CN208953889U - A kind of LED projection illumination photolithographic imaging system - Google Patents
A kind of LED projection illumination photolithographic imaging system Download PDFInfo
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- CN208953889U CN208953889U CN201821881013.4U CN201821881013U CN208953889U CN 208953889 U CN208953889 U CN 208953889U CN 201821881013 U CN201821881013 U CN 201821881013U CN 208953889 U CN208953889 U CN 208953889U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 69
- 238000005286 illumination Methods 0.000 title abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 62
- 230000003321 amplification Effects 0.000 claims abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 14
- 238000000206 photolithography Methods 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 239000011324 bead Substances 0.000 claims description 24
- 230000007306 turnover Effects 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001259 photo etching Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a kind of LED projection illumination photolithographic imaging system, the capacity gauge of its light energy is strong, it is high to illuminate utilization ratio of optical energy, light source assembly including sequence setting, optical module, DMD display chip, image-forming assembly, the light source assembly is for generating hot spot, the light source assembly includes light collector, the optical module includes the optical tunnel of sequence setting, collimation amplification optical path, reflecting mirror, deflecting prism, the Energy distribution for the hot spot that the optical tunnel generates the light source assembly is uniform, the collimation amplification optical path amplifies the hot spot, the reflecting mirror is used to adjust the direction of hot spot, the deflecting prism is for adjusting hot spot, the DMD display chip receives the hot spot across the deflecting prism, and the hot spot is converted into after patterned light beam transmitting to the deflecting prism, the turnover Prism is also used to for the patterned light beam to be projected to the image-forming assembly, and the patterned light beam is imaged in photolithography plate by the image-forming assembly.
Description
Technical field
The utility model belongs to the technical field of light source direct putting type exposure machine, and in particular to a kind of LED projection illumination photoetching
Imaging system.
Background technique
Light source direct putting type photoetching machine equipment is also known as the direct device for projecting of image, can be applied to semiconductor and PCB and plane
Research and development, the production of imaging field.DLP projection imaging system is one of the core devices of direct putting type equipment.DLP projection imaging system
Being is digital micromirror array (DMD) illumination using light source, and computer controls digital micromirror array and generates figure, and figure passes through projection
Camera lens projects on photolithography plate.
The illumination intensity of DLP projection imaging system be limited to the angle of divergence of LED light source, the focusing capability of illumination path, at
As the numerical aperture of optical path, the LED lamp bead of traditional LED projection illumination photolithographic imaging system is collected by lens array, reflector
The illumination intensity of light, traditional LED projection illumination photolithographic imaging system is limited to lens array interval, illumination light energy utilization
Rate is lower.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of LED projection illumination photolithographic imaging system, the receipts of light energy
Collection ability is strong, and illumination utilization ratio of optical energy is high.
Its technical solution is such that a kind of LED projection illumination photolithographic imaging system, which is characterized in that including sequentially setting
Light source assembly, optical module, the DMD display chip, image-forming assembly set, the light source assembly is for generating hot spot, the light source
Component includes light collector, and the optical module includes the optical tunnel of sequence setting, collimation amplification optical path, reflecting mirror, turnover
The Energy distribution of prism, the hot spot that the optical tunnel generates the light source assembly is uniform, and the collimation amplifies optical path for institute
Hot spot amplification is stated, the reflecting mirror is used to adjust the direction of hot spot, and for adjusting hot spot, the DMD is shown the deflecting prism
Chip receives the hot spot across the deflecting prism, and emits after the hot spot is converted to patterned light beam to the turnover rib
Mirror, the deflecting prism are also used to for the patterned light beam being projected to the image-forming assembly, and the image-forming assembly is by the figure
Light beam images in photolithography plate.
Further, the light source assembly includes LED lamp bead array, the light collector, focus lamp that sequence is arranged, described
Light collector collects the light that the LED lamp bead array generates and forms hot spot by the focus lamp.
Further, the light collector is tapered light pipe or cone prism.
Further, the image-forming assembly is telecentric imaging camera lens or non-telecentric imaging camera lens.
