
Info
- Publication number
- JPS6455490U JPS6455490U JP15145487U JP15145487U JPS6455490U JP S6455490 U JPS6455490 U JP S6455490U JP 15145487 U JP15145487 U JP 15145487U JP 15145487 U JP15145487 U JP 15145487U JP S6455490 U JPS6455490 U JP S6455490U
- Authority
- JP
- Japan
- Prior art keywords
- pads
- spacing
- view
- chip
- circuit board
- 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.)
- Granted
Links
- 239000013078 crystal Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Electric Clocks (AREA)
Description
第１図は本考案の電子時計用回路ブロツクの一
実施例を示す平面図。第２図ａは第１図の断面図
であり、第２図ｂはその部分断面図。第３図は本
考案の他の実施例を示す平面図。第４図は、水晶
発振回路の構成例を示す回路図。第５図はその等
価回路図。第６図ａはフエイスダウンボンデイン
グの断面図であり、第６図ｂは、その部分断面図
。第７図ａはギヤングボンデイングの断面図であ
り、第７図ｂの部分断面図。
１……ＩＣチツプ、１ａ，１ｂ……水晶振動子
用パツド、２……水晶振動子、３……回路基板、
４……モールド剤。
FIG. 1 is a plan view showing one embodiment of the circuit block for an electronic timepiece according to the present invention. FIG. 2a is a sectional view of FIG. 1, and FIG. 2b is a partial sectional view thereof. FIG. 3 is a plan view showing another embodiment of the present invention. FIG. 4 is a circuit diagram showing a configuration example of a crystal oscillation circuit. Figure 5 is its equivalent circuit diagram. FIG. 6a is a sectional view of face down bonding, and FIG. 6b is a partial sectional view thereof. FIG. 7a is a sectional view of the Guyang bonding, and FIG. 7b is a partial sectional view. 1...IC chip, 1a, 1b...crystal resonator pad, 2...crystal resonator, 3...circuit board,
4...Molding agent.
Claims (1)
かのパツド間隔よりも大きく設定したＩＣチツプ
をモールド剤を介して回路基板に装着したことを
特徴とする電子時計用回路ブロツク。 A circuit block for an electronic watch, characterized in that an IC chip in which the spacing between two pads for a crystal oscillator is set larger than the spacing between any other pads is mounted on a circuit board via a molding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987151454U JPH0749433Y2 (en) | 1987-10-02 | 1987-10-02 | Electronic clock circuit block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987151454U JPH0749433Y2 (en) | 1987-10-02 | 1987-10-02 | Electronic clock circuit block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6455490U true JPS6455490U (en) | 1989-04-05 |
| JPH0749433Y2 JPH0749433Y2 (en) | 1995-11-13 |
Family
ID=31425512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987151454U Expired - Lifetime JPH0749433Y2 (en) | 1987-10-02 | 1987-10-02 | Electronic clock circuit block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749433Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769265U (en) * | 1980-10-14 | 1982-04-26 | ||
| JPS59120884A (en) * | 1982-12-27 | 1984-07-12 | Seiko Epson Corp | Resin sealing construction of circuit block for wrist watch |
-
1987
- 1987-10-02 JP JP1987151454U patent/JPH0749433Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769265U (en) * | 1980-10-14 | 1982-04-26 | ||
| JPS59120884A (en) * | 1982-12-27 | 1984-07-12 | Seiko Epson Corp | Resin sealing construction of circuit block for wrist watch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749433Y2 (en) | 1995-11-13 |
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