JPS63124969A - Off-grid adapter for printed wiring board inspecting machine - Google Patents
Off-grid adapter for printed wiring board inspecting machineInfo
- Publication number
- JPS63124969A JPS63124969A JP61272575A JP27257586A JPS63124969A JP S63124969 A JPS63124969 A JP S63124969A JP 61272575 A JP61272575 A JP 61272575A JP 27257586 A JP27257586 A JP 27257586A JP S63124969 A JPS63124969 A JP S63124969A
- Authority
- JP
- Japan
- Prior art keywords
- printed wiring
- wiring board
- board
- fine adjustment
- adapter
- 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
- 238000007689 inspection Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000523 sample Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 11
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000397426 Centroberyx lineatus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001629 suppression Effects 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検査機において検査ポイントが
所定の格子上にないプリント配線板を検査する際に用い
られるプリント配線板検査機用オフグリッドアダプタに
関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an off-grid adapter for a printed wiring board inspection machine, which is used when inspecting a printed wiring board whose inspection points are not on a predetermined grid. .
従来の技術
従来、検査ポイントがコ、ｊ４’ｌｌＢ等の所定の格子
上にあるプリント配線板の布線状態すなわち導通、断線
状態を検査する汎用プリント配線板検査機が知られてお
り、所定の格子上にかい検査ポイントのあるプリント配
線板をも検査するために汎用プリント配線板検査機にオ
フグリッドアダプタが用いられる。2. Description of the Related Art Conventionally, a general-purpose printed wiring board inspection machine is known that inspects the wiring condition, that is, the conduction and disconnection condition, of a printed wiring board whose inspection points are on a predetermined grid such as ko, j4'llb, etc. Off-grid adapters are used in general-purpose printed wiring board inspection machines to inspect even printed wiring boards that have scratch inspection points on a grid.
ところで、近年、プリント配線板の布線状態はブラシ）
ＩＣ，チップ部品等の使用により高密度化してきており
、それに対応すぺ〈様々なオフグリッド構造が提案され
ている。By the way, in recent years, the wiring condition of printed wiring boards is brush
The use of ICs, chip components, etc. has led to higher density, and in response to this, various off-grid structures have been proposed.
この糧のオフグリッドとしては、高密度の検査ポイント
の部分をブロック化したもの、オフグリッドアダプタの
専用ボード（プリント配線板の検査ポイントと同じ位置
く孔があけられたボード）に細かいスプリングプローブ
を植立させたもの。Off-grid devices that can be used for this purpose include blocks with high-density inspection points, and fine spring probes on a special board for off-grid adapters (a board with holes drilled at the same positions as the inspection points on the printed wiring board). What was planted.
あるいはアダプタピン自体を細くしたものなどが提案さ
れている。Alternatively, an adapter pin in which the adapter pin itself is made thinner has been proposed.
発明が解決しようとする問題点
しかしながら、このように提案されたオフグリッドアゲ
ブタはいずれもプリント配線板に対して固定化されてお
り、プリント配線板の製造誤差、精度等を何ら考慮して
いないという問題があった。Problems to be Solved by the Invention However, all of the off-grid swallowtail machines proposed in this way are fixed to the printed wiring board, and do not take into account manufacturing errors, precision, etc. of the printed wiring board. There was a problem.
近年の高密度化されたプリント配線板をオフグリッドア
ダプタで正確に検査するためにはプリント配線板の製造
誤差、精度等を考慮したものが必要とされる。In order to accurately inspect recent high-density printed wiring boards using off-grid adapters, it is necessary to consider manufacturing errors, precision, etc. of printed wiring boards.
本発明は、プリント配線板の位置を微調整することがで
きてプリント配線板の製造誤差、精度等を勘案すること
の可能なプリント配線板検査機用オフグリッドアダプタ
を提供することを目的としている。An object of the present invention is to provide an off-grid adapter for a printed wiring board inspection machine that can finely adjust the position of a printed wiring board and take manufacturing errors, precision, etc. of the printed wiring board into consideration. .
