ABTECH Scientific, Inc.-PLANAR METAL ELECTRODES

PLANAR METAL AND ITO ELECTRODES^T(PMES AND PITOES)
(Gold, Platinum and ITO)

PLANAR ELECTRODE PRODUCTS	Critical Dimensions	Designs	Conductor
PMEMA1x3AU Microarray BioChip Substrate	1.0” x 3.0” x 0.04” (2.54 cm x 7.62 cm x 0.10 cm)	Package of 5	BSGlass \| 100Á Ti/W \| 1,000Á Au
PMEMA1x3PT Microarray BioChip Substrate	1.0” x 3.0” x 0.04” (2.54 cm x 7.62 cm x 0.10 cm)		BSGlass \| 100Á Ti/W \| 1,000Á Pt
PME Au 118	1.0 cm x 2.0 cm x 0.05 cm	Package of 6	BSGlass \| 100Á Ti/W \| 1,000Á Au
PME Au 118-P (packaged chip)	1.0 cm x 1.0 cm x 0.05 cm	1 each	BSGlass \| 100Á Ti/W \| 1,000Á Au
PME Au 218	2.0 cm x 2.0 cm x 0.05 cm	Package of 4	BSGlass \| 100Á Ti/W \| 1,000Á Au
PME Pt 118	1.0 cm x 2.0 cm x 0.05 cm	Package of 6	BSGlass \| 100Á Ti/W \| 1,000Á Pt
PME Pt 118-P (packaged chip)	1.0 cm x 1.0 cm x 0.05 cm	1 each	BSGlass \| 100Á Ti/W \| 1,000Á Pt
PME Pt 218	2.0 cm x 2.0 cm x 0.05 cm	Package of 4	BSGlass \| 100Á Ti/W \| 1,000Á Pt
PITOE 118	1.0 cm x 2.0 cm x 0.05 cm	Package of 6	BSGlass \| 1,000Á ITO (10 Ohms/p)
PITOE 118-P (packaged chip)	1.0 cm x 1.0 cm x 0.05 cm	1 each	BSGlass \| 1,000Á ITO (10 Ohms/p)
PITOE 218	2.0 cm x 2.0 cm x 0.05 cm	Package of 4	BSGlass \| 1,000Á ITO (10 Ohms/p)
PITOE 150	0.9 cm x 5.0 cm x 0.05 cm	Package of 6	BSGlass \| 1,000Á ITO (10 Ohms/p)
PITOE 150-P (packaged chip)	0.9 cm x 5.0 cm x 0.05 cm	1 each	BSGlass \| 1,000Á ITO (10 Ohms/p)
PITOE 250	2.0 cm x 5.0 cm x 0.05 cm	Package of 4	BSGlass \| 1,000Á ITO (10 Ohms/p)
PE CUSTOM	YOUR DIMENSIONS	YOUR QUANTITY	YOUR SUBSTRATE