Further, when the light source assembly is provided at least two groups, the light source assembly includes the LED of sequence setting
Lamp bead array, light collector, collimating mirror, the light collector are collected the light that the LED lamp bead array generates and are passed through
The collimating mirror forms collimation hot spot, and preposition turnover is sequentially set between the light source assembly and the optical module
Prism, collimation focusing mirror, collimation dot projection for generating light source assembly is into the optical module.
The LED projection illumination photolithographic imaging system of the utility model has the advantage that light source assembly is provided with light receipts
Storage is for collecting light, and as the tapered light pipe and cone prism of light collector, light-emitting window is closely coupled, light-emitting window it
Between interval can be spliced with zero distance, effective reduce collects facula area, increases the light spot energy density on unit area, has
Then the capacity gauge of the increase light energy of effect sequentially amplifies optical path by the optical tunnel of optical module, collimation, reflecting mirror, turns
Prism is rolled over, the Energy distribution for the hot spot that optical tunnel generates light source assembly is uniform, and collimation amplification optical path amplifies hot spot, reflects
Mirror is used to adjust the direction of hot spot, deflecting prism for adjusting hot spot, then by DMD display chip generate figure and by
As component images in photolithography plate, image-forming assembly can be selected according to the height of the resolution ratio of photolithographic imaging system, work as resolution
When rate is higher, imaging lens use the telecentric imaging camera lens using large-numerical aperture；When resolution is low, imaging lens use
Non- telecentric imaging camera lens, since the light source angle of divergence is larger, the illuminating ray that LED lamp bead array issues is after optical module adjusts
The hot spot angle of divergence it is still larger, telecentric imaging camera lens can not be fully utilized illuminating ray, and non-telecentric imaging camera lens completely can be with
Using the illumination spot of LED, non-telecentric imaging camera lens due to its be imaged property it is lower than telecentric imaging camera lens, low resolution
Photolithographic imaging system can use non-telecentric imaging camera lens, non-telecentric imaging Lens are smaller, and capacity usage ratio is higher.
Detailed description of the invention
Fig. 1 is that the LED projection of specific embodiment 1 illuminates the schematic diagram of photolithographic imaging system；
Fig. 2 is that the LED projection of specific embodiment 2 illuminates the schematic diagram of photolithographic imaging system；
Fig. 3 is that the LED projection of specific embodiment 3 illuminates the schematic diagram of photolithographic imaging system；
Fig. 4 is that the LED projection of specific embodiment 4 illuminates the schematic diagram of photolithographic imaging system.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Specific embodiment 1: being shown in Fig. 1, and a kind of LED projection illuminates photolithographic imaging system, light source assembly including sequence setting,
Optical module, DMD display chip, image-forming assembly, light source assembly include the LED of sequence setting for generating hot spot, light source assembly
Lamp bead array 1, light collector 2, focus lamp 3, light collector 2 are tapered light pipe, and light collector 2 collects LED lamp bead battle array
The light of the generation of column 1 simultaneously forms hot spot by focus lamp 3, and optical module includes the optical tunnel 4 of sequence setting, collimates amplification optical path
5, the Energy distribution of reflecting mirror 10, deflecting prism 7, the hot spot that optical tunnel 4 generates light source assembly is uniform, collimation amplification optical path
5 amplify hot spot, enlargement ratio β, and reflecting mirror 10 is used to adjust the direction of hot spot, and deflecting prism 7 is used to adjust hot spot,
DMD display chip 6 receives the hot spot across deflecting prism 7, and emits after hot spot is converted to patterned light beam to deflecting prism 7,
Deflecting prism 7 is also used to for patterned light beam being projected to image-forming assembly 8, and patterned light beam is imaged in photolithography plate 9 by image-forming assembly 8,
In the present embodiment, image-forming assembly 8 is telecentric imaging camera lens.
In the present embodiment, light collector 2 is to collect light by tapered light pipe, and tapered light pipe can also be changed to taper rib
Mirror collects light, and the light-emitting window of each tapered light pipe is closely coupled, and effective reduce collects facula area, effectively increase unit plane
Light spot energy density in product, photolithographic imaging system is high-resolution, therefore uses telecentric imaging camera lens.
