
Claude Skills by ashfordeOU
github.com/ashfordeOUUse when scoping or reviewing a cell assembly flatness campaign. Determine whether a flatness measurement on a completed solar cell assembly serves the purpose ECSS-E-ST-20-08C clause 6.4.3.17.1 gives it, showing how flat the assembly is before integration: map each declared integration step onto the flatness objective the measurement demonstrates, accumulate those sensitivities into one integration demand, decide whether the mounting route and that demand earn the measurement at all, then co...
Use when a front contact has been inspected and the result needs grading. Evaluate whether the front contact metallisation of a solar cell assembly is free of interruptions and delamination under ECSS-E-ST-20-08C clause 6.4.3.1.7: walk each gridline and busbar out from its feed point, work out what metallisation is still tied to a terminal once a break is placed, roll the orphaned gridlines up into the current collection the cell has lost, add the delaminated metallisation the clause permits ...
Evaluate whether a shipment of ordered solar cell assemblies may be released under ECSS-E-ST-20-08C clause 6.7, where the hardware and the clause 6.6 documentation package have to close together. Use when a delivery is presented for dispatch: confirm the package is released and hold any unit drawn from a lot it does not cover, disposition each assembly as shippable, shippable on an accepted concession or held, reconcile each order line short and over against its ordered count, apply the decla...
Use when accepting or auditing a subgroup humidity exposure. Verify that every sample of a solar cell assembly subgroup was actually held inside the chamber, at ambient pressure, for the humidity exposure period of ECSS-E-ST-20-08C clause 6.4.3.8.2: reduce the chamber pressure record to the intervals that held the ambient band, credit a sample only where its own time in the chamber overlaps one of them, refuse to credit time the record never observed, compare each sample with the required per...
Use when scoping or reviewing an accelerated shelf-life humidity exposure on a solar cell assembly. Evaluate whether an accelerated shelf-life humidity exposure on a solar cell assembly is earned, represents the required storage life and actually watches the conductive coverglass coating, under ECSS-E-ST-20-08C clause 6.4.3.8.1: compute the factor by which the planned damp-air conditions accelerate the declared storage environment, convert the run into the storage months it is worth, refuse a...
Audit the permanent coding of delivered cell assemblies against the traceability depth the process document sets, under ECSS-E-ST-20-08C clause 6.1.4. Use when a delivery register has to show each assembly stays identifiable after it is bonded into a panel: judge whether the marking survives the processing the assembly will see, read the depth the code fields and the register actually reach, compare it with the depth the process document demands, detect a code repeated across the delivered se...
Use when an SCA process identification document, production control baseline or process qualification list has to be reviewed. Assess the supplier process identification document that clause 6.2 of ECSS-E-ST-20-08C asks for before a solar cell assembly is qualified: hold the processes the assembly is actually built with against the set the document declares, check each declared process names the production document that controls it, confirm every control parameter carries a tolerance band tha...
Use when a lot qualification status list, supplier procurement record or heritage justification has to be assessed. Verify the clause 6.4.1 requirement of ECSS-E-ST-20-08C that every procurement lot of cell assemblies is qualified in its own right: resolve the evidence each lot declares, hold a campaign to coupons drawn from that same lot, close the required activity set on enough of them, test any heritage claim against the configuration it leans on, and roll the procurement up into one verd...
Use when a qualification flow chart, coupon batch sizing or test sequence plan has to be assessed. Validate the production and test schedule of clause 6.4.2 of ECSS-E-ST-20-08C followed when qualifying a cell assembly design: confirm every production, test and documentation step is declared, hold each step behind the steps it depends on rather than merely present somewhere in the list, walk the coupon batch through the declared order to the step that empties it, and rank the findings into one...
Use when a rear contact has been inspected and the deposits outside the welding area need grading. Assess the drops and spatter found outside the rear welding area of a solar cell assembly against the size allowed for their kind, under ECSS-E-ST-20-08C clause 6.4.3.1.8: place each deposit by its own footprint rather than by its centre, so one reaching across a welding boundary is graded as the outside deposit it partly is, compare diameter and standoff height with the allowance for a drop or ...
