JPH0545397A - Sheet for analysis of wiring board and method for analysis thereof - Google Patents

Abstract

PURPOSE:To obtain a sheet for analysis of a wiring board which makes it possible to seek a necessary measuring point out of a plurality of measuring points on the wiring board in a short time, in particular, regarding the sheet for analysis of the wiring board which is used as a means of seeking the necessary measuring point out of the measuring points in a plurality on the wiring board. CONSTITUTION:Measuring points located in a dotted manner on a wiring board which is marked out in the shape of squares by a plurality of virtual straight lines (Xi; i=1, 2, 3,...) being parallel to one another and by a plurality of virtual straight lines (Yj; j=1, 2, 3, ...) being orthogonal to the virtual straight lines (Xi) and parallel to one another, are shown on a display surface. A sheet for analysis of the wiring board which is used as a means of seeking a necessary measuring point out of a plurality of measuring points on the wiring board and measuring points M are shown on the display surface, and the virtual straight lines Xi and the virtual straight lines Yi are shown on this surface so that the positional relationships thereof with the measuring point on the wiring board are made to correspond to each other. A construction is made so that a straight line L whereby each measuring point Ma out of the measuring points M which deviates from a point C of intersection of the straight lines Xi and Yi is made to correspond, 1 to 1, to a point Ca of intersection not overlapping with the measuring point M, out of the points C of intersection located in the vicinity of the measuring point Ma, is shown in the figure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention shows a wiring board used as a means for locating a desired measurement point from a plurality of measurement points on the wiring board by displaying measurement points scattered on the wiring board on a display surface. The present invention relates to a sheet for analysis of wiring boards, and more particularly, to a sheet for analysis of wiring boards that enables a required measurement point to be searched out from a plurality of measurement points on a wiring board in a short time.

[0002]

2. Description of the Related Art Next, a conventional wiring board analysis sheet will be described with reference to FIG. FIG. 2 is a plan view of a main part schematically showing a conventional analysis sheet for a wiring board.

A conventional analysis sheet for a wiring board shows many measurement points M scattered on a wiring board (not shown) on the display surface as shown in FIG. A series of identification numbers Nk (k; 1,2,3, ...) Are assigned to the measurement points M.

[0004]

Therefore, a wiring board testing apparatus (not shown) for testing electrical characteristic values such as the electrical connection between the measurement points M of the wiring board is provided at each measurement point M.
The test result related to was output corresponding to the identification number Nk (k; 1,2,3, ...).

From such tests and the like, it is often necessary to identify a certain measurement point M'of many measurement points M on the wiring board and perform a more detailed inspection. In order to identify the above measurement point, that is, to find out the required measurement point M ′ from many measurement points M on the wiring board, the measurement point M ′ having the same number as the identification number Nk output by the wiring board tester is displayed. After finding out on the sheet, the measurement point on the wiring board was visually identified from the positional relationship on the display sheet.

As described above, in the conventional display sheet, since the identification number Nk which does not have the function of displaying the positional relationship on the display sheet is added to the measurement point M and written, the specific identification number Nk is displayed on the display sheet. There was a problem that it took a lot of time to find out in.

The present invention has been made to solve such a problem, and an object thereof is to make it possible to find a required measurement point from a plurality of measurement points on a wiring board in a short time. To provide a sheet for analysis of a wiring board.

[0008]

As shown in FIG. 1, the above-mentioned object is to achieve a plurality of virtual straight lines (Xi; i = 1,2,3, ...
,) And a plurality of virtual straight lines (Yj; j = 1,2,3, ...) Which are orthogonal to this virtual straight line (Xi) and parallel to each other, are scattered on the wiring board which is partitioned in a square formation. In the analysis sheet of the wiring board used as a means for finding a desired measurement point from a plurality of measurement points on the wiring board, the measurement point M is displayed on the display surface. The virtual straight line Xi and the virtual straight line Yj are shown in correspondence with the positional relationship with the measurement points on the substrate, and the measurement points Ma deviating from the intersection point C of the straight lines Xi and the straight lines Yj among the measurement points M, This measurement point
Among the intersection points C near Ma, set the intersection point Ca that does not become the measurement point to 1
This is achieved by an analysis sheet of a wiring board, which shows a straight line L corresponding to one another.

[0009]

As shown in FIG. 1, in the wiring sheet analysis sheet of the present invention, the virtual straight line Xi and the virtual straight line Yj are made to correspond to the positional relationship between the measurement points M on the display surface and the measurement points on the wiring substrate. And the respective measurement points Ma deviating from the intersection point C of the straight line Xi and the straight line Yj in the measurement point M and the intersection points of the intersection points C near the measurement point Ma that do not overlap with the measurement point M. The straight lines that correspond one-to-one with Ca are shown.

Therefore, the above-described wiring board testing device outputs the test result relating to the measurement point M at the intersection C between the straight line Xi and the straight line Yj in the measurement point M together with the coordinate value of this intersection C, and Each measurement point Ma deviating from the intersection point C
If the test result relating to is output together with the coordinate value of the intersection point Ca where the measurement point Ma is connected by the straight line L, the coordinate value output by the wiring board test device together with the measurement result is obtained at each measurement point. You will be able to find it immediately by looking at it.

