OEM P/N:
ESCT P/N:
PART TYPE:
OEM:
The Paddle Lifter is a precision mechanical motion assembly used within LAM Research process platforms to raise, lower and present the wafer-carrying paddle (the end-effector blade or boat support) during load, transfer and unload sequences. In semiconductor fabrication, the paddle is the rigid member that physically supports one or more wafers as they move between atmospheric handling, a load-lock, and the process chamber. The lifter is the actuated sub-assembly that controls the vertical position of that paddle, setting it down onto support pins, lifting it clear for the robot to index, or holding it at a defined process height with repeatable accuracy.
Because the paddle lifter sits directly in the wafer travel path, its mechanical health has an outsized influence on handling reliability. A lifter that hesitates, binds or loses positional repeatability can scrape a wafer edge, mis-seat the paddle, or trigger a transfer fault that halts the tool. In a fab where every minute of unplanned downtime carries a measurable cost, a worn or failing lifter is rarely an isolated nuisance, it is a throughput and yield risk that propagates across the cluster.
This component, carried by ESCT Fab Support under part number ES2022-024 and cross-referenced to LAM OEM P/N 853-032776-002, is supplied as a verified replacement for the original LAM paddle lift assembly. It is built and tested to match the original in mounting interface, stroke, load capacity and motion behaviour, allowing maintenance teams to restore handling integrity without a full module rebuild.
Within the load-lock and transfer architecture of a LAM tool, the paddle lifter performs the controlled vertical actuation that hands the wafer paddle between the robot end-effector and the chamber or cassette support features. It must do so smoothly, repeatably and without particle generation, often under vacuum or in a reduced-pressure environment. Its principal duties include the following.
The defining performance characteristic of a paddle lifter is smooth, repeatable vertical travel. The assembly typically combines a guided linear element, a precision shaft, linear bearing or guide rail, with an actuator such as a lead screw, cam or pneumatic cylinder. Low friction, minimal backlash and tight guide tolerances allow the paddle to arrive at the same height every cycle, which is what keeps wafer hand-off consistent. Any stick-slip, lateral play or drift in this motion path translates directly into transfer faults and edge contact.
The lifter must carry the combined mass of the paddle, its support hardware and the wafer (or wafer batch) without flexing or sagging across the full stroke. Structural members are commonly machined from anodised aluminium or stainless steel to balance stiffness, mass and corrosion resistance in process-adjacent environments. A rigid load path keeps the paddle level, which is critical for even wafer support and clean seating onto the pins or shelf.
A healthy paddle lifter is invisible, it simply lets wafers move on schedule. A degraded one announces itself through faults, particles and scrap. The consequences of a marginal or failing lift assembly include the following.
High cycle counts gradually wear the linear bearings, bushings and guide surfaces. As clearances open up, the paddle develops lateral play and the motion becomes notchy or noisy. Worn guides are a leading source of particle generation and the loss of the repeatable seating height the controller depends on.
The actuating element, lead screw, cam follower or pneumatic cylinder, suffers from lubricant breakdown, contamination ingress and mechanical fatigue. The symptom is stick-slip motion, increased drive effort, hesitation at the travel ends, or outright binding that stalls the lift mid-stroke and trips a fault.
End-of-travel and home sensing relies on flags, switches or sensors mounted to the assembly. Misalignment from wear, vibration or thermal cycling, or a degraded sensor, causes the controller to lose confidence in the paddle position, producing intermittent faults that are easily misattributed to the robot or chamber rather than the lifter itself.
Replacement should be carried out by a qualified equipment technician following the relevant LAM service procedures and your site safety protocols. The general sequence is as follows.
Wafer-handling motion components such as the paddle lifter are classic candidates for proactive spares planning: they wear predictably with cycle count, they fail at inconvenient moments, and their failure stops production. Sourcing a verified replacement through ESCT Fab Support gives maintenance teams a practical alternative to long OEM lead times and rebuild kits.
It is the mechanical assembly that raises and lowers the wafer-carrying paddle during transfer, presenting it to the robot, the support pins or the chamber at a repeatable height. It controls the vertical hand-off of the wafer within the load-lock and transfer path.
No. This is not an original OEM part. It is supplied by ESCT Fab Support as an OEM-compatible replacement, cross-referenced to LAM P/N 853-032776-002 and verified to match the original in form, fit and function.
Typical warning signs include intermittent transfer faults, hesitant or notchy vertical motion, audible noise or binding, rising particle counts, and the controller losing confidence in the paddle home or seated position. These often appear gradually as bearings and the drive element wear.
It is built to the original LAM mounting interface, stroke and load characteristics so it installs in the original footprint. As with any handling component, the home, seated and transfer positions should be verified or re-taught after fitting to confirm correct operation.
The typical lead time for this part is approximately 3 weeks. We recommend holding a unit as a planned spare so that a worn lifter can be swapped on a scheduled maintenance window rather than during unplanned downtime.
Piecemeal repair is sometimes possible, but on a precision lift assembly it is often faster and more reliable to fit a complete, verified replacement. A full assembly restores guide tolerances, drive condition and sensing alignment together, avoiding the repeatability problems that come from mixing new and worn elements.
The Paddle Lifter (LAM OEM P/N 853-032776-002, ESCT P/N ES2022-024) is a precision vertical-motion assembly that raises, lowers and presents the wafer paddle within LAM wafer-handling systems. Its smoothness, load rigidity and positional repeatability directly govern transfer reliability, particle performance and yield. Because it wears predictably with cycle count and its failure stops the tool, it is an ideal planned spare. ESCT Fab Support offers it as a form, fit and function replacement with technical support and a typical 3-week lead time, helping fabs restore handling integrity without OEM-level cost or delay.
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 Lam Research part number 853-032776-002. It is not an original OEM part and is not sold as one. It is not manufactured by, endorsed by, or affiliated with Lam Research, and all manufacturer names and part numbers are quoted for identification and compatibility purposes only.
Fill out the form below to request a quote for the part/s you require, making sure to include the OEM part number.
If the part you are looking for is not listed, get in touch and we will try to source it for you through our wide network of partners and suppliers.
We use cookies We use analytics cookies to see how visitors use this site, so we can improve it. They are set only if you accept. Read our Cookie Policy.