Use when a cell body has been examined and the chip record needs a disposition, remembering that silicon cannot be put back. Evaluate the chips and nicks recorded on a solar cell body against the position and size allowances of ECSS-E-ST-20-08C clause 6.4.3.1.4: resolve a corner break onto the axis it eats into, measure every break against the inactive border between the cell edge and the active area, tighten the position allowance where the break goes through the wafer, grade the footprint a...
Use when a pre-irradiation data sheet, reference cell comparison record or irradiation campaign baseline has to be assessed. Evaluate the pre-irradiation short circuit current baseline that clause 6.4.3.5.2 of ECSS-E-ST-20-08C asks for on solar cell assemblies: confirm the reference device is traceable and inside its calibration interval, hold the bench irradiance and temperature to the window a correction stays valid in, translate every sample reading back to reference conditions, express it...
Use when spectral response data is about to justify a sun simulator or an error calculation. Verify a sun simulator against the reference spectrum using solar cell assembly spectral response data, and carry the result into the current measurement error budget as ECSS-E-ST-20-08C clause 6.4.3.5.1 intends: check all four curves cover the response band on one wavelength grid at a fine enough step, combine the reference and simulator spectra with the test and reference cell responses into the spe...
Verify that every test declared for a solar cell assembly is aligned with its cell assembly source control drawing under ECSS-E-ST-20-08C clause 6.1.2. Use when a cell assembly test matrix, acceptance procedure or laboratory report has to stand as drawing-traceable evidence: resolve whether the method is drawing-named, drawing-invoked, an approved equivalent or a house procedure; guard-band each declared condition by the uncertainty of the instrument that recorded it; rank the conditions by t...
Use when an SCA test matrix, campaign plan or coupon allocation has to be assessed. Plan the solar cell assembly test programme of clause 6.1.1 of ECSS-E-ST-20-08C, where acceptance and qualification activities run as one campaign: hold each declared activity to the category it owes, check the specimen it runs on against that category, size the sample against the policy minimum, measure programme coverage and the qualification share, and return one programme verdict. Trigger: ecss, e-st-20-08...
Use when auditing the execution of a solar cell assembly thermal cycling test. Verify that a solar cell assembly thermal cycling run was executed to the cycle count and temperature extremes its own control drawing fixes, under ECSS-E-ST-20-08C clause 6.4.3.7.2: validate the drawing record is complete and its extremes ordered, build the hot and cold acceptance bands its tolerance gives, walk the recorded cycles and credit one only when both extremes were reached and each dwell held, separate a...
Use when scoping or reviewing the purpose of a solar cell assembly thermal cycling test. Assess whether a solar cell assembly thermal cycling test is earned and whether it represents one year of orbital eclipses under ECSS-E-ST-20-08C clause 6.4.3.7.1: derive the eclipse-driven cycles a year of the declared orbit imposes and the hot-to-cold swing each one drives, group the assembly features that carry a thermal-fatigue failure mode into the reliability objectives the cycling demonstrates, the...
Use when a thermo optical acceptance record, drawing limit sheet or lot disposition summary has to be assessed. Verify the thermo optical acceptance limits of clause 6.4.3.6.3 of ECSS-E-ST-20-08C against the cell assembly control drawing that governs them: resolve whether each limit is drawing-stated, drawing-invoked or a house default nobody sanctioned, check the drawing revision the limits were read from against the revision the lot was built to, guard band every measured absorptance, emitt...
Use when a thermo optical data sheet, integrating sphere record or emissometer log has to be assessed. Compute the solar absorptance and hemispherical emittance that clause 6.4.3.6.2 of ECSS-E-ST-20-08C asks to be measured on the designated subgroup of cell assemblies: reconcile the samples actually measured against the subgroup the plan designated, weight the measured reflectance bands into an absorptance and an emittance, derive the absorptance to emittance ratio, hold repeat scans inside t...
Use when a nonconforming cell assembly is being argued for use as is. Assess a requested departure from the solar cell assembly visible defect rules under ECSS-E-ST-20-08C clause 6.4.3.1.3: refuse one aimed at a criterion that carries no allowance, size the exceedance against the criterion it leaves behind, weigh the predicted performance debit against a single-departure allowance, score the evidence the case rests on before it reaches a customer at all, gate every surviving request on record...
