# US 11,029,332 B2 · Test socket with insertion portion > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,029,332 B2 - Document ID: US11029332B2 - Status: Granted - Kind: B2 - Application number: 16/372,284 - Filed: 2019-04-01 - Published: 2019-11-14 - Granted: 2021-06-08 - Earliest claimed: 2018-05-08 - Assignees: Yamaichi Electronics Co., Ltd. - Applicants: Yamaichi Electronics Co., Ltd. - Inventors: Kouki Nakashima - Web page: https://patentgrep.com/patent/US11029332B2 ## CPC - G01R 1/0466: {concerning contact pieces or mechanical details, e.g. hinges or cams; Shielding} - G01R 31/2891: {related to sensing or controlling of force, position, temperature (G01R31/2874 takes precedence; sensing of force G01L; sensing of position G01B, G01D; sensing of temperature G01K; controlling in general G05)} - G01R 1/0483: {Sockets for unleaded IC's having matrix type contact fields, e.g. BGA or PGA devices; Sockets for unpackaged, naked chips} - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) ## Abstract The test socket includes: a pressing body for pressing an IC package housed in a device housing portion in a direction toward a board; a lid-part main body holding the pressing body while allowing reciprocating movement in the direction toward and from the board, and to be connected to a housing-part main body; a stopper attached at an intermediate point to the lid-part main body so that the stopper is swingable, the stopper having an engaging portion 5a coming into engagement with the housing-part main body, and a proximal end portion approaching and separating from a side surface of the lid-part main body; and an insertion portion to be inserted into a gap between the proximal end portion and the side surface of the lid-part main body according to an action of the pressing body pressing the IC package in the direction toward the board. ## Claims ### Claim 1 A test socket comprising: a housing-part main body formed with a device housing portion for housing a test device and to be mounted on a board; a pressing body pressing the test device housed in the device housing portion in a direction toward the board; a lid-part main body holding the pressing body while allowing reciprocating movement in the direction toward and from the board, and to be connected to the housing-part main body; an engaging member attached to the lid-part main body so that the engaging member is swingable with an intermediate point as a pivot axis, the engaging member having a distal end portion coming into engagement with the housing-part main body, and a proximal end portion approaching and separating from an opposing surface of the lid-part main body; and an insertion portion to be inserted into a gap between the proximal end portion and the opposing surface of said lid-part main body, the insertion portion is inserted into the gap from a position retracted from the gap according to an action of the pressing body pressing the test device in the direction toward the board. ### Claim 2 (depends on 1) The test socket according to claim 1, wherein the insertion portion is provided on a reciprocating member, the reciprocating member being fastened to reciprocate together with the pressing body. ### Claim 3 (depends on 2) The test socket according to claim 2, wherein the reciprocating member comprises a plate-like body being placed so that the lid-part main body is interposed between the plate-like body and the pressing body and extending in a direction orthogonal to a reciprocating direction, and a connecting member connecting and fastening the plate-like body and the pressing body together. ### Claim 4 (depends on 1) The test socket according to claim 1, wherein the lid-part main body comprises a housing recess housing the pressing body. ### Claim 5 (depends on 1) The test socket according to claim 1, further comprising: a manipulating member having a tip in contact with the pressing body, and displacing the pressing body in the direction toward the board by manipulation of a knob part; and an intermediate member provided between the knob part of the manipulating member and the lid-part main body, and contacting the knob part, wherein the insertion portion is provided on the intermediate member. ### Claim 6 (depends on 1) The test socket according to claim 1, further comprising a manipulating member having a tip in contact with the pressing body, and displacing the pressing body in the direction toward the board by manipulation of a knob part, wherein the insertion portion is formed on the knob part of the manipulating member. ### Claim 7 (depends on 1) The test socket according to claim 1, wherein the lid-part main body is provided with a toggle clamp for pressing the pressing body, and the insertion portion is provided on a lever part of the toggle clamp. ### Claim 8 (depends on 1) A test socket according to claim 1, further comprising a contact terminal for electrically connecting the test device and the board, wherein the pressing body is conductive, and the insertion portion is inserted into the gap from a contact position where the pressing body contacts the contact terminal when the test device is not mounted in the device housing portion, for a period of time until the pressing body is separated and disconnected from the contact terminal.