IP Library Granted Patent US 12,502,687
Granted Patent B2
US 12,502,687 · App. 17/865,122 · Granted Dec 23, 2025

Dispensing adjustment system and method thereof

Inventors: Lu-Min Chen (Taipei, TW); Tsung-Lin Tsai (Taipei, TW)
Assignee: Kulicke & Soffa Hi-Tech Co., Ltd.
B05C5/0225B05C5/0208
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Quick Facts
Patent No.
US 12,502,687
App. No.
17/865,122
Granted
Dec 23, 2025
Kind
B2
Abstract

A dispensing adjustment system is provided. The dispensing adjustment system includes an optical measuring unit, a glue dispensing control unit, and a calculating unit electrically connected to the optical measuring unit and the glue dispensing control unit. The optical measuring unit measures a glue to obtain a three-dimensional (3D) glue signal. The calculating unit receives the 3D glue signal to obtain a volume or a weight of the glue and compares the volume or weight of the glue with a default glue value. If the volume or the weight of the glue fails to conform to the default glue value, the calculating unit transmits a glue adjustment signal to the glue dispensing control unit, which in turn adjusts the amount of glue supplied according to the glue dispensing adjustment signal.

Claims (33)

1 . A dispensing adjustment system, comprising:

an optical measuring unit;

a glue dispensing control unit; and

a calculating unit electrically connected to the optical measuring unit and the glue dispensing control unit;

wherein the optical measuring unit measures a glue to obtain a N th three-dimensional (3D) glue signal and N is a constant, and the calculating unit receives the N th 3D glue signal to obtain a weight of the glue and compares the weight of the glue with a default glue value, wherein if the weight of the glue fails to conform to the default glue value, the calculating unit transmits a N th glue dispensing adjustment signal to the glue dispensing control unit, whereby the glue dispensing control unit adjusts the glue supplied thereby according to the N th glue dispensing adjustment signal.

2 . The dispensing adjustment system of claim 1 wherein the optical measuring unit includes a confocal laser scanning microscopy measuring unit.

3 . The dispensing adjustment system of claim 2 , wherein the optical measuring unit excludes lights within an out-of-focal plane via a pinhole.

4 . The dispensing adjustment system of claim 2 , wherein the optical measuring unit observes a plurality of layers of the glue to obtain the N th 3D glue signal.

5 . The dispensing adjustment system of claim 2 , wherein the optical measuring unit is a confocal laser scanning microscopy, a combination of a femtosecond infrared laser and a confocal microscopy, or a confocal laser.

6 . The dispensing adjustment system of claim 1 , wherein the glue dispensing control unit provides the glue for a glue dispensing unit to dispense the glue to a target position of a N+1 th substrate.

7 . The dispensing adjustment system of claim 1 , wherein the weight of the glue supplied by the glue dispensing control unit is 99%-101% of the default glue value.

8 . The dispensing adjustment system of claim 1 , further comprising a conveying unit, the optical measuring unit being disposed over the conveying unit, the conveying unit configured to convey an N th target substrate to a position within a view of the optical measuring unit to obtain the three-dimensional (3D) glue signal.

9 . The dispensing adjustment system of claim 1 , wherein the glue dispensing control unit is connected to a glue dispensing unit, and the glue dispensing control unit can control the weight of the glue supplied thereby to the glue dispensing unit.

10 . The dispensing adjustment system of claim 1 , further comprising a glue dispensing unit, the glue dispensing unit being a dispensing needle.

11 . A dispensing adjustment method, comprising:

obtaining a N th 3D glue signal: conveying a N th substrate to a position under a glue dispensing unit by a conveying unit, wherein N is a constant; dispensing a glue to a target position of the N th substrate by the glue dispensing unit; measuring the glue to obtain a N th 3D glue signal by an optical measuring unit;

obtaining a N th glue dispensing adjustment signal: performing a calculation according to the N th 3D glue signal by a calculating unit to obtain a weight of the glue at the target position of the N th substrate and comparing the weight of the glue with a default glue value by the calculating unit, wherein if the weight of the glue fails to conform to the default glue value, the calculating unit transmits a N th glue dispensing adjustment signal to a glue dispensing control unit; and

dispensing the glue to a N+1 th substrate: conveying the N th substrate to leave from the position under the glue dispensing unit and conveying a N+1 th substrate to the position under the glue dispensing unit, adjusting the glue supplied by the glue dispensing control unit according to the N th glue dispensing adjustment signal and provided the glue for the glue dispensing unit, and dispensing the glue supplied by the glue dispensing control unit to a target position of the N+1 th substrate by the glue dispensing unit and then returning to a step of obtaining the N th 3D glue signal.

