Resin molding apparatus and method of manufacturing resin molded product

Patent metadata

Field	Value
Publication number	US-11833722-B2
Application number	US-202117407746-A
Country	US
Kind code	B2
Filing date	Aug 20, 2021
Priority date	Aug 25, 2020
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A resin molding apparatus includes: a first molding mold provided with a first member and a second member configured to move relative to the first member, and configured to form a cavity by the first member and the second member; a second molding mold configured to hold a substrate; and a mask member so as to be relatively immovable with respect to the first member, configured to make contact with a portion of the substrate when the first molding mold and the second molding mold are clamped, and formed with a flow portion through which a resin material existing in the cavity and pressurized by the second member is capable of flowing.

First claim

What is claimed is:

1. A resin molding apparatus, comprising:
a lower mold provided with a side surface member and a bottom surface member, which is configured to be capable of moving up and down with respect to the side surface member, and configured to form a cavity by the side surface member and the bottom surface member, wherein the side surface member surrounds the bottom surface member;
an upper mold configured to hold a substrate; and
a metallic mask configured to make partial contact with the side surface member, configured to be formed substantially in a form of the cavity, configured to make contact with a portion of the substrate when the lower mold and the upper mold are clamped, and formed with a flow portion through which a resin material existing in the cavity and pressurized by the bottom surface member is capable of flowing.

2. The resin molding apparatus of claim 1 , wherein the flow portion is formed on an outer peripheral portion of the metallic mask.

3. The resin molding apparatus of claim 1 , wherein the side surface member is formed in a frame shape so as to surround the cavity from a lateral side, and
wherein an outer peripheral portion of the metallic mask is disposed to be placed on the side surface member.

4. The resin molding apparatus of claim 3 , wherein a first tapered portion is formed on the outer peripheral portion of the metallic mask, and
wherein the metallic mask is disposed so that the first tapered portion comes into contact with the side surface member.

5. The resin molding apparatus of claim 4 , wherein a second tapered portion having a shape corresponding to the first tapered portion is formed on the side surface member, and
wherein the metallic mask is disposed so that the first tapered portion comes into contact with the second tapered portion.

6. The resin molding apparatus of claim 1 , wherein the flow portion is formed at least at two locations facing each other with a center of the metallic mask interposed therebetween.

7. The resin molding apparatus of claim 1 , wherein the flow portion is formed so as to narrow a flow route of the resin material toward a flow direction of the resin material.

8. A method of manufacturing a resin molded product by using the resin molding apparatus of claim 1 .

9. A method of manufacturing a resin molded product, comprising:
disposing a metallic mask configured to make partial contact with a side surface member of a lower mold forming a cavity, in which a resin material is accommodated, with a bottom surface member of the lower mold configured to be capable of moving up and down with respect to the side surface member, wherein the metallic mask configured to be formed substantially in a form of the cavity and wherein the side surface member surrounds the bottom surface member;
clamping the lower mold and an upper mold holding a substrate, and bringing the disposed metallic mask into contact with a portion of the substrate; and
performing a resin molding on the substrate by pressurizing the resin material in the cavity to allow the resin material to flow through a flow portion formed in the metallic mask.

10. The method of claim 9 , wherein the flow portion is formed on an outer peripheral portion of the metallic mask.

Assignees

• Towa Corp

Inventors

• Yasui Hayato
• Onishi Yohei
• Okazaki Hitoshi

Classifications

• H10W74/016

  using moulds · CPC title

• H10W74/01

  Manufacture or treatment · CPC title

• H10P72/1906

  specially adapted for containing masks, reticles or pellicles · CPC title

• B29C43/18 Primary

  incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles {(B29C43/206 takes precedence)} · CPC title

• B29C43/36

  Moulds for making articles of definite length, i.e. discrete articles · CPC title