OEM P/N:
ESCT P/N:
PART TYPE:
OEM:
The Spin Power Supply Unit identified by Applied Materials part number 0090-91122 is a regulated DC power supply that energises the spin, or rotational, drive within an AMAT ion implantation platform. In Quantum and xR-class implanters, controlled rotation is fundamental to dose uniformity: the wafer or the disc-shaped spinning end station must turn at a precisely governed angular velocity while the ion beam sweeps across it. This PSU is the dedicated electrical source that converts incoming facility or cabinet bus power into the conditioned, stabilised output that feeds the spin motor and its associated servo or commutation electronics.
Physically, the unit is a rack- or chassis-mounted electronic module sitting within the implanter’s power and control bay, wired between the upstream distribution and the downstream motor drive. It is not a passive transformer block; it is an actively regulated supply whose output must remain steady across line transients, load swings during acceleration and braking, and the thermal drift of a continuously running fab tool. Because spin speed couples directly into implant dose and angular distribution, the quality of this supply’s output is a yield-relevant parameter rather than a mere housekeeping detail.
When the Spin PSU degrades, the symptoms rarely announce themselves as a clean power fault. Instead they surface as rotation instability, speed faults logged by the motion controller, or subtle non-uniformity that only metrology catches downstream. Understanding where this part sits, and how it fails, therefore keeps an implanter producing in-spec wafers.
The Spin PSU exists to deliver clean, regulated electrical energy to the rotational drive and to hold that energy steady irrespective of mechanical demand. Within the broader scan and control architecture of the tool, it performs several distinct functions:
As an actively regulated supply driving a dynamic mechanical load, the performance of 0090-91122 is judged primarily on the stability and cleanliness of its output under real operating conditions.
The supply must hold its set-point voltage within a narrow band while the spin load steps between idle, acceleration, constant speed and braking. Tight line and load regulation, low output ripple and a fast transient recovery are what keep rotation smooth and repeatable.
Behind the regulation sits the protective and filtering layer: input rectification, bulk and decoupling capacitance, current limiting and over-temperature shutdown. These elements determine whether the supply survives the thermal and electrical stress of continuous fab duty.
Because rotational speed is a direct input to implant dose distribution, the condition of the Spin PSU ripples straight through to wafer-level results and tool availability:
Electrolytic capacitors dry out over years of thermal cycling, losing capacitance and gaining equivalent series resistance. The first symptom is rising output ripple and softening transient response, which the servo loop perceives as speed instability long before the supply fails outright.
Regulator transistors, rectifier diodes and their solder joints accumulate thermal fatigue. A clogged filter, failing fan or degraded thermal interface pushes junctions past rating, leading to intermittent dropouts under load and eventually a dead rail or an over-temperature shutdown.
Repeated spin-up surges and braking transients stress fuses, current-limit circuitry and output connectors. Oxidised or loosened terminals introduce voltage drops and arcing that masquerade as motor or controller faults, making the PSU an easily overlooked root cause.
Replacement should follow AMAT service procedures and be carried out only by qualified personnel working to the tool’s lockout and electrical-safety requirements. A typical sequence is:
Holding a tested Spin PSU on the shelf protects against the long, unpredictable downtime that follows a power-supply failure on a mature implanter. ESCT Fab Support offers ES3033-156 as a practical sparing option with the following advantages:
It supplies regulated DC to the spin, or rotational, drive of the implanter’s end station, the motor and drive electronics that turn the wafer or spinning disc at controlled speed while the ion beam is applied.
No. ES3033-156 is supplied as an OEM-compatible replacement cross-referenced to AMAT P/N 0090-91122 and verified to form, fit and function. It is not an original OEM part and is not sold as one.
Measure the supply’s output for correct voltage, excessive ripple and sag during spin-up. If the rail wanders or dips under load while the motor and controller test good, the power supply is the likely root cause.
Rotational speed is a direct input to implant dose distribution. If the supply cannot hold a steady rail, spin speed drifts, and that drift translates into dose and angular non-uniformity that metrology detects downstream.
The module itself is a like-for-like swap, but after fitting you should verify output voltage and ripple, run the tool’s rotation diagnostics and confirm a stable spin-up and brake cycle before returning the implanter to production.
Yes. Power supplies fail with little warning, and lead times on legacy implanter modules can be long. A shelf spare converts a multi-day outage into a short planned replacement.
The Spin Power Supply Unit, AMAT P/N 0090-91122, is the regulated DC source behind controlled rotation in Applied Materials Quantum and xR-class ion implanters. Its output stability feeds directly into spin-speed accuracy and therefore into dose uniformity and yield, while its most common failures (capacitor ageing, thermal breakdown and surge-related faults) tend to appear first as elusive speed instability rather than a clean dead rail. ESCT P/N ES3033-156 offers a verified, cost-effective replacement that keeps these mature tools running with minimal downtime.
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 0090-91122. 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.
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.