問題点を解決するための手段
本発明は、プリント配線板の検査ポイントにアダプタビ
ンの先端を接触させてプリント配線板を検査するプリン
ト配線板検査機用オフグリッドアダプタにおいて、アダ
プタビンをプリント配線板の検査ポイントに案内する専
用ボードと、プリント配線板を微小移動させるために専
用ボード上に設けられた微調板と、プリント配線板の取
付けられた微調板を微小移動させる微調機構とを具備し
たことを特徴とするプリント配線板検査機用オフグリッ
ドアダプタである。Means for Solving the Problems The present invention provides an off-grid adapter for a printed wiring board inspection machine that inspects a printed wiring board by bringing the tip of the adapter bin into contact with an inspection point on the printed wiring board. Equipped with a dedicated board that guides the printed wiring board to the inspection point, a fine adjustment board provided on the dedicated board to slightly move the printed wiring board, and a fine adjustment mechanism that moves the fine adjustment board to which the printed wiring board is attached. This is an off-grid adapter for printed wiring board inspection machines featuring the following.
実施例 以下に本発明の実施例を図面を用いて説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明のプリント配線板検査機用オフグリッド
アダプタの一実施例の斜視図、第一図は第１図に示すプ
リント配線板検査機用オフグリッドアダプタの断面図、
第３図けＸ、Ｙ微調機構を示す図、第蓼図は微調板を示
す図、第５図（ａ）、（ｂ）はそれぞれガイドビン、ガ
イドプレートを示す図、第６図は微調板固定ビスを示す
図、第７図はフイクスチャを示す図、第を図はスプリン
グプローブを示す図％第テ図はメツシュボードを示す図
、第７０図はスペーサを示す図％第１／図は専用ボード
を示す図、第１コ図は固定ネジを示す図、第７３図はつ
き当て枠を示す図、第１１Ｉ図は基準ビンを示す図であ
る。FIG. 1 is a perspective view of an embodiment of an off-grid adapter for a printed wiring board inspection machine according to the present invention, and FIG. 1 is a sectional view of the off-grid adapter for a printed wiring board inspection machine shown in FIG.
Figure 3 shows the X, Y fine adjustment mechanism, Figure 3 shows the fine adjustment plate, Figures 5 (a) and (b) show the guide bin and guide plate, respectively, and Figure 6 shows the fine adjustment plate. Figure 7 shows the fixing screw, Figure 7 shows the fixture, Figure 7 shows the spring probe, Figure 7 shows the mesh board, Figure 70 shows the spacer, Figure 1/Figure shows the dedicated board. FIG. 1 is a diagram showing the fixing screw, FIG. 73 is a diagram showing the abutting frame, and FIG. 11I is a diagram showing the reference bottle.
第７図および第一図に２いて１本実施例のプント配線板
検査機用オフグリッドアダプタは、第７図に示すような
フィクスチャ上に配置されて使用されるメツシュボード
ｌと、プリント配線板−の検査ポイントと同じ位置に孔
を有する専用ボードＪと、メツシュボードｌと専用ボー
ド３とを固定するためのスペーサ４と、専用ボード３に
取付けられたＸ、Ｙ微調機構よと、専用ボード３上でプ
リント配線板−を微小移動させるための微調板６とを備
えている。7 and 1, the off-grid adapter for the Punto wiring board inspection machine according to this embodiment is used to connect a mesh board l and a printed wiring board to be used by being placed on a fixture as shown in FIG. 7. - A dedicated board J having a hole at the same position as the inspection point, a spacer 4 for fixing the mesh board L and the dedicated board 3, an X, Y fine adjustment mechanism attached to the dedicated board 3, and a dedicated board 3. A fine adjustment plate 6 is provided for finely moving the printed wiring board at the top.
本発明のオフグリッドアダプタには、従来のオフグリッ
ドアダプタと異なり、プリント配線板−の位置を微調整
するために、Ｘ、Ｙ微調機構！と。Unlike conventional off-grid adapters, the off-grid adapter of the present invention has an X, Y fine adjustment mechanism for finely adjusting the position of the printed wiring board. and.
