CN219582612U - Clamping tweezers for transferring nano material substrate - Google Patents

Abstract

The utility model discloses clamping tweezers for transferring a nano material substrate, which comprise a holding handle, two clamping arms and two clamping heads; one end of each clamping arm is fixed on the corresponding holding handle at a preset included angle, and the other end extends to a far distance; the two clamping heads are respectively arranged on the tail parts of the two clamping arms far away from one end of the holding handle, and each clamping head is provided with a vertical groove and a horizontal groove which are communicated with each other and used for clamping a sample on the clamping inner side wall. Through the design of the clamping head structure, the sample can be clamped and fixed in the horizontal direction and the vertical direction, and the problems of unstable clamping, substrate scratch and edge collapse of common commercial tweezers are solved.

Description

Clamping tweezers for transferring nano material substrate

Technical Field

The utility model relates to the technical field of nano material clamping, in particular to clamping tweezers for transferring a nano material substrate.

Background

The graphene nanoribbon GNR can be regarded as graphene with a certain width and edge type in an atomic level, and has adjustable band gap besides inheriting various excellent performances of common graphene, so that the graphene nanoribbon GNR is widely applied to high-end advanced fields such as FETs, sensing and spin electronic devices.

The growth method of GNR is similar to the CVD method for preparing graphene, and GNR is prepared by a bottom-up synthesis method and also needs to be prepared by growth on a specific metal substrate, such as Au (111), ag (111), cu (111), etc., but the graphene nanoribbon and graphene growing on the metal substrate cannot be directly used, and need to be transferred to a target substrate, typically a non-metal substrate, for subsequent application.

Throughout the whole growth and later transfer processes of graphene nanoribbons and graphene, tweezers are used as an important and indispensable tool for clamping samples and substrates, and are used more frequently when 0.25-4cm < 2 > small-size substrates are transferred, so that the samples are clamped, the substrates are stripped, the substrates are clamped, bonding is assisted, and the like.

At present, in both the patent documents (a wafer tweezer, CN 207807489U; a tweezer, CN216707197U; a tweezer for clamping wafers, CN 210414192U) and the actual production, although the wafer tweezer is specially used in the semiconductor industry, the clamping head of the wafer tweezer is usually large in size and is only suitable for clamping wafers of 2-8 inches, when the wafer tweezer is used for small-size substrates, the situation that the clamping is unstable or the effective area of the substrates is low can occur, while the tweezer on the market is usually pointed, scratches and edges are generated on the substrates, the clamping head is thicker and flatter, so that the clamping and clamping slip are not easy, the materials are metal, common plastics and ceramics, wherein the metal cannot resist acid and alkali salt corrosion, impurities are introduced to pollute the samples, the common plastics swell in part of organic solvents, and the ceramics are easy to scratch and rigid bump the substrates due to the hardness and rigidity.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide clamping tweezers for transferring a nano material substrate, which solve the problems of unstable clamping, substrate scratching and edge breakage of the existing tweezers.

In view of this object, an embodiment of the present utility model provides a holding forceps for transferring a nanomaterial substrate, including a grip handle, two holding arms, and two holding heads; one end of each clamping arm is fixed on the corresponding holding handle at a preset included angle, and the other end extends to a far distance; the two clamping heads are respectively arranged on the tail parts of the two clamping arms far away from one end of the holding handle, and each clamping head is provided with a vertical groove and a horizontal groove which are communicated with each other and used for clamping a sample on the clamping inner side wall.

Further, the clamping head comprises a clamping outer side wall and a clamping inner side wall, the clamping inner side wall and the inner side surface of the clamping arm are mutually leveled, the upper end part of the clamping outer side wall and the outer side surface of the clamping arm are leveled, and the lower end part of the clamping outer side wall is inclined inwards and forms an acute angle with the lower end part of the clamping inner side wall.

Further, the vertical groove is arranged in a three-face opening manner, and the upper end opening of the vertical groove extends to the bottom of the horizontal groove.

Further, the edge of the groove bottom facing the inner side is arc-shaped and forms a slope with a preset distance from the lower end part of the clamping inner side wall.

Further, the width of the groove bottom of the horizontal groove is smaller than the width of the groove inner side wall of the horizontal groove.

Further, the inner side area of the clamping head is larger than the inner side area of the clamping arm.

Further, the gripping head extends vertically downward along the gripping arm.

Further, the holding forceps are made of polytetrafluoroethylene.

Further, the outline of the holding handle is fit with the curve of the palm of the human body, and the weight of the holding handle at the end far away from the clamping arm is larger than that at the end close to the clamping arm.

Further, the holding handle, the holding arm and the holding head are integrally formed.

