Start with the part and the process, not the machine
Write down what actually goes into the chamber. That means the stack being bonded (for example an OCA or OCR layer between glass and a display module, or a flexible film onto a curved surface), the outline dimensions of the largest and smallest workpiece, the number of pieces per batch, and how those pieces are loaded — on a tray, on a fixture, or on a carousel. State the target takt: how many batches per shift the line must clear. All of these belong to your process, so no supplier can guess them, and a change in part size later usually means a change in chamber size.
Then describe the defect you are trying to remove. "Bubbles" covers several different problems: air trapped at the edge of a bond, voids inside the adhesive layer, or residue from a lamination pass that only becomes visible under backlight or under a tester. Note where the void appears, how large it is, and how it is detected today. A supplier who knows whether the void sits at the interface or inside the adhesive can argue for a different pressure profile and hold time rather than simply offering a bigger tank.
State the chamber and pressure envelope you need
Give the working chamber diameter and length as a range with the part envelope inside it. On our high-pressure debubbling machine listing, the recorded chamber is Φ1000 mm by 1200 mm in SUS304 stainless steel — one concrete reference point for how this class of equipment is specified. If your parts are larger or you intend to run several fixtures per cycle, say so at the outset, because the chamber drives the footprint, the door arrangement and the loading height.
For pressure, give three numbers rather than one: the operating pressure band you expect to work in, the maximum pressure your material stack can tolerate without delamination or flow marks, and the pressure you want the vessel itself rated for. The debubbling machine page records an operating range of 0.1–0.7 MPa and a test pressure of 1 MPa, with the safety level stated as up to level 2 pressure vessel standard and safety specifications following the AVBU Equipment Safety Specification V.2. Match those fields against your own safety requirement and record any difference — a local plant rule, an insurance condition or a customer audit standard — in the brief instead of leaving it for the commissioning stage.
List the process controls you expect to adjust
Debubbling quality is usually won or lost in the ramp, the hold and the release. In the brief, say whether you need recipe storage, and how many recipes, so you can hold one parameter set per product family. Specify the parameters you want visible on the control screen: pressure and temperature at minimum, plus hold time and, if your process uses it, heating rate and vent rate. On our machine the pressure display is digital, with Mpa, kgf/cm2, bar and psi as selectable units, which matters when an operator team and an overseas customer audit read the same gauge. If your line runs an inert atmosphere, a preheat stage or a nitrogen purge, list them as requirements with the reason attached, not as nice-to-haves.
Put the utility and floor constraints in writing
The most common late-stage surprises are site issues: available compressed-air pressure and flow, power supply and phase, room height for door swing and lifting, floor loading, and the routing for exhaust or vent lines. Give the machine's allotted floor space including door-open clearance and the operator's walking side, and state the maximum cycle time your line planner has assumed. Also record your inspection method after debubbling, because the acceptance rule for "no visible bubble" is what makes the cycle time defensible when the equipment is checked against the agreed performance.
Close the brief with documentation and acceptance
Ask in the brief for the vessel documentation you will be audited on, the safety certification package that supports the stated pressure-vessel class, the wiring and pneumatic drawings, the recipe and parameter manual, and the spare-parts list with lead times. Add the training you need for operators and for maintenance, and the language of the interface and manuals. Then state how you will accept the machine: which test parts, which inspection method, and which yield or void-count criterion the machine has to meet before sign-off.
If your enquiry touches the wider semiconductor process equipment group — lamination, bonding and debubbling in one line — include the upstream and downstream steps in the same document, since chamber size, cycle time and handling fixtures have to match across the sequence. Shenzhen PowerDe Automation Precision Equipment publishes its equipment enquiries through the contact page, where the address, phone and sales email are listed; send the finished brief there, and expect the first reply to focus on your part drawing and your pressure requirement rather than on a catalogue.
Parameters quoted in this article come from the product listing at the time of writing. Confirm the chamber size, pressure range and safety standard for your application with our engineers before you finalise an order.