このＸ、Ｙ微―機構３によって微小移動する微調板６と
が設けられている。A fine adjustment plate 6 that is moved minutely by this X, Y fine mechanism 3 is provided.
Ｘ、Ｙ微調機構ｊは、専用ボード３の左右に各１つづつ
取付けられ、第３図に示すように、Ｘ。The X and Y fine adjustment mechanisms j are installed one each on the left and right sides of the dedicated board 3, and as shown in FIG.
Ｙ微調用つまみｍと、このつまみにを回すことによって
Ｘ方向およびＹ方向に移動するＸ、Ｙ似調用ガイドビン
コ／とを備えている。It is equipped with a Y fine adjustment knob m and a guide bino for X and Y similar adjustment which moves in the X direction and Y direction by turning this knob.
微Ｈ１１板乙にはｇ１図に示すように、Ｘ、Ｙ微調機構
ｊＯガイドビン−／が嵌まるようになっている一つの孔
−と、プリント配線板コを位置決めするガイドピアｕａ
又はガイドプレート３ｂと、微調板固定ビス用の孔コタ
とが設けられている６微調板６に設けられたガイドビン
３ａ又はガイドブレート刀すはそれぞれ８ｇ３図ω、（
ｂ）Ｉｃ示すような構造をしており、軸Ｂ ａ 、又は
コｂにプリント配線板−のガイド用孔３０が嵌まるよう
になっている。これによって微調板６上にプリント配線
板コを位置決めすることができる。なおガイドビン３ａ
又はガイドプレートｕｂの形状は第Ｓ図（ａ）。As shown in Figure G1, the fine H11 board O has one hole into which the X, Y fine adjustment mechanism jO guide bin is fitted, and a guide pier ua for positioning the printed wiring board.
Or, the guide plate 3b and the hole for fixing the fine adjustment plate fixing screws are provided.The guide bin 3a or guide plate blade provided on the 6 fine adjustment plate 6 is 8g (Fig. ω), respectively.
b) It has a structure as shown in Ic, and the guide hole 30 of the printed wiring board fits into the axis B a or the axis B. This allows the printed wiring board to be positioned on the fine adjustment plate 6. Note that the guide bin 3a
Alternatively, the shape of the guide plate ub is shown in Fig. S (a).
（ｂ）に示す形状に限定されない。It is not limited to the shape shown in (b).
また微調板６に設けられた微調板固定ビス用の孔評には
第６図に示すような微調板固定ビス２６が嵌するように
なっている。この微調板固定ビス、２６は微調板６を微
小移動させた後、微ＩＭ板轟が蚕動等で移動しないよう
固定するためのものである。Further, a fine adjustment plate fixing screw 26 as shown in FIG. 6 is fitted into a hole for a fine adjustment plate fixing screw provided in the fine adjustment plate 6. The fine adjustment plate fixing screw 26 is used to fix the fine IM plate so that it does not move due to dialysis or the like after the fine adjustment plate 6 has been slightly moved.
フイクスチャ７には第７図に示すように絶縁材料からな
るボードｔにスプリング性のスプリングプローブデが植
立されている。スプリングブローブデはプリント配線板
−の検査ポイントとの間にアダプタピンｌ／を連結する
ためのものであり、第３図に詳細に示すように内部にス
プリングが内蔵され、先端部１０が矢印Ｒで示すように
伸縮自在な構造になっている。なお、先端部１０の形状
は各攬存在する。As shown in FIG. 7, the fixture 7 has a spring probe mounted on a board t made of an insulating material. The spring probe is used to connect the adapter pin l/ between the inspection point of the printed wiring board, and as shown in detail in FIG. As shown, it has a flexible structure. Note that there are various shapes of the tip portion 10.
メツシュボードｌは第９図に示すように、フイクスチャ
ク上に配置されて使用されるもので、フイクスチャクの
スプリングブロープデと同じ配列で孔／ユが明けられて
おり、絶縁材料で形成されている。このメツシュボード
ｌには前述したように、第１０図に示すスペーサ１ｕっ
て専用ボード３が取付けられる。As shown in FIG. 9, the mesh board 1 is used by being placed on the fixture, has holes in the same arrangement as the spring blades of the fixture, and is made of an insulating material. As described above, a dedicated board 3 called a spacer 1u shown in FIG. 10 is attached to this mesh board 1.
