JPS6358270A - Inspecting instrument for printed wiring board - Google Patents
Inspecting instrument for printed wiring boardInfo
- Publication number
- JPS6358270A JPS6358270A JP61201436A JP20143686A JPS6358270A JP S6358270 A JPS6358270 A JP S6358270A JP 61201436 A JP61201436 A JP 61201436A JP 20143686 A JP20143686 A JP 20143686A JP S6358270 A JPS6358270 A JP S6358270A
- Authority
- JP
- Japan
- Prior art keywords
- printed wiring
- wiring board
- probe
- circuit pattern
- protection sheet
- 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
- 239000000523 sample Substances 0.000 claims abstract description 29
- 238000007689 inspection Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 1
- 238000007373 indentation Methods 0.000 abstract description 3
- 230000005856 abnormality Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、プリント配線板の検査装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printed wiring board inspection device.
プリント配線板の実装の高密度化にともない、電子部品
を実装したのち、その特性を検査したのではむだが多く
なるため、プリント配線板に形成された回路パターンを
、プリント配線板単体で検査したのち電子部品を実装す
ることが提案されている。With the increasing density of printed wiring boards, inspecting the characteristics of electronic components after mounting them would result in a lot of waste, so the circuit patterns formed on the printed wiring boards were inspected as a single printed wiring board. Later, it was proposed to mount electronic components.
そして、量産されるプリント配線板の検査は、専用の検
査治具を用いて行なわれているが、この検査治具は、高
価である。Inspection of mass-produced printed wiring boards is performed using a dedicated inspection jig, but this inspection jig is expensive.
このため、中小量生産のプリント配線板の検査は、一対
のプローブをプリント配線板に形成された回路パターン
の両端に轟て、その間の導通の有の
無あるいは抵抗置台測定を行なっている。For this reason, when inspecting printed wiring boards produced in small to medium-sized quantities, a pair of probes is placed at both ends of a circuit pattern formed on the printed wiring board, and the presence or absence of continuity therebetween is measured using a resistance mounting stand.
このような検査装置では、検査作条の効率化のため、回
路パターンにプローブを高速で衝突させて検査を行なっ
ているため、回路パターンにプローブの圧痕が付き、プ
リント配線板の品質を低下させる問題があった。In order to improve the efficiency of inspection strips, such inspection equipment performs inspection by colliding the probe with the circuit pattern at high speed, which causes impressions of the probe on the circuit pattern, reducing the quality of the printed wiring board. There was a problem.
本発明の目的は、上記の問題点に鑑み、プリント配線板
の回路パターンにプローブの圧痕を付けることなく検査
できるようにしたプリント配線板の検査装置を提供する
にある。SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a printed wiring board inspection apparatus that is capable of inspecting a circuit pattern of a printed wiring board without making an impression with a probe.
上記目的を達成するだめの本発明の手段を実施例に対応
する第１図に基づいて説明する。The means of the present invention for achieving the above object will be explained based on FIG. 1, which corresponds to an embodiment.
同図において、１は検を装置のテーブルで、導電板２の
上に誘電体で形成された絶縁板３が固定されている。４
はテーブル１上に載置されたプリント配線板。５はプリ
ント配線板４の検査面を覆う、保護シートで、加圧導電
弾性体で形成されている。６はプローブ、７は導電板２
およびプローブ６に接続された電線、８はスロープ６と
導電板２の間に接続された静電容量計、９はプローブ６
の間に接続された抵抗計である。In the figure, reference numeral 1 denotes a table of an inspection apparatus, and an insulating plate 3 made of a dielectric material is fixed onto a conductive plate 2. 4
is a printed wiring board placed on table 1. A protective sheet 5 covers the inspection surface of the printed wiring board 4 and is made of a pressurized conductive elastic material. 6 is a probe, 7 is a conductive plate 2
and an electric wire connected to the probe 6, 8 a capacitance meter connected between the slope 6 and the conductive plate 2, 9 a probe 6
A resistance meter is connected between the two.
そして、プローブ６を保護シート５の上に衝突させると
、保護シート５０プローブ６によって加圧された部分が
導電性を持ち、プローブ６とプリント配線板４の回路パ
ターンを電気的に接続する。When the probe 6 collides with the top of the protective sheet 5, the portion of the protective sheet 50 pressed by the probe 6 becomes conductive, electrically connecting the probe 6 and the circuit pattern of the printed wiring board 4.
したがって、プローブ６間の抵抗値、あるいは導電板２
とプリント配線板４の回路パターンの間の静電容量値を
検査することができる。Therefore, the resistance value between the probes 6 or the conductive plate 2
The capacitance value between the circuit pattern of the printed wiring board 4 and the circuit pattern of the printed wiring board 4 can be inspected.
このとき、プローブ６がプリント配線板４の回路パター
ンに直に接触しないので、回路パターンに圧痕を残すこ
とがない。At this time, since the probe 6 does not directly contact the circuit pattern of the printed wiring board 4, no impression is left on the circuit pattern.
以下、本発明の一実施例を第１図および第２図に基づい
て説明する。Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 and 2.
