CN202631568U - Micro-monitoring type optional area atomic force microimaging device - Google Patents

Micro-monitoring type optional area atomic force microimaging device Download PDF

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Publication number
CN202631568U
CN202631568U CN 201220275151 CN201220275151U CN202631568U CN 202631568 U CN202631568 U CN 202631568U CN 201220275151 CN201220275151 CN 201220275151 CN 201220275151 U CN201220275151 U CN 201220275151U CN 202631568 U CN202631568 U CN 202631568U
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China
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micro
afm
monitoring
atomic force
sample
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Expired - Fee Related
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CN 201220275151
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Chinese (zh)
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丑若帆
刘明月
张冬仙
章海军
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The utility model discloses a micro-monitoring type optional area atomic force microimaging device. A method of combining optical microscope monitoring and microimaging of an AFM (Atomic Force Microscope) and combining an AFM scanner and a two-dimensional stepping micropositioner is adopted to realize the microscope monitoring of the AFM scanning area and optional area AFM imaging. The micro-monitoring type optional area atomic force microimaging device comprises an AFM probe and an AFM imaging and controlling system, wherein the AFM probe comprises a laser device, a half-transparent and half-reflecting prism, a microprobe, a position sensing element, a sample, a sample stage, a scanner, a microscope objective, a CCD (Charge Coupled Device), the two-dimensional stepping micropositioner; and the AFM imaging and controlling system comprises a front amplifier, an XY scanning and Z feedback control unit, an XYZ high-pressure amplification module, a stepping control module, a video collection module, a computer and a hardware interface. The micro-monitoring type optional area atomic force microimaging device has the advantages that real-time monitoring and area selection of micronano sample scanning areas are realized, the adjustment and alignment of an optical path can be monitored, the approach process of the sample and the microprobe is monitored, and the randomness, blindness and limitness of the conventional AFM technology in the aspects are overcome.