Introduction and Background

Applications of PMEs and PITOEs

Technical Specifications

Introduction and Background Ø Planar Metal Electrodes (PMEs) are highly uniform thin films of noble metals formed by magnetron sputter deposition or thermal evaporation onto planar insulating glass substrate plates. The conducting layer of gold or platinum (Pt or Au = 1,000 Á) is deposited following deposition of an adhesion promoting layer of titanium-tungsten (Ti/W = 100Á) that serves as the adhesion promoting layer. These layers are deposited onto a very smooth (60/40 scratch and dig finish), highly insulating, chemically resistant and non-leaching, electronics grade borosilicate glass substrate. Substrates such as silicon, with a thermally grown oxide or silicon nitride insulating layer, are also available. Ø PMEs and PITOEs have plate dimensions of 1.0 cm (w) x 2.0 cm (l) x 0.05 cm (t) (PME 118, PITOE 118) or dimensions of 2.0 cm x 2.0 cm x 0.05 cm (PME 218, PITOE 218). The PME 118 and PITOE 118 are also available as packaged electrodes wherein the chip is mounted onto the WAND CHIP CARRIER and encapsulated with an epoxy resin to reveal an approximately 1.0 cm x 1.0 cm active area. Ø PMEs and PITOEs may also be supplied in your custom dimensions to meet your uniques research and product development needs. Consult your applications development professional. Ø PMEs and PITOEs may also be supplied with your custom surface chemistries to meet your uniques research and product development needs. Consult your applications development professional. Back to top Applications of PMES and PITOES Ø Electropolymerization of electroactive polymers: Ø Reflectance Spectroscopy of ultra thin polymer films and self assembled nano-layers. Ø Surface modification and derivatization: Ø Monolayer self assembly of alkane thiol SAMs, Langmuir-Blodgett films, adsorbed protein layers and polyelectrolyte LBL deposition. Ø Electrodes in electrochemistry. Back to top Technical Specifications
	Ø Chip Substrate:	Schott D263 Borosilicate Glass	Value
		Dielectric Constant, Epsilon(r) at 1 MHz	6.7
		Dielectric Loss Angle, tan delta, at 1 MHz	61 x 10-4
		Electrical Resistivity (50 Hz) (250 C)	1.6 x 108 ohm cm
		Coefficient of Linear Thermal Expansion, * 20-300 Deg C	7.2 x 10^-6 K^-1
		Refractive Index at 20 C, ne ( Lambda = 546.1 nm)	1.5249
	Ø Metallization:	100 Å Ti\|W / 1000 Å Au or Pt and ITO = 10 Ohms/sq

	Ø IME Chip Dimensions	Un-packaged Die
		(l x w x t)
	PME 118 and PITOE 118	1.00 x 2.00 x 0.05 cm
	PME 218 and PITOE 218	2.00 x 2.00 x 0.05 cm

	Ø Mounting
		IME WAND CHIP CARRIER OF PCB

Back to t*op

PME and PITOE Accessories

	Perfusion Chamber	CARRIER	Test Clip
Dimensions	D = 9 mm V @ 35ml	11.4 cm	N/A
Connector Type	Micropipette	Gold Plated Pins to PCB	Gold Plated Pins
Number of Conductors	2 each chamber: IN & OUT	4 on PCB	4 on one side
Lead	N.A.	N.A.	N.A.
Part No.	PC8R-0.5 Perfusion Chamber	WAND	STC 4
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Methods

Ø Cleaning: Chips may be cleaned using any of the standard methods developed for microfabricated devices and chips. General advice on cleaning is provided at ABTECH's “Download Files” web page.

Ø Coating: Films or coatings may be applied to the PME or PITOE devices by microcontact printing, dip coating, spin casting, spray painting, air-brushing, brush painting, by the Langmuir-Blodgett thin film deposition technique, by electropolymerization, and by molecular self assembly.

Ø Electrical connection: Electrical connections to the PMEs and PITOEs are best made using the STC 4 Test Clip. Alternatively, you may develop your own method of attachment of leadwires using a conductive epoxy (usually silver), low-temperature micro-soldering (indium) or simple alligator clip.

Application Notes

For further information, request Application Notes or you may download application note files:

Ø Because of the many possibilities for the use of PMEs and PITOEs, no application notes have yet been developed in support of this product line.

PME and PITOE are tradenames for a family of devices developed by ABTECH Scientific, Inc. These devices are microfabricated (using microelectronics fabrication techniques) to form patterns of conductors deposited on an insulating substrate chip. They are designed for the simultaneous interrogation of the electrical, electrochemical, and optical properties of thin polymeric films and coatings, for applications in microelectrochemistry, and for electrical/electrochemical impedance spectroscopy.

Contact: Ann M. Wilson, Manager,
Applications Development ABTECH Scientific, Inc.
800 East Leigh Street 52, Richmond, Virginia 23219
Telephone Number: +1-804-783-7829 Fax Number: +1-804-783-7830
e-mail: sales@abtechsci.com

Introduction and Background

Applications of PMES and PITOES

Methods