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ma-N 1410 process recipe

ma-N 1410 is the third-thinnest grade in micro resist technology's ma-N 1400 negative-tone photoresist series, nominally coating 1.0 µm at 3000 rpm/30 s, used as a high-etch-resistance mask or, with an extended develop time, for undercut lift-off patterning.

https://nanyte.com/photoresists/ma-n-1410 · last updated 2026-07-26

At a glance
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Manufacturer
micro resist technology GmbH
Tone
negative
Chemistry
Bisazide-novolak
Thickness
1 µm
Exposure dose
450 mJ/cm²
Developer
ma-D 533/S
Applications
Etch mask · Lift-off · MEMS structural

Cross-checked — two independent extractions agree on the spin curve and the single-value figures.

The exposed resist stays after development; the unexposed film dissolves. Schematic cross-sections for ma-N 1410 — feature width, film aspect ratio and sidewall angle are illustrative, not to scale.
01 / Coating

Spin coating

Spin curve for ma-N 1410: film thickness in µm against spin speed in rpm.0.51.01.52.01k2k3k4k5k6kSPIN SPEED (rpm)THICKNESS (µm)
Data points
ma-N 1410 — film thickness (µm) by spin speed (rpm)
Seriesrpmµm
ma-N 141010001.8
20001.3
30001.0
40000.87
50000.77
60000.70

Values are the manufacturer’s starting points, not a guarantee — characterize on your own tool. Series digitized from a published figure are approximate (±10 %).

read from figure, "Fig. 1: Spin curves of the ma-N 1400 series, 30 s spin time", p.2 of ma-N 1400 series Processing guidelines (micro resist technology, rev. ls.05.11.25.02); trace identified as the red line, second from the top, per the chart's own inline legend (ma-N 1420 black / ma-N 1410 red / ma-N 1407 green / ma-N 1405 blue), matching the series' viscosity ranking (1420 highest > 1410 > 1407 > 1405 lowest). The curve carries no individual point markers, so values are read at the 6 labelled x-axis gridlines (1000/2000/3000/4000/5000/6000 rpm). The chart's own vertical reference line at 3000 rpm crosses the red trace at ~1.0 µm, matching the numeric anchor (Film Thickness = 1.0 ± 0.1 µm at 3000 rpm/30s, 'Physical properties of the resist solution' table p.1, corroborated by the 'Processing conditions - STANDARD PROCESS' table p.2).

Redrawn from the manufacturer's published data — hover to read between points, click to pin.
  • Fig. 1 (p.2, 'Spin curves of the ma-N 1400 series, 30 s spin time') plots a full thickness-vs-spin-speed curve for ma-N 1410 alongside ma-N 1405/1407/1420 (four individually legended, distinctly colored lines, no individual point markers, 1000-6000 rpm, ranked by viscosity: 1420 highest/topmost black, 1410 second red, 1407 third green, 1405 lowest blue).
  • The red (ma-N 1410) trace is plotted here from its 6 labelled x-axis gridlines; the chart's own vertical reference line at 3000 rpm crosses it at ~1.0 µm, matching the numeric-table anchor below essentially exactly, which confirms the right trace was isolated in a chart carrying no point markers.
  • The datasheet additionally publishes a single numeric ANCHOR POINT — 3000 rpm → 1 µm (numeric table 'Physical properties of the resist solution', p.1 of ma-N 1400 series processing guidelines (footnote 1: 'Spin coated at 3000 rpm for 30 s'); Film Thickness = 1.0 ± 0.1 µm for ma-N 1410. Corroborated by the 'Processing conditions - STANDARD PROCESS' table, p.2, which also lists 1.0 µm for ma-N 1410 at the same 3000 rpm/30 s condition.).
  • 'Uniform coatings are obtained by spin coating of ma-N 1400 solutions in the thickness range indicated in the spin curves' (p.2); no dispense volume, acceleration ramp, or edge-bead-removal step is described anywhere in this document.
Adhesion
HMDS recommended — 'For improving resist film adhesion to Si and SiO2 substrates it is advisable to apply an adhesion promoter such as HMDS' (Substrate preparation, p.2). Standard process substrate preparation is 'Oven: 200 °C, 30 min (HMDS for Si and SiO2 substrates)' (Processing conditions table, p.2).
02 / Bake

