Printed circuit board production, wafers and alkaline texturing

Nozzles are used in several, sensitive manufacturing steps. In the production of printed circuit boards, this takes place in a variety of photosensitive, mechanical and chemical processes. Wafers are circular or square, about one millimeter thick discs produced for microelectronics, photovoltaics and microsystems technology. Nozzles are also used for alkaline texturing.

Lechler nozzles in photovoltaic and printed circuit boards industry

Photovoltaic and printed circuit boards industryFlat fan nozzles in sveral series-connected modules are used in this process.After the sawing process, the wafers are moistened with hollow cone nozzles.After the sawing process, the wafers are gently cleaned with full cone nozzles.Rotating cleaning nozzles for printed circuit board manufacture series 500.191. Rotating cleaning nozzles are used in horizontal continuous through-put systems for printed circuit board manufacture.Developing, etching, stripping.
Nozzles for alkaline texturing

Nozzles for alkaline texturing

  • Process specific application of flat fan nozzles in several series-connected modules.
  • Preferred application of nozzles made of PVDF due to their resistance to chemicals used in the individual processes.
Nozzles for wafer moistening

Nozzles for wafer moistening

  • Application of hollow cone nozzles for moistening the wafers following the sawing process.
  • Hollow cone nozzles produce a fine spray mist that settles on the wafers. This ensures that no impurities dry onto the wafer, thereby also ensuring an efficient wafer production process.
Nozzles for wafer cleaning

Nozzles for wafer cleaning

  • Application of full cone nozzles for the gently cleaning of wafers after the sawing process.
  • Spraying of cleaning medium onto the individual wafers to achieve a homogeneous cleaning result across the entire surface.
Rotating cleaning nozzles for printed circuit board manufacture

Rotating cleaning nozzles for printed circuit board manufacture

  • Application of rotating cleaning nozzles series 500.191. in horizontal continuous through-put systems for printed circuit board manufacture.
  • Rotating cleaning nozzles of series 500.191. are made entirely of PVDF, which makes them optimally suited for use in sulphuric acid-based applications.
Circuit board manufacturing

Circuit board manufacturing

  • For the process steps of developing, etching and stripping regarding manufacturing circuit boards, different nozzles are applied in a typical inner layer line.
  • An example for the nozzles applied here is the series 646 nozzles with bayonet quick-locking system.

Fitting nozzles

Lechler Flachstrahldüsen Baureihe

Nozzles for alkaline texturing


Especially low flow rates. Parabolic liquid distribution.

Applications: Belt lubrication, moistening, spraying of food products, moisturization of rollers, oiling, lubrication of metal sheets.

Products in Online Shop Technical data (pdf, 1.77 MB)
Lechler Hohlkegeldüsen Baureihe 220

Nozzles for wafer moistening

Series 220

Extremely fine, fog-like hollow cone spray.

Application: Disinfection, humidification, cooling.

Products in Online Shop Technical data (pdf, 368.12 KB)
Lechler Vollkegeldüsen Baureihe 490/491

Nozzles for wafer cleaning

Series 490/491

Non-clogging nozzle design. Stable spray angle. Particularly even liquid distribution. Series 490/491 represents a new generation within the axial-flow full cone nozzles product group. These nozzles were developed using state-of-the-art-design and simulation methods (CFD).

Applications: Cleaning and washing processes, surface spraying, Container cleaning, foam precipitation, degassing of liquids.

Products in Online Shop Technical data (pdf, 1.95 MB)
Lechler Rotationsreiniger Baureihe 500.191

Nozzles for printed circuit board manufacture

Series 500.191 "PVDF MicroWhirly"

The PVDF MicroWhirly is made entirely from PVDF and designed to work in a corrosive environment. It is also suitable for contact with food and the application of foam, and can be used for cleaning equipment - all for a very good price-performance ratio.

Products in Online Shop Technical data (pdf, 2.19 MB)
Lechler Flachstrahldüsen Baureihe 646

Nozzles for circuit board manufacturing

Series 646

Quick and easy assembly with bayonet quick release cap. Adjusted spray direction. Uniform liquid distribution.

Application: Belt cleaning, surface treatment, spray cleaning, coating processes.

Products in Online Shop Technical data (pdf, 1.84 MB)


Lechler GmbH, MetzingenGeneral Industry DivisionPhone +49 (0)7123 962-0Fax +49 (0)7123 962-444ind(at)