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Imprinting mold and method for making lens array

a technology of imprinting molds and lens arrays, applied in the field of imprinting, can solve the problems of high cost and time-consuming in the manufacture and achieve the effect of reducing the cost of large-scale imprinting molds

Inactive Publication Date: 2010-10-28
HON HAI PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the large size imprinting mold may be very expensive to make due to the need for high precision.
Furthermore, it may be unduly time-consuming to manufacture the large size imprinting mold.

Method used

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  • Imprinting mold and method for making lens array
  • Imprinting mold and method for making lens array
  • Imprinting mold and method for making lens array

Examples

Experimental program
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Embodiment Construction

[0017]Various embodiments will now be described in detail below with reference to the drawings.

[0018]Referring to FIG. 9, an exemplary method for making a lens array 400 is described in detail as follows:

[0019]Referring to FIGS. 1 and 2, an imprinting mold 100 is provided. The imprinting mold 100 includes a molding surface 110. A plurality of microstructures 120 are defined in the molding surface 110. The microstructures 120 are configured for molding the lens array 400. In the present embodiment, the microstructures 120 are recesses defined in the molding surface 110. It can be understood that in alternative embodiments, the microstructures 120 can be protrusions protruding from the molding surface 110. In the present embodiment, a surface of each microstructure 120 is aspheric. It can be understood that in alternative embodiments, the surface of each microstructure 120 can be spherical.

[0020]A plurality of first alignment marks 130 are formed on the molding surface 110. In the pre...

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Abstract

An exemplary method for making a lens array is as follows. An imprinting mold and a substrate are provided. A blob of molding material is applied on each molding section of the substrate. The first alignment marks, and the second alignment mark of the imprinting mold are aligned with the fourth alignment marks, and the third alignment mark of one of the imprinting regions, respectively. The imprinting mold is pressed on the molding material on the imprinting region. The pressed portions of the imprinting region are solidified to obtain lenses in the imprinting region. The imprinting mold is pressed on another one of the imprinting region, and the imprinting mold is removed. This process is repeated for each other imprinting region. Thus, a lens array is obtained.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to an imprinting mold that includes alignment marks, and to a method for making a lens array using such kind of imprinting mold.[0003]2. Description of Related Art[0004]Imprinting technology is a simple process with low cost, high throughput and high resolution. Imprinting technology is widely used for making a lens array in a wafer lens package (WLP) process.[0005]In an imprinting process involving a large substrate, a large size imprinting mold is usually employed to produce a lens array on the substrate. However, the large size imprinting mold may be very expensive to make due to the need for high precision. Furthermore, it may be unduly time-consuming to manufacture the large size imprinting mold.[0006]Therefore, an imprinting mold and a method for making a lens array which can overcome the above mentioned problems are desired.BRIEF DESCRIPTION OF THE DRAWINGS[0007]Many aspects of the present embodiments can ...

Claims

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Application Information

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IPC IPC(8): B29D11/00B28B3/00
CPCB29C33/00B29C33/30B29C33/303B29C43/021B29C43/58G02B3/0056B29C2043/5833B29D11/00278B29L2011/0016G02B3/0031B29C2043/3488
Inventor YU, TAI-CHERNG
Owner HON HAI PRECISION IND CO LTD