JPH02165076A - Probe card - Google Patents

Probe card

Info

Publication number
JPH02165076A
JPH02165076A JP63320961A JP32096188A JPH02165076A JP H02165076 A JPH02165076 A JP H02165076A JP 63320961 A JP63320961 A JP 63320961A JP 32096188 A JP32096188 A JP 32096188A JP H02165076 A JPH02165076 A JP H02165076A
Authority
JP
Japan
Prior art keywords
probe card
lsi tester
continuity
wafer
ground line
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.)
Granted
Application number
JP63320961A
Other languages
Japanese (ja)
Other versions
JP2767845B2 (en
Inventor
Fumio Ikegami
池上 文雄
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP63320961A priority Critical patent/JP2767845B2/en
Publication of JPH02165076A publication Critical patent/JPH02165076A/en
Application granted granted Critical
Publication of JP2767845B2 publication Critical patent/JP2767845B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To shorten a preparation time for testing a wafer with an LSI tester by causing a short-circuiting of a signal line and a ground line of a probe card to quickly pinpoint a defective part. CONSTITUTION:A relay of a relay circuit 4 is made open and pads 2a, 2b, 2c, 2e and 2f are not connected individually. When there is a deficiency found in a continuity checking between an LSI tester and a wafer, the relay of the rely circuit 4 is closed by turning a potential of the pad 2r to a level 'H'. Thus, a ground line (pad 2b) is connected to signal lines (pads 2a, 2c, 2e and 2g) and a continuity checking is conducted. In other words, a current flows to the signal lines and a voltage between the signal lines and the ground line is measured to check to see if there is a continuity. This enables discrimination of a deficiency between probe cards from the LSI tester thereby achieving a quick detection of a defective part.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は導通チエツクを容易にするプローブカードに関
する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a probe card that facilitates continuity checks.

〔従来の技術〕[Conventional technology]

第3図に示すように従来、LSIテスタ7からプローブ
カード1cまで信号線が導通していることを確認するた
め、ウェハ10の表面が導体で覆われているウェハをプ
ロービングして各信号線とグランド線が導通しているこ
とを確認することにより、LSIテスタの信号線とプロ
ーブカードICの探針が導通していることを確認してい
た。8はロードボード、9はプローバである。
As shown in FIG. 3, conventionally, in order to confirm that the signal lines are conductive from the LSI tester 7 to the probe card 1c, a wafer 10 whose surface is covered with a conductor is probed to connect each signal line. By checking that the ground wire was conductive, it was confirmed that the signal line of the LSI tester and the probe of the probe card IC were conductive. 8 is a load board, and 9 is a prober.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

前述した従来の導通チエツクでは導通しなかった場合、
第3図かられかるように■LSIテスタ7とロードボー
ド8間の接続不良、■ロードボード8とプロー89間の
接続不良、■プローバ9とプローブカード10間の接続
不良、■プローブカード1cの探針とウェハ10間の接
触不良、■LSIテスタ7の不良、■ロードボード8の
不良、■プローバ9の不良、■プローブカードICの不
良のどれが原因であるかを判断できなかった。
If the conventional continuity check described above does not result in continuity,
As shown in Figure 3, ■Poor connection between LSI tester 7 and load board 8, ■Poor connection between load board 8 and prober 89, ■Poor connection between prober 9 and probe card 10, ■Poor connection between probe card 1c. It was not possible to determine which of the following was the cause: poor contact between the probe and wafer 10, (1) defective LSI tester 7, (2) defective load board 8, (2) defective prober 9, and (2) defective probe card IC.

このため、導通不良が生じた場合、上述した9箇所を1
箇所ずつチエツクしなければならず、導通不良の場所を
捜し、導通不良をなくすために数時間を要することがあ
った。
For this reason, if a continuity failure occurs, the nine locations mentioned above can be
It was necessary to check each location one by one, and it sometimes took several hours to find the location of the poor conductivity and eliminate the defective continuity.

本発明の目的は前記課題を解決したプローブカードを提
供する°ことにある。
An object of the present invention is to provide a probe card that solves the above problems.