Soft bake

Soft bake
100 °C · 1.5 min · hotplate
Notes
Value shown (100 °C, 90 s) is the ma-N 1410 column of the hotplate prebake row; other grades in the same table use different times at the same 100 °C (1405/1407: 60 s, 1420: 120 s). An oven alternative is also given: 100-105 °C for 15-30 min (shared across all grades). Recommended prebake temperature also varies by substrate: Si 100-120 °C, Au 120 °C, Si3N4 120 °C, GaAsP/GaAs 100 °C (p.3) — the 100 °C/90 s value applies to the standard (unspecified-substrate) process. A higher prebake (up to 160 °C) or longer time increases etch resistance/thermal stability but also increases developing time.

SOURCE: Processing conditions - STANDARD PROCESS table, p.2; Recommended prebake temperatures table, p.3

03 / Exposure

Exposure dose

The manufacturer publishes 450 mJ/cm². Dose scales with film thickness and depends on your optics, so treat it as a starting point and run a dose array.

As published
450 ± 30 mJ/cm² is the standard-process dose. It was taken under a broadband lamp with the intensity metered at 365 nm — a lamp dose read at i-line, not an i-line-only exposure.

Not published for this resist: Dose at 365 nm, Dose at 405 nm — characterize on-tool.

SOURCE: Processing conditions - STANDARD PROCESS table, p.2

04 / Development

Development

Developer
ma-D 533/S
Dilution
Not published — characterize on-tool
Time
30 s (20–40 s)
Method
immersion
Rinse
Developed resist films are thoroughly rinsed with deionized water and then dried.
Developer family
TMAH-based

SOURCE: Processing conditions - STANDARD PROCESS table (footnote 2: immersion development), p.2; Develop section, p.4

05 / Post-processing

Hard bake, etch & strip

Hard bake
100 °C · 30 min
Descum
Not published — characterize on-tool
Etch resistance
"Well suitable as an etch mask exhibiting high dry and wet etch resistance" (Characteristics, p.1).
Stripper
mr-Rem 660 (solvent based) and ma-R 404/S (strongly alkaline) recommended; acetone, N-methylpyrrolidone (NMP) or oxygen plasma also suitable for residue-free removal (Removal section, p.4). For lift-off specifically: mr-Rem 660 or NMP at 40-60 °C assisted by ultrasonics, or acetone assisted by ultrasonics (p.5).
Storage
"Storage at temperatures of 18 – 25 °C is recommended. Do not store ma-N 1400 resists in a refrigerator. Resists and unprocessed resist films have to be stored under yellow light. Keep the bottle closed when not in use. Under these conditions a shelf life of 6 months from the date of manufacture is ensured." (Storage section, p.5)

SOURCE: Hardbake (optional) section, p.4

06 / Applications

Where it's used

Practical notes from the datasheet

ma-N 1410 is the third grade (of four) in micro resist technology's ma-N 1400 negative-tone series, nominally coating 1.0 ± 0.1 µm at 3000 rpm/30 s and developing in the metal-ion-free ma-D 533/S developer recommended for microelectronics work. The standard process yields nearly vertical sidewalls; the datasheet describes a separate lift-off recipe in which undercut profile is tuned primarily by extending development time (holding exposure dose and prebake constant) rather than by underexposing — a worked 2.0 µm-thick example (not this grade specifically) shows undercut growing from 0.6 to 2.1 µm as development time increases from 65 to 120 s at a fixed 550 mJ/cm² dose and 100 °C/120 s prebake. For clean lift-off the datasheet recommends a resist film 1.5-2x the metal deposition thickness, plus — for sputtered metals in particular — a higher prebake and/or a deep-UV (200-300 nm) flood exposure at 2-5x the patterning dose to thermally stabilize the pattern before deposition. The exposure dose (450 ± 30 mJ/cm²) is explicitly measured at 365 nm on a broadband tool; the document plots UV/vis absorption out past 405 nm but never gives a dose at that wavelength. The datasheet's Fig. 1 plots a full ma-N 1400-series spin curve (four grades, 1000-6000 rpm) and the one point it also prints as a number is the 3000 rpm/1.0 µm table anchor. Chemistry classified as bisazide-novolak from microresist.de's statement that the ma-N 1400 series is an 'aromatic bisazide/novolac based resist series'.