Use when an inspection setup must be shown adequate before its defect calls are trusted. Evaluate whether the equipment and the viewing approach used to examine solar cell assemblies can resolve the defects the criteria name, under ECSS-E-ST-20-08C clause 6.4.3.1.2: derive the resolved feature from acuity and working distance for a visual station or from field of view and sensor sampling for an imaging one, grow it by the foreshortening an off-normal viewing angle imposes, compare that agains...
Use when a shunt diode forward-voltage test has to be set up, sentenced or repeated. Determine the forward voltage each shunt diode drops while the string it protects is driven backwards, under ECSS-E-ST-20-08C clause 5.5.3.3.7: check the forced drive reaches the worst-case string current the diode exists to carry, refer every measured drop to the reference junction temperature with the declared coefficient, group each part as conducting, suspect-shorted, suspect-degraded or open-circuit from...
Use when acquisition-interval steadiness has to be shown before a current-voltage measurement is trusted, or an as-run monitor trace has to be judged. Evaluate how steadily a solar simulator holds irradiance across each data acquisition interval under ECSS-E-ST-20-08C clause 10.1.3: validate the run and its declared windows, refuse a window the monitor never watched densely enough to describe, take the temporal instability inside every window separately from the extreme readings, hold each on...
Use when a simulator test plane is being mapped, or an existing map has to be judged before a performance measurement is trusted. Evaluate how evenly a solar simulator spreads irradiance over the nominated test plane under ECSS-E-ST-20-08C clause 10.1.2: validate the declared plane and the sampling policy, refuse a grid too sparse or one bunched over part of the plane only, take the spatial non-uniformity between the extreme readings rather than as a scatter about the mean, name the brightest...
Use when a simulator spectrum record has to be graded before test data is credited. Verify that a solar simulator's output follows the air mass zero reference spectrum closely enough to credit a measurement made under it, per ECSS-E-ST-20-08C clause 10.1.1: integrate both curves band by band with the edges interpolated onto the samples, compare each band's share of its own total rather than raw irradiance, grade every band inside a nested limit table and take the worst band as the result rath...
Determine whether a planned electrostatic-discharge test on a solar-array coupon can show what ECSS-E-ST-20-08C clause 5.5.1.5.1 asks of it: that the design rules applied to the array hold the discharge risk down. Use when a coupon campaign is scoped or reviewed before it runs: derive from the declared environment which discharge mechanisms the coupon can really be driven into, group design-rule provisions by the mechanism each limits, keeping only those embodied on the coupon, check the plan...
Use when a solar-array requirement set must be shown to serve the aims of the standard rather than merely to exist. Trace the aims of the solar array standard of ECSS-E-ST-20-08C clause 4.1.1 into the project requirement tree and grade how the flow down is organised: confirm every objective area the standard declares owns a requirement at the system tier, follow each lower requirement to a live parent one tier above it in the same area, report each broken link by kind, name the aims stated at...
Use when a coupon adherence campaign has to be accepted, sentenced or repeated. Compute the adherence of bonded cell assemblies to the panel substrate from process-coupon data under ECSS-E-ST-20-08C clause 5.3.3.11.1: compare each coupon build record against the panel bondline and set aside any coupon that does not share facesheet, adhesive designation, adhesive lot, cure profile, cell assembly and bonding tool; reduce each coupon to a separation stress and a separation mode; carry a faceshee...
Use when an assembly drawing package is offered for release and the joints between its layers have to be controlled, not merely drawn. Assess the source control drawing covering a solar cell assembly against the content Annex B of ECSS-E-ST-20-08C calls for: read the stack outer face inward, derive the bonded joint between each adjacent pair, and require exactly one bond control per joint naming agent, thickness and area coverage; identify each terminal polarity once and marked; and resolve e...
Use when an attachment qualification record has to be sentenced. Verify that bonded cell assemblies stay attached to the panel through the whole test sequence and on to mission life under ECSS-E-ST-20-08C clause 5.3.3.11.2: anchor every later measurement to the as-bonded reference, walk the humidity, solar-array-thermal-cycling, vibration, acoustic and thermal-vacuum stages in order, hold both an overall retention floor and a per-stage drop allowance so one punishing environment cannot hide i...
