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DropBot DB3 120 chips
Digital Microfluidic chips for DropBot DB3-120
Sci-Bots sells general-purpose, 90-electrode chips for use with the DropBot
DB3-120 system (contact email@example.com for a quote). Our chips are made with the following specifications:
- 0.9 mm Soda Lime glass
- High Reflective Chrome electrodes
- Vapour-deposited Parylene-C dielectric coating (6 μm)
- Spin-coated Fluoropel hydrophobic coating
- 0.7 mm ITO-coated glass (8-12 ohms/sq)
- Spin-coated Fluoropel 1101V hydrophobic coating
There is a 180 um gap height between top and bottom plates
Some users may also be interested in designing custom chips.
Chip design requirements
The main requirements for chips compatible with the DropBot
Bottom plate MUST be 76.2 mm wide
Bottom plate MUST be ~1+/-0.2 mm thickness under the pogo pins (top plate may be thicker)
Output enable (i.e.,
OE) pad MUST be connected to Ground (i.e.,
GND) pad in at least one corner of the chip (see below). It is RECOMMENDED to connect
GNDin all four corners.
Note: The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.
Reference chip design
Here is an example mask (click on image to download in AutoCAD
Here is the corresponding mapping of DropBot channels to electrodes on the reference mask:
Please contact firstname.lastname@example.org for more information.