JPS6398178A - Metal base printed wiring board - Google Patents
Metal base printed wiring boardInfo
- Publication number
- JPS6398178A JPS6398178A JP24445786A JP24445786A JPS6398178A JP S6398178 A JPS6398178 A JP S6398178A JP 24445786 A JP24445786 A JP 24445786A JP 24445786 A JP24445786 A JP 24445786A JP S6398178 A JPS6398178 A JP S6398178A
- Authority
- JP
- Japan
- Prior art keywords
- printed wiring
- wiring board
- layer
- metal plate
- metal
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 31
- 239000002184 metal Substances 0.000 title claims description 31
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 25
- 230000002265 prevention Effects 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Insulated Metal Substrates For Printed Circuits (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
[技術分野1
本発明は紋り加工を施した金属ベースプリント配線板に
関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a metal-based printed wiring board that has been subjected to a patterning process.
[背景技術1
在米上り、例えばけい素鋼板などの金属板をベースとし
て耐熱性、難へ性、シールド効果、機械的強度、熱放故
性に優れた金属ベースプリント配線板が提供されている
が、このようなプリント配線板を曲げ絞り加工すると、
屈曲部においてけい素鋼板に予め形成されている無磯賀
層からなる防錆層に微少クラックが発生し、湿気などに
より錆が者しく発生してしまい耐錆信頼性が乏しくなっ
ていた。[Background technology 1] Metal-based printed wiring boards are available in the United States, which are based on metal plates such as silicon steel plates and have excellent heat resistance, resistance to damage, shielding effects, mechanical strength, and heat dissipation properties. However, when such a printed wiring board is bent and drawn,
Microcracks occurred in the anti-rust layer made of a non-isoga layer pre-formed on the silicon steel plate at the bent portions, and rust increased due to humidity, resulting in poor rust resistance reliability.
[発明の目的]
本発明は上記事情に鑑みて為されたものであり、その目
的とするところは、金属ベースプリント配線板において
、曲げ絞り加工における屈曲部の防錆性を確保すること
にある。[Object of the Invention] The present invention has been made in view of the above circumstances, and its purpose is to ensure rust prevention of bent portions during bending and drawing in metal-based printed wiring boards. .
[発明の開示]
本発明の金属ベースプリント配線板は、金属板1に絶縁
層2を介して導体パターン3を形成した金属ベースプリ
ント配線板であって、*載板1の露出面1aに1次防錆
M4を形成すると共に曲げ紋り加工に際して屈曲される
金属板1の屈曲部5の露出面5a側に2次防&4層6を
形成させて成ることを特徴とするものであり、この構成
により上記目的を達成できたものである。即ち、曲げ絞
り加工により金属板1の屈曲部5の1次防錆層4にクラ
ックが発生したとしても、2次防錆N6によリフラック
を被覆して、湿気などの金属板1への浸入を防いで防錆
性を確保できるものである。[Disclosure of the Invention] The metal-based printed wiring board of the present invention is a metal-based printed wiring board in which a conductor pattern 3 is formed on a metal plate 1 via an insulating layer 2, and *1 is formed on the exposed surface 1a of the mounting board 1. It is characterized by forming a secondary rust prevention M4 and also forming a secondary & fourth layer 6 on the exposed surface 5a side of the bent portion 5 of the metal plate 1 which is bent during the bending process. With this configuration, the above objectives were achieved. That is, even if cracks occur in the primary rust prevention layer 4 of the bent portion 5 of the metal plate 1 due to bending and drawing, the reflux is covered with the secondary rust prevention N6 to prevent moisture from entering the metal plate 1. It is possible to prevent rust and ensure rust prevention.
以下、本発明を添付の図面に示す実施例に基づいて説明
する。本発明で使用する金属板1としては鉄、アルミニ
ウム、銅、ニッケル又はこれらの合金等、いずれをも採
用できる。この金属板1には露出面1al二1次防錆層
4が設けられている。Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. The metal plate 1 used in the present invention may be made of iron, aluminum, copper, nickel, or an alloy thereof. This metal plate 1 is provided with a second primary antirust layer 4 on the exposed surface 1al.
この金属板1の露出面1aと反対側面にはプリプレグの
ような絶し*層2を介して、例えば、アルミニウム?L
mW、ステンレス箔、ニッケル箔、鉄箔のような金In
INが貼着され、常法により導体パターン3が形成され
て金属ベースプリント配線板Aが形成される。この金属
ベースプリント配線板Aは、実用に際しては曲げ絞り加
工により凹部7が形r&される。そして、曲げ絞り加工
に際して屈曲される金属板1の屈曲部5の露出面5a側
に2次防錆N6が形成されている。2人助tII層6と
してはエポキシ樹脂のような有機質層とか水〃ラスのよ
うな無機質層で形成される。この2次防錆層6は有機質
層で形成する場合には曲げ絞り加工を行う前後のいずれ
であってもよく、無機質層で形成する場合には曲げ絞り
加工後に設けるのがよい。On the opposite side of the metal plate 1 to the exposed surface 1a, a continuous layer 2 such as prepreg, for example, aluminum? L
mW, gold In like stainless steel foil, nickel foil, iron foil
IN is pasted, and a conductive pattern 3 is formed by a conventional method to form a metal base printed wiring board A. In this metal-based printed wiring board A, in practical use, the recess 7 is formed by bending and drawing. A secondary rust preventive layer N6 is formed on the exposed surface 5a side of the bent portion 5 of the metal plate 1 that is bent during the bending and drawing process. The two-layer TII layer 6 is formed of an organic layer such as epoxy resin or an inorganic layer such as water glass. This secondary anti-corrosion layer 6 may be formed either before or after bending and drawing when formed from an organic layer, and preferably after bending and drawing when formed from an inorganic layer.
