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What is Cu clip package? 1 copper wire

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Power chips are linked to exterior circuits with product packaging, and their efficiency depends on the support of the packaging. In high-power scenarios, power chips are typically packaged as power modules. Chip affiliation refers to the electric connection on the top surface of the chip, which is normally aluminum bonding cord in conventional components. ^
Conventional power module package cross-section

At present, business silicon carbide power components still mostly utilize the product packaging innovation of this wire-bonded standard silicon IGBT component. They deal with problems such as large high-frequency parasitical specifications, insufficient warm dissipation capacity, low-temperature resistance, and inadequate insulation toughness, which restrict making use of silicon carbide semiconductors. The display of superb efficiency. In order to fix these troubles and totally manipulate the massive prospective benefits of silicon carbide chips, many brand-new packaging technologies and solutions for silicon carbide power modules have arised recently.

Silicon carbide power component bonding approach


(Figure (a) Wire bonding and (b) Cu Clip power module structure diagram (left) copper wire and (right) copper strip connection process)

Bonding materials have created from gold cord bonding in 2001 to light weight aluminum cable (tape) bonding in 2006, copper wire bonding in 2011, and Cu Clip bonding in 2016. Low-power devices have established from gold wires to copper cords, and the driving pressure is expense decrease; high-power gadgets have actually created from aluminum wires (strips) to Cu Clips, and the driving force is to improve product performance. The higher the power, the greater the needs.

Cu Clip is copper strip, copper sheet. Clip Bond, or strip bonding, is a product packaging process that utilizes a solid copper bridge soldered to solder to attach chips and pins. Compared with standard bonding product packaging methods, Cu Clip modern technology has the adhering to advantages:

1. The connection in between the chip and the pins is made from copper sheets, which, to a particular extent, changes the typical wire bonding approach between the chip and the pins. Therefore, a special plan resistance value, higher existing circulation, and better thermal conductivity can be gotten.

2. The lead pin welding location does not require to be silver-plated, which can totally save the expense of silver plating and inadequate silver plating.

3. The item appearance is totally constant with normal items and is mostly utilized in web servers, portable computer systems, batteries/drives, graphics cards, motors, power materials, and various other areas.

Cu Clip has two bonding methods.

All copper sheet bonding method

Both eviction pad and the Source pad are clip-based. This bonding technique is extra pricey and intricate, yet it can accomplish much better Rdson and much better thermal impacts.


( copper strip)

Copper sheet plus cable bonding approach

The source pad uses a Clip approach, and the Gate makes use of a Wire approach. This bonding approach is a little more affordable than the all-copper bonding technique, conserving wafer area (applicable to really tiny gateway areas). The procedure is simpler than the all-copper bonding method and can acquire far better Rdson and far better thermal impact.

Distributor of Copper Strip

TRUNNANO is a supplier of surfactant with over 12 years experience in nano-building energy conservation and nanotechnology development. It accepts payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea. If you are finding 1 copper wire, please feel free to contact us and send an inquiry.

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