CN107484341A - A kind of method for drafting of adaptive asymmetric pin cake core - Google Patents

A kind of method for drafting of adaptive asymmetric pin cake core Download PDF

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Publication number
CN107484341A
CN107484341A CN201710687500.0A CN201710687500A CN107484341A CN 107484341 A CN107484341 A CN 107484341A CN 201710687500 A CN201710687500 A CN 201710687500A CN 107484341 A CN107484341 A CN 107484341A
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pin
drawn
chip body
drafting
chip
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CN107484341B (en
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高会军
杨宪强
刘鑫
张智浩
孙光辉
于金泳
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0008—Apparatus or processes for manufacturing printed circuits for aligning or positioning of tools relative to the circuit board
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/16—Inspection; Monitoring; Aligning
    • H05K2203/163—Monitoring a manufacturing process

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Image Analysis (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Processing (AREA)

Abstract

A kind of method for drafting of adaptive asymmetric pin cake core, is related to a kind of method for drafting of asymmetric pin chip.Solves existing chip information acquisition system, the problem of accuracy of the chip parameter information to being gathered can not be observed intuitively.The method comprising the steps of one：According to actual measurement chip body parameter, chip body rectangular profile is drawn, now, the position of chip body is defaulted as initial position；Step 2：According to pin number, pin length, pin widths and adjacent leads spacing in actual measurement chip body each edge, the pin in chip body each edge is drawn successively；The pin length is equal to pin root depth and pin foot length sum；Step 3：According to actual measurement chip offset amount and the anglec of rotation, the chip body and pin drawn are translated and rotated as entirety, so as to complete the drafting to asymmetric pin cake core.Present invention is mainly used for asymmetric pin is drawn.