Description

But a kind of micro-monitoring type constituency atomic force microscopic imaging device
Technical field
But the utility model relates to a kind of micro-monitoring type constituency atomic force microscopic imaging device.
Background technology
Micro-nano technology is the high-technology field of develop rapidly in recent years in the world, U.S.A, Europe, day etc. developed country and China all list micro-nano technology in first develop in the 21st century national science and technology development strategy cutting edge technology field.With PSTM (STM) and atomic force microscope (AFM) etc. is scanning probe microscopy (SPM) family of representative; Being to use very micro-nano widely Testing Technology and Instruments in the micro-nano technical field, is one of important foundation of micro-nano technical development.Wherein, AFM does not receive the restriction of electric conductivity (conductor, semiconductor and insulator), magnetic (magnet and nonmagnetic body) and polymorphic material (solid-state, colloid and liquid state) of micro-nano sample etc.; Thereby the research in micro-nano technology and subdiscipline thereof and use more extensive, to science and technology particularly the development of micro-nano technology played important impetus.
It may be noted that; Domestic and international most of AFM technology and instrument (following conventional type or the plain edition AFM of also claiming); Though its scanning accuracy of detection can reach nanometer scale, also exists complicated operation, maintenance requirement selection harsh, scanning area to exist randomness and blindness, micro-imaging performance to have shortcomings such as limitation.For example; Because the micro-cantilever of AFM is small-sized, total length is generally 100 μ m or 200 μ m, and the point size of micro-cantilever is generally in micron dimension; If there is not micro-monitoring; Be difficult to diameter is aimed at the micro-cantilever point at the laser facula of micron dimension, and the quality of the focusing of laser facula and qualities of regulation such as aiming at directly has influence on AFM scanning imagery quality; Equally, do not having under the situation of micro-monitoring, AFM can only be randomly with micro-cantilever (microprobe) to microprobe over against the sample surfaces zone carry out scanning imagery, thereby have randomness and blindness; In addition, also can't carry out constituency and AFM scanning imagery to own interested sample surfaces zone.Therefore, need on principle, method and the technical feature of AFM, further develop and innovate.
Optical microphotograph is monitored the method that combines with atomic force microscope (AFM) micro-imaging; And the method that the AFM scanner is combined with two-dimentional stepping micropositioner; Realize the real-time monitoring and the constituency of micro-nano sample scanning area; And can monitor the adjusting and the alignment procedures of laser beam and AFM micro-cantilever (integrating) with microprobe; Simultaneously; Monitor the micro-nano approximate procedure of sample and AFM micro-cantilever (microprobe) effectively, overcome conventional AFM randomness, blindness and limitation in these areas, but for the micro-monitoring constituency (in micron to the centimetre-sized visual field optional zone) of realizing sample, the atomic force micro-imaging of (micron order sweep limit and the splicing of adjacent scan image), high resolving power (nanometer scale) provides new technical method on a large scale.
Summary of the invention
The purpose of the utility model be overcome that conventional AFM aims at micro-cantilever with constituency, hot spot in the monitoring of sample scanning area, randomness, blindness and limitation that aspects such as sample and the monitoring of microprobe approximate procedure exist, but a kind of micro-monitoring type constituency atomic force microscopic imaging device is provided.
But but micro-monitoring type constituency atomic force microscopic imaging device comprises micro-monitoring type constituency AFM probe, prime amplifier, XY scanning and Z feedback control unit, XYZ high pressure amplifying, stepping control module, video acquisition module, computing machine and hardware interface; Prime amplifier is connected with laser instrument and position sensor; Be connected with the Z feedback control unit with XY scanning simultaneously; XY scanning and Z feedback control unit and XYZ high pressure amplifying and computing machine and hardware interface are connected; Stepping control module two ends are connected with stepper motor, computing machine and hardware interface respectively, and the video acquisition module two ends are connected with CCD, computing machine and hardware interface respectively.
But described micro-monitoring type constituency AFM probe comprises laser instrument, vertical adjusting screw rod, horizontal adjustment screw rod, semi-transparent semi-reflecting prism, microprobe, gib screw, mounting blocks, position sensor, sample, sample stage, scanner, microcobjective, extend neck, lens barrel, CCD, assembling stand, monitoring hole, backing plate, two-dimentional stepping micropositioner, screw mechanism, stepper motor, coarse adjustment knob, fine tuning knob, guide rail, track base, column, crossbeam, voussoir, reinforcement, base; Laser instrument is regulated and is fixed on the mounting blocks by vertical adjusting screw rod and horizontal adjustment screw rod, and position sensor is fixed on the mounting blocks by gib screw, and mounting blocks and assembling stand are fixed together; Semi-transparent semi-reflecting prism is adhesively fixed and fixes on the assembling stand lower end; Assembling stand central authorities have the monitoring hole, and assembling stand is installed on the guide rail, through regulating coarse adjustment knob and the vertical up-or-down movement of fine tuning knob; Microcobjective, extend neck, lens barrel, CCD are connected in order, extend neck is fixed on the crossbeam; Crossbeam is fixed on the column through voussoir, and column is installed on the base through reinforcement, and sample (16) is installed on the sample stage of scanner; Scanner is installed on the two-dimentional stepping micropositioner through backing plate, and two-dimentional stepping micropositioner is installed on the base.
The advantage of the utility model with the innovation part is: real-time monitoring and the constituency that can realize micro-nano sample scanning area effectively; And can monitor the adjusting and the alignment procedures of laser beam and AFM micro-cantilever; Simultaneously; Can monitor the micro-nano approximate procedure of sample and AFM micro-cantilever (microprobe) effectively; Overcome conventional AFM technology randomness, blindness and limitation in these areas, but for the micro-monitoring constituency (in micron to the centimetre-sized visual field optional zone) of realizing sample, the atomic force micro-imaging of (micron order sweep limit and the splicing of adjacent scan image), high resolving power (nanometer scale) provides new technical method on a large scale.
