JPS59152770U

JPS59152770U - Printed board

Info

Publication number: JPS59152770U
Application number: JP4643283U
Authority: JP
Inventors: 信一小倉
Original assignee: パイオニア株式会社
Priority date: 1983-03-30
Filing date: 1983-03-30
Publication date: 1984-10-13

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

[Brief explanation of the drawing]

第１〜３図は従来のプリント基板のガス抜き構造を示す
図で、第１図はランド近傍に穴を設ける場合、第２図は
他のランド穴を利用する場合を示し、両図ともａは平面
図、ｂは断面図（ａのＡＡ矢視又はＢＢ矢視）、第３図
は半田付けの際発生ガスが逃げる状態を示す断面図、第
４図は本考案の一実施例を示す図で、ａは平面図、ｂは
断面図（ａのＣＣ矢視）、ｃは横断面図（ａのＤＤ矢視
）、ｄは半田付けの際発生ガスが逃げる状態を示す断面
図、第５図はレジスト除外部を示す平面図、第６図は銅
箔端とプリント基板端の関係における他の実施例を示す
平面図、第７図は更に別の実施例を示す平面図である。１．１ａ・・・ランド、２・・・銅箔、３・・・発生ガ
ス、４・・・プリント基板、５・・・半田、６・・・穴
、１１・・・ランド、１２・・・銅箔、１３・・・レジ
スト除外部、１４・・・プリント基板、１５・・・半田
、１６・・・穴、１７・・・レジスト、１８・・・発生
ガス。Figures 1 to 3 are diagrams showing the gas venting structure of a conventional printed circuit board. Figure 1 shows the case where a hole is provided near the land, and Figure 2 shows the case where another land hole is used. is a plan view, b is a cross-sectional view (viewed from arrow AA or arrow BB in a), FIG. 3 is a cross-sectional view showing the state in which gas generated during soldering escapes, and FIG. 4 shows an embodiment of the present invention. In the figures, a is a plan view, b is a cross-sectional view (as viewed from the CC arrow in a), c is a cross-sectional view (as viewed from the DD arrow in a), d is a cross-sectional view showing the state in which gas generated during soldering escapes, and 5 is a plan view showing a resist-excluded portion, FIG. 6 is a plan view showing another embodiment regarding the relationship between the end of the copper foil and the end of the printed circuit board, and FIG. 7 is a plan view showing still another embodiment. 1.1a... Land, 2... Copper foil, 3... Generated gas, 4... Printed circuit board, 5... Solder, 6... Hole, 11... Land, 12... - Copper foil, 13... Resist excluded portion, 14... Printed circuit board, 15... Solder, 16... Hole, 17... Resist, 18... Generated gas.

Claims

[Scope of utility model registration request]

(1) The feature includes a copper foil extending from a land on a printed circuit board to an edge of the substrate or the vicinity thereof, and a resist exclusion portion extending on the land and the copper foil to the edge of the substrate. printed circuit board.

(2) Utility model registration claim 1, characterized in that the copper foil extends to or near the edge of the hole in the substrate, and the resist exclusion portion extends to the edge of the hole. Printed circuit board as described.