専用ボードＪＦｉ第１／図に示すように、プリント配線
板−の検査ポイントと同じ位置に孔が明けられており、
絶縁材料で形成されている。専用ボード３は、第１二図
に示す固定ネジ１３によってスペーサグに固定される。Dedicated board JFi No. 1/As shown in the diagram, holes are drilled at the same positions as the inspection points on the printed wiring board.
Made of insulating material. The dedicated board 3 is fixed to the spacerg by fixing screws 13 shown in FIG. 12.
つき当て枠侵は、抑圧板コ９がオフグリッドアダプタを
押し下げるのを構造的に阻止するものである。第７３図
に示すようにつき当て枠侵にはプリント配線板コの厚さ
忙対応させて押し下げ量の下限を調整するプレートを入
れるためのすき間、２７が設けられている。The butt frame is structurally prevented from pushing down the off-grid adapter by the suppression plate 9. As shown in FIG. 73, a gap 27 is provided in the butt frame for inserting a plate for adjusting the lower limit of the amount of depression in accordance with the thickness of the printed wiring board.
微調板６を微小移動させる必要がない場合には、第１参
図に示すような基準ピンコによって微調板６を専用ボー
ドｊｌｃＬつかりと取付ける。従って、微調板６を微小
移動させるときにはこの基準ピンコを抜かねば々らない
。If there is no need to move the fine adjustment plate 6 minutely, the fine adjustment plate 6 is attached to the dedicated board jlcL using a reference pin as shown in the first reference figure. Therefore, when the fine adjustment plate 6 is to be moved minutely, this reference pin must be removed.
このような植成のプリント配線板検査機用オフグリッド
アダプタの操作を次に説明する。The operation of such a planted off-grid adapter for a printed wiring board inspection machine will be described below.
先ず専用ボードＪ上の微調板６にプリント配線板−を配
置する。次いでオフグリッドユニットのスプリングブロ
ープデにアダプタピンｌ／を取付け。First, a printed wiring board is placed on the fine adjustment board 6 on the dedicated board J. Next, attach the adapter pin l/ to the spring brow plate of the off-grid unit.
アダプタピン／ｌの先端部がプリント配線板−の検査ポ
イントに当接するようにする。Make sure that the tip of the adapter pin/l comes into contact with the inspection point on the printed wiring board.
この際忙プリント配線板−の製造ｉｉ＃４差等によって
検査ポイントの位置が僅かにずれているとするト、アダ
プタピン／ｌの先端部は検査ポイントにり災には接触し
ない。At this time, assuming that the position of the inspection point is slightly shifted due to manufacturing differences in the printed wiring board, etc., the tip of the adapter pin/l will not come into contact with the inspection point.
アダプタピン／／の先端部を検をポイントに確実に接触
させるために微調板６′Ｊ？よびその上のプリント配線
板−をＸ方向、Ｙ方向に微小移動させる必要がある。こ
のために、基準ビンコをはずし。Fine adjustment plate 6'J? It is necessary to move the board and the printed wiring board thereon minutely in the X and Y directions. For this purpose, remove the reference bin.
専用ボード３の左右にそれぞれ取付けられているＸ、Ｙ
微調機構！のＸ、Ｙ＠調用っまみＪを回してＸ、Ｙ微調
用ガイドピンコ／をＸ方向、Ｙ方向に移動させる。これ
によってＸ、Ｙ微調用ガイドビンコｌに嵌まっている微
調板６および微調板６に取付けられているプリント配線
板−がＸ、Ｙ方向に微小移動する。X and Y installed on the left and right sides of dedicated board 3, respectively.
Fine adjustment mechanism! Turn the X, Y @ adjustment knob J to move the X, Y fine adjustment guide pin/ in the X and Y directions. As a result, the fine adjustment plate 6 fitted in the X and Y fine adjustment guide pins 1 and the printed wiring board attached to the fine adjustment plate 6 are slightly moved in the X and Y directions.