Description of drawings
But Fig. 1 is a micro-monitoring type constituency atomic force microscopic imaging device structural representation;
But Fig. 2 is the micro-monitoring type constituency AFM probe synoptic diagram of the utility model;
Among the figure: AFM probe 1, prime amplifier 2, XY scanning and Z feedback control unit 3, XYZ high pressure amplifying 4, stepping control module 5, video acquisition module 6, computing machine and hardware interface 7; Comprise laser instrument 8; Vertical adjusting screw rod 9; Horizontal adjustment screw rod 10; Semi-transparent semi-reflecting prism 11; Microprobe 12; Gib screw 13; Mounting blocks 14; Position sensor 15; Sample 16; Sample stage 17; Scanner 18; Microcobjective 19; Extend neck 20; Lens barrel 21; CCD22; Assembling stand 23; Monitoring hole 24; Backing plate 25; Two dimension stepping micropositioner 26; Screw mechanism 27; Stepper motor 28; Coarse adjustment knob 29; Fine tuning knob 30; Guide rail 31; Track base 32; Column 33; Crossbeam 34; Voussoir 35; Reinforcement 36; Base 37.
Embodiment
But micro-monitoring type constituency atomic force micro imaging method: adopt the method that the optical microphotograph monitoring is combined with the atomic force microscope micro-imaging; And the method that the afm scan device is combined with two-dimentional stepping micropositioner; Introduce semi-transparent semi-reflecting prism, optical microphotograph object lens and CCD, real-time micro-monitoring is carried out in the afm scan zone of sample; Simultaneously, the adjusting and the alignment procedures of laser beam being shone hot spot on the atomic force microscope microprobe are monitored, thereby effectively improve the operating performance and the scanning imagery quality of atomic force microscope; In addition, the micro-nano approximate procedure of sample and atomic force microscope microprobe is monitored, thereby improved micro-nano efficient and reliability of approaching operation; Introduce two-dimentional stepping micropositioner, under micro-monitoring, the constituency is carried out in interested sample surfaces zone, and cooperate the afm scan device to realize the atomic force micro-imaging of sample surfaces arbitrary region; On this basis, further realize the micro-monitoring of sample, in micron to the centimetre-sized visual field optional zone, from micron order sweep limit and the splicing of adjacent scan image obtain on a large scale, the high-resolution atomic force microscope imaging of nanometer scale.
As shown in Figure 1, but but micro-monitoring type constituency atomic force microscopic imaging device comprises micro-monitoring type constituency AFM probe 1, prime amplifier 2, XY scanning and Z feedback control unit 3, XYZ high pressure amplifying 4, stepping control module 5, video acquisition module 6, computing machine and hardware interface 7; Prime amplifier 2 is connected with laser instrument 8 and position sensor 15; Be connected with Z feedback control unit 3 with XY scanning simultaneously; XY scanning and Z feedback control unit 3 and XYZ high pressure amplifying 4 and computing machine and hardware interface 7 are connected; Stepping control module 5 two ends are connected with stepper motor 28, computing machine and hardware interface 7 respectively, and video acquisition module 6 two ends are connected with CCD22, computing machine and hardware interface 7 respectively.
As shown in Figure 2, but described micro-monitoring type constituency AFM probe 1 comprises laser instrument 8, vertical adjusting screw rod 9, horizontal adjustment screw rod 10, semi-transparent semi-reflecting prism 11, microprobe 12, gib screw 13, mounting blocks 14, position sensor 15, sample 16, sample stage 17, scanner 18, microcobjective 19, extend neck 20, lens barrel 21, CCD22, assembling stand 23, monitoring hole 24, backing plate 25, two-dimentional stepping micropositioner 26, screw mechanism 27, stepper motor 28, coarse adjustment knob 29, fine tuning knob 30, guide rail 31, track base 32, column 33, crossbeam 34, voussoir 35, reinforcement 36, base 37; Laser instrument 8 is regulated and is fixed on the mounting blocks 14 by vertical adjusting screw rod 9 and horizontal adjustment screw rod 10, and position sensor 15 is fixed on the mounting blocks 14 by gib screw 13, and mounting blocks 14 is fixed together with assembling stand 23; Semi-transparent semi-reflecting prism 11 is adhesively fixed and fixes on assembling stand 23 lower ends; Assembling stand 23 central authorities have monitoring hole 24, and assembling stand 23 is installed on the guide rail 31, through regulating coarse adjustment knob 29 and 30 vertical up-or-down movements of fine tuning knob; Microcobjective 19, extend neck 20, lens barrel 21, CCD22 are connected in order, extend neck 20 is fixed on the crossbeam 34; Crossbeam 34 is fixed on the column 33 through voussoir 35, and column is installed on the base 37 through reinforcement 36, and sample 16 is installed on the sample stage 17 of scanner 18; Scanner 18 is installed on the two-dimentional stepping micropositioner 26 through backing plate 25, and two-dimentional stepping micropositioner 26 is installed on the base 37.
But micro-monitoring type constituency AFM probe is introduced semi-transparent semi-reflecting prism, microcobjective and CCD etc., and the AFM scanning area of sample is carried out real-time micro-monitoring; The video image of micro-monitoring; Through video acquisition module, be input to computing machine, and on display, show.Meanwhile; Introduce two-dimentional stepping fine motion control system; Under Stepping Motor Control, drive two-dimentional stepping micropositioner through screw mechanism and do two-dimentional moving, drive scanner and sample two dimension in the XY plane simultaneously and move; Thereby under micro-monitoring, the constituency is carried out in interested sample surfaces zone, and cooperate the AFM scanner to realize the atomic force micro-imaging of sample surfaces arbitrary region.But the micro-monitoring type constituency atomic force micro imaging method and the device of the utility model; Overcome conventional AFM technology in the monitoring of sample scanning area and constituency, the adjusting of laser beam and microprobe with aim at, the micro-nano of sample and AFM microprobe randomness, blindness and the limitation that the aspect exists such as approach; Effectively improved the micro-imaging performance of AFM; And improved image scanning quality, scanning area, sweep limit and the operating efficiency etc. of AFM, but for the micro-monitoring constituency (in micron to the centimetre-sized visual field optional zone) of realizing sample, the atomic force micro-imaging of (micron order sweep limit and the splicing of adjacent scan image), high resolving power (nanometer scale) provides new technical method on a large scale.