同図において、１はテーブルで導電板２の上に誘電体で
形成された絶叙板３が接着固定されている。４はテーブ
ル１上に載置されたプリント配線板。５はプリント配線
板４の検査面を覆う保護シートで、加圧４を弾性体で形
成されている。６は検査装置のプローブ。７は電線。８
は′導電板２とプローブ６の間に接続された静電容量計
。９はプローブ６の間に接続された抵抗計。１０はテー
ブル１に沼って配置されたレール。１１はレール１０に
沿って移動するビーム。１２はビーム１１に移動可能に
支持されたキャリッジ。このキマリッジ１２にプローブ
６が支持されている。In the figure, reference numeral 1 denotes a table, and a conductive plate 2 has a dielectric plate 3 fixed thereto by adhesive. 4 is a printed wiring board placed on table 1. 5 is a protective sheet that covers the inspection surface of the printed wiring board 4, and the pressure member 4 is made of an elastic material. 6 is the probe of the inspection device. 7 is an electric wire. 8
is a capacitance meter connected between the conductive plate 2 and the probe 6. 9 is a resistance meter connected between probes 6; 10 is a rail arranged in a swamp on table 1. 11 is a beam that moves along the rail 10; 12 is a carriage movably supported by the beam 11; A probe 6 is supported on this Kimematic ridge 12 .
このような構成で、ビーム１１とキャリッジ１２を互い
に直交する方向に移動させて、プローブ６を所定の順序
で所要の載置に位置決めし、たのち、保護シート５に押
付ける。すると、保護シート５の加圧された部分が導電
性を持ち、プローブ６とプリント配線板４の回路パター
ンとを電気的（（接続する。この状態で、静電容量計８
、抵抗計９により、導電板２とプリント配線板４の間の
静電容量、あるいは回路パターンの抵抗を計り、回路パ
ターンの異常の有無を検査する。With such a configuration, the beam 11 and the carriage 12 are moved in directions orthogonal to each other, the probes 6 are positioned in a predetermined order at a desired location, and are then pressed against the protective sheet 5. Then, the pressurized portion of the protective sheet 5 becomes conductive, electrically connecting the probe 6 and the circuit pattern of the printed wiring board 4. In this state, the capacitance meter 8
The capacitance between the conductive plate 2 and the printed wiring board 4 or the resistance of the circuit pattern is measured using the resistance meter 9 to check whether there is any abnormality in the circuit pattern.
上述のように、プローブ６をプリント配線板４の回路パ
ターンに直に接触させることなく検査を行なうことがで
きるので、プローブ６の衝突による圧痕の発生を防止す
ることができる。As described above, since the inspection can be performed without bringing the probe 6 into direct contact with the circuit pattern of the printed wiring board 4, it is possible to prevent the occurrence of impressions due to collisions of the probe 6.
以上述べた如く、本発明によれば、プリント配線板にプ
ローブの圧痕を付けることなく検査を行なうことができ
る。As described above, according to the present invention, an inspection can be performed without making any indentation of a probe on a printed wiring board.
第１図は、本発明の要部を示す拡大図、第２図は、プリ
ント配線板の検査装置の斜視図である。FIG. 1 is an enlarged view showing essential parts of the present invention, and FIG. 2 is a perspective view of a printed wiring board inspection apparatus.
Claims (1)
行なうようにしたプリント配線板の検査装置において、
プリント配線板のプローブが接触する面に、加圧導電弾
性体から成る保護シートを設けたことを特徴とするプリ
ント配線板の検査装置。1. In a printed wiring board inspection device that tests by pressing a probe against the conductor of the printed wiring board,
A printed wiring board inspection device characterized in that a protective sheet made of a pressurized conductive elastic material is provided on the surface of the printed wiring board that the probe comes into contact with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61201436A JPS6358270A (en) | 1986-08-29 | 1986-08-29 | Inspecting instrument for printed wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61201436A JPS6358270A (en) | 1986-08-29 | 1986-08-29 | Inspecting instrument for printed wiring board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6358270A true JPS6358270A (en) | 1988-03-14 |
Family
ID=16441056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61201436A Pending JPS6358270A (en) | 1986-08-29 | 1986-08-29 | Inspecting instrument for printed wiring board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6358270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201398B1 (en) | 1996-03-28 | 2001-03-13 | Oht Inc. | Non-contact board inspection probe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535577U (en) * | 1978-08-31 | 1980-03-07 | ||
| JPS5798869A (en) * | 1980-12-12 | 1982-06-19 | Fujitsu Ltd | Checking method for continuity of printed board circuit |
-
1986
- 1986-08-29 JP JP61201436A patent/JPS6358270A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535577U (en) * | 1978-08-31 | 1980-03-07 | ||
| JPS5798869A (en) * | 1980-12-12 | 1982-06-19 | Fujitsu Ltd | Checking method for continuity of printed board circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6201398B1 (en) | 1996-03-28 | 2001-03-13 | Oht Inc. | Non-contact board inspection probe |
| US6373258B2 (en) | 1996-03-28 | 2002-04-16 | Naoya Takada | Non-contact board inspection probe |
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