12 . The dispensing adjustment method of claim 11 , wherein the step of obtaining the N th 3D glue signal includes measuring the glue to obtain the N th 3D glue signal by the optical measuring unit, the optical measuring unit including a confocal laser scanning microscopy measuring unit.

13 . The dispensing adjustment method of claim 12 , wherein the optical measuring unit is a confocal laser scanning microscopy, a combination of a femtosecond infrared laser and a confocal microscopy, or a confocal laser, and the optical measuring unit measures the glue at the target position of the N th substrate to obtain the N th 3D glue signal.

14 . The dispensing adjustment method of claim 12 , wherein the step of obtaining the N th 3D glue signal includes using a pinhole of the optical measuring unit to exclude lights within an out-of-focal plane.

15 . The dispensing adjustment method of claim 12 , wherein the step of obtaining the N th 3D glue signal includes measuring the glue by observing a plurality of layers of the glue to obtain the N th 3D glue signal by the optical measuring unit.

16 . The dispensing adjustment method of claim 11 , wherein the weight of the glue supplied by the glue dispensing control unit is 99%-101% of the default glue value.

17 . The dispensing adjustment method of claim 11 , wherein the glue dispensing unit is a dispensing needle.

18 . A dispensing adjustment system, comprising:

an optical measuring unit, the optical measuring unit being a confocal laser scanning microscopy optical measuring unit, the confocal laser scanning microscopy optical measuring unit being configured to observe layers of a glue, the optical measuring unit configured to exclude lights within an out-of-focal plane via a pinhole;

a glue dispensing control unit; and

a calculating unit electrically connected to the optical measuring unit and the glue dispensing control unit;

wherein the optical measuring unit measures a glue to obtain a N th three-dimensional (3D) glue signal and N is a constant, and the calculating unit receives the N th 3D glue signal to obtain a volume or a weight of the glue and compares the volume or the weight of the glue with a default glue value, wherein if the volume or the weight of the glue fails to conform to the default glue value, the calculating unit transmits a N th glue dispensing adjustment signal to the glue dispensing control unit, whereby the glue dispensing control unit adjusts the glue supplied thereby according to the N th glue dispensing adjustment signal.

19 . A dispensing adjustment method, comprising:

obtaining a N th 3D glue signal: conveying a N th substrate to a position under a glue dispensing unit by a conveying unit, wherein N is a constant; dispensing a glue to a target position of the N th substrate by the glue dispensing unit; measuring the glue to obtain a N th 3D glue signal by an optical measuring unit, the optical measuring unit being a confocal laser scanning microscopy optical measuring unit, the confocal laser scanning microscopy optical measuring unit being configured to observe layers of the glue, the optical measuring unit using a pinhole of the optical measuring unit to exclude lights within an out-of-focal plane;

obtaining a N th glue dispensing adjustment signal: performing a calculation according to the N th 3D glue signal by a calculating unit to obtain a volume or a weight of the glue at the target position of the N th substrate and comparing the volume or the weight of the glue with a default glue value by the calculating unit, wherein if the volume or the weight of the glue fails to conform to the default glue value, the calculating unit transmits a N th glue dispensing adjustment signal to a glue dispensing control unit; and

dispensing the glue to a N+1 th substrate: conveying the N th substrate to leave from the position under the glue dispensing unit and conveying a N+1 th substrate to the position under the glue dispensing unit, adjusting the glue supplied by the glue dispensing control unit according to the N th glue dispensing adjustment signal and provided the glue for the glue dispensing unit, and dispensing the glue supplied by the glue dispensing control unit to a target position of the N+1 th substrate by the glue dispensing unit and then returning to a step of obtaining the N th 3D glue signal.

Assignments (3)
CHANGE OF NAME Recorded Sep 15, 2023
From: ADVANCED JET AUTOMATION CO., LTD
To: KULICKE AND SOFFA HI-TECH CO., LTD.
Reel/Frame 064928/0237 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 25, 2022
From: SAMURAI SPIRIT INC.
To: ADVANCED JET AUTOMATION CO., LTD
Reel/Frame 061878/0449 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 14, 2022
From: CHEN, LU-MIN; TSAI, TSUNG-LIN
To: SAMURAI SPIRIT INC.
Reel/Frame 060510/0190 →
Priority Claims (1)
TW 111122776 · Jun 20, 2022 · national
Continuity (1)
Related Publication 20230405629A1 · Dec 21, 2023
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