Description

A kind of method for drafting of adaptive asymmetric pin cake core
Technical field
The present invention relates to a kind of method for drafting of asymmetric pin chip.
Background technology
During the attachment of chip mounter, chip is placed into the specified location of pcb board, and whether accurately put chip The data of specified location and acquisition system feedback are put, the attachment process to whole chip mounter is particularly important.Acquisition system is to PCB The chip mounted on plank carries out picture collection, and the chip information calculated, chip information include chip body size, Chip pin number, pin length and width, pin spacing, the anglec of rotation of chip and X, the offset etc. of Y-direction, these numbers According to accuracy directly affect the precision of attachment.
The constantly position of adjustment chip is needed during attachment and using high-precision acquisition system to mounting data It is acquired, so as to accurately be mounted, the degree of accuracy of general verification attachment, can only be known by lteral data, and can not The picture for containing chip attachment position with actual acquisition by the figure for the chip drawn out is proofreaded, and intuitively judges attachment Accuracy.At present, also without a kind of by chip inherent parameters information, the method for obtaining chip image contour line.Therefore, urgently A kind of lines of outline of the window display chip in software interface need to be provided, and with the chip image of camera shooting carry out size and The contrast of position, user is set more intuitively to see in real time, the accuracy of the test data for the chip that acquisition system provides.
The content of the invention
The present invention be in order to solve existing chip information acquisition system, to the accuracy of chip parameter information that is gathered without The problem of method is intuitively observed, the invention provides a kind of method for drafting of adaptive asymmetric pin cake core.
A kind of method for drafting of adaptive asymmetric pin cake core, this method comprise the following steps：
Step 1：According to actual measurement chip body parameter, chip body rectangular profile, now, the position of chip body are drawn It is defaulted as initial position；The actual measurement chip body parameter includes rectangular profile in X-direction size XbodyWith Y direction size Ybody；The length direction of the rectangular profile is X-direction, and width is Y direction；Step 2：According to actual measurement chip sheet Pin number, pin length, pin widths and adjacent leads spacing in body each edge, successively to drawing in chip body each edge Pin is drawn；The pin length is equal to pin root depth and pin foot length sum；
Step 3：According to actual measurement chip offset amount and the anglec of rotation, the chip body and pin drawn are used as overall Translated and rotated, so as to complete the drafting to asymmetric pin cake core.
Preferably, it is described according to actual measurement chip body parameter in step 1, draw the rectangular profile of chip body Detailed process is：According to chip body parameter, closure line segment is drawn using openGL graphic packages interface function, so as to obtain core Piece body rectangular profile.
Preferably, in the step 2, according to pin number, pin length, pin in actual measurement chip body each edge Width and adjacent leads spacing, the detailed process drawn successively to the pin in chip body each edge are：
Step 2 one：Right, upper, left, the lower four edges of chip body are respectively defined as No. 1 to No. 4 side, successively to No. 1 Pin on to No. 4 sides is drawn using openGL graphic packages interface function according to step 2 two to step 2 four, when appoint When number of pins in a line of anticipating is more than or equal to 2, the pin on the side is drawn by the way of from top to bottom；
Step 2 two：Judge whether side number of pins to be drawn is more than 0, judged result is yes, performs step 2 three, is judged As a result it is no, performs step 2 five；
Step 2 three：Graphical pointv is moved to the root center of the side first pin from top to bottom, first pin Root centre coordinate be (Radgroup-Fpin/2,-(Tangroup-Ppin×(Npin- 1)/2)), according to the root of first pin Centre coordinate (Radgroup-Fpin/2,-(Tangroup-Ppin×(Npin- 1)/2)) and first pin root depth, draw The root of first pin；Then, further according to the foot length of first pin, the foot of first pin of drafting, so as to complete Into after the drafting of first pin, step 2 four is performed；
Wherein, RadgroupThe straight line being made up of the center of chip body with drawing the central point of all pins on side Between distance, FpinFor the foot length of first pin, TangroupFor the coordinate value of pin set center in the Y-axis direction, pin Group center for all pins composition on drafting side set center, PpinFor adjacent leads spacing, NpinTo be drawn side On pin number；
Step 2 four：According to the root centre coordinate (Rad of first pingroup-Fpin/2,-(Tangroup-Ppin× (Npin- 1)/2)) and adjacent leads spacing, after the pin all to the side is completed successively, by chip body and drawn Pin recover as overall to initial position, perform step 2 two；
Step 2 five：Judge whether next side pin to be drawn completes, be as a result yes, complete to No. 1 to No. 4 side The drafting of all pins, be as a result it is no, by next it is to be drawn when rotating to No. 1 where position, perform step 2 two.
Preferably, according to the position of No. 1 pin of actual measurement chip, when the pin drawn is No. 1 pin, to being painted The pin of system is that No. 1 pin makes marks.
The beneficial effect that the present invention is brought is：
1st, the present invention is to realize that the profile of asymmetric pin cake core is drawn by openGL graphic package interface functions. OpenGL be across programming language and it is cross-platform become interface, therefore the inventive method can be realized by a variety of programming languages.
2nd, the inventive method can be not only used for the display of chip mounter actual production process chips profile, it may also be used for its It needs to show the occasion of asymmetric pin-type chip outline in software interface.
3rd, the present invention can be according to the teaching of actual measurement chip and the profile position of test information, accurately display actual measurement chip Put, be accurate to Pixel-level.Because the teaching information for surveying chip includes chip body size, chip pin number, pin length With width, the anglec of rotation of pin spacing chip and X, the offset information of Y-direction.And according to actual measurement chip teaching and test The result arrived, can draw out the chip outline of the offset with the anglec of rotation and X, Y-direction, and the profile can be with actual measurement chip The edge contrast of chip is surveyed in image, more intuitively to show the actual measurement chip of acquisition system acquisition in observation window Parameter accuracy.