The utility model has the beneficial effects that: the embodiment of the utility model provides clamping tweezers for transferring a nano material substrate, which comprise a holding handle, two clamping arms and two clamping heads; one end of each clamping arm is fixed on the corresponding holding handle at a preset included angle, and the other end extends to a far distance; the two clamping heads are respectively arranged on the tail parts of the two clamping arms far away from one end of the holding handle, and each clamping head is provided with a vertical groove and a horizontal groove which are communicated with each other and used for clamping a sample on the clamping inner side wall. Through the design of the clamping head structure, the sample can be clamped and fixed in the horizontal direction and the vertical direction, and the problems of unstable clamping, substrate scratch and edge collapse of common commercial tweezers are solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a clamping tweezer for transferring a nanomaterial substrate according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a gripper head for gripping tweezers for transferring a nanomaterial substrate according to an embodiment of the present utility model.

In the figure: 1. a grip handle; 2. a clamping arm; 3. a clamping head; 30. clamping the inner side wall; 31. a vertical groove; 32. a horizontal groove; 320. a groove bottom; 321. a ramp; 322. the inner side wall of the groove; 33. clamping the outer side wall.

Detailed Description

The embodiment of the utility model provides clamping tweezers for transferring a nano material substrate, which solve the problems of unstable clamping, substrate scratching and edge breakage of the existing tweezers.

In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Examples:

aiming at the problems existing in the prior art, the utility model designs a simple, efficient and corrosion-resistant clamping tweezers for transferring a nanomaterial substrate, wherein the nanomaterial mainly comprises graphene nanoribbons, graphene and other nanomaterials.

Fig. 1 is a schematic view showing the overall structure of a holding forceps for transferring a nanomaterial substrate, as shown in fig. 1-2, and the holding forceps for transferring a nanomaterial substrate comprises a holding handle 1, two holding arms 2 and two holding heads 3; one ends of the two clamping arms 2 are fixed on the holding handle 1 at a preset included angle, and the other ends extend to a far distance; the two clamping heads 3 are respectively arranged on the tail parts of the two clamping arms 2 far away from one end of the holding handle 1, and a vertical groove 31 and a horizontal groove 32 which are communicated with each other and used for clamping a sample are arranged on the clamping inner side wall 30 of each clamping head 3.

Specifically, two the arm 2 each other becomes an contained angle, and this arm 2 has suitable rigidity and elasticity in order to realize light pressing and locking centre gripping sample to through the design of the vertical groove 31 of the intercommunication of the clamp head 3 and horizontal groove 32 each other, make the sample all can be fixed at level and vertical direction centre gripping, solved ordinary commercially available tweezers and pressed from both sides and got unstable, problem that the basement fish tail and burst limit.

Further, the clamping head 3 includes a clamping outer sidewall 33 and a clamping inner sidewall 30, the inner side surfaces of the clamping inner sidewall 30 and the clamping arm 2 are mutually leveled, the upper end portion of the clamping outer sidewall 33 is leveled with the outer side surface of the clamping arm 2, and the lower end portion of the clamping outer sidewall 33 is inclined inwards and forms an acute angle with the lower end portion of the clamping inner sidewall 30.

Specifically, in order to facilitate the temporary placement of the sample pickup, the lower end portion of the outer side wall 33 of the clamping head 3 is inclined inward and forms an acute angle with the lower end portion of the inner side wall 30, and the lower end portion of the outer side wall 33 is inclined inward to form a slope when viewed from the outside, so that the sample pickup is facilitated.

Further, the vertical groove 31 is provided with three openings, and the upper opening of the vertical groove 31 extends to the bottom 320 of the horizontal groove 32.

Specifically, the vertical grooves 31 are open on three sides and communicate with the bottoms 320 of the horizontal grooves 32, so that the sample is easily held.

Further, the inward edge of the groove bottom 320 is arc-shaped and forms a slope 321 at a predetermined distance from the lower end of the clamping inner sidewall 30.

Specifically, by setting the slope 321, the sample is convenient to slide down into the horizontal fixing groove of the device, and the slope 321 can be set at one third of the position of the clamping inner side wall 30 away from the bottom end of the clamping inner side wall, or at other preset distances.

Further, as shown in fig. 2, the width of the groove bottom 320 of the horizontal groove 32 is smaller than the width of the groove inner side wall 322 of the horizontal groove.

Specifically, to facilitate sample clamping and blanking, the width of the groove bottom 320 of the horizontal groove 32 is designed to be the width of the small groove inner side wall 322.

Further, the inner area of the clamping head 3 is larger than the inner area of the clamping arm 2.