Specific embodiment 2: being shown in Fig. 2, and a kind of LED projection illuminates photolithographic imaging system, the resolution ratio of photolithographic imaging system compared with
Low, light source assembly, optical module, DMD display chip, image-forming assembly including sequence setting, light source assembly are used to generate hot spot,
Light source assembly includes the LED lamp bead array 1 of sequence setting, light collector 2, focus lamp 3, and light collector 2 is tapered light pipe,
Light collector 2 collects the light that LED lamp bead array 1 generates and forms hot spot by focus lamp 3, and optical module includes that sequence is set
Optical tunnel 4, the collimation set amplify optical path 5, reflecting mirror 10, deflecting prism 7, the hot spot that optical tunnel 4 generates light source assembly
Energy distribution is uniform, and collimation amplification optical path 5 amplifies hot spot, and enlargement ratio β, reflecting mirror 10 is used to adjust the side of hot spot
To for deflecting prism 7 for adjusting hot spot, DMD display chip 6 receives the hot spot across deflecting prism 7, and hot spot is converted to figure
To deflecting prism 7, deflecting prism 7 is also used to for patterned light beam being projected to image-forming assembly 8b, image-forming assembly 8b for transmitting after shaped light beam
Patterned light beam is imaged in into photolithography plate 9, in the present embodiment, image-forming assembly 8b is non-telecentric imaging camera lens.
In the present embodiment, light collector 2 is to collect light by tapered light pipe, and tapered light pipe can also be changed to taper rib
Mirror collects light, and the light-emitting window of each tapered light pipe is closely coupled, and effective reduce collects facula area, effectively increase unit plane
Light spot energy density in product uses non-telecentric imaging camera lens in the present embodiment, since the LED lamp bead array angle of divergence is larger,
The hot spot angle of divergence of the LED lamp bead array after optical module is still larger, and illumination light can not be fully utilized in telecentric imaging camera lens
Line, non-telecentric imaging camera lens can use the illumination spot of LED lamp bead array completely, and non-telecentric imaging camera lens is due to its imaging
Matter is lower than telecentric imaging camera lens.Therefore, the photolithographic imaging system of low resolution can use non-telecentric imaging camera lens, non-telecentricity at
Picture Lens are smaller, and capacity usage ratio is higher.
Specific embodiment 3: being shown in Fig. 3, and a kind of LED projection illuminates photolithographic imaging system, light source assembly including sequence setting,
Optical module, DMD display chip, image-forming assembly, light source assembly is for generating hot spot, in the present embodiment, light source assembly setting
There are 2 groups, light source assembly includes the LED lamp bead array 1 of sequence setting, light collector 2, collimating mirror 11, and light collector 2 is cone
Shape light pipe, light collector 2 collects the light that LED lamp bead array 1 generates and forms collimation hot spot by collimating mirror 11, and is located at
Preposition deflecting prism 12, collimation focusing mirror 13 are sequentially set between light source assembly and optical module, for producing light source assembly
For raw collimation dot projection into optical module, optical module includes the optical tunnel 4 of sequence setting, collimation amplification optical path 5, reflecting mirror
10, the Energy distribution of deflecting prism 7, the hot spot that optical tunnel 4 generates light source assembly is uniform, and collimation amplifies optical path 5 for hot spot
Amplification, enlargement ratio β, reflecting mirror 10 are used to adjust the direction of hot spot, and deflecting prism 7 shows core for adjusting hot spot, DMD
Piece 6 receives the hot spot across deflecting prism 7, and emits after hot spot is converted to patterned light beam to deflecting prism 7, deflecting prism 7
It is also used to for patterned light beam being projected to image-forming assembly 8c, patterned light beam is imaged in photolithography plate 9 by image-forming assembly 8c, in the present embodiment
In, image-forming assembly 9 is telecentric imaging camera lens.
