MEMS Microphone Glue Dispenser — 10 nL Minimum Deposit

Product Overview

This automatic dispenser is built for MEMS microphone and small sensor assembly where very small, repeatable glue dots and precise placement are required. It supports micro‑jet and syringe/valve heads so you can produce nL to µL deposits as needed. The system includes motion control, optional camera alignment, recipe storage and easy nozzle change to speed setup and reduce downtime.

Problem 

MEMS microphone assembly fails when adhesive is too large or misaligned, causing acoustic issues, blockage of openings, or poor bonding that leads to rejects.

Cause 

Small pads and vents require micro‑drops and tight placement. Manual dispensing and low‑precision machines cannot reliably place nL drops or correct for part shift, producing variation and downstream failures.

Solution 

This dispenser uses a micro‑jet head for 10 nL drops or syringe/valve heads for larger dots, combined with precise motion and optional vision alignment to correct position before dispensing. Recipes record pulse, pressure and coordinates for repeat runs. Quick nozzle swaps and purge routines reduce clogging and maintenance.

Core Modules

Single-Valve Dispensing Module

Nib-contact dispensing to match precise dispensing of low-viscosity adhesive such as Coating and Fill

Double-Valve Solder Paste Printing / Dispensing Module

Synchronized control of double valves to achieve more efficient operation

Double valves can be fine-tuned according to the position of the material plate

Low-Level Alarm Module

Avoiding poor operation caused by lack of glue

Visual System

Positioning and detection functions

Inspection before operation to avoid detective incoming materials

Inspection after operation to prevent batch defects

Lateral-Pushing Module

Lateral angle correction of materials to ensure accurate positioning of materials

Pinch Roller Mechanism

Avoiding poor operation caused by warping of thin substrates during conveying

Application

• MEMS microphone dotting and small opening dosing to avoid acoustic blockage.
• Sensor and micro‑module adhesive dots for bonding and sealing.
• Camera module tack glue and vent hole dosing where micro volumes are required.
• Pilot and production lines where repeatable nL deposits and vision alignment reduce rework.

How It Works 

A micro‑jet or syringe head mounts on a precision motion stage. The optional camera locates fiducials and corrects for shift and rotation. For each point the controller issues a timed pulse to the head to deposit the set volume. Micro‑jet heads use short energy pulses to form nL drops; syringe/valve heads deliver µL dots or beads. Purge and brief cleaning cycles prevent nozzle clogging and maintain stable output.

How To Choose

1. Confirm your target minimum deposit and pad pitch; choose micro‑jet for nL work.
2. Provide adhesive viscosity at working temperature and any solids content for head selection.
3. Supply part dimensions and required working area to size motion stroke and fixture.
4. State required throughput (points per hour) to set head frequency and motion profile.
5. Decide if vision alignment or inline inspection is needed for your tolerance.
6. Request a bench test with your parts and adhesive to confirm settings and output logs.

FAQ

Q1: Can the system place 10 nL drops reliably in production?
A1: Yes — with a micro‑jet head, vision alignment and proper purge routines, stable 10 nL deposits are achievable. We recommend a bench tune for final settings.

Q2: What adhesive types are supported?
A2: The system supports low‑viscosity adhesives for micro‑jets and medium‑viscosity epoxies for syringe/valve heads. Send sample adhesive and viscosity at working temperature for validation.

Q3: How do you avoid nozzle clogging with nL dispensing?
A3: Use low‑dead‑volume heads, programmed purge cycles and short runs; spare nozzles reduce downtime when swaps are needed.

Q4: Is the machine easy to integrate into a robot line?
A4: Yes. Standard PLC/robot I/O and a compact flange allow robot mounting and line synchronization. Provide your robot interface details for confirmation.

Q5: Do you offer sample testing with our parts?
A5: Yes. Send parts and adhesive data (viscosity and SDS). We run tests, record logs and return a report with recommended head, nozzle and settings.

About Mingseal

Mingseal is an innovative high-end dispensing and automation technology company with over 15 years of experience delivering smart fluid control solutions. Our inline and desktop dispensing systems help leading manufacturers worldwide achieve tighter tolerances, higher yields, and lower production costs. From MEMS and semiconductor packaging to mobile electronics, we provide solutions you can trust for tomorrow’s challenges.

Contact Mingseal today to see how the GS600M Series can optimize your MEMS or ASIC assembly with reliable inline performance, top-class precision, and full smart factory readiness.