このようにして形成して曲げ絞り加工を施した金属ベー
スプリント配線板Aを温度60“C1湿度9595の条
件下に配置して屈曲部5の防錆効果を測定したところ、
2次防錆)tI6がエポキシ樹脂で形成されたものにあ
っては、500hr後にも錆が発生しなかった。又、2
次防錆ノー6を水ガラスで形成したものにあっても50
0hrf&にも錆は発生しなかった。The metal-based printed wiring board A formed in this manner and subjected to bending and drawing processing was placed under conditions of a temperature of 60 cm and a humidity of 9595 cm, and the rust prevention effect of the bent portion 5 was measured.
Secondary rust prevention) In the case where tI6 was formed of epoxy resin, no rust occurred even after 500 hours. Also, 2
50% even if Rustproof No. 6 is made of water glass.
No rust occurred at 0hrf&.
一方、1次防錆/C4だけで、2次防錆/C46を形成
しないものにあっては、481+r後に赤錆が多く発生
した。尚、屈曲g5の曲率半径は3+aa+であった。On the other hand, in the case where only the primary rust prevention/C4 was formed and the secondary rust prevention/C46 was not formed, a large amount of red rust occurred after 481+r. Note that the radius of curvature of the bend g5 was 3+aa+.
[発明の効果]
本発明−二あっては、金属板をベースにしているので、
耐熱性、難燃性、シールド効果、機械的強度、熱放散性
に優れるのはもちろんのこと、金属板をベースにしてい
るにも拘わらず、金属板の露出面に1次防錆層を形成す
ると共に曲げ絞り加工に際して屈曲される金属板の屈曲
部の露出面側に2次防錆層を形成させているので、曲げ
絞り加工により金属板の屈曲部の1次防錆層にクラック
が発生したとしても、2次防錆層によりクラックを被覆
して、全体として湿気などの金属板への浸入を防いで防
錆性を確保でき、耐錆信頼性が者しく向上するものであ
る。[Effects of the Invention] The second aspect of the present invention is that it is based on a metal plate.
Not only does it have excellent heat resistance, flame retardancy, shielding effect, mechanical strength, and heat dissipation, but even though it is based on a metal plate, it forms a primary rust prevention layer on the exposed surface of the metal plate. At the same time, a secondary rust prevention layer is formed on the exposed surface of the bent portion of the metal plate that is bent during the bending and drawing process, so cracks will occur in the primary rust preventive layer at the bent portion of the metal plate during the bending and drawing process. Even so, by covering the cracks with the secondary rust-preventing layer, it is possible to prevent moisture from entering the metal plate as a whole, thereby ensuring rust-proofing properties, and significantly improving rust-resistant reliability.
第1図は本発明の一実施例を示す断面図であって、Aは
金属ベースプリント配線板、1は金属板、1aは露出面
、2は絶縁層、3は導体パターン、4は1次防錆層、5
は屈曲部、5aは露出面、6は2次防錆Iηである。
代理人 弁理士 石 1)艮 七
第1図FIG. 1 is a sectional view showing one embodiment of the present invention, in which A is a metal base printed wiring board, 1 is a metal plate, 1a is an exposed surface, 2 is an insulating layer, 3 is a conductive pattern, and 4 is a primary Rust prevention layer, 5
5a is the exposed surface, and 6 is the secondary rust prevention Iη. Agent Patent Attorney Ishi 1) Ai Figure 7 1
Claims (1)
金属ベースプリント配線板であって、金属板の露出面に
1次防錆層を形成すると共に曲げ絞り加工に際して屈曲
される金属板の屈曲部の露出面側に2次防錆層を形成さ
せて成ることを特徴とする金属ベースプリント配線板。(1) A metal-based printed wiring board in which a conductor pattern is formed on a metal plate through an insulating layer, and a primary rust prevention layer is formed on the exposed surface of the metal plate, and the metal plate is bent during bending and drawing. A metal-based printed wiring board characterized by forming a secondary anti-rust layer on the exposed surface side of the bent portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24445786A JPS6398178A (en) | 1986-10-15 | 1986-10-15 | Metal base printed wiring board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24445786A JPS6398178A (en) | 1986-10-15 | 1986-10-15 | Metal base printed wiring board |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6398178A true JPS6398178A (en) | 1988-04-28 |
Family
ID=17118936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24445786A Pending JPS6398178A (en) | 1986-10-15 | 1986-10-15 | Metal base printed wiring board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6398178A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006344693A (en) * | 2005-06-07 | 2006-12-21 | Fujikura Ltd | Enameled substrate for mounting luminous element, luminous element module, illumination device, indicating device and traffic signal |
JP2007195581A (en) * | 2006-01-23 | 2007-08-09 | Kyushu Hitachi Maxell Ltd | Electric shaver |
-
1986
- 1986-10-15 JP JP24445786A patent/JPS6398178A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006344693A (en) * | 2005-06-07 | 2006-12-21 | Fujikura Ltd | Enameled substrate for mounting luminous element, luminous element module, illumination device, indicating device and traffic signal |
JP4628876B2 (en) * | 2005-06-07 | 2011-02-09 | 株式会社フジクラ | Light-emitting element mounting enamel substrate, light-emitting element module, lighting device, display device, and traffic signal device |
JP2007195581A (en) * | 2006-01-23 | 2007-08-09 | Kyushu Hitachi Maxell Ltd | Electric shaver |
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