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ma-P 1215 process recipe

Positive-tone resist from micro resist technology's ma-P 1200 series; ma-P 1215 is the 1.5 µm nominal-thickness grade, coated at 3000 rpm for 30 s, part of a six-grade family spanning 0.3–40 µm.

https://nanyte.com/photoresists/ma-p-1215 · last updated 2026-07-26

At a glance
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Manufacturer
micro resist technology GmbH
Tone
positive
Chemistry
DNQ-novolak
Thickness
1.5 µm
Exposure dose
45 mJ/cm²
Applications
Etch mask · Electroplating / molding
The exposed resist dissolves in the developer; the unexposed film stays. Schematic cross-sections for ma-P 1215 — feature width, film aspect ratio and sidewall angle are illustrative, not to scale.
01 / Coating

Spin coating

The manufacturer does not publish a spin curve for ma-P 1215.

  • The 'Positive Photoresist Series' table (p.1) lists ma-P 1205/1210/1215/1225/1240/1275 side by side, each with exactly one film-thickness value, all coated at the SAME condition: 3000 rpm, 30 s spin time.
  • For ma-P 1215 that is 1.5 µm — a single anchor point, not a spin-speed sweep, so per protocol no curve is published (a one-point series is not a curve).
  • A separate figure titled 'ma-P 1200 series — Spin curves, 30 s spin time' (p.1) plots film thickness vs. spin speed (1000–6000 rpm) for all six grades on one chart with a color-coded legend (ma-P 1275/1240/1225/1215/1210/1205, in that order, thickest to thinnest).
  • That figure carries no numeric table — only axis tick labels (0–16 µm, 1000–6000 rpm) and the legend strings — so no per-grade values are published from it, and the tabulated anchor above is the only thickness figure with a number attached.
  • No accel, dispense volume, edge-bead removal, or rehydration guidance is published anywhere in this document.
  • The manufacturer's own feature list states 'No post exposure bake' for the whole ma-P 1200 series.
Adhesion
HMDS not required — Not mentioned in this document.
02 / Bake

Soft bake

Soft bake
Not published — characterize on-tool
03 / Exposure

Exposure dose

The manufacturer publishes 45 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
45 mJ/cm² is the published dose for ma-P 1215, taken under broadband exposure with the meter set on the 365 nm line rather than as a monochromatic i-line spec.

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

SOURCE: table "Positive Photoresist Series", p.1 of ma-P.pdf, ma-P 1215 column

04 / Development

Development

Not published for this resist: Developer, Dilution, Time, Method, Rinse — characterize on-tool.

SOURCE: bullet "Aqueous alkaline development", p.1 of ma-P.pdf

05 / Post-processing

Hard bake, etch & strip

Etch resistance
Manufacturer states "Outstanding pattern stability in wet etch processes and acid and alkaline plating baths" and "Highly stable in dry etch processes e.g. CHF3, CF4, SF[x]" for the ma-P 1200 series (p.1).

Not published for this resist: Hard bake, Descum, Stripper, Storage — characterize on-tool.

06 / Applications

Where it's used

Practical notes from the datasheet

ma-P 1215 is the 1.5 µm nominal-thickness member of micro resist technology's ma-P 1200 positive-tone series, a six-grade family (1205 through 1275) spanning 0.3–40 µm, all coated at the same 3000 rpm / 30 s condition per the family table. The manufacturer calls out "no post exposure bake" as a series-wide feature, which simplifies the process relative to resists that require a critical PEB step. Development is aqueous-alkaline, but this flyer names no specific developer product, dilution, or time — only a general process-flow diagram (coat, expose, develop) is shown. A multi-grade spin-speed curve (1000–6000 rpm, 30 s) is published for the whole family on one chart, but no numeric table accompanies it, so the tabulated 1.5 µm anchor is the only thickness figure with a number attached. The document also markets ma-P 1275 / ma-P 1275 HV as separate high-viscosity grades for electroplating molds up to 60 µm, but does not mention any 'ma-P 1275G' or grayscale variant. Chemistry classified as dnq-novolak from kayakuam.com's statement that ma-P 1200 is a 'positive tone DNQ/novolac based resist series'.

07 / Sources

Sources & disclaimer

Research using this resist
  1. Haus et al.. Robust Pressure Sensor in SOI Technology with Butterfly Wiring for Airfoil Integration. Sensors (2021). doi:10.3390/s21186140
    Uses ma-P 1215 as the lithographic mask through which 40% hydrofluoric acid opens the oxide to define boron doping windows, in an SOI piezoresistive pressure sensor built for airfoil integration.
  2. Xu et al.. Mapping enzyme catalysis with metabolic biosensing. Nature Communications (2021). doi:10.1038/s41467-021-27185-9
    Transfers sawtooth electrode patterns into a 2 um-thick ma-P 1215 layer over sputtered chromium, then wet-etches the chromium through the resist to build the electrodes of a droplet-microfluidic enzyme-screening chip.
  3. Zhang et al.. Linked optical and gene expression profiling of single cells at high-throughput. Genome Biology (2020). doi:10.1186/s13059-020-01958-9
    States a complete ma-P 1215 process for a chromium electrode mask: a 2 um coat, a 1 min bake at 95 C, a 3.5 min collimated UV exposure, then development and chromium etching.

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-P 1215 process recipe." NANYTE Photoresist Library. https://nanyte.com/photoresists/ma-p-1215. Accessed 2026-07-26.

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