[0011]

EXAMPLE An analysis sheet for a wiring board according to an example of the present invention will be described below with reference to FIG. FIG. 1 is a main part plan view schematically showing an analysis sheet of a wiring board according to an embodiment of the present invention. In the present specification, the same parts, the same materials and the like are designated by the same reference numerals throughout the drawings.

The wiring board analysis sheet of one embodiment of the present invention is the same as the conventional wiring board analysis sheet (see FIG. 2) in which the measurement points on the wiring board (not shown) are shown on the display surface. A virtual straight line Xi (i = 1,2,3, ...) Corresponding to the positional relationship with the measurement point on the wiring board, and a plurality of virtual straight lines Yj (j = j 1, 2, 3, ...), and each measurement point Ma deviating from the intersection C of the straight line Xi and the straight line Yj in the measurement point M, and the intersection points in the vicinity of these measurement points Ma. Intersection Ca that does not have a positional relationship with measurement point M in C (this intersection point Ca can be arbitrarily selected from intersection points C that do not have a positional relationship with measurement points M existing around measurement point Ma) A straight line L corresponding to a pair 1 is illustrated.

Therefore, the above-mentioned wiring board test apparatus has the intersection C of the virtual straight line Xi and the virtual straight line Yj in the measuring point M.
The test result related to the measurement point Mc at is output together with the coordinate value of the intersection point C, and the straight line Xi and the straight line at the measurement point M are output.
If the test results relating to each measurement point Ma deviating from the intersection point C with Yj are configured to be output together with the coordinate value of the intersection point Ca that this measurement point Ma is connected by the straight line L, each measurement point is coordinated. By looking at the value, you can find it immediately.

Thus, the required measurement point can be specified in a short time from the many measurement points scattered on the wiring board. Next, an embodiment of a method of analyzing a wiring board using the above-mentioned analysis sheet will be described with reference to FIG.
FIG. 2 is a schematic diagram for explaining an example of a method of analyzing a wiring board.

The test system of this embodiment comprises a probe head 11 having a probe pin 11a whose one end is fixed at an aiming grid-like intersection, a probe position conversion jig 12 which is bent by inserting the probe pin 11a into a through hole 12a, Probe pin 11
The tester 13 is connected to a and the output device 14 is connected to the tester 13.

The probe pin 11a, one end of which is fixed to the aiming grid-like intersection, has a through hole 12a of the probe position conversion jig 12.
Each of them is configured to be inserted and bent in a predetermined direction, and the tip end thereof contacts the measurement point 10a of the wiring board 10 to be measured.

Therefore, if the tester 13 measures the electrical characteristic value of the wiring board 10 and outputs the aiming grid-like intersections together with the test result through the output device 14, the output aiming grid-like intersections are obtained. If you use the above analysis sheet,
The measurement points 10a on the wiring board 10 can be easily identified.

[0018]

As described above, the present invention makes it possible to find a required measurement point from a plurality of measurement points on a wiring board in a short time.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part schematically showing an analysis sheet of a wiring board according to an embodiment of the present invention,

FIG. 2 is a schematic diagram for explaining an embodiment of a method of analyzing a wiring board,

FIG. 3 is a plan view of an essential part schematically showing a conventional analysis sheet for a wiring board;

[Explanation of symbols]

 C and Ca are intersection points, L is a straight line, M and M'and Ma are measurement points, Nk is an identification number, Xi is a virtual straight line, Yj is a virtual straight line, 10 is a wiring board, and 10a is A measurement point, 11 is a probe head, 11a is a probe pin, 12 is a probe position conversion jig, 12a is a through hole, 13 is a tester, and 14 is an output device.

Claims (2)

[Claims] 1. A plurality of virtual straight lines (Xi; i = 1,
2,3, ...) And a plurality of virtual straight lines (Yj; j = 1,2,3, ...) that are orthogonal to and parallel to this virtual straight line (Xi) The measurement points (M) on the analysis sheet of the wiring board that is used as a means to search for the required measurement points from the multiple measurement points on the wiring board by displaying the measurement points scattered on the wiring board on the display surface The virtual straight line (Xi) and the virtual straight line on the display surface shown in Fig.
(Yj) is shown, and the intersection of the straight line (Xi) and the straight line (Yj) in the measurement points (M)
Each measurement point (Ma) deviating from (C) and this measurement point (M)
Among the intersections (C) near a), the intersections that do not overlap the measurement point (M)
A wiring board analysis sheet characterized by showing straight lines (L) that respectively correspond to (Ca) in a one-to-one relationship. 2. A wiring board (10) is provided with a tip of a probe pin (11a) of a probe head (11) having one end fixed to an aiming grid-like intersection and having a through hole (12a) of a probe position conversion jig (12) inserted therethrough.
In the method of testing the wiring board (10) with the test device (13) connected to this probe pin (11a) by contacting the measuring point (10a) of the test device (13), the test device (13) The measurement point (10a) on the wiring board (10) is specified based on the coordinate position of the standard grid-like intersection output together with the test result of the wiring board (10) and the analysis sheet according to claim 1. Characteristic wiring board analysis method.