4th, present invention may apply to the drafting of the profile of all types asymmetry pin cake core, i.e., according to the data of chip The drafting of adaptive completion profile.
5th, present invention is mainly applied to the progress of the accuracy for the data in chip mounter, being mainly used in gathering acquisition system Verification.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the method for drafting of adaptive asymmetric pin cake core of the present invention；
Fig. 2 is a kind of flow of the method for drafting of adaptive asymmetric pin cake core described in embodiment three Figure；
Fig. 3 and Fig. 4 is a kind of structural representation of asymmetric pin cake core；Wherein, GpinRepresent pin root length Degree, WpinRepresent the width of pin.
Embodiment
Embodiment one：Illustrate present embodiment referring to Fig. 1, it is a kind of adaptive not right described in present embodiment The method for drafting of foot type chip is cited approvingly, this method comprises the following steps：
Step 1：According to actual measurement chip body parameter, chip body rectangular profile, now, the position of chip body are drawn It is defaulted as initial position；The actual measurement chip body parameter includes rectangular profile in X-direction size XbodyWith Y direction size Ybody；The length direction of the rectangular profile is X-direction, and width is Y direction；
Step 2：According to actual measurement chip body each edge between pin number, pin length, pin widths and adjacent leads Away from being drawn successively to the pin in chip body each edge；The pin length is equal to pin root depth and pin foot Minister's degree sum；
Step 3：According to actual measurement chip offset amount and the anglec of rotation, the chip body and pin drawn are used as overall Translated and rotated, so as to complete the drafting to asymmetric pin cake core.
Present embodiment, the body of the asymmetric pin cake core is rectangle, and the present invention is realized by openGL Asymmetric pin cake core is accurately shown in software interface, and (i.e. the pin number of homonymy, length, width, spacing be not or not chip Body and the profile of pin together).Because asymmetric pin cake core species is various, different, this method for drafting can root According to different pieces of information, the adaptive drafting for realizing chip outline.
Adjacent leads spacing is identical in each edge of chip body, and adjacent leads spacing is two adjacent pins Center between distance, for details, reference can be made to Fig. 3.
Embodiment two：Illustrate present embodiment referring to Fig. 1, present embodiment with described in embodiment one A kind of difference of the method for drafting of adaptive asymmetric pin cake core is, described according to actual measurement chip body parameter, The detailed process of rectangular profile for drawing chip body is：According to chip body parameter, using openGL graphic package interface letters Number draws closure line segment, so as to obtain chip body rectangular profile.
Embodiment three：Illustrate present embodiment, present embodiment and embodiment one referring to Fig. 1 and Fig. 2 A kind of difference of the method for drafting of described adaptive asymmetric pin cake core is, in the step 2, according to actual measurement Pin number, pin length, pin widths and adjacent leads spacing in chip body each edge, successively to chip body each edge On the detailed process drawn of pin be：
Step 2 one：Right, upper, left, the lower four edges of chip body are respectively defined as No. 1 to No. 4 side, successively to No. 1 Pin on to No. 4 sides is drawn using openGL graphic packages interface function according to step 2 two to step 2 four, when appoint When number of pins in a line of anticipating is more than or equal to 2, the pin on the side is drawn by the way of from top to bottom；
Step 2 two：Judge whether side number of pins to be drawn is more than 0, judged result is yes, performs step 2 three, is judged As a result it is no, performs step 2 five；
Step 2 three：Graphical pointv is moved to the root center of the side first pin from top to bottom, first pin Root centre coordinate be (Radgroup-Fpin/2,-(Tangroup-Ppin×(Npin- 1)/2)), according to the root of first pin Centre coordinate (Radgroup-Fpin/2,-(Tangroup-Ppin×(Npin- 1)/2)) and first pin root depth, draw The root of first pin；Then, further according to the foot length of first pin, the foot of first pin of drafting, so as to complete Into after the drafting of first pin, step 2 four is performed；
Wherein, RadgroupDistance between the straight line being made up of the central point of all pins on basic point and drafting side, FpinFor the foot length of first pin, TangroupFor the coordinate value of pin set center in the Y-axis direction, pin set center is The center for the set that all pins on drawn side are formed, PpinFor adjacent leads spacing, NpinBy pin on drafting side Number；
Step 2 four：According to the root centre coordinate (Rad of first pingroup-Fpin/2,-(Tangroup-Ppin× (Npin- 1)/2)) and adjacent leads spacing, after the pin all to the side is completed successively, by chip body and drawn Pin recover as overall to initial position, perform step 2 two；
Step 2 five：Judge whether next side pin to be drawn completes, be as a result yes, complete to No. 1 to No. 4 side The drafting of all pins, be as a result it is no, by next it is to be drawn when rotating to No. 1 where position, perform step 2 two.
Present embodiment, the drawing process of pin is simple, can by the present invention adaptive asymmetric pin cake core Method for drafting is embedded into computer-internal, the parameter of the actual measurement chip gathered according to acquisition system, carries out chip outline drafting, whole Individual drawing process, participated in without artificial, according to the parameter of the actual measurement chip of collection, draw out chip outline automatically, and will draw The image of actual measurement chip of the image gone out with gathering compares, and more intuitively shows what acquisition system obtained in observation window Survey the accuracy of the parameter of chip.
Embodiment four：Illustrate present embodiment referring to Fig. 2, present embodiment with described in embodiment three A kind of difference of the method for drafting of adaptive asymmetric pin cake core is, according to the position of No. 1 pin of actual measurement chip, When the pin drawn is No. 1 pin, the pin drawn is made marks for No. 1 pin.
Present embodiment, drawn No. 1 pin is made marks, in order to which the direction of the image to drafting accurately determine Position.

