Read claim 1 of US20260206525A1 before reading anything else about it. The application, titled RECESS-BASED PICK AND PLACE FOR HETEROGENEOUS INTEGRATION, published on July 16, 2026 and is assigned to ASML NETHERLANDS B.V. It is an A1 publication — a pending application that has been laid open, not a granted patent. Nothing in it is enforceable today, and the claim set that eventually issues, if one does, may not be the claim set discussed here.

Claim 1 is an apparatus claim with three recited elements. The first is a stage carrying pockets: "a first stage comprising a plurality of recesses, the plurality of recesses configured to accept a plurality of donor dies". The second is "a second stage comprising a support for one or more targets" — the receiving wafer or substrate. The third is a measurement system, functionally coupled to the first stage, that does the actual work of the claim through four configured actions.

Those four actions are where the scope lives. The measurement system is configured to obtain the locations of the donor dies sitting in the recesses; to "obtain locations of the one or more targets"; based at least on the obtained locations, to provide output signals that adjust the die locations to correspond to "the obtained locations of the one or more targets"; and based at least in part on those adjusted locations, to provide output signals that place the dies onto the targets by relative movement between the two stages.

based at least in part on the adjusted locations, provide output signals to place the plurality of donor dies on the one or more targets supported by the second stage by relative movement between the first stage and the second stage— RECESS-BASED PICK AND PLACE FOR HETEROGENEOUS INTEGRATION, US20260206525A1

That last limitation is the architectural point. A conventional pick-and-place head carries one die at a time and aligns it at the moment of transfer, so alignment time scales with die count. Claim 1 describes the opposite ordering: the dies are already parked in pockets, the measurement system corrects every one of them in place, and the transfer is then a single relative movement between two stages. Claim 14 confirms that a separate loading mechanism sits upstream, reciting "a pick and place tool, functionally coupled to the measurement system" configured to place donor dies within the recesses. The pick head, in other words, is not the alignment instrument in this claim — it is the loader.

The abstract and claim 1 do not describe the same measurement sequence

There is a difference between the two texts worth stating precisely, because it is exactly the kind of difference that gets lost when a patent is summarized from its abstract. Claim 1 recites, as its own separate step, that the measurement system is configured to "obtain locations of the one or more targets," and then aligns the dies to "the obtained locations of the one or more targets". The abstract does not contain that step. Its corresponding passage moves directly from obtaining the donor-die locations to providing output signals to adjust them "to correspond to locations of the one or more targets" — target locations that carry no "obtained" qualifier, because in the abstract's description nothing obtained them.

Stated as a matter of record rather than interpretation: the abstract describes a machine that measures the dies and aligns them to target positions it does not measure, while claim 1 recites a machine that measures both populations and aligns measured locations to measured locations. Anyone summarizing this application from its abstract will describe a different measurement sequence than the one the claims recite. Claim 15, the parallel method claim, tracks the claim-1 sequence rather than the abstract's, reciting "measuring a plurality of target locations" as its own step. This is why claim-level reading is not a formality here.

What the dependents build out, and where the file sits

The dependent claims describe the mechanism. Claims 2 through 5 place adjustable stages inside the recesses themselves, driven by actuators (claim 3) and specifically by piezoelectric activations (claim 4), with claim 5 reciting stages "adjustable with respect to six degrees of freedom." That is per-die correction happening inside the pocket, before transfer. Claim 6 supplies the sensing front end, reciting "an imaging device configured to obtain images of the plurality of donor dies in the plurality of recesses" plus a processor that derives locations from those images. Claims 7 and 8 then split by detector geometry — two-dimensional images from at least one photodetector in claim 7, one-dimensional images from at least two photodetectors in claim 8 — with each reciting a list of detectable features that includes die edges, die corners, recess edges, and the gap between a die edge and a recess edge.

Claim 12 adds retention: "electrostatic clamps are disposed within the plurality of recesses," controllable by the measurement system, released at least in part as the stages close and the dies transfer. Claim 19, on the method side, recites applying a voltage between the dies and the target locations, "the voltage configured to cause alignment of the plurality of donor dies and the plurality of target locations", alongside partial release of the clamping force. Claim 21 recites a pipelined layout in which the first stage carries multiple sets of recesses, one set accepting dies while another is being optically measured. One housekeeping note for anyone counting: the application carries 21 numbered claims of which claim 9 is canceled, so 20 are operative and the printed set runs 8 straight to 10.

The classification places the file squarely in device-assembly rather than lithography proper: H10P 72/0446, H10P 72/0606, H10P 72/53 and H10P 72/7622. That is the heterogeneous-integration and advanced-packaging neighborhood, where alignment accuracy and placement throughput trade against each other directly. The company's publication cohort from the same day is otherwise dominated by its familiar litho and metrology terrain — an EUV utilization system (US20260206121A1), a lithographic apparatus thermal conditioning system (US20260202767A1), methods for determining reticle deformations (US20260202766A1), a multimode-optical-fiber metrology system (US20260202761A1), and apparatus for generating a denoising model (US20260203875A1). The closest mechanical relative to the hero's in-recess adjustable stages is US20260204466A1, an actuation stage and electromagnet apparatus. Note that several of these records index under the mixed-case assignee string "ASML Netherlands B.V." rather than the all-caps form on the hero; they are the same legal entity.

What US20260206525A1 discloses, then, is an apparatus in which measurement and correction are decoupled from transfer and applied to a whole population of dies at once. Whether that claim language survives prosecution is unknown — the application published on July 16, 2026 and its examination is ahead of it, not behind it.