JPH03236296A - Printed wiring board - Google Patents

Printed wiring board

Info

Publication number
JPH03236296A
JPH03236296A JP3289390A JP3289390A JPH03236296A JP H03236296 A JPH03236296 A JP H03236296A JP 3289390 A JP3289390 A JP 3289390A JP 3289390 A JP3289390 A JP 3289390A JP H03236296 A JPH03236296 A JP H03236296A
Authority
JP
Japan
Prior art keywords
wiring board
printed wiring
flat
leads
solder
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
JP3289390A
Other languages
Japanese (ja)
Inventor
Kazuhiko Tanabe
田辺 一彦
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP3289390A priority Critical patent/JPH03236296A/en
Publication of JPH03236296A publication Critical patent/JPH03236296A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0284Details of three-dimensional rigid printed circuit boards
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/11Printed elements for providing electric connections to or between printed circuits
    • H05K1/119Details of rigid insulating substrates therefor, e.g. three-dimensional details
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/341Surface mounted components
    • H05K3/3421Leaded components
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/40Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/4007Surface contacts, e.g. bumps

Landscapes

  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Structures For Mounting Electric Components On Printed Circuit Boards (AREA)

Abstract

PURPOSE:To prevent a short-circuit due to solder and to improve reliability and workability by providing projection parts between the lead mounting parts of a printed wiring board for mounting a flat IC. CONSTITUTION:In a printed wiring board 3 for a flat IC, projection parts 4 are provided between the mounting parts of leads 2 of the neighboring flat ICs 1. When the leads 2 of the flat IC are properly mounted on the printed wiring board 3 composed in this way to perform soldering, the projection parts 4 come between the neighboring leads so as to prevent a short-circuit by solder 5.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、フラットICを装着して接続するためのプリ
ント配線基板に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printed wiring board for mounting and connecting a flat IC.

〔従来の技術〕[Conventional technology]

従来フラットIC用のプリント配線基板は、第3図に示
すように、プリント配線基板13のフラットICのリー
ド2をはんだ付けする部分が平面的な構造となっている
In a conventional printed wiring board for a flat IC, as shown in FIG. 3, the portion of the printed wiring board 13 to which the leads 2 of the flat IC are soldered has a planar structure.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述したように、従来のプリント配線基板13は、フラ
ットICのリード2をはんだ付けする部分が平面的構造
となっているため、はんだ付けをすると、はんだ15が
隣接するリード2をショートすることがあるという欠点
がある。
As mentioned above, since the conventional printed wiring board 13 has a planar structure in which the leads 2 of the flat IC are soldered, the solder 15 may short-circuit the adjacent leads 2 when soldered. There is a drawback.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のフラットIC装着用のプリント配線基板は、フ
ラットICの各リードを半田付は部分の間に突起部を設
けたものである。
The printed wiring board for mounting a flat IC of the present invention has protrusions provided between the soldered portions of each lead of the flat IC.

〔実施例〕〔Example〕

次に本発明の実施例について図面を参照して説明する。 Next, embodiments of the present invention will be described with reference to the drawings.

第1図は本発明の一実施例の断面図、第2図は第1図の
実施例のフラットICのリードをはんだ付けする部分の
拡大断面図である。
FIG. 1 is a cross-sectional view of an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a portion to which leads of the flat IC of the embodiment of FIG. 1 are soldered.

第1図および第2図に示すように、本実施例のフラット
IC用プリント配線基板3は、隣接するフラットICI
のり−ド2の装着部分の間に突起部4を設けたものであ
る。このように構成したプリント配線基板3にフラット
ICIのリード2を適正に装着してはんだ付けを行なう
と、突起部4が隣接するリード間に入ってはんだ5によ
るショートを防止する。
As shown in FIGS. 1 and 2, the flat IC printed wiring board 3 of this embodiment is connected to adjacent flat ICs.
A protrusion 4 is provided between the mounting portions of the glued 2. When the leads 2 of the flat ICI are properly attached to the printed wiring board 3 configured as described above and soldered, the protrusions 4 enter between the adjacent leads to prevent short circuits caused by the solder 5.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明のプリント配線基板は、プ
リント配線基板のリード装着部分の間に突起部を設ける
ことにより、はんだによるショートを防止し、信頼性お
よび作業性を向上させるという効果がある。
As explained above, the printed wiring board of the present invention has the effect of preventing short circuits caused by solder and improving reliability and workability by providing protrusions between the lead attachment parts of the printed wiring board. .

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

第1図は本発明の一実施例を示す断面図、第2図は第1
図の実施例の部分拡大断面図、第3図は従来例のフラッ
トIC用立体型プリント配線基板の一例のはんだによる
ショート状態を示す拡大断面図である。 1・・・フラットIC52・・・リード、3・13・・
・プリント配線基板、4・・・突起部、5・15・・・
はんだ。
FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
FIG. 3 is a partially enlarged sectional view of the embodiment shown in the figure, and FIG. 3 is an enlarged sectional view showing a short-circuit state due to solder in an example of a conventional three-dimensional printed wiring board for a flat IC. 1...Flat IC52...Lead, 3.13...
・Printed wiring board, 4... protrusion, 5/15...
Solder.

Claims (1)

【特許請求の範囲】[Claims] フラットICのリードを装着する部分の間に突起部を設
けたことを特徴とするプリント配線基板。
A printed wiring board characterized in that a protrusion is provided between parts to which leads of a flat IC are attached.
JP3289390A 1990-02-13 1990-02-13 Printed wiring board Pending JPH03236296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3289390A JPH03236296A (en) 1990-02-13 1990-02-13 Printed wiring board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3289390A JPH03236296A (en) 1990-02-13 1990-02-13 Printed wiring board

Publications (1)

Publication Number Publication Date
JPH03236296A true JPH03236296A (en) 1991-10-22

Family

ID=12371569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3289390A Pending JPH03236296A (en) 1990-02-13 1990-02-13 Printed wiring board

Country Status (1)

Country Link
JP (1) JPH03236296A (en)

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