このような操作をアダプタピン／／の先端部がプリント
配線板−の検査ポイントに確実に接触するまで続ける。This operation is continued until the tip of the adapter pin securely contacts the inspection point on the printed wiring board.
このように本笑見例では、専用ボードＪの左右に取付け
られたＸ、Ｙ微調機構ｊと微調板とによって、プリント
配線板−に製造誤差等があったとしても、プリント配線
板を正確に精度良く検査することができる。In this example, the X, Y fine adjustment mechanism j and fine adjustment board installed on the left and right sides of the dedicated board J allow the printed wiring board to be accurately manufactured even if there are manufacturing errors in the printed wiring board. It can be inspected with high accuracy.
上述の実施例では、Ｘ、Ｙ微調機構！を専用ボードＪの
左右に取付けたが、変形例として＠／ｊ図に示すように
Ｘ、Ｙ微調機構ｙをメツシュボード／に取付けても良い
、なお第１ｊ図において、第１図、第一図と同様の箇所
には同じ符号を付して説明を省略する。In the above embodiment, the X and Y fine adjustment mechanism! are attached to the left and right sides of the dedicated board J, but as a modification, the X, Y fine adjustment mechanism y may be attached to the mesh board/ as shown in figure @/j. The same reference numerals are given to the same parts, and the explanation is omitted.
発明の効果
以上に説明したように本発明によれば、専用ボード上に
微調板を設け、プリント配線板を取付けた微調板を微ｉ
１４機構によって微小移動するようにしたので、プリン
ト配線板建多少の製造誤差等の精度上の問題があったと
してもアダプタピンをプリント配線板の検査ポイントに
確実に接触させることができて、プリント配線板の個有
精度を向上させることができる。Effects of the Invention As explained above, according to the present invention, a fine adjustment board is provided on a dedicated board, and the fine adjustment board to which a printed wiring board is attached is
14 mechanism allows minute movement, so even if there are accuracy problems such as manufacturing errors in the printed wiring board construction, the adapter pin can be reliably brought into contact with the inspection point on the printed wiring board, and the printing The inherent accuracy of the wiring board can be improved.
第１図は本発明のプリント配線板検査後゛用オシグリッ
ドアダプタの一実施例の斜視図、＠−図は第１図に示す
プリント配線板検査機用オフグリッドアダプタの断面図
、第３図はＸ、Ｙ微調機構を示す園、４４図は微調板を
示す図、第３図（ａ）、（ｂ）はそれぞれガイドビン、
ガイドブレートを示す図。
渠６図は微調板固定ビスを示す図％第７図はフイクスチ
ャを示す図、第を図はスプリングプローブを示す図、第
デ図はメツシュボードを示す図、第１Ｏ図はスペーサを
示す図、第１／図は専用ボードを示す図、第１ユ図は固
定ネジを示す図、第７３図はつき当て枠を示す図％Ｊ’
蓼図は基準ビンを示す図、ｍｎ図は本発明のプリント配
線板検査機用オフグリッドアダプタの変形例を示ず斜視
図である。
ｌ・・・メツシュボード、λ・・・プリント配線板、Ｊ
・・・専用ボード、Ｓ・・・Ｘ、Ｙ微調機構、６・・・
微調板、／／・・・アダプタビン
特許出願人 協栄産業株式会社
代 理 人 弁理士 熊谷雄太部
第３図
第４日
第５図
第６図
第８図
第１２図Fig. 1 is a perspective view of an embodiment of the off-grid adapter for use after inspecting printed wiring boards according to the present invention, and Fig. 3 is a cross-sectional view of the off-grid adapter for printed wiring board inspection machines shown in Fig. 1. 3 shows the X and Y fine adjustment mechanism, Figure 44 shows the fine adjustment plate, and Figures 3 (a) and (b) respectively show the guide bin,
A diagram showing a guide plate. Fig. 6 shows the fine adjustment plate fixing screws, Fig. 7 shows the fixture, Fig. D shows the spring probe, Fig. D shows the mesh board, Fig. 1O shows the spacer, Fig. Figure 1/ is a diagram showing the dedicated board, Figure 1 is a diagram showing the fixing screw, and Figure 73 is a diagram showing the stopper frame.%J'
The bottom diagram is a diagram showing a reference bin, and the mn diagram is a perspective view without showing a modification of the off-grid adapter for a printed wiring board inspection machine of the present invention. l...Mesh board, λ...Printed wiring board, J
...Dedicated board, S...X, Y fine adjustment mechanism, 6...
