Wafers

Silicon wafers are the foundation of the semiconductor industry, being used to create the chips that power our computers, phones, and other electronic devices.

‍PI-KEM offers a wide range of silicon wafers with standard wafers available from stock or manufactured to customer specifications.

Options include:

• Grade: Prime, test, reclaim and mechanical
• Diameter: 1” up to 8” as standard
• Thickness: 250um up to 725um
• Type and Dopant: Intrinsic, n-type, p-type
• Orientation: <100>, <110>, <111>

Product Overview

Diameter & Thickness

Standard Wafers

Ultrathin® wafers

Specialist thin wafers available in the following specification:

1” diameter down to 10 μm thickness

4” diameter down to 90 μm thickness

6” diameter down to 150μm thick

Custom thicknesses available on request

Type & Dopant

Resistivity

Orientation

Surface

Silicon carbide wafers offer advantages over pure silicon wafers including:

• Wider band gap allowing SiC devices to operate at higher voltage and frequency. This reduces heat generated and increases the efficiency of power conversion
• Higher thermal conductivity giving better heat dissipation and so higher working temperatures
• Chemical inertness so can operate in harsher environments
• Radiation hardness so it is less susceptible to radiation damage than silicon

Options include:

• Diameter: 1” up to 8” as standard
• Polytypes: 4H, 6H

Semiconductor wafers are used in the fabrication of integrated circuits (ICs), acting as a foundation for the building of devices. Specific properties of semiconductor wafers include:

• High purity giving more precise control of their electrical properties and essential for the manufacture of high-performance transistors
• Monocrystalline giving consistent electrical properties
• High surface flatness crucial for the precise patterning of circuits and the fabrication of electronic devices
• Tight dimensional tolerances critical for the maintenance of electrical performance across the whole wafer

PI-KEM offers both III-V and II-VI wafers. Other materials can be offered.

Options include:

• Diameter:  1” up to 8” as standard
• Standard Materials:  Gallium, Indium, Zinc and Cadmium based materials

Product Overview

III-V Wafers

II-VI Wafers

Platinised silicon wafers have a thin platinum layer giving them high conductivity and catalytic properties but retaining the ability to be fabricated using the same processes as silicon wafers.  

Applications include:

• Gas sensors
• Photovoltaic cells
• Fuel cells

PI-KEM offer platinised silicon, manufactured to customer specifications

• ‍Diameter: 4” standard, other sizes available
• ‍Standard Layers: Thermal SiO₂, TiO₂ or Ti Adhesion, Platinum E-Beam

Product Overview

Silicon on Insulator (SOI) wafers are semiconductor wafers that have a thin layer of silicon dioxide (SiO2) insulating material between a top silicon layer and a silicon substrate. This structure provides advantages over silicon wafers, including:

• Reduced parasitic capacitance: Improving speed and power efficiency of transistors
• Improved isolation of transistors
• Increased radiation hardness, protecting transistors from damage

PI-KEM supplies a range of SOI wafers, manufactured to customer specifications.

Product Overview

Silicon is a widely used substrate material in various fields, including electronics, photonics, and biomedicine. Its unique properties, such as its high electrical conductivity, optical transparency, and biocompatibility, make it an ideal material for a wide range of applications.

PI-KEM can offer silicon in forms for use as a substrate. All parts are manufactured to customer specifications.

Form:

• Windows
• Custom components
• Blocks

Germanium single crystal components also available