A kind of heating combined equipment accurately controlled with direct temperature measurement
Technical field
The present invention relates to analog chips needed for a kind of research of chip cooling technology experiment more particularly to one kind can be accurate
The heating combined equipment of control and direct temperature measurement.
Background technique
With the fast development of microelectronic component, electronic device integrated level is quickly improved, high heat flux density cooling technology
It researches and develops extremely urgent.Experimental study is the important means of high heat flux density cooling technology research, however replacing as actual chips
Dai Pin, made of metal heat block heat flow density uniformity is not easy to control, and the wall surface temperature that radiates can not be measured directly.
Currently used made of metal heat block surface temperature measurement method is that the method estimation calculated by one-dimensional heat conduction inverting is surveyed
Surface temperature is tried, and existing document points out not to be one-dimensional heat conduction between measurement point and test surfaces, the heat dissipation capacity of side can not neglect
Slightly.Therefore, how reducing simulation heating combined equipment to greatest extent and replacing error brought by actual chips is to carry out high heat flux density
Cooling technology research and development experiment urgent problem.
Summary of the invention
The object of the present invention is to provide a kind of heating combined equipments accurately controlled with direct temperature measurement, realize the essence of heating hot-fluid
The really direct measurement of control and cooled surface temperature, to carry out cooling technology experimental study.
The purpose of the present invention is what is be achieved through the following technical solutions:
The heating combined equipment accurately controlled with direct temperature measurement of the invention, is mounted on inside cooling cavities, including a substrate,
Positioned at heat-producing machine bottom;One layer of metallic film is located at base upper portion;Two electrodes are located at film surface edge;Two are led
Line connects external power supply and electrode, and after power is fixed, metallic film generates heat, is connected on one side with substrate, and another side produces
Raw uniform heat;
The base material is zinc selenide, with a thickness of 0.75mm, long and wide respectively 4cm and 2cm;
The metallic film material is tin indium oxide, and with a thickness of 100nm, magnetron sputtering is in base upper portion;
The lead material is copper, and the conducting wire is connect with the electrode by epoxy spot welding.
As seen from the above technical solution provided by the invention, provided in an embodiment of the present invention to accurately control and directly
The accurate control of heating hot-fluid and the direct measurement of cooled surface temperature may be implemented in the heating combined equipment of thermometric, cold to carry out
But technology experiment is studied.
Detailed description of the invention
Fig. 1 is the heating combined equipment structural schematic diagram provided in an embodiment of the present invention accurately controlled with direct temperature measurement.
In figure:
1- zinc selenide (ZnSe) substrate, 2- tin indium oxide (ITO) material layer, 3-Cu/Ni/Au electrode, 4, fine copper lead.
Specific embodiment
Combined with specific embodiments below, the present invention is furture elucidated, it should be understood that the embodiment be merely to illustrate the present invention and
It is not used in and limits the scope of the invention, after the present invention has been read, those skilled in the art are to various shapes of equal value of the invention
It is as defined in the appended claims that the modification of formula falls within the application.The content being not described in detail in the embodiment of the present invention belongs to this
The prior art well known to skilled artisan.
The heating combined equipment accurately controlled with direct temperature measurement of the invention, preferable specific embodiment is:
It is mounted on inside cooling cavities, including a substrate, is located at heat-producing machine bottom;One layer of metallic film is located in substrate
Portion;Two electrodes are located at film surface edge;Two conducting wire connection external power supplies and electrode, after power is fixed, gold
Belong to film and generate heat, be connected on one side with substrate, another side generates uniform heat;
The base material is zinc selenide, with a thickness of 0.75mm, long and wide respectively 4cm and 2cm;
The metallic film material is tin indium oxide, and with a thickness of 100nm, magnetron sputtering is in base upper portion;
The lead material is copper, and the conducting wire is connect with the electrode by epoxy spot welding.
The substrate and metallic film are rectangle, and described two electrode arrangements are in rectangular metallic film both ends.
The substrate surface roughness is 40 μm.
The external power supply is 50V low-tension supply below, is not distinguished just when described two electrodes are connect with external power supply
Cathode.
The diameter of wire 0.1mm, length is adjustable.
The resistance value of the heating combined equipment be 45.6 Ω/□, and resistance value can be adjusted by the control of thickness of metal film, the system
The heat flow of thermal is adjusted by transformer.
The heating combined equipment accurately controlled with direct temperature measurement of the invention, may be implemented heating hot-fluid it is accurate control and by
The direct measurement of cooling surface temperature, to carry out cooling technology experimental study.
The invention has the advantages that (1) difference dut temperature range corresponds to different infrared wavelengths, selenium is designed based on optical principle
Change zinc substrate thickness and tin indium oxide thickness makes infrared light transmissivity reach 83%, realizes the direct standard on cooled surface
Really measurement;(2) the accurate control of heating combined equipment calorific value, and heat flow density uniformity can be realized by adjusting external transformer
It is high;(3) heating combined equipment as and connection structure are easily installed, replace and clean, and can require to set according to experiment condition
Count different shapes of substrates.
Specific embodiment:
As shown in Figure 1, structure includes zinc selenide substrate, indium tin oxide material layer, Cu/Ni/Au electrode layer and fine copper conducting wire.
The indium tin oxide material layer is located at zinc selenide base upper portion, and told Cu/Ni/Au electrode layer is set and table on indium tin oxide material layer
The position at face rectangle both ends.Preparation method includes the following steps:
1) for preferred dimension in 40mm × 20mm × 0.75mm zinc selenide substrate, carrying out surface treatment to upper surface makes its table
Surface roughness reaches 40 μm, after cleaning up using ultrasonic cleaner, examines surface;
2) zinc selenide substrate made from step 1) is packed into special coating system, vacuumizes, is then oxygenated to 1 × 10-2Pa;
3) fusing tin indium oxide material, vapor deposition to the zinc selenide substrate upper surface in step 2) are deflated in advance;
4) the heating combined equipment surface obtained by step 3) makes metal electrode layer, welding lead, for connecting transformer;
5) test institute's refrigerating/heating apparatus resistance value, measure the heating combined equipment resistance value be 45.6 Ω/□。
It is zinc selenide translucent base that this is described, which to accurately control with the substrate of the heating combined equipment of direct temperature measurement, in substrate
For tin indium oxide resistance elements, it is provided with metal electrode layer and fine copper lead, lead is used to connect heating combined equipment and outer
Portion's transformer.
It above are only the specific embodiment of the invention, but the design concept of the present invention is not limited to this, it is all to utilize this structure
Think of makes a non-material change to the present invention, and should belong to the behavior for invading the scope of protection of the invention.But it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention to made by above example it is any type of it is simple modification,
Equivalent variations and remodeling still fall within the protection scope of technical solution of the present invention.