Eutectic Furnace
A eutectic furnace and furnace cavity technology, applied in electric heating devices, auxiliary devices, metal processing and other directions, can solve the problems of eutectic welding not being too high, material oxidation failure, and difficulty in mass production.
Inactive Publication Date: 2015-09-16
SHENZHEN WISDOW REACHES IND
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Problems solved by technology
But this ordinary oven has two fatal shortcomings. First, due to the structure of the oven, the temperature difference in different positions in the oven is large, and the temperature of eutectic welding should not be too high, otherwise the material will quickly oxidize and fail.
Therefore, the effect of eutectic welding varies greatly, and it is difficult to achieve mass production
[0003] Second, the temperature of the furnace body should be raised quickly, but the thermal shock should not be too strong, otherwise there will be fatal quality defects such as explosion and drift in the eutectic process, which will make the eutectic lose its functional use
Method used
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with the accompanying drawings and examples.
[0013] Such as figure 1 , figure 2 ,and image 3 As shown, a eutectic furnace includes a control panel (1) with a control circuit and a program, a furnace body (3), a furnace chamber (2), and a heater for heating the furnace chamber, and a furnace for sealing the furnace The furnace door (7) and the supporting foot cup (4) of the chamber, wherein three thick metal partitions (21) are arranged in the furnace chamber to divide the furnace chamber into two independent small spaces, Each independent small space is used to place a material box that needs to be processed. Due to the small volume of the independent small space, the temperature difference between the various places in the space is also small, which is conducive to keeping the temperature of the material (the LED lamp that needs to be heated) constant.
[0014] A removable material box (6) is ...
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Abstract
The invention relates to an eutectic furnace which comprises a control panel, a furnace body, a furnace chamber, a heater and a furnace door. The control panel is used for controlling the circuit and the program; the heater is used for heating the furnace chamber; the furnace door is used for sealing the furnace chamber; and the furnace chamber is internally provided at least three thick metal division plates which are used for dividing the furnace chamber into at least two small spaces which are independent of each other, wherein at least one storage box needing to be treated is put in each small space. Because each small space has a small volume, all parts of the space has small temperature difference, and temperature of the material (the LED lamp needing to be heated) can be kept constant.
Description
technical field [0001] The invention relates to an electronic product processing device, in particular to a eutectic heat treatment device. Background technique [0002] In the processing and manufacturing process of semiconductors, such as the production of light-emitting diodes, eutectic and wire bonding operations are two important steps, which are related to the quality of products. The existing eutectic methods are: screening tin alloy solder with appropriate ratio; preheating the substrate or base; solder coating, coating the tin alloy solder on the substrate support to fix the position of the LED chip, and through the auxiliary Heating the flux to melt the solder and fill it on the eutectic position of the bracket LED; vapor-deposit a protective layer with a thickness of more than 2 μm on the substrate, and the protective layer is silver, gold or other alloys; solder the chip at the eutectic temperature To the substrate; under the conditions of direct heating, thermo...
Claims
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IPC IPC(8): B23K3/00B23K3/047B23K3/08
Inventor 罗会才王鸿
Owner SHENZHEN WISDOW REACHES IND