A project brief is the document that decides whether a TGV alignment packaging machine quotation comes back comparable or comes back vague. Glass via packaging work sits at the intersection of handling, alignment accuracy and cycle time, and a supplier cannot design around those three variables until a buyer writes them down. The good news is that the brief does not need to be a design manual. It needs to be specific enough that an equipment team can answer each question without guessing on your behalf.
What the brief has to settle before anyone can quote
The TGV alignment packaging machine on the PowerDe semiconductor line handles glass plate and PI film soft alignment packaging, with selectable process recipes intended to reduce alignment bubbles. That description already tells you what a buyer must supply: which material pair you are bonding, how the parts arrive, what your tolerance budget is, and what line you expect the machine to sit in. A brief that answers these four questions lets an equipment maker propose an alignment scheme, a feeding method and a recipe structure instead of a generic price.
The materials: substrate, film and how they reach the machine
Write the substrate first. State the glass thickness and size, the via pitch and whether the via field covers the whole plate or a defined zone, and whether the plate arrives coated, cleaned or bare. Then write the film: PI thickness, whether it is supplied on a roll or as pre-cut sheets, and whether a release liner has to be handled. These details change the pick-up method, the vacuum handling design and the alignment reference you can use.
Handling is where many briefs go wrong, because it is treated as an afterthought. If parts arrive in cassettes, say so and give the cassette pitch. If they arrive in trays, give the tray layout and the orientation rule. If the previous process leaves a part on a conveyor, describe that handover. Alignment packaging machines are usually integrated with what comes before and after them, and an undocumented handover becomes a change order later.
Alignment and bonding targets, written as numbers you can test
For a glass-to-film bonding step, an alignment tolerance without a measurement method is not a specification. State the target offset you need, and state how you intend to verify it: camera marks on the glass, edge reference, or a test coupon read afterwards. Then state what you will accept as a defect. Bubble size, bubble location and the count per unit are the practical measures in this process, and PowerDe lists selectable process recipes on this machine line specifically for reducing alignment bubbles, so a brief that names the bubble criteria the process team can work against.
Bonding conditions belong in the same section. If your process window has limits on temperature, pressure or dwell, list them. If they are still open because your material set is new, say that plainly and mark them as items to be established jointly during trials. An open parameter is far safer than an invented one.
Line context, utilities and the space the machine has to fit into
Include the footprint you can offer, the available power supply, compressed air, and any cleanroom class or exhaust requirement. Then state the throughput you need as a units-per-hour target or a cycle-time ceiling, and note whether that figure is a start-of-project requirement or an end-of-ramp target. If you are building a production line rather than buying one box, describe the neighbouring stations so the supplier can size the load interfaces.
Where a TGV step sits inside a wider semiconductor process equipment flow, mention the upstream and downstream steps in the same breath. Bonding, laminating and debubbling steps interact, and a machine specified in isolation often creates a bottleneck one station away.
Acceptance: the trials you will run before signing off
Close the brief with your acceptance plan. Name the samples you will supply for trials, the yield or quality criteria you will measure on them, and the run length you consider a valid demonstration. Add the service questions: commissioning support, operator training, spare parts, and who owns recipe tuning once the machine is running. A brief that ends with an acceptance plan protects both sides, because the supplier prices the trials they will have to run rather than assuming they can be skipped.
A short checklist to attach to your enquiry
- Glass substrate: size, thickness, via pitch, surface state, incoming quantity per batch
- PI film: thickness, roll or sheet, liner handling, storage conditions
- Alignment target and the measurement method you will use to confirm it
- Bubble and defect criteria: acceptable size, position and count per unit
- Bonding window: temperature, pressure, dwell, or an explicit note that it must be established in trials
- Throughput target, and whether it applies at installation or after ramp-up
- Footprint, power, air, cleanroom class, exhaust
- Incoming and outgoing handover: cassette, tray or conveyor, with orientation rules
- Trial samples you will provide and the acceptance run length
- Service expectations: commissioning, training, spares, recipe support
If your project also needs equipment beyond packaging, PowerDe's engineering support covers development and integration work alongside machine supply. Send the checklist above with your enquiry to contact the PowerDe team, and ask for a written response against each item. A supplier who answers item by item has read your brief; one who answers with a catalogue has not.
