CN1658198A - Computer system for checking circuit arrangement - Google Patents
Computer system for checking circuit arrangement Download PDFInfo
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- CN1658198A CN1658198A CN 200410005060 CN200410005060A CN1658198A CN 1658198 A CN1658198 A CN 1658198A CN 200410005060 CN200410005060 CN 200410005060 CN 200410005060 A CN200410005060 A CN 200410005060A CN 1658198 A CN1658198 A CN 1658198A
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- measuring point
- archives
- circuit layout
- power supply
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Abstract
A computer system which can check the layout of circuit. It firstly set up a second file to record a survey point need norm, and then it uses the computer system to read the first file having the real situation of the layout of circuit. After that, it runs a checking process to find out those parts which don't agree with that survey point need norm by comparing the first and the second file. This process will also find out which group of survey points has fewer points than the safe number and needs to add power survey points, and which survey points' distance between each other is shorter than the safe value and needs to change. However this invention can rapidly and accurately check out those inappropriate places in the arrangement of survey points of the layout of circuit through the computer system, saving labor power and time.
Description
Technical field
The present invention relates to the design field of circuit layout, especially the computer system that refers to a kind of check circuit layout, it is used in particular for checking whether the measuring point arrangement of a circuit layout meets the requirements, and uses and avoids taking place some necessary measuring points that exist because of the unfounded situation of careless omission.
Background technology
For test (ICT) on the line of engagement, circuit layout design now is except needs carry out functional design, still design for Measurability (Design For Test) must be considered in the lump, so that last circuit board finished product is except having functional circuit, have more enough measuring points and touch for the probe spy of proving installation on the line, all normally errorless with function and the quality of confirming circuit board.
That is to say, the circuit layout after finishing for fear of design, possible some measuring point is not established, and causes last circuit board finished product because having lacked some measuring point some project of testing on the line can't to be carried out.For solving this problem, normally after finishing circuit layout design, make before the egative film, in the circuit layout of being finished with the manual type inspection whether the measuring point of being omitted is arranged, use and guarantee that circuit board finished product in the future has enough and meets the measuring point of testing requirement on the line.
Yet, owing to be hand inspection,, and the more important thing is that the correctness of hand inspection is lower, so that the problem points of aforementioned omission measuring point is not really, overcome effectively so not only waste time and energy.
Summary of the invention
The object of the present invention is to provide a kind of computer system of check circuit layout, this computer system can be according to the method for check circuit layout and whether the measuring point arrangement on this circuit layout of quick check meets expection, uses and guarantees to have the measuring point that meets testing requirement on the production line according to the made circuit board finished product of this circuit layout.
Particularly, this circuit layout comprises the routing network (net) of a plurality of element pin points (Pin Pad), a plurality of measuring point (Test Pad) and a plurality of connection said elements pin points and above-mentioned measuring point, and these element pin points, these measuring points, is defined by at least one first archives with the description of these routing networks.
For checking whether the measuring point arrangement on this circuit layout meets expection, the present invention sets up a measuring point requirement profile especially earlier stipulating the basic demand of this circuit layout, and this measuring point requirement profile specifically is defined in one second archives.Therefore, as long as utilize the content of these first and second archives of computer system reads, carry out the content that a scrutiny program is compared these first and second archives then.See through this quadrat method, just can from the comparison of these first and second archives, find out the part that does not meet this measuring point requirement profile in this circuit layout.For example, in the defined measuring point requirement profile of these second archives, list the title of these element pin points and point out that those element pin point absolute demands connect one of these measuring points, at this moment, as long as obtain this first archives, and whether title and this element pin point of each element pin point of this circuit layout of record have one of these measuring points of connection in these first archives, which element pin point so just can find out through this scrutiny program has be prescribed absolute demand connection measuring point in this circuit layout, but reality does not connect any measuring point.
In addition, owing to from these first archives, can know the practical situation of this circuit layout, therefore, under suitable design, this scrutiny program can be found out this circuit layout further from these first archives those measuring points are arranged is that power supply measuring point, those power supply measuring points are that the power supply measuring point total quantity that belongs to same a group and that a group power supply measuring point is to be lower than a safe quantity and needs increase the power supply measuring point.
In like manner, under suitable design, this scrutiny program can be found out distance values the shortest between adjacent two measuring points further and the distance values of which measuring point is arranged from these first archives be to be lower than a safe spacing value and need to make alterations.
