Negative electrode-abutted bidirectional rectification diode and manufacturing process thereof
A rectifier diode and bidirectional rectifier technology, which is applied in semiconductor/solid-state device manufacturing, electrical components, electrical solid-state devices, etc., can solve the problems of high production cost, large space, complex circuit design, etc., and achieves strong functionality and structural settings. reasonable effect
Pending Publication Date: 2018-08-28
日照鲁光电子科技有限公司
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Problems solved by technology
[0006] 1. The existing half-wave rectifier bridge is a three-terminal device, which takes up a lot of space in the circuit and high production cost;
[0007] 2. Using two rectifier diodes requires complex circuit design and two patch installations, which takes up a lot of space and high production costs
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] see Figure 1-3 , the present invention provides a technical solution: a negative-connected bidirectional rectifier diode, including a shell 1, a soldering piece 2, a lead 3 and a diode chip 4, the inside of the shell 1 is packaged with a soldering piece 2 and a diode chip 4, and the left and right sides Lead wires 3 are provided on the outside of the soldering piece 2 on the side, and the lead wires 3 are set through the outer surface of the package 1,...
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The invention discloses a negative electrode-abutted bidirectional rectification diode. The negative electrode-abutted bidirectional rectification diode comprises a pipe shell, welding sheets, leads and diode chips, wherein the welding sheets and the diode chips are packaged in the pipe shell, and the leads are arranged at outer sides of the welding sheets at a left side and a right side. The invention also discloses a manufacturing process of the negative electrode-abutted bidirectional rectification diode. The processing flow of the product comprises the following steps of 1, diverting a first layer of diode chips; 2, converting directions of the diverted diode chips; 3, filling the diverted diode chips with bonding pads in advance; 4, filling welding sheets with bonding pads in advance;and 5, diverting a second layer of diode chips. The negative electrode-abutted bidirectional rectification diode has the following advantages that two negative electrode-abutted bidirectional rectification diodes are packaged in a pipe shell, the functions of bidirectional rectification and protection are achieved, two pins are arranged, lead-flatten SMA appearance package is employed, the two rectification diode chips are diverted, negative electrodes are abutted, a lamination assembly welding process is performed, and a negative electrode-abutted bidirectional rectification diode productionprocess is performed.
Description
technical field [0001] The invention relates to the technical field of diodes and their manufacturing techniques, in particular to a cathode-connected bidirectional rectifier diode and its manufacturing techniques. Background technique [0002] Bidirectional rectifier diodes are used in parallel with other devices in the line to prevent lightning from burning out the product and achieve protection. [0003] Existing scheme 1, half-wave rectifier bridge: the half-wave rectifier bridge composed of two rectifier diode chips is packaged in a shell, and has three pins, common cathode or common anode. [0004] In the second existing scheme, two rectifier diodes are installed in the circuit board, and the common cathode or common anode connection of the two diodes is realized through circuit design. [0005] Existing defects: [0006] 1. The existing half-wave rectifier bridge is a three-terminal device, which takes up a lot of space in the circuit and high production cost; [0...
Claims
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IPC IPC(8): H01L23/31H01L23/49H01L21/50
CPCH01L21/50H01L23/31H01L23/49H01L2224/33
Inventor 朱礼贵候玉军
Owner 日照鲁光电子科技有限公司