CN207340274U - A kind of PCB produces plate - Google Patents
A kind of PCB produces plate Download PDFInfo
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- CN207340274U CN207340274U CN201720923106.8U CN201720923106U CN207340274U CN 207340274 U CN207340274 U CN 207340274U CN 201720923106 U CN201720923106 U CN 201720923106U CN 207340274 U CN207340274 U CN 207340274U
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- annular target
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- plate body
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- production
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Abstract
The utility model discloses a kind of PCB to produce plate, including production plate body, and production plate body is rectangular, wherein four angles of production plate body are equipped with annular target;Annular target is endless groove.Annular target is annular groove.The utility model embodiment provides a kind of PCB productions plate so that image can be exactly transferred to corresponding position on production plate body, avoid the inclined hole of blind hole and cause product quality problems.
Description
Technical field
The present invention relates to printed circuit board production field, more particularly to a kind of PCB production plates.
Background technology
At present, since the demand of scientific and technological development and production, printed circuit board develop into dual platen, multi-layer board from individual layer
And flex plate, and constantly develop to high accuracy, high density and high reliability direction.Correspondingly, blind hole aperture is gradually reduced, this
Requirement to production precision is higher and higher, for HDI plates (high density interconnecting board), it is desirable to more very, and often at present
The PCB production plates of rule are difficult to meet high-precision production requirement.
To solve the above problems, the present invention provides a kind of PCB production plates that disclosure satisfy that production precision.
The content of the invention
It is an object of the invention to provide a kind of PCB to produce plate, and accurate framing is realized in the production of PCB, is carried
High efficiency, ensures the quality of finished product.
A kind of PCB produces plate, including production plate body, and the production plate body is rectangular, wherein the four of production plate body
A angle is equipped with annular target;The annular target is endless groove.
Preferably, the annular target is annular groove.
Preferably, the annulus outer diameter length scope of the annular target is 3.0mm~3.4mm.
Preferably, the annulus outside diameter of the annular target is 3.2mm.
Preferably, the internal radius length range of the annular target is 2.3mm~2.7mm.
Preferably, the internal radius of the annular target is 2.5mm.
Preferably, the ring width length range of the annular target is 0.15mm~0.55mm.
Preferably, the ring width length of the annular target is 0.35mm.
Preferably, spacing is greater than or equal to long edge lengths between the annular target of long side in the production plate body
70%.
Preferably, spacing is greater than or equal to 6mm between the annular target and production plate body edges.
Compared with prior art, the embodiment of the present invention has the advantages that:
An embodiment of the present invention provides a kind of PCB to produce plate, annular target is set on production plate body, and expose in LDI
Relevant position sets telltale mark in image to be transferred in ray machine, in exposure process, by will be to be transferred in LDI exposure machines
Telltale mark on image aims at annular target so that and image can be exactly transferred to corresponding position on production plate body,
Avoid the inclined hole of blind hole and cause product quality problems.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the structure diagram that PCB provided in an embodiment of the present invention produces plate;
Fig. 2 is the cross section structure schematic diagram of Fig. 1;
Fig. 3 is the structure diagram of annular target;
Fig. 4 is the enlarged structure schematic diagram of part A in Fig. 1.
Illustrate:10th, plate body is produced;11st, annular target.
Embodiment
Goal of the invention, feature, advantage to enable the present invention is more obvious and understandable, below in conjunction with the present invention
Attached drawing in embodiment, is clearly and completely described the technical solution in the embodiment of the present invention, it is clear that disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this area
All other embodiment that those of ordinary skill is obtained without making creative work, belongs to protection of the present invention
Scope.
In the present invention, for convenience of description, secondary current layer is defined as adjacent on the inside of current layer one layer, such as:
When current layer is L2, secondary current layer is L3.
Further illustrate technical scheme below with reference to the accompanying drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, the present embodiment provides a kind of PCB produce plate, for being matched with LDI exposure machines so that LDI
Exposure machine can find coordinate setting accurately when exposure carries out image transfer, to be directed at blind hole, realize high-precision image transfer.Its
In, PCB production plates include production plate body 10, and production plate body 10 is rectangular, and four angles of production plate body 10 are equipped with
Annular target 11 so that CDD (imaging sensor) can precisely catch annular target 11, so as to accurately carry out image transfer.
In the present embodiment, annular target 11 is endless groove, and the method for making the target is:Existed using laser drilling machine
Relevant position burns annular groove on pcb board body.Since pcb board is sandwich construction, in order to meet production standard, secondary current layer life
Covered with copper foil on the annular corresponding position of 11 endless groove of target in production plate body 10 and current layer production plate body 10.
Referring to Fig. 3, in the present embodiment, in order to make LDI exposure machines, easy to identification, annular target 11 is annular groove.
Meanwhile efficiently can accurately grab certainly position for the ease of CCD, the annulus outer diameter length scope of annular target 11 for 3.0mm~
3.4mm, it is preferred that the annulus outer diameter length of annular target 11 is set to 3.2mm, which can most save the same of sheet material
When meet the identification requirement of CCD.