In any case the present invention sees through these first and second archives of this computer system reads and carries out this scrutiny program, which improper part just can quick check goes out this circuit layout has in the measuring point arrangement, more can produce the result that a report is checked in order to report at last.This report can power road designer, topological design personnel with reference to and improve its design according to this, and then obtain the not only functional circuit board finished product that demand and measurability also meet demand that meets.
With respect to the mode of past with the hand inspection circuit layout, the present invention is this to carry out the mode of check circuit layout with computing machine, not only comparatively fast, correct, and more can save manpower, time and dark tool practical improvement.
Description of drawings
Fig. 1 shows the part enlarged drawing of the circuit layout in the preferred embodiment of the present invention.
Fig. 2 shows the part content of first archives in the preferred embodiment of the present invention.
Fig. 3 shows the part content of the third gear case in the preferred embodiment of the present invention.
Fig. 4 shows the part content of second archives in the preferred embodiment of the present invention.
The system block diagrams of Fig. 5 preferred embodiment of the present invention.
The flowchart of Fig. 6 preferred embodiment of the present invention.
Fig. 7 shows the content of the last report that produces of preferred embodiment of the present invention.
Symbol description among the figure:
1 circuit layout, 10 element pin points
11 routing networks, 12 measuring points
120120 a, 120 b power supply measuring points
2 first archives
21 element titles
First pin point ordering of 22 single elements
23 element pin point titles
24 element pin point X coordinates
Layer title under the 25 element pin point Y coordinates 26
Routing network title under in the of 27
Whether 28 have the connection measuring point
3 second archives
32 suggestions of 31 titles
33 importance
4 scrutiny programs
47 safe quantity 49 safe spacing values
5 third gear cases
51 measuring points, 52 measuring point X coordinates
53 measuring point Y coordinates, 54 measuring point patterns
56 measuring point areas between 55 measuring point locations
The title of numbering 58 routing networks of 57 routing networks
6 computer systems
65 differences, 69 distance values
67 power supply measuring point total quantitys
7 reports, 99 measuring point requirement profile
Embodiment
For further setting forth the present invention, be example with circuit layout shown in Figure 11 now.In explanation subsequently, will utilize this circuit layout 1 explanation preferred embodiment of the present invention is whether to meet demand as where checking the testability of this circuit layout 1.Although this Fig. 1 only shows the some of this circuit layout 1,, be enough to represent entire circuit layout 1 and be enough to support subsequently explanation only for any personage who has the knack of circuit layout.
See also Fig. 1, this circuit layout 1 includes routing network (net) 11 and a plurality of measuring point that is used to test (Test Pad) 12 of a plurality of element pin points (Pin Pad) 10, those element pin points 10 of a plurality of connection.Measuring point 12 is connected to corresponding elements pin point 10 by routing network 11, and more comprises plural number group and the relevant power supply measuring point 120 of power supply input in those measuring points 12, and each group power supply measuring point 120 is for different voltage inputs.For example the power supply measuring point 120a of crowd by name+5V is in order to the power supply of input+5V, and the power supply measuring point 120b of crowd by name+3.3V is in order to the power supply of input+3.3V.
Though circuit layout 1 is the Graphic Documentation that utilizes layout software to finish, but data such as the title of element pin point 10, routing network 11, measuring point 12 and power supply measuring point 120 in the circuit layout 1, coordinate, quantity, area .., can use the mode of archives conversion, convert the Graphic Documentation (as Fig. 1) of circuit layout 1 to one or more texts, this is the common function of existing layout software.First archives 2 as shown in Figure 2, archives for existing text formatting that layout software converts to wherein list: first pin point of element title Part21, single element sort (Pin) 22, element pin point title (Index) 23, element pin point X coordinate 24, element pin point Y coordinate 25, affiliated layer of title (Layer) 26, affiliated routing network title (Net) 27 and whether information such as connection measuring point (Nail (s)) 28 is arranged.Wherein Nail (s) is " 0 " represent to be connected to measuring point 12, blank expression is not connected to measuring point 12.
The information such as title (Index) 31, suggestion (Suggest) 32 and importance (Priority) 33 of second archives, 3 record element pin points as shown in Figure 4.As shown in Figure 5, those information are measuring point requirement profile 99 of setting up according to test request, wherein whether this importance (Priority) 33 recording element pin points 10 (shown in Figure 1) are that absolute demand is connected to measuring point 12 (shown in Figure 1), for example the element pin point 10 that name is called A2 among Fig. 1 is defined as " absolute demand connects measuring point Absolute necessary ", and the element pin point 10 of A6 then is " non-absolute demand connection measuring point 12Not essential ".