Fine adjustment plate //...Adapter bin Patent applicant Kyoei Sangyo Co., Ltd. Agent Patent attorney Yutabe Kumagai Figure 3 Figure 4 Day 5 Figure 6 Figure 8 Figure 12
Claims (1)
を接触させてプリント配線板を検査するプリント配線板
検査機用オフグリッドアダプタにおいて、アダプタピン
をプリント配線板の検査ポイントに案内する専用ボード
と、プリント配線板を微小移動させるために専用ボード
上に設けられた微調板と、プリント配線板の取付けられ
た微調板を微小移動させる微調機構とを具備したことを
特徴とするプリント配線板検査機用オフグリッドアダプ
タ。An off-grid adapter for a printed wiring board inspection machine that inspects a printed wiring board by bringing the tip of the adapter pin into contact with the inspection point on the printed wiring board includes a dedicated board that guides the adapter pin to the inspection point on the printed wiring board, and a printed wiring board. An off-grid printed wiring board inspection machine characterized by comprising a fine adjustment plate provided on a dedicated board for minutely moving the board, and a fine adjustment mechanism for minutely moving the fine adjustment plate on which a printed wiring board is attached. adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61272575A JPS63124969A (en) | 1986-11-14 | 1986-11-14 | Off-grid adapter for printed wiring board inspecting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61272575A JPS63124969A (en) | 1986-11-14 | 1986-11-14 | Off-grid adapter for printed wiring board inspecting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63124969A true JPS63124969A (en) | 1988-05-28 |
Family
ID=17515823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61272575A Pending JPS63124969A (en) | 1986-11-14 | 1986-11-14 | Off-grid adapter for printed wiring board inspecting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63124969A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0831332A1 (en) * | 1996-09-18 | 1998-03-25 | Atg test systems GmbH | Adapter for testing electric circuit boards |
| WO2010081834A1 (en) | 2009-01-14 | 2010-07-22 | Dtg International Gmbh | Method for testing printed circuit boards |
| DE102015113046A1 (en) | 2015-08-07 | 2017-02-09 | Xcerra Corp. | Positioning device for a parallel tester for testing printed circuit boards and parallel testers for PCB testing |
| JP2019215210A (en) * | 2018-06-12 | 2019-12-19 | 株式会社エンプラス | Position adjustment mechanism and inspection apparatus |
-
1986
- 1986-11-14 JP JP61272575A patent/JPS63124969A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0831332A1 (en) * | 1996-09-18 | 1998-03-25 | Atg test systems GmbH | Adapter for testing electric circuit boards |
| WO2010081834A1 (en) | 2009-01-14 | 2010-07-22 | Dtg International Gmbh | Method for testing printed circuit boards |
| DE102009004555A1 (en) | 2009-01-14 | 2010-09-30 | Atg Luther & Maelzer Gmbh | Method for testing printed circuit boards |
| DE102015113046A1 (en) | 2015-08-07 | 2017-02-09 | Xcerra Corp. | Positioning device for a parallel tester for testing printed circuit boards and parallel testers for PCB testing |
| WO2017025230A1 (en) | 2015-08-07 | 2017-02-16 | Atg Luther & Maelzer Gmbh | Positioning device for a parallel tester for testing printed circuit boards and parallel tester for testing printed circuit boards |
| JP2019215210A (en) * | 2018-06-12 | 2019-12-19 | 株式会社エンプラス | Position adjustment mechanism and inspection apparatus |
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