Further, since annular target 11 is endless groove, annular 11 center of target includes a cylindrical column structure, should
Column structure is the aiming anchor point of CCD and LDI exposure machines, thus its diameter length should long enough, in order to CCD and
The aiming of LDI exposure machines.The internal radius of the diameter of the column structure namely annular target 11, in the present embodiment, annular mark
The internal radius length range of target 11 is 2.3mm~2.7mm.On the other hand, if 11 internal diameter of annular target is long, with outer diameter side
Edge causes to be unfavorable for distinguishing apart from too short, and therefore, the internal radius of annular target 11 is set to the preferred side that 2.5mm is the present embodiment
Case.Correspondingly, the ring width length range of annular target 11 is 0.15mm~0.55mm, and preferable ring width length is 0.35mm.
In order to avoid annular target 11 impacts image to be transferred, in the present embodiment, in production plate body 10
70% of spacing more than or equal to long edge lengths between the annular target 11 of long side, meanwhile, the ring of short side in production plate body 10
Spacing is greater than or equal to the 70% of bond length between shape target 11.The benefit so set is so that annular target 11 to the greatest extent may be used
The edge of production plate body 10 is distributed in energy, reduces the influence to exposure effect.
On the other hand, if annular target 11 gets too close to 10 edge of production plate body, plate avalanche is be easy to cause, in order to
The above problem is avoided, referring to Fig. 4, in the present embodiment, spacing is set between 10 edge of annular target 11 and production plate body
For more than or equal to 6mm.
Based on above-mentioned each embodiment, the production plate body 10 with annular target 11 is carried out when using LDI exposure machines
When image shifts, following steps are specifically included:
1) telltale mark is set in image to be transferred in LDI exposure machines, the telltale mark is with producing on plate body 10
11 position of annular target it is corresponding;
2) telltale mark in image to be transferred is directed at target;
3) start the exposure of LDI exposure machines, carry out image transfer.
In the present embodiment, positioned for the ease of the aiming of LDI exposure machines, telltale mark and annular in image to be transferred
The shape of target 11, position match, and position mark shape is circular ring shape.
For the ease of aliging between plate, in the present embodiment, production plate body 10 is rectangle, and annular target 11 is arranged on production plate
On four angles of body 10;Telltale mark is divided into image outer edge to be transferred.
The present invention provides a kind of PCB to produce plate, annular target 11 is set on production plate body 10, and expose in LDI
Relevant position sets telltale mark in image to be transferred in machine, in exposure process, by by figure to be transferred in LDI exposure machines
As upper telltale mark aims at annular target 11 so that image can be exactly transferred to corresponding position on production plate body 10
Put, product quality problems caused by avoiding the inclined hole of blind hole, are accurately positioned so as to fulfill blind hole, ensure that the quality of finished product.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those of ordinary skill in the art that:It still can be to preceding
State the technical solution described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic;And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical solution.
Claims (10)
1. a kind of PCB produces plate, including production plate body, it is characterised in that the production plate body is rectangular, wherein producing plate
Four angles of body are equipped with annular target;The annular target is endless groove.
2. PCB according to claim 1 produces plate, it is characterised in that the annular target is annular groove.
3. PCB according to claim 1 produces plate, it is characterised in that the annulus outer diameter length scope of the annular target
For 3.0mm~3.4mm.
4. PCB according to claim 3 produces plate, it is characterised in that the annulus outside diameter of the annular target is 3.2mm.
5. PCB according to claim 1 produces plate, it is characterised in that the internal radius length range of the annular target
For 2.3mm~2.7mm.
6. PCB according to claim 5 produces plate, it is characterised in that the internal radius of the annular target is 2.5mm.
7. PCB according to claim 1 produces plate, it is characterised in that the ring width length range of the annular target is
0.15mm~0.55mm.
8. PCB according to claim 7 produces plate, it is characterised in that the ring width length of the annular target is 0.35mm.
9. PCB according to claim 1 produces plate, it is characterised in that the annular target of long side in the production plate body
Between spacing be greater than or equal to long edge lengths 70%.
10. PCB according to claim 1 produces plate, it is characterised in that the annular target and production plate body edges it
Between spacing be greater than or equal to 6mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201720923106.8U CN207340274U (en) | 2017-07-27 | 2017-07-27 | A kind of PCB produces plate |
Applications Claiming Priority (1)
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CN201720923106.8U CN207340274U (en) | 2017-07-27 | 2017-07-27 | A kind of PCB produces plate |
Publications (1)
Publication Number | Publication Date |
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CN207340274U true CN207340274U (en) | 2018-05-08 |
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CN201720923106.8U Active CN207340274U (en) | 2017-07-27 | 2017-07-27 | A kind of PCB produces plate |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107278022A (en) * | 2017-07-27 | 2017-10-20 | 东莞市五株电子科技有限公司 | A kind of PCB production plates and the processing method that plate is produced based on the PCB |
CN109785324A (en) * | 2019-02-01 | 2019-05-21 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of large format pcb board localization method |
-
2017
- 2017-07-27 CN CN201720923106.8U patent/CN207340274U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107278022A (en) * | 2017-07-27 | 2017-10-20 | 东莞市五株电子科技有限公司 | A kind of PCB production plates and the processing method that plate is produced based on the PCB |
CN109785324A (en) * | 2019-02-01 | 2019-05-21 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of large format pcb board localization method |
CN109785324B (en) * | 2019-02-01 | 2020-11-27 | 佛山市南海区广工大数控装备协同创新研究院 | Large-format PCB positioning method |
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