In addition, set up a safe quantity 47 and a safe spacing value 49 according to measuring point requirement profile 99, this safe quantity 47 and safe spacing value 49 are defined in the scrutiny program 4.
Then, see also Fig. 5, first archives 2 that will be converted to by this circuit layout 1 and third gear case 5, according to this measuring point requirement profile 99 key in relevant information second archives 3, and scrutiny program 4 import a computer system 6 one by one, and carry out scrutiny program 4.In a preferred embodiment, check whether this circuit layout 1 meets following measuring point requirement profile 99:
One, the element pin point 10 of measuring point 12 is set up in designated absolute demand, must be connected with measuring point 12 in this circuit layout 1.
Two, the power supply measuring point total quantity 67 of each group power supply measuring point 120 in this circuit layout 1 must be higher than 5.
Three, adjacent two measuring points 12 between distance values 69 must be more than 50mil.
In a preferred embodiment of the present invention, utilize a computer system 6 that has CPU (central processing unit) and storage element at least to read first archives 2, third gear case 5, reach second archives 3, and execution scrutiny program 4, so that from first archives 2, find out the part that does not meet testing requirement standard 99, and find out the power supply measuring point total quantity 67 and the distance values 69 underproof measuring points 12 of same cluster name from third gear case 5.Because these first archives 2, and third gear case 5 be the reflection this circuit layout 1 practical situation, and safe quantity 47 that defines in the scrutiny program 4 and safe spacing value 49 are reflection testing requirement standards 99 to this circuit layout 1, therefore, this circuit layout 1 is if there is any part that does not meet this testing requirement standard 99, via aforesaid running, all will be pointed out, and be shown in the report 7 by this computer system 6.
More particularly, this computer system 6 is carried out following step and just can be reached to check whether the purpose whether this circuit layout 1 meets demand promptly meets this measuring point requirement profile 99, and this please cooperate consults Fig. 6:
Read in first archives of obtaining in advance 2;
Read in second archives 3 of prior foundation;
Carry out this scrutiny program 4 in order to comparing first archives 2 and second archives 3, in order to finding out difference, that is find out the part that does not meet this measuring point requirement profile 99 in this circuit layout 1;
List the element pin point 10 that does not meet this testing requirement standard 99 and still need and to append measuring point 12.
Then, read in the third gear case 5 that obtains in advance;
Continue to carry out scrutiny program 4, calculate each group power supply measuring point total quantity 67, that is from this third gear case 5, search each power supply measuring point 120, and accumulative total belongs to the power supply measuring point total quantity 67 of same cluster name (Net Name);
The safe quantity 47 that obtains is in advance subtracted each other with the power supply measuring point total quantity 67 of each group, and to obtain a difference 65, the numerical value of this safe quantity 47 is 5 in this example;
Whether judge this difference 65 greater than zero, if judged result be " vacation ", promptly set this difference 65 for " 0 ", be " very " as if judged result, then list title and this difference 65 of this group power supply measuring point 120.
Continue again to carry out this scrutiny program 4, calculate the distance values 69 of 12 of adjacent two measuring points;
List this distance values 69 is made as 50mil less than these safe spacing value 49 these preferred embodiments measuring point 12.
Continue to carry out this scrutiny program 4 again producing a report 7, in order to report do not meet this measuring point requirement profile 99 in this circuit layout 1 and the group of element pin point 10, each group power supply measuring point 120 that needs append measuring point 12 with corresponding difference and point out the measuring point 12 of distance values 69 less than this safe spacing value 49.
Because first archives 2 and second archives 3 all are Excel form shelves, therefore, this scrutiny program 4 can utilize the VBA program to write, make Nail (s) field 28 that it can be for example shown in Figure 2 according to the field of " whether the connection measuring point is arranged " 28, from these first archives 2, filter out earlier the element pin point 10 that does not connect measuring point 12, then, be compared to " importance Priority33 " field of these second archives 3 more one by one with those element pin points 10, just can find out which element pin point 10 and in second archives 3, be required " absolute demand connects measuring point 12 ", but in fact not connect any measuring point 12.
