JPS6421994A - Printed wiring board - Google Patents

Printed wiring board

Info

Publication number
JPS6421994A
JPS6421994A JP17794887A JP17794887A JPS6421994A JP S6421994 A JPS6421994 A JP S6421994A JP 17794887 A JP17794887 A JP 17794887A JP 17794887 A JP17794887 A JP 17794887A JP S6421994 A JPS6421994 A JP S6421994A
Authority
JP
Japan
Prior art keywords
mounting
hole
over
mounting hole
components
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
JP17794887A
Other languages
Japanese (ja)
Inventor
Masanobu Furukawa
Yoshiyuki Kobayashi
Masato Inoue
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.)
TOKYO PRINT KOGYO KK
Sansui Electric Co Ltd
Original Assignee
TOKYO PRINT KOGYO KK
Sansui Electric 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 TOKYO PRINT KOGYO KK, Sansui Electric Co Ltd filed Critical TOKYO PRINT KOGYO KK
Priority to JP17794887A priority Critical patent/JPS6421994A/en
Publication of JPS6421994A publication Critical patent/JPS6421994A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0094—Filling or covering plated through-holes or blind plated vias, e.g. for masking or for mechanical reinforcement
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3452—Solder masks

Landscapes

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

Abstract

PURPOSE:To enable post-mounting components to be soldered easily on a printed wiring board on which circuit components have been mounted, by applying a first paint layer on the periphery of a mounting hole on the surface of the insulating board such that it is overhung over the hole and applying a second conductor layer over the first one so as to cover the end faces of the mounting hole. CONSTITUTION:A conducting circuit 2 is formed on the rear face of an insulating board 1 which is provided with mounting holes 3 through which leads 12 of circuit components 11 are inserted. A first paint layer 4 is applied on the periphery of the mounting hole 3 on the surface of the board 1 such that it is overhung over the hole 3. Further, a second paint layer 5 is applied over the first layer 4 so as to cover the end face of the mounting hole 3. Thereby, the mounting holes in which circuit components are not inserted in the first soldering process are prevented from being filled with solder when the first soldering process is carried out in a soldering bath. Accordingly, post-mounting components can be mounted easily without the need of secondary treatments such as removal of the solder from the mounting holes.
JP17794887A 1987-07-16 1987-07-16 Printed wiring board Pending JPS6421994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17794887A JPS6421994A (en) 1987-07-16 1987-07-16 Printed wiring board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17794887A JPS6421994A (en) 1987-07-16 1987-07-16 Printed wiring board

Publications (1)

Publication Number Publication Date
JPS6421994A true JPS6421994A (en) 1989-01-25

Family

ID=16039878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17794887A Pending JPS6421994A (en) 1987-07-16 1987-07-16 Printed wiring board

Country Status (1)

Country Link
JP (1) JPS6421994A (en)

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