〔発明の従来技術に対する相違点〕[Differences between the invention and the prior art]

上述した従来のプローブカードに対し、本発明のプロー
ブカードは、プローブカード内のLSIテスタからの信
号線とグランド線をショートさせることにより、導通不
良が生じた場合、LSIテスタからプローブカードまで
の不良か、又はプローブカードからウェハまでの不良か
をチエツクできるという相違点を有する。
In contrast to the above-mentioned conventional probe card, the probe card of the present invention eliminates the failure from the LSI tester to the probe card when a continuity failure occurs due to shorting the signal line from the LSI tester in the probe card and the ground line. The difference is that it is possible to check whether there is a defect or whether there is a defect from the probe card to the wafer.

〔課題を解決するための手段〕[Means to solve the problem]

前記目的を達成するため、本発明に係るプローブカード
においては、プローブカードの信号線とグランド線をシ
ョートさせる手段を有するものである。
In order to achieve the above object, the probe card according to the present invention has means for shorting the signal line and the ground line of the probe card.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

(実施例1) 第1図は本発明の実施例1を示す構成図である。(Example 1) FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

1aはプローブカード、28〜2h 、 2rは[、S
Iテスタと接続するパッド(ただし、2bはLSIテス
タのグランド線に接続される)、38〜3gは探針、4
はリレー回路である。
1a is the probe card, 28~2h, 2r is [, S
Pads connected to the I tester (however, 2b is connected to the ground line of the LSI tester), 38 to 3g are probes, 4
is a relay circuit.

通常、リレー回路4のリレーはオープンになっており、
パッド2a、2b、2c、2e、2gはそれぞれ接続さ
れていない。LSIテスタとウェハ間の導通チエツタで
不良が生じた場合、パッド2rの電位を゛Hルベルにす
ることによりリレー回路4のリレーを閉じる。
Normally, the relay in relay circuit 4 is open,
Pads 2a, 2b, 2c, 2e, and 2g are not connected to each other. If a failure occurs in the continuity checker between the LSI tester and the wafer, the relay of the relay circuit 4 is closed by setting the potential of the pad 2r to the "H" level.

よって、グランド線(パッド2b)と信号線(パッド2
a、2c、2e、2g)が接続され、導通チエツクすな
わち、信号線に電流を流し、信号線−グランド線間の電
圧を測定し導通しているかどうかをチエツクすることに
より、LSIテスタからプローブカード間の不良か、プ
ローブカードからウェハ間の不良かの区別がつく。これ
により、不良箇所の絞り込みが迅速に行え、ウェハをL
SIテスタで検査するための準備時間を大幅に短縮でき
る。
Therefore, the ground line (pad 2b) and the signal line (pad 2b)
a, 2c, 2e, 2g) are connected, conduct a continuity check, that is, run a current through the signal line, measure the voltage between the signal line and the ground line, and check whether there is continuity. It is possible to distinguish between a defect between the probe card and the wafer. This allows you to quickly narrow down the defective areas and reduce the wafer to L.
Preparation time for testing with an SI tester can be significantly reduced.

(実施例2) 第2図は本発明の実施例2を示す構成図である。(Example 2) FIG. 2 is a configuration diagram showing a second embodiment of the present invention.

1bはプローブカード、21〜2qはLSIテスタと接
続するパッド、 3h〜3+11は探針、5は集積回路
、68〜6dはNチャネルMOSトランジスタである。
1b is a probe card, 21 to 2q are pads connected to an LSI tester, 3h to 3+11 are probes, 5 is an integrated circuit, and 68 to 6d are N-channel MOS transistors.