This scrutiny program 4 also can be according to the power supply measuring point 120 of finding out the same cluster name in the third gear case 5 as shown in Figure 3, for example Net Name is+5V person, and calculate the power supply measuring point total quantity 67 of each group power supply measuring point 120, at last with this power supply measuring point total quantity 67 compared to this safe quantity 47, need append power supply measuring point 120 again to determine those power supply measuring point total quantity 67 deficiencies, with Fig. 3, the group is by name+and 5V person's power supply measuring point 120 has one, not enough predetermined safe quantity 47 " 5 " are so this group power supply measuring point 120 need append 4 power supply measuring points 120 again.
Moreover, this scrutiny program 4 more can be from the records such as title 58 of the measuring point X coordinate 52 of the relevant measuring points 12 of third gear case 5, measuring point Y coordinate 53, measuring point pattern 54, measuring point area 56, routing network, calculate the distance values 69 of 12 of adjacent two measuring points and the difference 65 of this safe spacing value 49, use and judge that it is the inept 50mil that for example is lower than that the distance values 69 of which measuring point 12 is arranged.
At last, this scrutiny program 4 can produce a report 7, and this report 7 also is Excel form shelves, therefore, can receive and write down above-mentioned check result.In Fig. 7, show the flesh and blood of this report 7, it comprises three parts, is respectively:
First partly: have which element pin to put 10 absolute demands in order to report and append measuring point 12." PCI_CK_33M_LPC " is the object that will be added measuring point 12 among the figure.
Second partly: have the power supply measuring point total quantity 67 of that a group power supply measuring point 120 to be less than safe quantity 47 " 5 " in order to report, and needs increase power supply measuring point 120.Name is called+only 1 altogether of that group power supply measuring point of 5V 120 among the figure, and " 5 " lack than safety quantity 47, so need increase by 4 power supply measuring points 120 again.
The 3rd partly: in order to report the distance values 69 of those measuring points 12 being arranged is to be lower than safe spacing value 49 " 50mil ", and needs to strengthen distance values 69.Show among the figure that having 4 is underproof measuring point 12.
In addition, what need particularly point out is that the data of above-mentioned third gear case 5 also can merge in input first archives 2, that is to say and only utilizes first archives 2 to define this circuit layout 1.So only need to increase the field of first archives 2, just can carry out scrutiny program 4 according to this equally and obtain this first partly, second partly, and the 3rd partly expressed message.
By in the explanation of the preferred embodiment of the present invention of above exposure as can be known, first archives 2 that the present invention can utilize this computer system 6 to read and obtain in advance reach second archives of setting up in advance 3, and utilize this computer system 6 to carry out to have comparison, screen, search, set up the scrutiny program 4 of function such as archives .., so that from the comparison of these first and second archives 23, find out the part that does not meet expectation.Whether seeing through this computerized inspection method, is can fast and correctly check out a circuit layout 1 aspect design for Measurability, particularly about measuring point 12 arrangement aspects, meet the requirements.
With respect to the mode of past with the hand inspection circuit layout, the present invention is this to carry out the mode of check circuit layout with computing machine, not only comparatively fast, correct, and more can save manpower, time and dark tool practical improvement.
The present invention does not also see have identical or similar techniques discloses formerly in like product again, so met the patent of invention important document, files an application in accordance with the law.
Claims (9)
1, a kind of computer system of check circuit layout comprises at least one CPU (central processing unit), at least one storage element, one first archives, one second archives, and a scrutiny program be input into this storage element, use and check a circuit layout, wherein:
This circuit layout has the routing network of a plurality of element pin points, a plurality of measuring point and a plurality of connection said elements pin points and above-mentioned measuring point;
These first archives define these element pin points, these measuring points, with the description of these routing networks;
These second archives define a measuring point requirement profile;
This scrutiny program is carried out the comparison work between these first archives and second archives, in order to find out the part that does not meet this measuring point requirement profile in these first archives.
2, the computer system of check circuit layout as claimed in claim 1, wherein this scrutiny program produces a report further, in order to report the part that does not meet this measuring point requirement profile in these first archives.
3, the computer system of check circuit layout as claimed in claim 1, wherein these first archives are put down in writing the title of each these element pin point at least and are pointed out whether each these element pin point is connected in one of these measuring points, and these second archives are put down in writing element pin point and the title thereof that absolute demand connects one of these measuring points at least.
4, the computer system of check circuit layout as claimed in claim 3, wherein this scrutiny program produces a report further, does not meet the record of these second archives in these first archives and needs append the element pin point of measuring point in order to report.
