
Claude Skills by ashfordeOU
github.com/ashfordeOUDetermine which rule set governs coverglass packing, dispatch, handling and storage under ECSS-E-ST-20-08C clause 8.11. Use when one of those four activities has to be traced to the referenced product assurance standard: resolve the reference each activity declares, demote an unapproved project tailoring, hold a product assurance reference cited at a superseded issue, ask packing and handling for the measure keeping one coated face off the next, and measure declared storage temperature, humid...
Use when a coverglass production control document, deposition process baseline or qualification evidence list has to be reviewed. Review the supplier process identification document that clause 8.4 of ECSS-E-ST-20-08C asks for before coverglass production is qualified: hold the processes the glass is genuinely made by against the set the document declares, check each declared process names the production document controlling it, confirm every control parameter carries a band that brackets its...
Verify that a proton irradiation matrix ages both the coverglass substrate and the coatings on it per ECSS-E-ST-20-08C clause 8.7.14. Use when a coverglass proton exposure matrix is built or its results dispositioned: convert each energy line into a stopping depth, group the lines by whether their protons rest in the coating, in the glass or clean through it, refuse a matrix that leaves either layer unexposed, hold every line under the flux cap, reduce each line's band transmittance to an opt...
Use when a coverglass type is about to be supplied as qualified. Determine whether a coverglass type may be supplied at all under ECSS-E-ST-20-08C clause 8.6.1, where the customer grants qualification status and the supplier only produces the evidence for it: find the shipment leaving with no grant on record, refuse a grant the supplier issued about its own product, match the granted scope to the material, coating and thickness actually being shipped, reject a grant dated after the supply it ...
Use when a coverglass qualification plan, campaign window or dated test sequence has to be assessed. Validate the dated production and test schedule a coverglass qualification campaign runs on under ECSS-E-ST-20-08C clause 8.6.2: refuse an undated, repeated or unknown step, name the required step nobody declared, hold a step whose planned start falls before the end of the step it depends on rather than merely later in the list, catch an exposure compressed below its minimum dwell, walk the ca...
Use when coverglass surfaces have been examined and each needs a disposition. Evaluate the scratches and digs on a solar-cell coverglass against the largest sizes its source control drawing fixes, under ECSS-E-ST-20-08C clause 8.7.1.3.2: read the drawing designation into a scratch grade and a dig grade, refuse to grade a part with no drawing or a superseded revision, convert each measured width and diameter into a grade through the declared units, hold back features in the edge exclusion band...
Use when a coverglass source control drawing or coating procurement content review is on the table. Audit the source control drawing a coated coverglass is bought against, the content set ECSS-E-ST-20-08C Annex D expects fixed before order: name the heading the drawing leaves silent, test every dimension for a band that brackets its nominal and is drawn tightly enough to control the part, check the transmission window runs cut-on to cut-off and is wide enough to be a window, confirm the coati...
Use when a coverglass delivery has been examined for soiling and each item needs a dispositioned cleanliness verdict. Assess every delivered coverglass against the surface cleanliness requirement of ECSS-E-ST-20-08C clause 8.7.1.3.7: screen both optical surfaces for particulate, film, fingerprint and staining deposits, compute the permanent obscured-area fraction and the oversize particle count per surface, separate removable soiling from contamination that survives a clean, disposition each ...
Use when a coated coverglass lot is offered with no surface resistivity record. Determine whether a coverglass build obliges the resistivity measurement of ECSS-E-ST-20-08C clause 8.7.7 and whether its record discharges that obligation: decide from the declared coating stack whether a conductive layer forms part of the glass, refuse a layer whose conductivity nobody characterised rather than reading it as insulating, reduce each concentric-ring or four-point site through its geometry factor i...
Use when a coverglass acceptance procedure, test condition table or method reuse justification has to be reviewed. Audit a coverglass acceptance procedure against the method and condition definitions clause 8.5.3 of ECSS-E-ST-20-08C points forward to: follow each activity pointer and report one that resolves to nothing, settle a substituted method before any condition is compared, judge every condition under its own sense so a relaxation and an over-test are told apart, name a condition the p...
