Etched Silicon Wafers for Polishing

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Etched Silicon Substrates

Most single side polished wafers backside is etched. This means that the wafer's backside is not polished. The surface is rough. Etched is the step before polishing. The price of single side polished, back side etched wafer are less expensive than double side polished wafers all other specs being equal.

UniversityWafer, Inc. has a very large selection. Please provide us with your specs and quantity or you can also buy online here!

Etched Silicon Substrates Inventory

Below is just some of the etched silicon wafers that we have in stock.

Item Qty Price
$/wafer
Type/Dopant Orien Diam
(mm)
Thck
(μm)
POL Res Ωcm Specs
N445 7 $150.00 n-type Si:P [112-5.0° towards[11-1]] ±0.5° 6" 875 ±10 E/E FZ >3,000 SEMI, 1Flat (47.5mm), TTV<4μmSurface Chips
S5622 14 $69.60 n-type Si:P [100] 6" 1,300 ±10 E/E FZ 0.01-0.05 SEMI notch, Empak cst
J668 66 $19.60 p-type Si:B [111] ±0.5° 6" 675 E/E 0.010-0.025 SEMI, 1Flat (57.5mm), Empak cst, TTV<5μm
5814 202 $15.00 n-type Si:P [100] 6" 925 ±15 E/E 5-35 {12.5-29.7} JEIDA Prime, Empak cst, TTV<5μm
S5614 50 $38.00 p-type Si:B [100] 5" 635 ±15 E/E FZ >5,000 2Flats, Empak cst
5744 241 $28.00 p-type Si:B [100] 5" 920 ±10 E/E FZ >1,000 2Flats, Empak cst
S5802 63 $15.00 p-type Si:B [100] 5" 600 ±10 E/E 2.0-3.5 SEMI, 1Flat, coin roll
X7135 50 $8.00 p-type Si:B [100] 5" 710 E/E SEMI Test, 1Flat, Empak cst
7188 275 $6.00 n-type Si:As [111] 5" 625 E/E 0.001-0.005 1Flat, Empak cst
X7134 63 $5.00 n-type Si:As [100] 5" E/E 0.001-0.005 SEMI Test, 1Flat, in opened Empak cst
X7167 150 $5.00 n-type Si:Sb [100] 5" 740 E/E SEMI 2Flats (2nd @135°), in opened Empak cst, 125.63mm diameter
S5798 15 $40.00 n-type Si:P [100] 4" 915 ±10 E/E FZ 2,000-3,000 1Flat at [100], Empak cst
B987 11 $96.00 n-type Si:P [112-5° towards[11-1]] ±0.5° 4" 795 E/E FZ >100 SEMI, 1Flat, in Empak, TTV<4μm, Lifetime>2,000μs
5618 200 $33.60 n-type Si:P [100] 4" 737 ±12 E/E FZ 8.8-11.2 SEMI, 2Flats, Empak cst
2932 19 $23.20 n-type Si:P [111] ±0.5° 4" 500 ±13 E/E FZ 6.03-7.37 SEMI, 2Flats
TS035 168 $15.00 p-type Si:B [110] ±0.2° 4" 605 ±10 E/E 30-60 {33-41} Ready-to-polish, 2 SEMI Flats: PF@<111>±0.2°, SF @ <111> 109.5° CW from PF, TTV<2μm, in coin-roll between tissues
S7780 80 $19.80 p-type Si:B [100] 4" 350 E/E 7-14 SEMI Prime, 2Flats, Empak cst
S7797 100 $29.60 p-type Si:B [100] 4" 350 ±5 E/E 7-14 SEMI Prime, 2Flats, Empak cst, cannot be polished
S5841 20 $15.60 p-type Si:B [100-0.5°] 4" 590 ±10 E/E 1-3 SEMI Prime, 2Flats
S5870 44 $15.60 p-type Si:B [100-0.5°] 4" 575 ±10 E/E 1-10 SEMI Prime, 2Flats, Empak cst
E408 25 $4.00 p-type Si:B [100] 4" 600 E/E 1-100 SEMI Test, 1Flat, Empak cst, No Edge-Rounding
6838 70 $10.00 p-type Si:B [100] 4" 545 ±10 E/E 1-10 SEMI Prime, 2Flats, Empak cst
7221 100 $10.00 p-type Si:B [100] 4" 560 ±10 E/E 1-10 SEMI Prime, 2Flats
5833 375 $8.80 p-type Si:B [100] 4" 300 E/E 0.01-0.02 SEMI Prime, 2Flats, Empak cst, TTV<4μm
S5763 11 $15.00 n-type Si:P [100] ±1° 4" 465 ±10 E/E 1-3 SEMI, 1Flat, Empak cst