5, the computer system of check circuit layout as claimed in claim 1, wherein more comprise plural number group power supply measuring point in the defined measuring point of these first archives, each group power supply measuring point is respectively given a kind of input voltage and a group name, this scrutiny program can define the safe quantity of each group power supply measuring point further, and from these first archives, obtain the power supply measuring point total quantity that belongs to the power supply measuring point of a group, and correspondence subtracted each other with the safe quantity and the power supply measuring point total quantity of a group power supply measuring point, obtaining a difference, and this difference is if promptly replace with zero smaller or equal to zero.
6, the computer system of check circuit layout as claimed in claim 5, wherein this scrutiny program produces a report further, in order to report the part that does not meet this measuring point requirement profile in this circuit layout, group's name and the corresponding difference that reaches each group power supply measuring point.
7, the computer system of check circuit layout as claimed in claim 5, wherein these first archives more define the coordinate and the area of each measuring point in this circuit layout, this scrutiny program can define a safe spacing value further, and calculates the distance values the shortest between adjacent two measuring points and the difference of this safe spacing value.
8, the computer system of check circuit layout as claimed in claim 7, wherein this scrutiny program produces a report further, in order to group's name of reporting the part that do not meet this measuring point requirement profile in this circuit layout, each group power supply measuring point with corresponding difference and point out the measuring point of distance values less than this safe spacing value.
9, the computer system of check circuit layout as claimed in claim 7, wherein these first archives are put down in writing at least:
The title of each these element pin point;
Whether each these element pin point has connects corresponding measuring point;
The title of each group power supply measuring point;
The coordinate of each these measuring point; And
The area of each these measuring point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410005060 CN1658198B (en) | 2004-02-16 | 2004-02-16 | Method for checking circuit arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410005060 CN1658198B (en) | 2004-02-16 | 2004-02-16 | Method for checking circuit arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1658198A true CN1658198A (en) | 2005-08-24 |
| CN1658198B CN1658198B (en) | 2011-06-01 |
Family
ID=35007681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410005060 Expired - Fee Related CN1658198B (en) | 2004-02-16 | 2004-02-16 | Method for checking circuit arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1658198B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308517B (en) * | 2007-03-21 | 2010-12-08 | 台湾积体电路制造股份有限公司 | Method for detecting and calibrating semiconductor device |
| CN101751482B (en) * | 2008-12-01 | 2011-11-09 | 英业达股份有限公司 | Method for checking trace of circuit layout |
| CN102479271A (en) * | 2010-11-25 | 2012-05-30 | 英业达股份有限公司 | Auxiliary wiring method |
| CN105335583A (en) * | 2015-11-30 | 2016-02-17 | 英业达科技有限公司 | Layout inspecting system and method |
| CN105512375A (en) * | 2015-11-30 | 2016-04-20 | 英业达科技有限公司 | Layout detection system and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6516452B2 (en) * | 2001-05-01 | 2003-02-04 | Chipdata, Inc. | Method and apparatus for verifying design data |
| TW550386B (en) * | 2001-09-06 | 2003-09-01 | Mitac Int Corp | Arranging method of test point for high frequency signal |
| CN1173288C (en) * | 2001-11-27 | 2004-10-27 | 英业达股份有限公司 | Computer aided circuit design and topological design |
-
2004
- 2004-02-16 CN CN 200410005060 patent/CN1658198B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308517B (en) * | 2007-03-21 | 2010-12-08 | 台湾积体电路制造股份有限公司 | Method for detecting and calibrating semiconductor device |
| CN101751482B (en) * | 2008-12-01 | 2011-11-09 | 英业达股份有限公司 | Method for checking trace of circuit layout |
| CN102479271A (en) * | 2010-11-25 | 2012-05-30 | 英业达股份有限公司 | Auxiliary wiring method |
| CN102479271B (en) * | 2010-11-25 | 2014-07-23 | 英业达股份有限公司 | Auxiliary wiring method |
| CN105335583A (en) * | 2015-11-30 | 2016-02-17 | 英业达科技有限公司 | Layout inspecting system and method |
| CN105512375A (en) * | 2015-11-30 | 2016-04-20 | 英业达科技有限公司 | Layout detection system and method |
| CN105335583B (en) * | 2015-11-30 | 2019-04-19 | 英业达科技有限公司 | Layout checks system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1658198B (en) | 2011-06-01 |
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