Use when a coverglass test matrix or lot sampling plan needs its qualification and procurement halves separated. Map a declared coverglass test matrix onto the two roles ECSS-E-ST-20-08C clause 8.3.1 keeps apart: the tests that carry qualification evidence for a design and a process, and the tests that run as routine lot procurement. Group the declared set against the catalogue, catch a test booked under a role it cannot serve, grade each mandatory set on the fraction actually booked, size th...
Use when a bonded-stack coverglass transmission scan must be reduced and dispositioned. Compute the into-adhesive spectral transmission of a coverglass from a scan taken through a fused-silica or uncoated backing piece bonded behind the sample per ECSS-E-ST-20-08C clause 8.7.9: qualify the backing piece and its bond, check the scan covers the specified band with ascending, closely spaced points and a referenced baseline, divide the backing reference scan out, integrate the band average by tra...
Use when a coverglass transmission scan has been taken into air and the band figure must be derived and dispositioned. Compute the into-air spectral transmission of a coverglass from a spectrophotometer scan per ECSS-E-ST-20-08C clause 8.7.2: check the scan covers the specified wavelength band with strictly ascending, closely enough spaced sample points and a referenced baseline calibration, integrate the band-average transmittance by trapezoid, weight it with a supplied spectral irradiance w...
Assess whether a coverglass coating stays optically stable through accelerated ultraviolet ageing per ECSS-E-ST-20-08C clause 8.7.12. Use when a coverglass ultraviolet exposure run is planned or its data dispositioned: turn lamp setting and exposure hours into equivalent sun hours, refuse an acceleration factor past the reciprocity cap, confirm the chamber held vacuum and the specimen held temperature, check the dark control drifted less than the bench allowance, reduce each band transmittanc...
Use when a coverglassed assembly has been examined and each item needs a screened disposition. Verify every coverglass fitted to a photovoltaic assembly against the assembly defect criteria of ECSS-E-ST-20-08C clause 5.5.3.2.6: compute how much of the active cell area the glass still covers and how much overhang an edge chip has left to work through, then disposition each edge chip, surface scratch, cavity or inclusion, coating blemish, crack and surface deposit as accept, clean-and-reinspect...
Use when crimped terminations have been examined and each one needs a disposition. Evaluate crimped wire terminations against the crimping workmanship standard the customer has accepted, under ECSS-E-ST-20-08C clause 5.5.3.2.15: refuse a standard with no recorded acceptance and a gauge it does not tabulate, compare each measured crimp height with the band for its own gauge, count the strands that reached the barrel against those nicked inside it or brushed outside it, read bell mouth, insulat...
Audit the parts, materials and processes list of a solar array for the critical interface data it owes, anchored at ECSS-E-ST-20-08C clause 4.4. Use when an array declared-materials list is submitted for review: derive from each entry whether it sits at a critical array interface rather than reading a hand-set criticality flag, list the identification data its kind owes and the interface data its criticality adds, screen a bonded non-metallic item against its total-mass-loss and collected-vol...
Use when a planar blocking diode delivery lot, process identification document or traveller set has to be reviewed. Evaluate whether delivered planar blocking diodes were processed and inspected against the process identification document that governs them, under ECSS-E-ST-20-08C clause 12.2.2: resolve which issue was released and in force on the day a lot ran, refuse a lot built to a superseded or still-unreleased issue, grade declared processing and inspection steps separately so a built-bu...
Use when a coverglass delivery lot, route record or inspection dossier has to be released. Audit a coverglass delivery batch by batch against the processing and inspection route clause 8.3.2 of ECSS-E-ST-20-08C fixes in the process document: resolve whether the cited document governs at the issue the glass was built to, name a step run that the document never declares, catch a declared step run out of the declared sequence, separate a per-coverglass screen from a sampled inspection and hold e...
Use when a PVA delivery item list, protection diode item reconciliation or string protection count has to be reviewed. Evaluate whether the integral protection diodes built into a photovoltaic assembly are carried as deliverable items under ECSS-E-ST-20-08C clause 9.2.2: decide from the mounting whether a diode belongs on the assembly item list or on a delivery line of its own, catch the two ways an item is misfiled between them, hold the protection each string architecture requires against t...
Use when a coupon layout has to be judged against the drawing rather than against a defect list. Compute the dimensional, keep-out and standoff checks that ECSS-E-ST-20-08C clause 5.5.3.2.4 folds into the visual inspection of a photovoltaic assembly coupon: place every measured dimension inside its plus and minus drawing band and name the one that governs, build the border bands a reserved edge margin creates, test each placed feature against every stay-out zone for shared area, intrusion dep...
Use when a diode acceptance matrix, lot traveller set or diode sampling plan is under review. Evaluate a protection diode acceptance record against clause 9.4.1 of ECSS-E-ST-20-08C, where two diode populations owe acceptance at once: the parts being delivered and the parts the qualification campaign consumes. Split the per-diode activities from the lot-sampled ones, score each sampled activity on the share of its population actually drawn, hold missing records, unrun work and recorded failure...
Use when a diode current-voltage recording is being set up or an as-run one judged. Design the dark forward and reverse current-voltage recording a protection diode acceptance characterisation runs under ECSS-E-ST-20-08C clause 9.4.5.2.2: refuse a bench whose stray irradiance leaves the diode still photo-responsive, size the supply compliance limit so it clears the highest forward test current yet stays under what the part survives, build the forward and reverse sweep schedules against their ...
Use when an acceptance programme has to justify, size or defend protection diode characterisation. Determine why a photovoltaic assembly protection diode has its electrical performance characterised during acceptance under ECSS-E-ST-20-08C clause 9.4.5.2.1: map each declared protection role to the quantity the characterisation feeds, derive the forward dissipation the worst-case section current puts into the substrate and the parasitic leakage loss the whole fitted population carries for the ...
Use when characterised diode data has to become an acceptance verdict. Assess whether each characterised protection diode meets the limits its source control drawing fixes under ECSS-E-ST-20-08C clause 9.4.5.2.3: refuse a limit set carrying no drawing reference or issue, refer every measured forward voltage to the reference junction temperature with the declared coefficient, judge the referred drop and the reverse leakage against their own drawing limits with a tie admissible, report each mar...
Use when running or auditing a protection diode contact adherence run. Execute the ambient pressure chamber loading every protection diode of a lot passes through before its contacts are pulled under ECSS-E-ST-20-08C clause 9.6.6.2.2: confirm the whole population went in rather than a convenient subset, hold the tray packing cap and terminal clearance that keep the soak reaching each package, check the pressure band and the declared dwell, refuse to sentence a lot from a partial load, then gr...
Use when scoping or defending a protection diode contact adherence campaign. Determine what an attachment strength check on protection diode contacts has to demonstrate under ECSS-E-ST-20-08C clause 9.6.6.2.1: settle first whether the device carries attached contacts at all, because one that carries none is outside the check entirely, fold the downstream welding, cure, handling, launch and cycling stressors into one demand index, map each onto the evidence parameter it is watched through, der...
Use when a protection diode contact adherence run is planned or its records are reviewed. Assess whether the contacts of an external protection diode still hold after the contact adherence test of ECSS-E-ST-20-08C clause 9.6.10, and whether an integral unit with no terminal to grip was covered by a declared equivalent route rather than quietly skipped: validate the adherence policy, read every required contact site, turn each recorded force into a stress over the bonded area it acted on, sent...
Use when a protection diode mark list has to become a contact area verdict. Assess the contact areas of a protection diode for digs, scratches and probe marks under ECSS-E-ST-20-08C clause 9.6.2.5.1: place every recorded mark against the anode and cathode geometry before dispositioning it, charge a straddling mark only the part that overlaps, reject a mark that has bared the semiconductor under a weld land, send thinned metal to review, track the probe witnesses and the clear weld-land fracti...
Use when protection diode contact thickness readings have to become an acceptance record and a lot verdict. Document the metallisation thickness present on each protection diode contact at acceptance under ECSS-E-ST-20-08C clause 9.6.8: refuse a gauge whose resolution cannot split the specified band, refuse a reading whose calibration had lapsed on the measurement day, require the declared replicates and hold their spread inside the repeatability limit, take their mean as the contact figure, ...
Use when a protection diode contact thickness map has to become a qualification uniformity verdict. Evaluate whether the contact metallisation of a protection diode holds an even thickness right across its land under ECSS-E-ST-20-08C clause 9.6.7: confirm the map reached every zone before a spread is quoted, hold the qualification run against its declared sample, take the spread and the variation against each contact's own mean, apply the local floor that an evenly thin deposit still fails, g...
Use when a protection diode void survey has to be sentenced. Evaluate the voids and bubbles recorded on either polarity contact of a protection diode against the quarter-millimetre ceiling of ECSS-E-ST-20-08C clause 9.6.2.5.2: govern each cavity by its maximum extent rather than an area-equivalent diameter that hides an elongated bubble, merge cavities whose edges have closed to within the coalescence gap and re-measure the span across the pair, keep a cavity landing exactly on the ceiling in...
Use when a protection diode electron irradiation run is scoped or its data is audited. Analyze how far an external protection diode drifts as electron fluence accumulates in the accelerated life exposure of ECSS-E-ST-20-08C clause 9.6.12: check the fluence staircase rises and carries an unirradiated reference, confirm every step was measured at the reference temperature, turn each step's forward drop and reverse leakage into ratios against that reference, refuse a ratio that falls back, fit t...
Use when a human body ESD step stress for protection diodes is planned or audited. Assess whether a protection diode survives an electrostatic discharge representative of a charged person reaching its terminals, under ECSS-E-ST-20-08C clause 9.6.16: hold the discharge network capacitance and series resistance inside their bands, derive the peak current, decay constant, transferred charge and stored energy the step voltage produces, walk the geometric step ladder with its pulse count and both ...
Use when a damp exposure loading for protection diodes is written or audited before the soak starts. Verify how a subgroup O protection diode load is arranged inside an ambient pressure chamber under ECSS-E-ST-20-08C clause 9.6.6.1.2: confirm the device count actually drawn from subgroup O, hold the chamber inside its ambient pressure band, derive the dew point the air temperature and humidity produce and keep the coldest package case above it, check the free flow left on the tray and the gap...
Use when scoping or defending a protection diode damp storage before the chamber is booked. Determine what a damp storage of protection diodes under ECSS-E-ST-20-08C clause 9.6.6.1.1 has to expose: group the moisture mechanisms that attack diode function, contact metallisation and protective coating onto the parameter each is read through, size the acceleration the chamber humidity and temperature buy over the declared store, convert the soak into the storage months it stands for, refuse cond...
Use when a protection diode contact surface finish record has to become a verdict. Assess the finish quality shown by the contact surfaces of a protection diode under ECSS-E-ST-20-08C clause 9.6.9: refuse an examination carried out below the declared magnification, take the measured roughness against both the working ceiling and the unweldable ceiling, disposition every finish anomaly on its kind, depth and coverage rather than on how it looks, reject a blister outright, send oxidation and re...
Use when an annealing stability result for protection diodes is written or audited. Verify that an external protection diode holds its electrical parameters through a high temperature annealing soak under ECSS-E-ST-20-08C clause 9.6.13: hold the soak profile against its floors and against the package rating, turn temperature and time into equivalent hours at the reference temperature through an Arrhenius factor, count the devices the plan actually draws from the annealing subgroup, match the ...
Use when a temperature behaviour map for protection diodes is planned or audited. Map the electrical parameters of a protection diode across its whole declared operating temperature range under ECSS-E-ST-20-08C clause 9.6.14: order the sweep and refuse a repeated temperature, take the endpoint gaps against the cold and hot ends of the range, take the widest gap between neighbouring points, fit the forward voltage temperature coefficient by least squares, derive the interval over which the rev...
Use when such a campaign is scoped. Determine whether a technology owes the non-ionising exposure ECSS-E-ST-20-08C clause 12.6.11.2.1 reserves for displacement-sensitive parts, and size it: exempt a majority-carrier part, take lifetime down the Messenger-Spratt law, compare the surviving diffusion length with the base width, convert fluence into damage dose through non-ionising energy loss, restate it in the mission equivalence, and refuse a plan short of the end-of-life point or of parts. Tr...
