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Manufacturing method of diode and automatic output device of diode

A technology of automatic conveying device and manufacturing method, which is used in transportation and packaging, semiconductor/solid-state device manufacturing, conveyor objects, etc., can solve the problem of long exposure of the die to the air, poor electrical properties of finished products, and many intermediate links, etc. problems, to achieve the effects of conventional electrical consistency and high temperature performance improvement, high temperature leakage current reduction, and pollution reduction

Inactive Publication Date: 2012-03-21
NANTONG HORNBY ELECTRONICS
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Problems solved by technology

[0002] The traditional pre-drying process is: put the stainless steel trays full of products on a transfer car first, and when the sliver is full of an oven (30 trays), then put them into an oven one by one. The temperature of the oven is 150°C. The time is 30 minutes, and then it is taken out one by one, loaded on a transfer car and sent to the gluing room. The disadvantage of this process is that it takes a long time to release the furnace and there are many intermediate links, resulting in the time for the cleaned die to be exposed to the air. Longer, contaminated by dust and water vapor in the air, the surface of the tube core will be contaminated, which will cause electrical defects in the finished product

Method used

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  • Manufacturing method of diode and automatic output device of diode
  • Manufacturing method of diode and automatic output device of diode
  • Manufacturing method of diode and automatic output device of diode

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Embodiment Construction

[0013] The present invention is specifically made of the following steps:

[0014] A. Loading: according to the routine, put the lead wires in the stone and wooden boat to the rear and install the lower layer of solder and die, and then install the upper layer of solder and press it tightly.

[0015] B. Welding: Send the stone wooden boat with the soldering piece into a furnace with a temperature above 300°C and the furnace cavity is filled with nitrogen, and bake at a high temperature in this way for more than 12 minutes to ensure that the peak temperature in the furnace is 360-370°C. After soldering, it comes out of the oven.

[0016] C. Pickling and combing the semi-finished diodes after welding as usual.

[0017] D. Pre-baking: Control the initial temperature in the furnace at 100°C, then raise the temperature until the peak temperature is 203°C-216°C to pre-bake the product; during pre-baking, the time in the furnace when the temperature is greater than 150°C is controll...

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Abstract

The invention discloses a manufacturing method of a diode and an automatic output device of the diode. The manufacturing method is mainly formed by nine steps, namely filling, welding, scouring, slivering, pre-drying, gluing, glue curing, compression molding and post-curing under certain conditions. The automatic output device used for achieving the process comprises a machine frame and is characterized in that delivery guide rails are arranged on the machine frame, a plurality of fixed shaft arranged at equal interval are arranged between the delivery guide rails, and an idler wheel or a bearing is sleeved on the shaft. A cooling frame parallel to the delivery guide rails is arranged right above delivery guide rails, and a plurality of cooling fans which are downwards to align to the delivery guide rails are installed on the cooling frame. Users do not need to wait when using the automatic output device which can directly enter a furnace, so that exposed time in the air is shortened, and pollution of foreign ion is reduced. Manual transit shipment is not needed when the automatic output device comes out of the furnace, so that personal factors are reduced, and labor time is saved.

Description

technical field [0001] The invention relates to a manufacturing method of a diode, specifically, a manufacturing method consisting of nine steps of filling, welding, pickling, combing, pre-baking, gluing, glue curing, molding and post-curing. In order to realize the above method, the present invention also relates to an automatic conveying device. Background technique [0002] The traditional pre-drying process is: put the stainless steel trays full of products on a transfer car first, and when the sliver is full of an oven (30 trays), then put them into an oven one by one. The temperature of the oven is 150°C. The time is 30 minutes, and then it is taken out one by one, loaded on a transfer car and sent to the gluing room. The disadvantage of this process is that it takes a long time to release the furnace and there are many intermediate links, resulting in the time for the cleaned die to be exposed to the air. Longer, it is polluted by dust and water vapor in the air, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/329H01L21/677
Inventor 杨秋华徐柏林陆正海苏国军
Owner NANTONG HORNBY ELECTRONICS
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