I'd like a quote for 10x of wafer #3328 (100mm Prime Undoped high Resistivity Float Zone Si Wafer), with some customization. Firstly, I'd like it thinned to 270um. Secondly, I need it DSP. I'm also curious about your oxide capabilities and the added cost. I will need an oxide hard mask for DRIE, and I am determining if it makes more sense for me to add oxide myself or not. Can you do a 3um thermal oxide? and what is the additional cost. Thank you!
What Float Zone Silicon Wafer Do I Need?
A PhD candidate requested a quote for the following.
Reference #321322 for specs and pricing.![]()
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Float Zone Silicon Used for THz Applications
Researchers have used our float zone wafer spec below. Please ask for pricing.
Item
GY50d
Description
Silicon wafers, per SEMI, P/P 2"Ø×1,000±25µm, FZ Intrinsic undoped Si [100]±0.5°, Ro > 10,000 Ohmcm, Both-sides-polished, SEMI primary Flat (one):15.88±1.65mm @ 110±1°, Single wafer boxes, MCC Lifetime>1,000µs.
Price: Reference #266760. For GaP wafers click.
Helping Researchers Scope Their FZ Needs
This page specifies the requirements of n-type silicon wafers, having crystal Ori
<100> & <111>, to be used in the manufacture of UV/Photovoltaic and other Silicon Photodetectors.
2 REQUIREMENTS
2.1 2" Wafer Specifications
Ori: <100> Material growth method: Float zone Diameter: 50.8mm ±1mm
Dopant species: N-type/Phosphorous
Primary flat: Per SEMI standard Dislocation Density: 500/cm2 maximum Parallelism (Taper): 5mm maximum
Edges: Wafer edges to be machined to a rounded profile.
For lapped surfaces: Surface to be chemically etched sufficiently to remove damage. For Resistivity, Lifetime, Thickness and Finish requirements, see Table 1.
| Item # | RES (W cm) |
LIFETIME (µ SEC.) | THICK (µm) |
Pol | |||||||||
| 1 | 300 ±10% | 1000 min. | 430 ±25 | Lapped & etched both sides | |||||||||
| 2 | 10±10% | 500 min. | 430 ±25 | Same as dash 1 | |||||||||
| 3 | 300±10% | 1000 min. | 405 ±25 | Lapped & etched one side, polished other side | |||||||||
| 4 | 300±10% | 1000 min. | 250 ±25 | Same as dash 3 | |||||||||
| 5 | 300±10% | 1000 min. | 300 ±10 | Same as dash 3 | |||||||||
| 6 | 300±10% | 1000 min. | 380 ±12 | Same as dash 1 | |||||||||
2.2 4" Wafer Specifications
a) GENERAL
Ori: <100> [for N<100> Type, see Table 2]
<111> [for N<111> Type, see Table 3]
Material growth method: Float Zone Si
Diameter: 100mm ± 1mm
Dopant species: N-type/Phosphorous
Primary flat: 30-35mm @ [110] ± 1
Secondary flat: Per SEMI Standard
Resistivity: Per Table 2 for N <100> / Per Table 3 for N <111>
Radial Resistivity Variation (RRV): <10%
Thickness: Per Table 2 for N <100> / Per Table 3 for N <111>
Lifetime: Per Table 2 for N <100> / Per Table 3 for N <111>
Parallelism (Taper): 10µm maximum
Edges: Wafer edges to be machined to a rounded profile.
Surface Finish: Per Table 2 for N <100> / Per Table 3 for N <111>
For lapped surfaces, the wafer surface should be chemically etched to remove all damage and meet SEMI M1-94 defect specifications.
For polished surfaces, sufficient polishing should remove lapping-induced defects and comply with SEMI M1-94 requirements.
Structural (Crystal Perfection)
- Dislocation Density (EPD): None typical; 2/cm² maximum
- Lineage: None typical
- Slip: None typical
- Swirls: None typical
- Stacking Faults: None typical
- Oxide Precipitates (BMD): None typical
- Point Defects: None typical; 2/cm² maximum
ASTM F154-88 and SEMI standards apply for all structural defect definitions.