Claims (4)

1. a kind of method for drafting of adaptive asymmetric pin cake core, it is characterised in that this method comprises the following steps：
Step 1：According to actual measurement chip body parameter, chip body rectangular profile is drawn, now, the position acquiescence of chip body For initial position；The actual measurement chip body parameter includes rectangular profile in X-direction size XbodyWith Y direction size Ybody； The length direction of the rectangular profile is X-direction, and width is Y direction；
Step 2：According to actual measurement chip body each edge on pin number, pin length, pin widths and adjacent leads spacing, The pin in chip body each edge is drawn successively；The pin length is equal to pin root depth and grown with pin foot Spend sum；
Step 3：According to actual measurement chip offset amount and the anglec of rotation, the chip body and pin drawn are carried out as overall Translation and rotation, so as to complete the drafting to asymmetric pin cake core.
A kind of 2. method for drafting of adaptive asymmetric pin cake core according to claim 1, it is characterised in that step In rapid one, described according to actual measurement chip body parameter, the detailed process for drawing the rectangular profile of chip body is：According to chip Body parameter, closure line segment is drawn using openGL graphic packages interface function, so as to obtain chip body rectangular profile.
A kind of 3. method for drafting of adaptive asymmetric pin cake core according to claim 1, it is characterised in that institute State in step 2, according to actual measurement chip body each edge on pin number, pin length, pin widths and adjacent leads spacing, The detailed process drawn successively to the pin in chip body each edge is：
Step 2 one：Right, upper, left, the lower four edges of chip body are respectively defined as No. 1 to No. 4 side, successively to No. 1 to No. 4 Pin on side is drawn using openGL graphic packages interface function according to step 2 two to step 2 four, when any one When number of pins on side is more than or equal to 2, the pin on the side is drawn by the way of from top to bottom；
Step 2 two：Judge whether side number of pins to be drawn is more than 0, judged result is yes, performs step 2 three, judged result It is no, performs step 2 five；
Step 2 three：Graphical pointv is moved to the root center of the side first pin from top to bottom, the root of first pin Portion's centre coordinate is (Radgroup-Fpin/2,-(Tangroup-Ppin×(Npin- 1)/2)), according to the root center of first pin Coordinate (Radgroup-Fpin/2,-(Tangroup-Ppin×(Npin- 1)/2)) and first pin root depth, draw first The root of individual pin；Then, further according to the foot length of first pin, the foot of first pin is drawn, so as to complete the After the drafting of one pin, step 2 four is performed；
Wherein, RadgroupBetween the straight line being made up of the central point of all pins on the center and drafting side of chip body Distance, FpinFor the foot length of first pin, TangroupFor the coordinate value of pin set center in the Y-axis direction, in pin set The heart by the center of set that forms of all pins on drafting side, PpinFor adjacent leads spacing, NpinBy on drafting side Pin number；
Step 2 four：According to the root centre coordinate (Rad of first pingroup-Fpin/2,-(Tangroup-Ppin×(Npin-1)/ 2)) and adjacent leads spacing, after the pin all to the side is completed successively, chip body and the pin drawn are made Recover to be overall to initial position, perform step 2 two；
Step 2 five：Judge whether next side pin to be drawn completes, be as a result yes, complete to own No. 1 to No. 4 side The drafting of pin, be as a result it is no, by next it is to be drawn when rotating to No. 1 where position, perform step 2 two.
A kind of 4. method for drafting of adaptive asymmetric pin cake core according to claim 3, it is characterised in that root The position of No. 1 pin of chip is factually surveyed, when the pin drawn is No. 1 pin, the pin drawn is done for No. 1 pin Mark.
CN201710687500.0A 2017-08-11 2017-08-11 A kind of method for drafting of adaptive asymmetric pin cake core Active CN107484341B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112419224A (en) * 2020-07-17 2021-02-26 宁波智能装备研究院有限公司 Spherical pin chip positioning method and system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103729699A (en) * 2014-01-22 2014-04-16 哈尔滨工业大学 Cluster analysis algorithm based element mounting data optimization method
CN104049199A (en) * 2014-06-16 2014-09-17 武汉新芯集成电路制造有限公司 Failure analysis system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103729699A (en) * 2014-01-22 2014-04-16 哈尔滨工业大学 Cluster analysis algorithm based element mounting data optimization method
CN104049199A (en) * 2014-06-16 2014-09-17 武汉新芯集成电路制造有限公司 Failure analysis system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112419224A (en) * 2020-07-17 2021-02-26 宁波智能装备研究院有限公司 Spherical pin chip positioning method and system
CN112419224B (en) * 2020-07-17 2021-08-27 宁波智能装备研究院有限公司 Spherical pin chip positioning method and system

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