Coated Grids and Custom Coating Service from SPI

200 mesh, orthogonal, regular

Be sure to request either the µ-center mark or the >< center mark. If no pattern is selected, the default pattern will be the one with the µ-center mark. The filmed coatings will be as described, but note that what we have described as "Silicon Dioxide (SiO₂)/Monoxide (SiO)" is the result of an evaporation of SiO (silicon monoxide) at high vacuum and the end result is generally thought to be a combination of SiO₂ and SiO. In any case, for nearly all users of this product, what seems to be important is not knowing the precise composition, but knowing that in a plasma etcher, oxygen will not etch or otherwise harm the film.

The case for molybdenum grids:
These grids are used primarily for those doing high temperature studies, which would mean that any polymer, such as Formvar^®, would be degraded during the heating. Actually, SPI Supplies features the world's largest and most diverse selection of different molybednum TEM grids, so if you would prefer some other pattern, it too probably could be coated, and either for the same price or just slightly more. Just tell us what you want and we will return with a confirmation of pricing!

Please note:
For high temperature studies, the SPI Supplies^® Brand of Silicon Nitride Membrane Window Grids might be a better choice since one can do in situ heating experiments beyond 1000 C without the membrane rupturing.

Perforated support films:
We do offer not only holey carbon and lacey carbon coated grids, we also offer them as carbon/Formvar holey and carbon/Formvar lacey and for some applications, the latter are the more desirable. Of course if samples are being deposited from solvents, which could dissolve the Formvar, the grids with Formvar would not be recommended.

There are other options for perforated support systems. Many users worldwide, especially for electron tomography applications prefer the Quantifoil^® Micromachined Holey Carbon Grids which offer certain advantages.

The newest option is the use of the SPI Supplies^® Brand Perforated Silicon Nitride Membrane Window Grids. There might be some "sticker shock" here, as these grids are much more expensive than the more conventional grids, but they do permit certain types of work that can be done better (or not at all) some other way. For example, for cryo TEM studies on liquids, these grids are beyond compare. They are also the ultimate support grid for FIB lift-off samples. These are the only grids that one can perform, on the very same field of observation, AFM, FESEM and also TEM.

200 mesh regular (square)

Grid Type	Coating	SPI#	Each, pack	In Stock
Formvar^® Only
	Copper grids
	Pkg/25	3320C-CF	43.07	No
	Pkg/50	3320C-FA	74.98	No
	Pkg/100	3320C-MB	141.42	No

	Nickel grids
	Pkg/25	3320N-CF	51.71	No
	Pkg/50	3320N-FA	89.96	No
	Pkg/100	3320N-MB	169.73	No

	Gold grids
	Pkg/25	3320G-CF	62.75	No
	Pkg/50	3320G-FA	112.08	No
	Pkg/100	3320G-MB	213.98	No

	Molybdenum grids
	Pkg/25	3320M-CF	145.14	No
	Pkg/50	3320M-FA	262.40	No
	Pkg/100	3320M-MB	503.48	No


Formvar^®/Carbon Reinforced
	Copper grids
	Pkg/25	3420C-CF	45.23	No
	Pkg/50	3420C-FA	80.97	No
	Pkg/100	3420C-MB	148.50	No

	Nickel grids
	Pkg/25	3420N-CF	54.27	No
	Pkg/50	3420N-FA	97.16	No
	Pkg/100	3420N-MB	178.24	No

	Gold grids
	Pkg/25	3420G-CF	65.38	Yes
	Pkg/50	3420G-FA	119.28	No
	Pkg/100	3420G-MB	222.51	Yes

	Molybdenum grids
	Pkg/25	3420M-CF	150.55	No
	Pkg/50	3420M-FA	277.37	No
	Pkg/100	3420M-MB	521.17	No


Carbon only
	Copper grids
	Pkg/25	3520C-CF	62.13	No
	Pkg/50	3520C-FA	113.97	No
	Pkg/100	3520C-MB	216.38	No

	Nickel grids
	Pkg/25	3520N-CF	74.60	No
	Pkg/50	3520N-FA	136.73	No
	Pkg/100	3520N-MB	259.68	No

	Gold grids
	Pkg/25	3520G-CF	85.64	No
	Pkg/50	3520G-FA	158.87	No
	Pkg/100	3520G-MB	301.84	No

	Molybdenum grids
	Pkg/25	3520M-CF	192.44	No
	Pkg/50	3520M-FA	359.85	No
	Pkg/100	3520M-MB	690.90	No


Holey Carbon
	Copper grids
	Pkg/25	3620C-CF	65.24	No
	Pkg/50	3620C-FA	119.67	No
	Pkg/100	3620C-MB	227.20	No

	Nickel grids
	Pkg/25	3620N-CF	78.33	No
	Pkg/50	3620N-FA	143.57	No
	Pkg/100	3620N-MB	272.66	No