In the present embodiment, 2 light source assemblies are provided with, it is poly- that preposition deflecting prism 12, collimation are inserted among focus lamp 3
Burnt mirror 13 is effectively increased the light energy output of lighting system for assembling the illuminating ray of 2 light source assemblies.
Specific embodiment 4: being shown in Fig. 4, and a kind of LED projection illuminates photolithographic imaging system, light source assembly including sequence setting,
Optical module, DMD display chip, image-forming assembly, light source assembly is for generating hot spot, in the present embodiment, light source assembly setting
There are 2 groups, light source assembly includes the LED lamp bead array 1 of sequence setting, light collector 2, collimating mirror 11, and light collector 2 is cone
Shape light pipe, light collector 2 collects the light that LED lamp bead array 1 generates and forms collimation hot spot by collimating mirror 11, and is located at
Preposition deflecting prism 12, collimation focusing mirror 13 are sequentially set between light source assembly and optical module, for producing light source assembly
For raw collimation dot projection into optical module, optical module includes the optical tunnel 4 of sequence setting, collimation amplification optical path 5, reflecting mirror
10, the Energy distribution of deflecting prism 7, the hot spot that optical tunnel 4 generates light source assembly is uniform, and collimation amplifies optical path 5 for hot spot
Amplification, enlargement ratio β, reflecting mirror 10 are used to adjust the direction of hot spot, and deflecting prism 7 shows core for adjusting hot spot, DMD
Piece 6 receives the hot spot across deflecting prism 7, and emits after hot spot is converted to patterned light beam to deflecting prism 7, deflecting prism 7
It is also used to for patterned light beam being projected to image-forming assembly 8, patterned light beam is imaged in photolithography plate 9 by image-forming assembly 8, in the present embodiment
In, image-forming assembly 9 is non-telecentric imaging camera lens.
In the present embodiment, 2 light source assemblies are provided with, it is poly- that preposition deflecting prism 12, collimation are inserted among focus lamp 3
Burnt mirror 13 is effectively increased the light energy output of lighting system, light is received for assembling the illuminating ray of 2 light source assemblies
Storage 2 is that light is collected by tapered light pipe, and tapered light pipe can also be changed to cone prism and collect light, and each tapered light pipe goes out
Optical port is closely coupled, and effective reduce collects facula area, effectively increases the light spot energy density on unit area, in this implementation
Since the resolution ratio of photolithographic imaging system is lower in example, using non-telecentric imaging camera lens, due to the LED lamp bead array angle of divergence compared with
Greatly, the hot spot angle of divergence of the LED lamp bead array after optical module is still larger, and illumination can not be fully utilized in telecentric imaging camera lens
Light, non-telecentric imaging camera lens can use the illumination spot of LED lamp bead array completely, and non-telecentric imaging camera lens is due to its imaging
Property is lower than telecentric imaging camera lens.Therefore, the photolithographic imaging system of low resolution can use non-telecentric imaging
Camera lens, non-telecentric imaging Lens are smaller, and capacity usage ratio is higher.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of LED projection illuminates photolithographic imaging system, it is characterised in that: light source assembly, optical module including sequence setting,
DMD display chip, image-forming assembly, for the light source assembly for generating hot spot, the light source assembly includes light collector, described
Optical module includes the optical tunnel of sequence setting, collimation amplification optical path, reflecting mirror, deflecting prism, and the optical tunnel makes described
The Energy distribution for the hot spot that light source assembly generates is uniform, and the collimation amplification optical path amplifies the hot spot, and the reflecting mirror is used
In the direction of adjustment hot spot, the deflecting prism is received for adjusting hot spot, the DMD display chip across the deflecting prism
Hot spot, and the hot spot is converted into transmitting after patterned light beam, to the deflecting prism, the deflecting prism is also used to institute
It states patterned light beam and is projected to the image-forming assembly, the patterned light beam is imaged in photolithography plate by the image-forming assembly.
2. a kind of LED projection according to claim 1 illuminates photolithographic imaging system, it is characterised in that: the light source assembly
LED lamp bead array, light collector, focus lamp including sequence setting, the light collector collect the LED lamp bead array
The light of generation simultaneously forms hot spot by the focus lamp.
