Manufacturing process of crystal diode

A manufacturing process and diode technology, which is applied in semiconductor/solid-state device manufacturing, electrical components, circuits, etc., can solve the problems that double-layer or multi-layer circuit board technology cannot make holes, transportation and storage are inconvenient, and consume a lot of manpower and material resources. It achieves the effects of convenient classification and storage, good product quality and reduced material loss

Active Publication Date: 2015-11-25
SICHUAN BLUE COLOR ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, electronic products such as telephones, televisions, fax machines, computers and their peripheral products all over the world are researched and developed with the aim of clearing and shortening the package. The circuit board technology mostly uses double-layer or multi-layer circuit board technology, but double-layer or Multi-layer circuit board technology cannot punch holes like traditional single-layer circuit boards, so the diode is required to be as small as possible
[0003] As the size of the diode gradually decreases, its processing difficulty is also increasing, which greatly increases its production cost, and in the production process, due to its small size, it is very difficult to transfer between different sections. Classification and assembly of each diode component requires a lot of manpower and material resources
For the finished product, its volume is small, and it is inconvenient to transport and store

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A manufacturing process of a crystal diode, comprising the following steps:

[0025] S1. Wafer cutting: cut the wafer raw material disc loaded with wafers with special cutting equipment, so that each wafer is square and has a diameter of 0.21 mm;

[0026] S2. Chip assembly: place the chip lead on the lead track, grab each chip on the chip raw material tray by the robot and place it in the chip lead, and divide the chip lead into 360 product chip lead segments through a segmenting machine , and installed in the lead box in turn;

[0027] S3. Wire bonding: Move the lead box with the chip lead section to the workbench of the wire bonding machine, adjust the power of the wire bonding machine to 30mW, the pressure to 250mN, and the temperature to 240°C, and wire each chip in the lead box The segment is placed on a wire bonding machine for wire bonding to obtain a chip with pins;

[0028] S4, injection molding: encapsulate the wafer with pins after the wire bonding in step ...

Embodiment 2

[0036] A manufacturing process of a crystal diode, comprising the following steps:

[0037] S1. Wafer cutting: cut the wafer raw material tray loaded with wafers by special cutting equipment, so that each wafer is square and has a diameter of 0.6mm;

[0038] S2. Chip assembly: place the chip lead on the lead track, grab each chip on the chip raw material tray by the robot and place it in the chip lead, and divide the chip lead into 288 chip lead segments of products through a segmenting machine , and installed in the lead box in turn;

[0039] S3. Wire bonding: Move the lead box containing the chip lead section to the workbench of the wire bonding machine, adjust the power of the wire bonding machine to 40mW, the pressure to 300mN, and the temperature to 280°C, and wire each chip in the lead box The segment is placed on a wire bonding machine for wire bonding to obtain a chip with pins;

[0040] S4, injection molding: encapsulate the wafer with pins after the wire bonding in...

Embodiment 3

[0048] A manufacturing process of a crystal diode, comprising the following steps:

[0049] S1. Wafer cutting: cut the wafer raw material disc loaded with wafers by special cutting equipment, so that each wafer is square and has a diameter of 1.0mm;

[0050] S2. Chip assembly: place the chip lead on the lead track, grab each chip on the wafer raw material tray by the robot and place it in the chip lead, and divide the chip lead into 216 chip lead segments of products through a segmenting machine , and installed in the lead box in turn;

[0051] S3. Wire bonding: Move the lead box containing the chip lead section to the workbench of the wire bonding machine, adjust the power of the wire bonding machine to 50mW, the pressure to 350mN, and the temperature to 320°C, and wire each chip in the lead box The segment is placed on a wire bonding machine for wire bonding to obtain a chip with pins;

[0052] S4, injection molding: encapsulate the wafer with pins after the wire bonding i...

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PUM

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Abstract

The invention relates to a manufacturing process of a crystal diode. The manufacturing process comprises the following steps: (S1) wafer cutting; (S2) wafer assembly, namely putting a wafer lead on a lead track, sequentially grabbing each wafer to put into the wafer lead, and cutting the wafer lead into wafer lead segments of 216-360 products through a segmentation machine, and sequentially putting the wafer lead segments into the lead box; (S3) wire soldering, namely transferring the lead box with the wafer lead segments into a work bench of a wire soldering machine, adjusting the power of the wire soldering machine to be 30-50mW, the pressure to be 250-350mN and the temperature to be 240-320 DEG C, putting each wafer lead segment in the lead box on the wire soldering machine for wire soldering, so as to obtain the wafers with pins; (S4) injection molding; (S5) electroplating; (S6) separating; (S7) testing; and (S8) band loading, namely loading the tested and qualified crystal diodes to a stripped carrier band with a band loading mechanism, and carrying out plastic packaging to obtain the product. The manufacturing process has the advantages that transportation is facilitated in the manufacturing process; the product quality is improved; and classified transportation or storage is facilitated.

Description

technical field [0001] The invention relates to the technical field of diode production, in particular to a manufacturing process of a crystal diode. Background technique [0002] In the electronics industry, diodes have become the basic components of various electronic products. Traditional diodes have a pin at each end. When using it, you need to insert the pins of the diode into the holes on the circuit board so that the diode can be fixed in the circuit. board. However, at present, electronic products such as telephones, televisions, fax machines, computers and their peripheral products all over the world are researched and developed with the goal of clearing and shortening the package. The circuit board technology mostly uses double-layer or multi-layer circuit board technology, but double-layer or Multi-layer circuit board technology cannot punch holes like traditional single-layer circuit boards, so the diode is required to be as small as possible. [0003] As the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/329H01L21/60
Inventor 黄职彬
Owner SICHUAN BLUE COLOR ELECTRONICS TECH
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