Use when a damp heat chamber profile for solar cells is written or reviewed before the soak starts. Verify a subgroup O damp conditioning profile against ECSS-E-ST-20-08C clause 7.5.7.1.2: confirm the cell count actually drawn from subgroup O, hold the chamber at ambient pressure inside its tolerance, derive the dew point the air temperature and relative humidity produce and keep the coldest cell surface above it, hold the ramp rate and the stabilisation dwell, and confirm the soak reaches it...
Use when scoping or defending a solar cell damp heat storage before the chamber is booked. Determine what an accelerated damp storage of solar cells under ECSS-E-ST-20-08C clause 7.5.7.1.1 has to deliver: group the mechanisms damp heat attacks, contact adhesion, antireflective coating, integrated bypass diode leakage and interconnect corrosion, onto the parameter each is watched through, size the humidity and temperature acceleration the chamber buys, convert the soak into the ambient storage...
Use when a reverse bias run on bare cells has to be sentenced. Assess a bare solar cell for output degradation after it has been driven into reverse polarity under ECSS-E-ST-20-08C clause 7.5.16: confirm the declared reverse current was really forced and held for its dwell, separate a run the supply clamped at its compliance voltage from one the cell itself carried, compute the heat the reversed cell dissipated against the hot-spot cap, take the fall in maximum power, short-circuit current an...
Use when a coupon has been examined and the counts need grading. Screen the solar cells of an inspected coupon against the defect quantity limits of ECSS-E-ST-20-08C clause 5.5.3.2.8: tally every observation by kind on each cell, compute how many cells across the coupon carry each kind, and disposition the result on how often a defect turned up rather than on how large it was — a per-cell allowance for every kind, a coupon-wide affected-cell fraction, a total across all kinds that catches the...
Use when a simulator's upkeep record must be shown before an array measurement is accepted. Assess whether a solar simulator is still fit for measurement under ECSS-E-ST-20-08C clause 10.2.6, where routine calibration and upkeep keep the beam usable: grade the spatial non-uniformity, the temporal instability and the spectral match band by band, take the worst of the three as the beam grade, weigh lamp hours run against the rated life and days elapsed since the reference-cell setting, then set...
Use when string terminations have been examined and the solder record needs a defensible disposition. Assess the solder joints at a solar-array string termination against the workmanship standard agreed with the customer under ECSS-E-ST-20-08C clause 5.5.3.2.13: refuse to disposition anything until the agreement is named, issued, customer-approved and already in force on the inspection date, then take each joint's wetting angle, fillet coverage fraction and void area fraction against the figu...
Use when a standard cell record must be shown fit to support another calibration. Assess the data sheet a standard solar cell is delivered with under ECSS-E-ST-20-08C clause 10.2.3, grading identification, calibration and uncertainty budget as three blocks rather than one list: name every required field the sheet leaves unreported, keep a reported zero apart from an empty box, reduce each budget component by its distribution and sensitivity, recompute the combined and expanded uncertainty fro...
Use when a standard cell must be shown fit before it calibrates anything. Audit the thermal custody record of a primary or working solar-array standard cell under ECSS-E-ST-20-08C clause 10.2.4, where the cell stays below fifty degrees Celsius in operation and in storage alike: take every logged reading with its sensor uncertainty, treat a reading whose uncertainty band reaches past the ceiling as indeterminate rather than compliant, size each excursion in degree-minutes above the ceiling ins...
Use when a standard's recalibration or cross-comparison status gates an array measurement. Determine whether a solar-array reference standard is still fit under ECSS-E-ST-20-08C clause 10.2.5, where recalibration and cross comparison run at intervals agreed with the customer: count the days elapsed against each agreed interval, size the deviation a working standard shows against the primary, fit a drift rate across past cross comparisons, project the day that drift carries the deviation onto ...
Use when handling, test or storage conditions for an array must be shown to have stayed in band. Audit the ambient pressure, temperature and relative humidity a room held while solar-array hardware was inspected, tested or stored briefly under ECSS-E-ST-20-08C clause 4.3.1: take the band the declared activity owes, size every reading that leaves it per parameter and per bound, weight the out-of-band dwell by logged time instead of reading count, compute the room dew point and the margin the c...