	Gold grids
	Pkg/25	3620G-CF	89.92	No
	Pkg/50	3620G-FA	166.81	No
	Pkg/100	3620G-MB	319.13	No

	Molybdenum grids
	Pkg/25	3620M-CF	202.46	No
	Pkg/50	3620M-FA	377.84	No
	Pkg/100	3620M-MB	725.45	No


Holey Formvar, Carbon Coated
	Copper grids
	Pkg/25	4072C-CF	62.13	No
	Pkg/50	4072C-FA	113.97	No
	Pkg/100	4072C-MB	216.38	No

	Nickel grids
	Pkg/25	4072N-CF	74.60	No
	Pkg/50	4072N-FA	136.73	No
	Pkg/100	4072N-MB	259.68	No

	Gold grids
	Pkg/25	4072G-CF	85.64	No
	Pkg/50	4072G-FA	158.87	No
	Pkg/100	4072G-MB	303.93	No

	Molybdenum grids
	Pkg/25	4072M-CF	192.82	No
	Pkg/50	4072M-FA	359.85	No
	Pkg/100	4072M-MB	690.90	No


Lacey Carbon
	Copper grids
	Pkg/25	3820C-CF	74.49	No
	Pkg/50	3820C-FA	136.92	No
	Pkg/100	3820C-MB	258.26	No

	Nickel grids
	Pkg/25	3820N-CF	89.43	No
	Pkg/50	3820N-FA	164.22	No
	Pkg/100	3820N-MB	309.94	No

	Gold grids
	Pkg/25	3820G-CF	100.53	No
	Pkg/50	3820G-FA	186.45	No
	Pkg/100	3820G-MB	354.19	No

	Molybdenum grids
	Pkg/25	3820M-CF	223.72	No
	Pkg/50	3820M-FA	417.29	No
	Pkg/100	3820M-MB	795.53	No


Lacey Formvar, Carbon Coated
	Copper grids
	Pkg/25	4073C-CF	74.49	No
	Pkg/50	4073C-FA	136.92	No
	Pkg/100	4073C-MB	258.26	No

	Nickel grids
	Pkg/25	4073N-CF	89.43	No
	Pkg/50	4073N-FA	164.22	No
	Pkg/100	4073N-MB	309.94	No

	Gold grids
	Pkg/25	4073G-CF	100.53	No
	Pkg/50	4073G-FA	186.45	No
	Pkg/100	4073G-MB	354.19	No

	Molybdenum grids
	Pkg/25	4073M-CF	223.72	No
	Pkg/50	4073M-FA	417.29	No
	Pkg/100	4073M-MB	795.53	No


Holey Silicon Dioxide (SiO₂) /Monoxide (SiO)
	Copper grids
	Pkg/25	4062C-CF	74.56	No
	Pkg/50	4062C-FA	136.73	No
	Pkg/100	4062C-MB	259.64	No

	Nickel grids
	Pkg/25	4062N-CF	89.52	No
	Pkg/50	4062N-FA	164.08	No
	Pkg/100	4062N-MB	311.63	No

	Gold grids
	Pkg/25	4062G-CF	104.54	No
	Pkg/50	4062G-FA	227.07	No
	Pkg/100	4062G-MB	434.22	No

	Molybdenum grids
	Pkg/25	4062M-CF	231.49	No
	Pkg/50	4062M-FA	431.81	No
	Pkg/100	4062M-MB	829.08	No


Silicon Dioxide (SiO₂) /Monoxide (SiO)
	Copper grids
	Pkg/25	3720C-CF	62.13	No
	Pkg/50	3720C-FA	113.97	No
	Pkg/100	3720C-MB	216.38	No

	Nickel grids
	Pkg/25	3720N-CF	74.60	No
	Pkg/50	3720N-FA	136.73	Yes
	Pkg/100	3720N-MB	259.68	No

	Gold grids
	Pkg/25	3720G-CF	85.70	No
	Pkg/50	3720G-FA	158.87	No
	Pkg/100	3720G-MB	303.93	No

	Molybdenum grids
	Pkg/25	3720M-CF	192.82	No
	Pkg/50	3720M-FA	359.85	No
	Pkg/100	3720M-MB	690.90	No

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Coated Grids and Custom Coating Service from SPI

200 mesh regular (square)

Formvar® Only

Formvar®/Carbon Reinforced

Carbon only

Holey Carbon

Holey Formvar, Carbon Coated

Lacey Carbon

Lacey Formvar, Carbon Coated

Holey Silicon Dioxide (SiO2) /Monoxide (SiO)

Silicon Dioxide (SiO2) /Monoxide (SiO)

Formvar^® Only

Formvar^®/Carbon Reinforced

Holey Silicon Dioxide (SiO₂) /Monoxide (SiO)

Silicon Dioxide (SiO₂) /Monoxide (SiO)