# US 2014/0190857 A1 · Limit member having protection cover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190857 A1 - Document ID: US20140190857A1 - Status: Published application - Kind: A1 - Application number: 13/774,176 - Filed: 2013-02-22 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: Gudeng Precision Industrial Co., Ltd. - Applicants: Gudeng Precision Industrial Co., Ltd. - Inventors: JAIN-PING SHENG; TZU-JENG HSU; CHEN-HAO CHANG; CHENG-EN CHUNG - Web page: https://patentgrep.com/patent/US20140190857A1 ## CPC - H10P 72/1912: {characterised by shock absorbing elements, e.g. retainers or cushions} - H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10 ## Abstract The present invention provides a limit member having a protection cover. The limit member is disposed in a substrate container and holds against the edge of at least one substrate received in the substrate container. The limit member has at least one limit portion and at least one protection cover. The protection cover is disposed on the limit portion. When the limit portion holds against the edge of the substrate, the substrate is against the protection cover on the limit portion, not being direct contact with the limit portion. This prevents the substrate from rubbing against the limit member to bring contamination particles, and further prevents the passivation layer of the substrate from being broken to pieces by the limit member to bring more contamination particles. ## Claims ### Claim 1 A limit member, comprising: a main body disposed in a substrate container and having at least one limit portion; and at least one protection cover disposed on the limit portion, the protection cover holding against an edge of at least one substrate received in the substrate container. ### Claim 2 (depends on 1) The limit member as claimed in claim 1, wherein the protection cover has a contact surface, and the contact surface is contact with the substrate. ### Claim 3 (depends on 2) The limit member as claimed in claim 2, wherein the contact surface has a first inclined surface and a second inclined surface, the substrate holding against an intersection of the first inclined surface and the second inclined surface, the first inclined surface and the second inclined surface intersecting to form an included angle, the included angle depending on the thickness of the substrate. ### Claim 4 (depends on 3) The limit member as claimed in claim 3, wherein the included angle of the first inclined surface and the second inclined surface is 180 degrees, and the contact surface is a flat surface. ### Claim 5 (depends on 2) The limit member as claimed in claim 2, wherein the contact surface is a curved surface, and the radian of the curved surface depends on the thickness of the substrate. ### Claim 6 (depends on 1) The limit member as claimed in claim 1, wherein the protection cover has a recess, and the limit portion is located in the recess. ### Claim 7 (depends on 6) The limit member as claimed in claim 6, wherein the limit portion has a cross-section corresponding in shape to that of the recess. ### Claim 8 A limit member, comprising: a main body mounted to a door of a substrate container; a plurality of resilient arms, each of the resilient arms having a connection end and an extension end, the connection ends of the resilient arms being connected to two sides of the main body, the extension ends of the resilient arms extending away from the main body, the extension end having a limit portion; and a plurality of protection covers each disposed on the limit portion of the extension end, the protection covers each holding against an edge of at least one substrate received in the substrate container. ### Claim 9 (depends on 8) The limit member as claimed in claim 8, wherein each of the protection covers has a contact surface, and the contact surface is contact with the substrate. ### Claim 10 (depends on 9) The limit member as claimed in claim 9, wherein the contact surface has a first inclined surface and a second inclined surface, the substrate holding against an intersection of the first inclined surface and the second inclined surface, the first inclined surface and the second inclined surface intersecting to form an included angle, the included angle depending on the thickness of the substrate. ### Claim 11 (depends on 10) The limit member as claimed in claim 10, wherein the included angle of the first inclined surface and the second inclined surface is 180 degrees, and the contact surface is a flat surface. ### Claim 12 (depends on 9) The limit member as claimed in claim 9, wherein the contact surface is a curved surface, and the radian of the curved surface depends on the thickness of the substrate. ### Claim 13 (depends on 8) The limit member as claimed in claim 8, wherein each of the protection covers has a recess, and the limit portion is located in the recess. ### Claim 14 (depends on 13) The limit member as claimed in claim 13, wherein the limit portion has a cross-section corresponding in shape to that of the recess. ### Claim 15 A limit member, comprising: at least one main body disposed on a side wall of a box of a substrate container and having at least one limit portion, the main body being perpendicular to at least one substrate received in the substrate container; and at least one protection cover disposed on the limit portion, the protection cover holding against an edge of the substrate. ### Claim 16 (depends on 15) The limit member as claimed in claim 15, wherein the protection cover has a contact surface, and the contact surface is contact with the substrate. ### Claim 17 (depends on 15) The limit member as claimed in claim 15, wherein the protection cover has a recess, and the limit portion is located in the recess.