Unlock instant, AI-driven research and patent intelligence for your innovation.

Power module packaging structure

A technology of encapsulation structure and power module, which is applied in the directions of support structure installation, closed case, electrical equipment structural parts, etc., can solve the problems of damage to the built-in parts of the module, easy deformation of the body, reliability problems, etc., so as to reduce the impact and improve the The effect of fixing support and reducing deformation

Active Publication Date: 2020-08-28
DELTA ELECTRONICS INC
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the elastic modulus of the body material is too large, or the manufacturing process has a small tolerance, it is easy to generate excessive stress due to the amplification effect, resulting in damage to the module itself or built-in parts
Conversely, when the elastic modulus of the body material is too small, the body is easily deformed, and the heat dissipation paste cannot be contacted in the area with large deformation, resulting in poor heat dissipation, and there are also reliability problems in the state of environmental vibration and external shock

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power module packaging structure
  • Power module packaging structure
  • Power module packaging structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] see figure 1 , 2 , according to an embodiment of the present invention, a power module packaging structure 10 is provided. figure 1 It is a top view of the power module packaging structure 10 . figure 2 It is a perspective view of the power module packaging structure 10 .

[0071] Such as figure 1 , 2As shown, the power module packaging structure 10 includes a body 12 , a substrate 14 , a first protruding structure 16 , a second protruding structure 18 , a third protruding structure 20 , a fourth protruding structure 22 , a first elastic piece 24 , and a second elastic piece 26 . The body 12 includes a first side wall 28a, a second side wall 28b, a third side wall 28c, and a fourth side wall 28d. The first side wall 28 a , the second side wall 28 b , the third side wall 28 c , and the fourth side wall 28 d surround the body 12 and roughly define the outer range and inner space of the body 12 . The first side wall 28a is connected to the second side wall 28b and t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a power module packaging structure, which comprises: a body with a side wall; a first protruding structure protruding outwards from one end point of the side wall of the body; asecond protruding structure protruding outwards from the other end point of the side wall of the body and arranged opposite to the first protruding structure; and an elastic sheet, wherein the two ends of the elastic sheet are embedded into the first protruding structure and the second protruding structure respectively, stress is transmitted to the first protruding structure and the second protruding structure through the elastic sheet, and the equivalent rigidity of the elastic sheet is different from that of the body, so that the overall stress of the packaging structure is uniform.

Description

technical field [0001] The present invention relates to a package structure, in particular to a power module package structure with good stress transmission effect when locked. Background technique [0002] Excessive heat energy generated during the operation of the current Integrated Power Module (IPM) needs to be locked on the heat sink to assist in heat dissipation, and thermal paste is filled between the module and the heat sink to improve heat dissipation efficiency. [0003] When the modulus of elasticity of the body material is too large, or the manufacturing process has a small tolerance, it is easy to generate excessive stress due to the amplification effect, resulting in damage to the module itself or built-in parts. Conversely, when the elastic modulus of the body material is too small, the body is easily deformed, and the heat dissipation paste cannot be contacted in the deformed area, resulting in poor heat dissipation, and there are also reliability problems in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/31H01L23/367
CPCH01L23/31H01L23/3672H05K7/209H01L23/04H01L23/053H05K7/1427H05K5/0013H05K5/03H05K5/0221
Inventor 陈劭诠詹弘彦程传嘉廖学国张凯迪
Owner DELTA ELECTRONICS INC