LED package component, substrate and wafer level packaging method thereof
A technology of wafer-level packaging and LED packaging, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems of wafer-level packaging that need to be studied, and achieve the effects of reducing packaging costs, simple operation process, and good heat dissipation performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0033] Embodiment 1 (LED package device embodiment)
[0034] See figure 1 , A schematic diagram of the structure of the LED package device provided by the present invention Figure . The LED package device provided by the present invention includes a substrate 1, an LED chip 2, a fluorescent layer 3, a base lens 4 and a secondary lens 5. Among them, the substrate 1 is assembled by the first substrate 11 and the second substrate 12. The first substrate 11 is provided with a penetrating recess 112 (or called a recess). The sidewall of the recess 112 has a certain slope and is inclined. The bottom opening of the recess 112 is smaller than the top opening of the recess. The longitudinal section of the hole 112 is trapezoidal. The size of the recessed hole 112 is determined according to the size of the LED chip 2. The larger the width of the recessed hole 112 is, the weaker the side of the light blocking effect and the higher the light extraction efficiency. However, the width of ...
Example Embodiment
[0040] Embodiment 2 (substrate embodiment)
[0041] See Image 6 ,this invention A substrate 1 for wafer-level packaging of LED chips is provided. The substrate 1 is assembled by the first substrate 11 and the second substrate 12.
[0042] The first substrate 11 is provided with a through hole 112 (or called a pit). The side wall 111 of the hole 112 has a certain slope and is inclined. The bottom opening of the hole 112 is smaller than the top opening of the hole 112 , The longitudinal section of the recessed hole 112 is trapezoidal. The size of the recessed hole 112 is determined according to the size of the LED chip. The larger the width of the recessed hole 112 is, the weaker the side of the light blocking effect, and the higher the light extraction efficiency. However, the width of the concave hole should also be controlled within a certain range to ensure that the substrate has a certain mechanical strength. Preferably, in the present invention, the width of the top openi...
Example Embodiment
[0046] Embodiment 3 (embodiment of wafer-level packaging method for LED package device)
[0047] The LED package device of Example 1 can be prepared by the following method, and the main steps are as follows:
[0048] 1) Production of the first substrate 11: see figure 2 ~3, prepare a silicon substrate 11, form a through recess 112 on the silicon substrate by chemical etching, and the sidewall 111 of the recess 112 is inclined, and the width of the bottom opening of the recess 112 is smaller than the width of the top opening of the recess 112; The depth of the recessed hole 112 is about 200 μm higher than the thickness of the LED chip (for example, 150-250 μm), so as to ensure a good subsequent phosphor coating. If the recessed hole 112 is too deep, the phosphor coating layer will increase in thickness, which is not conducive to light emission and heat dissipation; if the recessed hole is too shallow, the phosphor concentration required to achieve white light will increase, which ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap