Dikte halfgeleiderwafel en analyse van precisiestaphoogte
Micro Precision maakt gebruik van de modernste technologie om halfgeleiderwafeldikte- en staphoogteanalyses uit te voeren door geaccrediteerde ellipsometrie- en oppervlakteprofileringsmethodologieën te integreren. Ons laboratorium in Richardson, TX is geaccrediteerd door ANAB om ISO/IEC 17025-2017 geaccrediteerde metingen uit te voeren.
Waferdikte- en staphoogteanalyse zijn kritische componenten die worden gebruikt in de halfgeleiderindustrie.
Wat is een ellipsometer?
De VASE® spectroscopische ellipsometer met variabele hoek beschikt over computergestuurde selectie van golflengte en invalshoek. Een xenonlamp levert licht van ultraviolet (UV) tot nabij-infrarood (NIR). Individuele golflengten worden geselecteerd met een tweekamermonochromator. Er wordt een gestapelde Si/InGaAs-detector gebruikt van 193 nm tot 1700 nm. Recente ontwikkeling van een uitgebreide InGaAs-detector maakt metingen tot 2500 nm mogelijk. De VASE® maakt gebruik van een roterende analysator-ellipsometer (RAE)-configuratie met de toevoeging van JJ Woolam’s gepatenteerde AutoRetarder™
Ellipsometrie definiëren:
Ellipsometrie is het gebruik van gepolariseerd licht om dunne films en bulkmaterialen te karakteriseren. Een verandering in polarisatie wordt gemeten nadat licht van het oppervlak is gereflecteerd. Dunne filmdikte (t) en optische constanten (n, k) worden afgeleid van de meting.
Informatie wordt verkregen van elke laag die interactie heeft met de meting. Licht dat terugkeert van de film-substraat-interface interfereert met de oppervlaktereflectie om laaginformatie te verschaffen.
Geaccrediteerde staphoogte-analysemogelijkheden
Stylusprofilers en oppervlaktestandaarden:
Stylusprofilers zijn veelzijdige meetinstrumenten voor de studie van oppervlaktetopografie. De profiler is gebaseerd op een metalen stylus met een kleine diameter en een tip van diamant of composietmateriaal die het oppervlak van het monster scant. Tijdens de scan maakt de stylus direct contact met het oppervlak om gegevens met zeer hoge precisie en herhaalbaarheid te verkrijgen. De stylusprofilertafel beweegt het monster lineair onder de stylus om metingen van het oppervlakteprofiel te verkrijgen. Bij het tegenkomen van oppervlaktekenmerken beweegt de stylus verticaal om de verschillende kenmerken te meten.
Er zijn nieuwe ontwikkelingen in de stylusprofilertechnologie ontwikkeld voor krimpende geometrieën. Ze bevatten een Low Inertia Sensor voor een ongeëvenaarde herhaalbaarheid van de staphoogte. De integratie van softwareverbeteringen en programma-nivelleringsfuncties zorgen voor consistente nauwkeurige metingen met minimale onzekerheid.
Nauwkeurige staphoogtekalibratie:
De meetcapaciteit wordt ingesteld met behulp van een oppervlakteprofielsysteem, dat in combinatie met NIST-referentie- en traceerbare standaarden wordt gebruikt om het algehele staphoogteprofiel te meten.
Dektak 3®
Oppervlakteprofiler met 6,5″ monstervacuümtafel, 3″x6″ XY-monstervertaling, handmatige tafel, 1A verticale resolutie, 131um maximaal verticaal bereik, 50um tot 50mm scanlengte, maximaal 8.000 punten per scan, 1mg-40mg programmeerbaar styluskrachtbereik.
Halfgeleiderwafer- en traphoogtemogelijkheden
ANAB geaccrediteerd volgens ISO/IEC 17025-2017 geaccrediteerde capaciteit:
| Parameter / uitrusting | Bereik | Uitgebreide meetonzekerheid (+/-) | Geaccrediteerd (ISO/IEC 17025, Z540.3) |
|---|---|---|---|
| Wafeldikte | (3,0 tot 1500)nm | 0,32nm | Ellipsometer en standaard wafels |
| Nauwkeurige staphoogtenormen | (100 tot 1000)A (>1 tot 250)kA | 17A | Surface Profiler en Standard Step |
Andere mogelijkheden
Micro Precision kan instrumentkalibratieservices uitvoeren op apparatuur van verschillende toepassingen voor specifieke industrieën en bedrijfstakken. Als u een kalibratiebehoefte heeft die niet in dit gebied wordt vermeld, kunt u contact met ons opnemen.
Laboratorium normen
Kalibratielaboratoriumstandaarden zijn van cruciaal belang voor de meest nauwkeurige metingen van uw organisatie.
Optisch
Door Micro Precision geaccrediteerde laboratoriumdiensten voor optische, licht- en glasvezelkalibratie.
Chemical
Door Micro Precision geaccrediteerde thermodynamische en chemische kalibratielaboratoriumdiensten met mogelijkheden voor temperatuur, vochtigheid, biowetenschappen en farma.
RF - Magnetron
Door Micro Precision geaccrediteerde RF- en microgolfkalibratielaboratoriumservices.
Elektrisch
Door Micro Precision geaccrediteerde laboratoriumservices voor elektrische kalibratie met multimeter, multifunctionele kalibrator, oscilloscoop en voedingsmogelijkheden.
Mechanisch & Dimensionaal
Door Micro Precision geaccrediteerde mechanische en dimensionale kalibratielaboratoriumdiensten met mogelijkheden voor druk, koppel, kracht, stroming, snelheid en vliegtuigkrikbelasting.
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