# US 12,216,156 B2 · Chip test pressing-down apparatus and formation method thereof

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- Number: US 12,216,156 B2
- Document ID: US12216156B2
- Status: Granted
- Kind: B2
- Application number: 18/432,968
- Filed: 2024-02-05
- Published: 2024-12-12
- Granted: 2025-02-04
- Earliest claimed: 2023-06-06
- Assignees: Semight Instruments Co., Ltd
- Applicants: Semight Instruments Co., Ltd
- Inventors: Zhe Lian; Jianjun Huang; Yonghong Wu; Shan Zhao; Haiyang Hu
- Web page: https://patentgrep.com/patent/US12216156B2

## CPC

- G01R 31/2886: {Features relating to contacting the IC under test, e.g. probe heads; chucks (G01R31/2865 takes precedence, test connections, e.g. test sockets, or probes per se, G01R1/04 or G01R1/06)}
- G01R 1/04: Housings; Supporting members; Arrangements of terminals
- G01R 3/00: Apparatus or processes specially adapted for the manufacture {or maintenance} of measuring instruments {, e.g. of probe tips}
- G01R 31/28: Testing of electronic circuits, e.g. by signal tracer ({EMC, EMP or similar testing of electronic circuits G01R31/002;} testing for short-circuits, discontinuities, leakage or incorrect line connection G01R31/50; checking computers {or computer components} G06F11/00; checking static stores for correct operation G11C29/00 {; testing receivers or transmitters of transmission systems H04B17/00})
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

The present disclosure includes a die test pressing-down apparatus and a formation method. The die test pressing-down apparatus includes a support frame capable of moving along a vertical direction; and a pressing-down block installed on the support frame. A part to-be-pressed is disposed directly below the pressing-down block. The pressing-down block is connected to the support frame through an installation plate; a strip-shaped through hole is formed at an upper surface of the support frame; a first protruding strip is at each lower portion of two opposite inner walls of the strip-shaped through hole; a corresponding second protruding strip is at each upper portion of two opposite side surfaces of the installation plate; and a side of a strip-shaped block is fixedly connected to the upper surface of the support frame, and another side of the strip-shaped block is connected to the second protruding strip through at least two springs.

## Claims

### Claim 1

A die test pressing-down apparatus, comprising:
a support frame capable of moving along a vertical direction; and
a pressing-down block installed on the support frame, wherein a part to-be-pressed is disposed directly below the pressing-down block, wherein:
the pressing-down block is connected to the support frame through an installation plate; a strip-shaped through hole is formed at an upper surface of the support frame; a first protruding strip is at each of lower portions of two opposite inner walls of the strip-shaped through hole; a corresponding second protruding strip extending directly above the first protruding strip is at each of upper portions of two opposite side surfaces of the installation plate; a strip-shaped block is disposed above each second protruding strip; and a side of the strip-shaped block is fixedly connected to the upper surface of the support frame, and another side of the strip-shaped block extends to directly above the second protruding strip and is connected to the second protruding strip through at least two springs; and
when the pressing-down block and the part to-be-pressed are spaced apart from each other, a lower surface of the second protruding strip is adjoined to be in a contact with an upper surface of a corresponding first protruding strip; and when a lower surface of the pressing-down block is tightly pressed with an upper surface of the part to-be-pressed, a gap is formed between the lower surface of the second protruding strip and the upper surface of the corresponding first protruding strip.

### Claim 2 (depends on 1)

The die test pressing-down apparatus according to claim 1, wherein:
each second protruding strip is connected to the strip-shaped block by a quantity of 4 to 8 springs arranged at an equal interval along a length direction of the strip-shaped block.

### Claim 3 (depends on 1)

The die test pressing-down apparatus according to claim 1, wherein:
an installation groove for an end portion of a spring to be inserted is formed at an upper surface of the second protruding strip and/or at a lower surface of the strip-shaped block.

### Claim 4 (depends on 1)

The die test pressing-down apparatus according to claim 1, wherein:
the strip-shaped through hole is formed at a horizontal portion of the support frame; and
a vertical portion of the support frame is installed on a surface of a side of an installation base plate, which is vertically configured, through at least two sets of vertical guiding rails and vertical sliding blocks matched with each other.

### Claim 5 (depends on 4)

The die test pressing-down apparatus according to claim 4, wherein:
the horizontal portion of the support frame is at an upper end of the vertical portion and extends to another side of the installation base plate.

### Claim 6 (depends on 1)

The die test pressing-down apparatus according to claim 1, wherein:
the pressing-down block and the part to-be-pressed are matched to be connected to each other through at least two sets of pins and pin holes.

### Claim 7 (depends on 1)

The die test pressing-down apparatus according to claim 1, wherein:
the pressing-down block is fixedly installed on a lower surface of the installation plate.