この実施例は、信号線(パッド2i、2Q、2n、2p
)とグランド線(パッド2j)を接続する手段としてN
チャネルMOSトランジスタ6a〜6dからなる集積回
路5を用いている。パッド2にの電位を″′Hルベルに
すると、NチャネルMOSトランジスタ68〜6dがO
Nし、信号線(パッド2i+212,2n+2P)とグ
ランド1iA(パッド2j)が導通する。
In this embodiment, the signal lines (pads 2i, 2Q, 2n, 2p
) and the ground line (pad 2j).
An integrated circuit 5 consisting of channel MOS transistors 6a to 6d is used. When the potential on pad 2 is set to ``H level'', N channel MOS transistors 68 to 6d become O.
N, and the signal line (pads 2i+212, 2n+2P) and the ground 1iA (pad 2j) are electrically connected.

本実施例では集積回路5を用いることにより、小型化で
き、多ピンのプローブカードにも適用できるという利点
がある。
By using the integrated circuit 5 in this embodiment, there is an advantage that it can be miniaturized and can be applied to a multi-pin probe card.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明のプローブカードは、プロー
ブカードの信号線とグランド線をショートさせる手段を
有することにより、LSIテスタとウェハ間の導通チエ
ツクにて不良が発生した場合、プローブカードにて信号
線とグランド線をショートさせ導通チエツクを行えば、
 LSIテスタからプローブカード間の不良又はプロー
ブカードからウェハ間の不良を判別でき、これにより、
不良箇所の絞り込みが迅速に行え、ウェハをLSIテス
タで検査するための準備時間を大幅に短縮できる効果が
ある。
As explained above, the probe card of the present invention has a means for shorting the signal line and the ground line of the probe card, so that when a failure occurs in the continuity check between the LSI tester and the wafer, the probe card can output a signal. If you short the line and ground line and check continuity,
It is possible to determine defects between the LSI tester and the probe card or between the probe card and the wafer.
This has the effect of quickly narrowing down the defective locations and significantly shortening the preparation time for testing the wafer with an LSI tester.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施例1を示す構成図、第2図は本発
明の実施例2を示す構成図、第3図はしSエテスタから
ウェハまでの信号経路を示す図である。 la、lb・・・プローブカード 28〜2r・・・パ
ッド38〜3g・・・探針       4・・・リレ
ー回路5・・・集積回路
FIG. 1 is a block diagram showing a first embodiment of the present invention, FIG. 2 is a block diagram showing a second embodiment of the present invention, and FIG. 3 is a diagram showing a signal path from an S tester to a wafer. la, lb...probe card 28-2r...pad 38-3g...probe 4...relay circuit 5...integrated circuit

Claims (1)

【特許請求の範囲】[Claims] (1)プローブカードの信号線とグランド線をショート
させる手段を有することを特徴とするプローブカード。
(1) A probe card characterized by having means for shorting a signal line and a ground line of the probe card.
JP63320961A 1988-12-20 1988-12-20 Probe card Expired - Lifetime JP2767845B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63320961A JP2767845B2 (en) 1988-12-20 1988-12-20 Probe card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63320961A JP2767845B2 (en) 1988-12-20 1988-12-20 Probe card

Publications (2)

Publication Number Publication Date
JPH02165076A true JPH02165076A (en) 1990-06-26
JP2767845B2 JP2767845B2 (en) 1998-06-18

Family

ID=18127228

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63320961A Expired - Lifetime JP2767845B2 (en) 1988-12-20 1988-12-20 Probe card

Country Status (1)

Country Link
JP (1) JP2767845B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015511004A (en) * 2012-03-08 2015-04-13 ローゼンベルガー ホーフフレクベンツテクニーク ゲーエムベーハー ウント ツェーオー カーゲー Equipment for measuring electronic components
JP2016524137A (en) * 2013-05-06 2016-08-12 フォームファクター, インコーポレイテッド Probe card assembly for testing electronic devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015511004A (en) * 2012-03-08 2015-04-13 ローゼンベルガー ホーフフレクベンツテクニーク ゲーエムベーハー ウント ツェーオー カーゲー Equipment for measuring electronic components
JP2016524137A (en) * 2013-05-06 2016-08-12 フォームファクター, インコーポレイテッド Probe card assembly for testing electronic devices

Also Published As

Publication number Publication date
JP2767845B2 (en) 1998-06-18

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