Table 2
Resistivity, Lifetime, Thickness and Finish Requirements for N <100> Type
| DASH # | MATERIAL GRADE | RESISTIVITY (W cm) |
LIFETIME (µ sec.) |
THICKNESS (µm) |
FINISH | |||||||||
| 10 | FZ-NTD | 300 ±10% | 300 min. > 600 typ. |
300 ±15 | Lapped & etched one side, polished other side | |||||||||
| 11 | FZ-NTD | 300 ±10% | 300 min. > 600 typ. |
400 ±15 | Same as dash 10 | |||||||||
| 12 | FZ-NTD | 300 ±10% | 300 min. > 600 typ. |
500 ±15 | Same as dash 10 | |||||||||
| 13 | FZ-HPS | 10 ±15% | 500 min. > 1000 typ. |
400 ±15 | Same as dash 10 | |||||||||
| 14 | FZ-HPS | 1 ±15% | 500 min. > 1000 typ. |
400 ±15 | Same as dash 10 | |||||||||
| 15 | FZ-NTD | 1,000 ±10% | 300 min. > 750 typ. |
400 ±15 | Same as dash 10 | |||||||||
| 16 | FZ-NTD | 1,000 ±10% | 300 min. > 750 typ. |
300 ±20 | Same as dash 10 | |||||||||
| 17 | FZ-NTD | 100 ±10% | 150 min. > 300 typ. |
400 ±15 | Same as dash 10 | |||||||||
| 18 | FZ-NTD | 300 ±10% | 300 min. > 600 typ. |
400 ±15 | Polished both sides | |||||||||
| 19 | FZ-NTD | 500 ±10% | 300 min. > 750 typ. |
400 ±15 | Same as dash 10 | |||||||||
| 20 | FZ-HPS | 5,000 ±30% | > 1,000 | 400 ±15 | Same as dash 10 | |||||||||
| CAGE CODE CODE CAGE 6 9 2 7 6 |
NO. DE DOCUMENT/DOCUMENT NO. 2 5 7 5 5 2 6 REV FEUILLE DE SHEET 6 OF 8 10 |
|||||||||||||
TABLE 3
RESISTIVITY, LIFETIME, THICKNESS AND FINISH REQUIREMENTS [FOR N <111> -TYPE]
| DASH # | MATERIAL GRADE | RESISTIVITY (W cm) |
LIFETIME (µ sec.) |
THICKNESS (µm) |
FINISH | |||||||||||||
| 30 | FZ-HPS | 1,000 ±25% | >1,000 typ. | 300 ±15 | Lapped & etched one side, polished other side |
|||||||||||||
| 31 | FZ-HPS | 3,000 ±30% | >1,000 typ. | 300 ±15 | Same as dash 30 | |||||||||||||
| 32 | FZ- HPS | 5,000 ±30% | >1,000 typ. | 300 ±15 | Same as dash 30 | |||||||||||||
| 33 | FZ-HPS | 5,000 ±30% | >1,000 typ. | 250 ±15 | Polished both sides | |||||||||||||
| 34 | FZ-HPS | 7,500 ±30% | >1,000 typ. | 300 ±15 | Same as dash 30 | |||||||||||||
| 35 | FZ-HPS | 7,500 ±30% | >1,000 typ. | 250 ±15 | Same as dash 30 | |||||||||||||
| 36 | FZ-HPS | >10,000 <20,000 | >1,000 typ. | 300 ±15 | Same as dash 30 | |||||||||||||
| 37 | FZ-HPS | >10,000 <20,000 | >1,000 typ. | 250 ±15 | Same as dash 30 | |||||||||||||
| 38 | FZ-HPS | >10,000 <20,000 | >1,000 typ. | 200 ±15 | Same as dash 30 | |||||||||||||
| 39 | FZ-HPS | >10,000 | >1,000 typ. | 300 ±15 | Same as dash 30 | |||||||||||||
| 40 | FZ-HPS | 300 ±10% | 300 min. >600 typ. |
300 ±15 | Same as dash 30 | |||||||||||||
| 41 | FZ-NTD | 1200–1650 | >2000 typ. | 400 ±15 | Same as dash 30 | |||||||||||||
| 42 | FZ-NTD | 1200-1650 | >300 typ. | 300 ±15 | Same as dash 30 | |||||||||||||
| CAGE CODE CODE CAGE 6 9 2 7 6 |
NO. DE DOCUMENT/DOCUMENT NO. 2 5 7 5 5 2 6 REV FEUILLE DE SHEET 7 OF 8 10 |
|||||||||||||||||
Configuration and Quality Assurance Provisions
Identification
- Manufacturer name, logo, trademark, or code.
- Part number and product description.
- Excelitas part number.
- Identification requirements per SEMI M1.12.2-94.
Traceability & Certification
- Ingot, batch, log, and material control references supplied.
- Certificate of Conformance provided with shipment.
- External processing sources identified when applicable.
- Resistivity, lifetime, thickness, diameter, and taper reports supplied.
- Crystallographic perfection reports supplied.
- Applicable SEMI standards followed for testing and qualification.