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The PEEK Edge-Contact Pick-Up Shoe (OEM P/N 0040-97187) is a precision-machined wafer-contact component fitted to the robotic end-effector, or blade, of the wafer-handling subsystem in Applied Materials (AMAT) Quantum and xR-class ion implantation platforms. The “shoe” is the small replaceable pad that physically touches a 200mm silicon wafer when the atmospheric or vacuum transfer robot picks it up, carries it between cassette, load-lock, orienter and process station, and sets it down again. Each pick-up cycle relies on this single contact element to register the wafer accurately and hold it securely without slipping.
This particular shoe is an edge-contact design machined from PEEK (polyether ether ketone), engineered for a 3mm edge engagement at a 30 degree contact angle. Rather than gripping the active face of the wafer, the angled PEEK lip cradles only the extreme bevelled edge, transferring load through a narrow line of contact along the wafer perimeter. The 30 degree geometry matches the chamfer of a standard 200mm wafer edge, so the wafer self-seats into a repeatable position when the blade lifts it.
Although small and inexpensive relative to the implanter as a whole, the pick-up shoe is a critical wear item. Because it defines where the wafer sits on the blade, any wear, contamination or misalignment of the shoe propagates directly into placement accuracy, particle generation and ultimately wafer breakage, making it a component that maintenance teams replace proactively rather than waiting for failure.
Within the wafer-handling chain of a Quantum or xR-class implanter, the PEEK edge-contact shoe performs several interdependent jobs every time the robot touches a wafer. It is the mechanical interface between an unforgiving polished substrate and a fast-moving handling arm:
PEEK is chosen for wafer-contact shoes because it combines low particulate generation with dimensional stability under repeated mechanical cycling. As a semi-crystalline thermoplastic, it offers a favourable balance of stiffness and compliance: hard enough to hold a precise edge geometry, yet softer than the silicon it contacts so the wafer edge is not chipped on seating.
The defining features of this shoe are its 3mm edge engagement and 30 degree contact angle. Together they govern how the wafer registers, how much friction is available to resist slip, and how stress is distributed at the contact line.
Because the shoe sets where each wafer sits on the blade, its condition feeds straight into handling reliability and downstream yield. A worn or contaminated shoe rarely fails dramatically; instead it degrades quietly until placement errors or particle counts cross a threshold. The consequences include:
The most common degradation is gradual abrasion of the angled contact face. Thousands of seating cycles slowly round the 30 degree lip into a flat, raising the wafer and shifting its position. Once the geometry has worn beyond tolerance, placement repeatability falls and the shoe must be replaced.
Repeated contact can transfer residue onto the PEEK surface, where it builds into a glazed or contaminated layer. This raises particle adders on subsequent wafers and can change the friction coefficient, reducing grip security even though the part looks dimensionally intact.
A mis-handled wafer, collision or improperly torqued fastener can chip, crack or loosen the shoe on the blade. A loose or cracked shoe immediately compromises seating accuracy and can introduce debris, so any such damage warrants prompt replacement rather than continued operation.
Replacement is a straightforward mechanical task but demands cleanroom discipline and care with the delicate contact geometry. Always follow the OEM service procedure and your site safety and lock-out requirements. A typical sequence is:
Wafer-contact shoes are classic proactive-replacement consumables: low unit cost, high consequence if neglected. Keeping qualified spares on the shelf lets maintenance teams swap them on a schedule rather than reacting to a handling crash. ESCT Fab Support helps fabs sustain ageing 200mm implanters with:
It is the PEEK contact pad on the wafer-handling robot blade that touches and supports a 200mm wafer during transfer. Its angled edge cradles the wafer bevel, holding it in a repeatable position as the robot moves it between cassette, load-lock, orienter and process station.
No. This shoe is supplied as a new, OEM-compatible component verified to match the form, fit and function of OEM P/N 0040-97187. It is not an original Applied Materials branded part, but it is designed as a direct replacement for the equivalent part on Quantum and xR-class implanters.
PEEK is a low-particulate, dimensionally stable, vacuum-compatible polymer that is softer than silicon. This lets it grip the wafer edge securely without chipping the substrate, while resisting wear, heat and chemicals far better than ordinary plastics. It also electrically isolates the wafer from the metal blade.
The 3mm refers to the width of the wafer-edge contact band, and the 30 degree is the angle of the contact face. The angle is shaped to match the chamfer of a 200mm wafer edge so the wafer self-seats into the correct position when lifted.
Watch for rising placement or hand-off errors, increased edge or backside particle counts, visible flat-spotting or glazing of the contact face, or any wafer slip during fast moves. Most fabs also replace shoes on a preventive schedule because they are inexpensive relative to the cost of a handling fault.
The standard lead time is approximately 1.5 months. Because this is a low-cost, high-impact wear item, we recommend holding spares on the shelf so a worn shoe can be swapped immediately without waiting on resupply.
The PEEK Edge-Contact Pick-Up Shoe (OEM P/N 0040-97187, ESCT P/N ES3033-085) is the small but critical wafer-contact element on the handling robot blade of AMAT Quantum and xR-class 200mm ion implanters. Its 3mm edge band and 30 degree angled PEEK face seat each wafer in a repeatable position while minimising particles and protecting the substrate. Worn or contaminated shoes quietly erode placement accuracy and yield, so they are best managed as proactively replaced consumables. ESCT Fab Support supplies this component verified to original form, fit and function, catalogued against both part numbers, to keep legacy implanters running reliably.
Disclaimer: This part is supplied by ESCT Fab Support as a new, OEM-compatible second-source component, verified to the form, fit and function of Applied Materials part number 0040-97187. It is not an original OEM part and is not sold as one. It is not manufactured by, endorsed by, or affiliated with Applied Materials, and all manufacturer names and part numbers are quoted for identification and compatibility purposes only.
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