JPS5812970U - printed wiring board - Google Patents

printed wiring board

Info

Publication number
JPS5812970U
JPS5812970U JP10757281U JP10757281U JPS5812970U JP S5812970 U JPS5812970 U JP S5812970U JP 10757281 U JP10757281 U JP 10757281U JP 10757281 U JP10757281 U JP 10757281U JP S5812970 U JPS5812970 U JP S5812970U
Authority
JP
Japan
Prior art keywords
wiring board
printed wiring
resistors
trimming
necessary
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
JP10757281U
Other languages
Japanese (ja)
Inventor
信彦 江口
長井　紀彦
豊 小宮山
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP10757281U priority Critical patent/JPS5812970U/en
Publication of JPS5812970U publication Critical patent/JPS5812970U/en
Pending legal-status Critical Current

Links

Landscapes

  • Parts Printed On Printed Circuit Boards (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図は一個所の抵抗のみが異る一例の電子回
路図、第３図は本考案の一実施例を示すもので、第１図
、第２図の回路を印刷配線基板にした平面図、第４図は
レーザトリミング後を示す印刷配線基板の平面図、゛第
５図は第１図に示す回路図を実現した電子回路基板の平
面図を示す。 １・・・・・・印刷配線基板、２・・・・・・セラミッ
ク基板、３・・・・・・導体層、４．　５．　６．　７
．　８・・・・・・抵抗体、９・・・・・・レーザトリ
ミングによる溝、１０・・・・・・トランジスタ。Figures 1 and 2 are electronic circuit diagrams that differ only in one resistance, and Figure 3 shows an embodiment of the present invention. FIG. 4 is a plan view of the printed wiring board after laser trimming, and FIG. 5 is a plan view of the electronic circuit board realizing the circuit diagram shown in FIG. 1. 1... Printed wiring board, 2... Ceramic substrate, 3... Conductor layer, 4. 5. 6. 7
．． 8... Resistor, 9... Groove by laser trimming, 10... Transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機種ごとに必要な抵抗体をすべて印刷により形成し、必
要な抵抗体はトリミングにより調整し、不要な抵抗体は
トリミングにより切断できるようにした複数の機種に共
通して用いることができる印刷配線基板。A printed wiring board that can be used commonly for multiple models, with all the necessary resistors for each model formed by printing, necessary resistors adjusted by trimming, and unnecessary resistors cut by trimming. .
JP10757281U 1981-07-20 1981-07-20 printed wiring board Pending JPS5812970U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10757281U JPS5812970U (en) 1981-07-20 1981-07-20 printed wiring board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10757281U JPS5812970U (en) 1981-07-20 1981-07-20 printed wiring board

Publications (1)

Publication Number Publication Date
JPS5812970U true JPS5812970U (en) 1983-01-27

Family

ID=29902002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10757281U Pending JPS5812970U (en) 1981-07-20 1981-07-20 printed wiring board

Country Status (1)

Country Link
JP (1) JPS5812970U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6199220A (en) * 1984-10-22 1986-05-17 松下電器産業株式会社 Keyboard switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5116463A (en) * 1975-06-19 1976-02-09 Nippon Denso Co TEIKO CHOSEIHOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5116463A (en) * 1975-06-19 1976-02-09 Nippon Denso Co TEIKO CHOSEIHOHO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6199220A (en) * 1984-10-22 1986-05-17 松下電器産業株式会社 Keyboard switch

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