Use when a continuity run has to be accepted, sentenced or repeated. Verify that every circuit on a photovoltaic assembly control drawing actually conducts, under ECSS-E-ST-20-08C clause 5.5.3.3.2: check each reading against the test current, temperature and probe technique the drawing imposes, strip the probe leads from a two-wire reading or refuse to grade it, refer the resistance back to the reference temperature before comparing it with the circuit limit, separate a degraded joint from a ...
Use when an assembly has been checked electrically and the health statement needs its coverage and its resolution made explicit. Evaluate whether a set of continuity, insulation, polarity, bypass diode and bonding checks amounts to the electrical health assessment ECSS-E-ST-20-08C clause 5.5.3.3.1 asks for: cover every declared current-carrying path and isolation barrier, derive each instrument's discrimination against the band it has to judge, return indeterminate where a reading inside the ...
Use when post-exposure blocking diode data has to become a drawing verdict. Assess whether a blocking diode still sits inside its source control drawing limits once electron exposure and the anneal that follows are both behind it, under ECSS-E-ST-20-08C clause 12.6.11.2.3: refuse a limit set carrying no drawing reference, sentence only on the post-anneal reading and leave a device unsentenced while that reading is missing, judge forward drop and reverse leakage against their ceilings and bloc...
Use when such a run is planned or audited. Verify that a one megaelectronvolt electron irradiation of planar blocking diodes followed the method ECSS-E-ST-20-08C clause 12.6.11.2.2 states: hold the beam energy inside its tolerance, keep every segment inside the rate window, integrate flux over time into cumulative fluence and reconcile each planned point, refuse a ladder that does not rise or changed bias part way, and refuse a run missing a step readout or a control part. Trigger: ecss, e-st...
Use when auditing or planning a solar-cell electron irradiation run. Verify that a one megaelectronvolt electron irradiation of photovoltaic cell assemblies was run the way the referenced methodology of ECSS-E-ST-20-08C clause 6.4.3.11.2 requires: check the beam energy against the equivalent electron, the delivery rate against the allowed window and the sample-plane flux spread against its allowance, integrate flux over every irradiated segment into a cumulative fluence and reconcile it with ...
Use when such an accelerated-life campaign is scoped or its plan is reviewed: turn annual equivalent fluence, mission duration and margin into the end-of-life fluence, check the planned fluence steps rise, carry enough cells and reach that fluence, bound the beam acceleration from both sides, predict current, voltage and maximum-power retention from the logarithmic fit, and compare with the power budget. Evaluate whether a planned electron irradiation run can do what ECSS-E-ST-20-08C clause 6...
Use when a cell capacitance figure is quoted without saying which equivalent network it belongs to. Derive the equivalent circuit elements of a solar cell from one measured impedance per ECSS-E-ST-20-08C clause 11.1.4.2.1: split magnitude and phase into the series resistance and reactance, form the series capacitance, the loss tangent and the quality factor, transform that pair into the parallel capacitance and loss resistance, report the spread between the two forms, remove the declared cont...
Decide whether a photovoltaic coupon meets the no-sustained-arcing condition of ECSS-E-ST-20-08C clause 5.5.1.5.2 under the discharge conditions that were applied to it. Use when a coupon discharge run has finished and its event record has to be turned into a verdict: validate every recorded event, categorize each one as transient or sustained from how it terminated, how long it burned against the supply recovery window and whether it drew the current the coupon can feed, check that each even...
Use when verify that a discharge test on a solar-array coupon was run with the purpose-built instrumentation and defined settings ECSS-E-ST-20-08C clause 5.5.1.5.3 calls for: check the chamber pressure and coupon temperature against the test window, compute the energy stored on the external capacitance at each bias setting and compare it with the required discharge energy, derive the circuit decay constant and the peak arc current the series resistance permits, confirm the transient recorder ...
Use when a diode generic specification, agreement record or acceptance baseline is under review. Determine whether the generic specification governing acceptance of external and integral diodes was settled between customer and supplier before the work began, as clause 9.4.4 of ECSS-E-ST-20-08C asks. Confirm a specification is identified by issue, that both parties recorded agreement on that issue, that the later of the two agreement dates precedes the earliest acceptance activity, that extern...