Use when a cycled coupon substrate has been surveyed and the record has to stand up. Assess the structural integrity of a photovoltaic-assembly coupon substrate once its thermal cycling is credited, under ECSS-E-ST-20-08C clause 5.5.3.10.1: refuse a survey run before the cycling completes or inside the post-chamber stabilisation period, flag one left past the recording window, test every substrate zone against the methods that can actually see its failure modes and the corroboration a subsurf...
Use when dispositioning a cycled coupon substrate. Determine whether a thermally cycled coupon substrate meets the integrity thresholds the assembly control drawing declares, under ECSS-E-ST-20-08C clause 5.5.3.10.2: refuse a drawing carrying no revision and a coupon graded on a revision it was not measured to, read each limit with its units and its direction of merit so a floor failure cannot pass as a ceiling, express every result as a margin fraction, report an indication landing exactly o...
Use when a panel substrate has been examined and the record needs a defensible disposition. Evaluate a solar-array substrate for damage left by assembly, handling or test operations under ECSS-E-ST-20-08C clause 5.5.3.2.5: categorize each indication as a facesheet scratch, dent or puncture, honeycomb core crush, facesheet-core disbond, insulation-layer tear, edge close-out damage or insert damage, measure its depth against the facesheet thickness and its damaged area, tighten every limit wher...
Verify the instrument precision each controlled or measured solar-array test parameter demands, anchored at ECSS-E-ST-20-08C clause 4.3.2. Use when a photovoltaic-assembly test plan has to name its instrumentation: derive the governing tolerance half-band from the declared two-sided, asymmetric or one-sided limits, compute the largest instrument uncertainty that half-band will carry, restate it as a test-accuracy-ratio, check the reading resolution and the set-point drift a controlled paramet...
Use when a campaign is about to be cycled in atmosphere because the vacuum chamber was busy. Assess whether an acceptance thermal cycling run on a photovoltaic assembly holds to the vacuum environment ECSS-E-ST-20-08C clause 5.5.3.7.2 prefers, and size what a gas fill changes when it does not: name the environment from the chamber pressure, derive the molecular mean free path and the Knudsen number against the gap the heat crosses, group the conduction regime, measure the cold dwell against t...
Use when planning or auditing an acceptance cycling run on photovoltaic-assembly coupons. Perform the acceptance thermal-cycle exposure of solar-array coupons under ECSS-E-ST-20-08C clause 5.5.3.7.3: resolve the acceptance cycle count from the referenced testing standard and the coupon category instead of deriving one locally, refuse a declared count that falls below that reference, record an overtest that runs past it, credit each coupon only with the cycles that survived its interruptions, ...
Use when an acceptance campaign is about to be signed off as a screen it may be too shallow or too long to be. Evaluate whether an acceptance thermal cycling run on a photovoltaic assembly serves the two purposes ECSS-E-ST-20-08C clause 5.5.3.7.1 gives it, revealing infant mortality and confirming supplier workmanship: hold the cycle count, the range and the dwell soak above the depth a screen needs, convert the run into qualification-equivalent damage and cap the demonstrated fatigue life it...
Verify that the continuity evidence taken across a solar-array thermal-cycling run really shows the cells and the wiring conducting from the first cycle to the last, anchored at ECSS-E-ST-20-08C clause 5.5.1.3.2. Use when the task is judging or planning that evidence: validate each monitored channel's baseline and checkpoint readings, measure the resistance drift against the allowed fraction, detect an open standing at the end of the run and an intermittent open that closed again before the n...
Use when accepting or rejecting a cycled solar-array coupon. Verify that a thermally cycled photovoltaic-assembly coupon meets its acceptance criteria under ECSS-E-ST-20-08C clause 5.5.1.3.5: bring the pre-cycling and post-cycling output-power readings to the same reference irradiance and cell temperature before comparing them, form the retention ratio against the declared threshold, compute the series-resistance drift of the string, treat a non-conducting string as an open circuit rather tha...
Record and check the definition of the coupon a solar-array thermal-cycling run is performed on, anchored at ECSS-E-ST-20-08C clause 5.5.1.3.3. Use when the task is establishing or reviewing that definition: build the coupon register, require every feature family the assembly needs - cell, interconnect, coverglass, adhesive, substrate and wiring termination - to be declared, resolve each entry to a drawing reference or a definition-matrix cell and refuse a free-text note that is neither, grou...