3. a kind of LED projection according to claim 1 illuminates photolithographic imaging system, it is characterised in that: the ray-collecting
Device is tapered light pipe.
4. a kind of LED projection according to claim 1 illuminates photolithographic imaging system, it is characterised in that: the ray-collecting
Device is cone prism.
5. a kind of LED projection according to claim 1 illuminates photolithographic imaging system, it is characterised in that: the image-forming assembly
For telecentric imaging camera lens.
6. a kind of LED projection according to claim 1 illuminates photolithographic imaging system, it is characterised in that: the image-forming assembly
For non-telecentric imaging camera lens.
7. a kind of LED projection according to claim 1 illuminates photolithographic imaging system, it is characterised in that: when the light source group
When part is provided at least two groups, the light source assembly includes the LED lamp bead array of sequence setting, light collector, collimating mirror, institute
It states light collector to collect the light of the LED lamp bead array generation and form collimation hot spot by the collimating mirror, and is located at
It is sequentially set with preposition deflecting prism, collimation focusing mirror between the light source assembly and the optical module, is used for light source group
The collimation dot projection that part generates is into the optical module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821881013.4U CN208953889U (en) | 2018-11-15 | 2018-11-15 | A kind of LED projection illumination photolithographic imaging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821881013.4U CN208953889U (en) | 2018-11-15 | 2018-11-15 | A kind of LED projection illumination photolithographic imaging system |
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| CN208953889U true CN208953889U (en) | 2019-06-07 |
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| CN201821881013.4U Withdrawn - After Issue CN208953889U (en) | 2018-11-15 | 2018-11-15 | A kind of LED projection illumination photolithographic imaging system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254503A (en) * | 2018-11-15 | 2019-01-22 | 苏州源卓光电科技有限公司 | A kind of LED projection illumination photolithographic imaging system |
| CN110456612A (en) * | 2019-07-02 | 2019-11-15 | 苏州源卓光电科技有限公司 | A kind of high efficiency projecting etching imaging system and exposure method |
| CN110501868A (en) * | 2019-08-16 | 2019-11-26 | 银月光学(苏州)有限公司 | Optical projection system, exposure sources |
| CN110515277A (en) * | 2019-08-16 | 2019-11-29 | 俞庆平 | A kind of module of optical system suitable for laser direct-writing exposure sources |
-
2018
- 2018-11-15 CN CN201821881013.4U patent/CN208953889U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254503A (en) * | 2018-11-15 | 2019-01-22 | 苏州源卓光电科技有限公司 | A kind of LED projection illumination photolithographic imaging system |
| CN109254503B (en) * | 2018-11-15 | 2024-06-25 | 源卓微纳科技(苏州)股份有限公司 | LED projection illumination photoetching imaging system |
| CN110456612A (en) * | 2019-07-02 | 2019-11-15 | 苏州源卓光电科技有限公司 | A kind of high efficiency projecting etching imaging system and exposure method |
| CN110501868A (en) * | 2019-08-16 | 2019-11-26 | 银月光学(苏州)有限公司 | Optical projection system, exposure sources |
| CN110515277A (en) * | 2019-08-16 | 2019-11-29 | 俞庆平 | A kind of module of optical system suitable for laser direct-writing exposure sources |
| CN110515277B (en) * | 2019-08-16 | 2021-07-09 | 俞庆平 | Optical system component suitable for laser direct-writing exposure equipment |
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| CP01 | Change in the name or title of a patent holder |
Address after: 215000 Room 102, building C5, Ting LAN lane, Suzhou Industrial Park, Jiangsu, China, 192 Patentee after: Yuanzhuo Micro Nano Technology (Suzhou) Co.,Ltd. Address before: 215000 Room 102, building C5, Ting LAN lane, Suzhou Industrial Park, Jiangsu, China, 192 Patentee before: ADVANCED MICRO OPTICS.INC |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190607 Effective date of abandoning: 20240625 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190607 Effective date of abandoning: 20240625 |