In particular, the inner area of the clamping head 3 is larger than the inner area of the clamping arm 2 in order to achieve a better clamping of the sample.

Further, the gripping head 3 extends vertically downwards along the gripping arm 2.

In particular, depending on the clamping position of the sample, the clamping head 3 may extend vertically downwards along the clamping arm 2, or it may be designed that the clamping head 3 extends vertically upwards along the clamping arm 2 when the sample is located above.

Further, the holding forceps are made of polytetrafluoroethylene.

Specifically, the tweezers are made of polytetrafluoroethylene, can resist acid and alkali corrosion, is not easy to attach to metal pollutants, has good temperature resistance, has hardness lower than that of aluminum oxide, silicon dioxide and a silicon substrate, and avoids the occurrence of surface scratches.

Further, the outline of the grip handle 1 is fitted with the curve of the palm of the human body, and the weight of the grip handle 1 at the end far away from the clamping arm 2 is greater than that at the end near the clamping arm 2.

Specifically, the outline of the handle 1 is attached to the curve of the palm of the human body, and meanwhile, part of the counterweight is added, and the gravity center moves backwards, so that comfortable, simple, convenient and labor-saving operation feel is provided;

further, the grip handle 1, the clamping arm 2 and the clamping head 3 are integrally formed.

In particular, the tweezers are integrally formed, or the components can be fixedly connected with each other.

In summary, the embodiment of the utility model provides a clamping forceps for transferring a nanomaterial substrate, which comprises a handle, two clamping arms and two clamping heads; one end of each clamping arm is fixed on the corresponding holding handle at a preset included angle, and the other end extends to a far distance; the two clamping heads are respectively arranged on the tail parts of the two clamping arms far away from one end of the holding handle, and each clamping head is provided with a vertical groove and a horizontal groove which are communicated with each other and used for clamping a sample on the clamping inner side wall. Through the design of the clamping head structure, the sample can be clamped and fixed in the horizontal direction and the vertical direction, and the problems of unstable clamping, substrate scratch and edge collapse of common commercial tweezers are solved.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The clamping tweezers for transferring the nano material substrate are characterized by comprising a holding handle (1), two clamping arms (2) and two clamping heads (3); one end of each clamping arm (2) is fixed on the corresponding holding handle (1) at a preset included angle, and the other end extends to a far distance; the two clamping heads (3) are respectively arranged on the tail parts of the two clamping arms (2) which are far away from one end of the holding handle (1), and vertical grooves (31) and horizontal grooves (32) which are communicated with each other and used for clamping samples are formed in the clamping inner side walls (30) of each clamping head (3).

2. Clamping tweezers for transfer of nanomaterial substrates according to claim 1, characterized in that the clamping head (3) comprises a clamping outer side wall (33) and a clamping inner side wall (30), the inner side surfaces of the clamping inner side wall (30) and the clamping arm (2) are mutually leveled, the upper end of the clamping outer side wall (33) is leveled with the outer side surface of the clamping arm (2), the lower end of the clamping outer side wall (33) is inclined inwards and forms an acute angle with the lower end of the clamping inner side wall (30).

3. Clamping tweezers for transfer of nanomaterial substrates according to claim 1, characterized in that the vertical groove (31) is provided with three-sided openings, the upper end opening of the vertical groove (31) extending to the bottom (320) of the horizontal groove (32).

4. A holding forceps for transferring a nanomaterial substrate according to claim 3, characterized in that the edge of the groove bottom (320) facing inwards is circular arc-shaped and forms a slope (321) at a predetermined distance from the lower end of the holding inner side wall (30).

5. Clamping tweezers for transfer of nanomaterials substrates according to claim 4, wherein the width of the groove bottom (320) of the horizontal groove (32) is smaller than the width of the groove inner side walls (322) of the horizontal groove.

6. Clamping tweezers for transfer of nanomaterial substrates according to claim 1, characterized in that the inner area of the clamping head (3) is larger than the inner area of the clamping arm (2).

7. Clamping tweezers for transfer of nanomaterial substrates according to claim 1, characterized in that the clamping head (3) extends vertically downwards along the clamping arm (2).

8. The holding forceps for transferring a nanomaterial substrate of claim 1, wherein the material of the holding forceps is polytetrafluoroethylene.

9. Clamping tweezers for transfer of nanomaterial substrates according to claim 1, characterized in that the profile of the grip handle (1) follows the curve of the human palm, the grip handle (1) having a greater weight at the end remote from the clamping arm (2) than at the end close to the clamping arm (2).

10. Clamping tweezers for transfer of nanomaterial substrates according to claim 1, characterized in that the grip handle (1), the clamping arm (2) and the clamping head (3) are integrally formed.