07 / Family

Grades in this family

Other grades in the ma-N 1400 series line differ mainly in coating thickness:

ma-N 1400 series — grade comparison
GradeThicknessExposure dose
ma-N 1410 (this page)1 µm450 mJ/cm²
ma-N 14201.4–3.4 µm550 mJ/cm²
08 / Troubleshooting

Troubleshooting

Common failure modes for ma-N 1410, answered from the manufacturer's datasheet and application notes. These are starting points — your substrate, tooling and environment shift the specifics, so calibrate on-tool.

Which developer does ma-N 1410 use?

ma-D 533/S, a TMAH-based (metal-ion-free) aqueous-alkaline developer recommended for microelectronics work. The standard process for ma-N 1410 is 30 ± 10 s by immersion with the developer at 20–25°C, followed by a thorough deionized-water rinse and dry.

SOURCE: ma-N 1400 Processing Guidelines

micro resist technology ma-N 1400 Processing Guidelines (ls.05.11.25.02) — STANDARD PROCESS table, p.2 + Develop section, p.4; TMAH per microresist.de flyer

What is the exposure dose for ma-N 1410?

450 ± 30 mJ/cm² in the standard process, from broadband exposure with intensity measured at 365 nm (i-line). The document plots UV/vis absorption past 405 nm but never gives a dose value at h-line, so no 405 nm dose is published — characterize on-tool. The resist is effective for broadband or i-line exposure.

SOURCE: ma-N 1400 Processing Guidelines

micro resist technology ma-N 1400 Processing Guidelines (ls.05.11.25.02) — STANDARD PROCESS table + footnote 1 / Exposure section, p.2–3

What prebake (soft bake) does ma-N 1410 need?

100°C for 90 s on a hotplate is the standard prebake for ma-N 1410 (thinner 1405/1407 grades use 60 s, the thicker 1420 uses 120 s). An oven alternative is 100–105°C for 15–30 min. Recommended prebake temperature varies by substrate — 100–120°C on Si, 120°C on Au and Si3N4. A higher prebake (up to 160°C) or longer time raises etch resistance but also increases the develop time needed.

SOURCE: ma-N 1400 Processing Guidelines

micro resist technology ma-N 1400 Processing Guidelines (ls.05.11.25.02) — STANDARD PROCESS table, p.2 + Recommended prebake temperatures, p.3

Does ma-N 1410 need HMDS or an adhesion promoter?

Yes for Si and SiO2 — the datasheet advises applying an adhesion promoter such as HMDS. Standard substrate preparation is an oven bake at 200°C for 30 min, with HMDS for Si and SiO2 substrates.

SOURCE: ma-N 1400 Processing Guidelines

micro resist technology ma-N 1400 Processing Guidelines (ls.05.11.25.02) — Substrate preparation / Processing conditions table, p.2

How do I tune an undercut profile for lift-off with ma-N 1410?

Extend the development time while holding exposure dose and prebake constant — the manufacturer's lever for undercut, rather than underexposing. A worked 2.0 µm example (not this grade) shows undercut growing from 0.6 to 2.1 µm as develop time goes 65→120 s at fixed 550 mJ/cm² and 100°C/120 s prebake. For clean lift-off keep resist thickness 1.5–2× the metal deposition thickness; for sputtered metals add a higher prebake or a deep-UV flood at 2–5× the patterning dose.

SOURCE: ma-N 1400 Processing Guidelines

micro resist technology ma-N 1400 Processing Guidelines (ls.05.11.25.02) — lift-off guidance + worked undercut example, p.4–5

09 / Sources

Sources & disclaimer

Research using this resist
  1. Thoen et al.. Combined ultraviolet- and electron-beam lithography with Micro-Resist-Technology GmbH ma-N1400 resist. Journal of Vacuum Science & Technology B (2022). doi:10.1116/6.0001918
    one ma-N 1400 layer exposed by UV and 100 kV e-beam for an on-chip THz spectrometer

Manufacturer datasheet values are starting points; optimal parameters depend on your substrate, equipment and environment. Product names and trademarks belong to their respective owners. NANYTE is not affiliated with the manufacturers listed. Last updated 2026-07-26.

Cite this recipe

NANYTE. "ma-N 1410 process recipe." NANYTE Photoresist Library. https://nanyte.com/photoresists/ma-n-1410. Accessed 2026-07-26.

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