Claims (2)

1. but micro-monitoring type constituency atomic force microscopic imaging device, but it is characterized in that comprising micro-monitoring type constituency AFM probe (1), prime amplifier (2), XY scanning and Z feedback control unit (3), XYZ high pressure amplifying (4), stepping control module (5), video acquisition module (6), computing machine and hardware interface (7); Prime amplifier (2) is connected with laser instrument (8) and position sensor (15); Be connected with Z feedback control unit (3) with XY scanning simultaneously; XY scanning and Z feedback control unit (3) and XYZ high pressure amplifying (4) and computing machine and hardware interface (7) are connected; Stepping control module (5) two ends are connected with stepper motor (28), computing machine and hardware interface (7) respectively, and video acquisition module (6) two ends are connected with CCD (22), computing machine and hardware interface (7) respectively.
2. but a kind of micro-monitoring type according to claim 1 constituency atomic force microscopic imaging device, but it is characterized in that described micro-monitoring type constituency AFM probe (1) comprises laser instrument (8), vertical adjusting screw rod (9), horizontal adjustment screw rod (10), semi-transparent semi-reflecting prism (11), microprobe (12), gib screw (13), mounting blocks (14), position sensor (15), sample (16), sample stage (17), scanner (18), microcobjective (19), extend neck (20), lens barrel (21), CCD (22), assembling stand (23), monitoring hole (24), backing plate (25), two-dimentional stepping micropositioner (26), screw mechanism (27), stepper motor (28), coarse adjustment knob (29), fine tuning knob (30), guide rail (31), track base (32), column (33), crossbeam (34), voussoir (35), reinforcement (36), base (37); Laser instrument (8) is regulated and is fixed on the mounting blocks (14) by vertical adjusting screw rod (9) and horizontal adjustment screw rod (10); Position sensor (15) is fixed on the mounting blocks (14) by gib screw (13); Mounting blocks (14) is fixed together with assembling stand (23); Semi-transparent semi-reflecting prism (11) is adhesively fixed and fixes on assembling stand (23) lower end; Assembling stand (23) central authorities have monitoring hole (24), and assembling stand (23) is installed on the guide rail (31), through regulating coarse adjustment knob (29) and fine tuning knob (30) vertical up-or-down movement; Microcobjective (19), extend neck (20), lens barrel (21), CCD (22) are connected in order, extend neck (20) is fixed on the crossbeam (34); Crossbeam (34) is fixed on the column (33) through voussoir (35), and column is installed on the base (37) through reinforcement (36), and sample (16) is installed on the sample stage (17) of scanner (18); Scanner (18) is installed on the two-dimentional stepping micropositioner (26) through backing plate (25), and two-dimentional stepping micropositioner (26) is installed on the base (37).
CN 201220275151 2012-06-12 2012-06-12 Micro-monitoring type optional area atomic force microimaging device Expired - Fee Related CN202631568U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102721833A (en) * 2012-06-12 2012-10-10 浙江大学 Atomic force microscope imaging method and device of microscopic monitoring type selectable region
CN108760485A (en) * 2018-03-30 2018-11-06 天津大学 A kind of equipment for the detection of micro-nano-scale substance physical characteristic

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102721833A (en) * 2012-06-12 2012-10-10 浙江大学 Atomic force microscope imaging method and device of microscopic monitoring type selectable region
CN108760485A (en) * 2018-03-30 2018-11-06 天津大学 A kind of equipment for the detection of micro-nano-scale substance physical characteristic

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Granted publication date: 20121226

Termination date: 20140612