For the complete documentation index, see llms.txt. This page is also available as Markdown.

BOM

Subsystem
Cost as built
Cost with recommended substitutions

Chamber + Magnetron

$974.17

~

Pumping System + Vacuum Gauge

$11,399.86

$3,665.99

Gas Flow Components

$4,957.0

$2,145.9

Power Supply + Mathcing Network

$1,025.88

~

Total

$18,356.91

$7,811.94

The cheaper subs were not made in the CMU version because most expensive components were already available to us from past systems that could be thrifted.

Chamber + Magnetron

Part
#
Link
Price ($)
Role

Aluminum disk (1/2" thick, 9" diameter)

2

72.23

Top Plate and Bottom Plate

Pyrex cylinder with flame polished ends(8.86" (225mm) OD, .275" (7mm) thick, 8" long)

1

225

Chamber walls

Viton "L" gasket (BJLGV-8)

2

155.6

Sealing between cylinder and top/bottom plates

Aluminum plate (.63" thick, 6"x6")

1

4.93

Substrate stage

Aluminum threaded rods (1/4"-20 thread, 8" long, 5 pack)

1

12.5

Support substrate stage

316 Stainless steel wing nuts (1/4"-20 threaded, 5 pack)

2

12.72

Support substrate stage

Aluminum Sheet (6"x24" .032")

1

12.95

Used for magnetron atmosphere side ground box, dark space shield plate, and substrate shutter

Vented cup point screw (18-8 stainless steel, 10-32 threaded 1/2" long, 5 pack)

1

6.33

Supports dark space shield plate, vented to avoid trapped air

Wing nuts (316 stainless steel, 10-32 threaded)

1

5.5

Supports dark space shield plate

Washers (Aluminum, 1.25" ID, 2.25" OD, .16" thick, 5 pack)

1

10.17

Stacked to set dark space shielding distance

N52SH Nedymium disk magnet (1" diamter, 1/8" thick)

1

4.30

Center magnet

N42SH Nedymium disk magnets (1/4" diamter, 1/8" thick)

8

4.8

Outer magnets

Alumina washers (2.5" OD, 1.062" ID, 1/8" thick)

2

25

Fills space between side of target/magnet block, and side walls. Protects viton gasket from metal deposition and plama degredation

Plate (low carbon steel, 1/16" thick, 3"x3")

1

5.69

Cathode plate, pole piece, supports magnets

PEEK Socket head screws (1/4"-20, 3/8" long)

4

23.48

Secures Cathode plate into top plate, compresses gasket

Aluminum socket head screws (4-40 threaded, 1/4" long, 10 pack)

1

12.81

Holds down magnetron atmosphere side ground box

Nylon screws (M4 threaded, 20 mm long, 100 pack)

17.19

Secures fans to ground box without shorting to cathode plate.

KF16 Blanks

4

1.4

Sealing unused KF16 Bulkhead ports

Flared collar thumb screw (1/4"-28 threaded, 18-8 Stainless steel, 1-1/4" long)

1

7.35

Substrate Shutter

Viton O rings (1/4" ID, 12" OD, 1/8" thick, 25 pack)

1

17.44

Substrate shutter sealing

Aluminum nuts (1/4"-28 threaded, 10 pack)

1

14.34

Substrate shutter

DN100CF Gasket

1

45.00

Seal between pump and bottom plate

Total

$974.17

Pumping System + Vacuum Gauge

HiCube 300 Eco Pumping Station

1

10733.87

Solo turbo pumps can regularly be found on ebay for ~$2000. They would need to have a backing pump added in series, which could cost up to $1000 more including any needed connections or controls. So this item could be subbed for ~$3000

Total

$11,399.86

Gas Flow Components

Alicat MC Series MFC (100 SCCM Ar)

1

1544.4

OEM versions of the same MFC (no display so would require controls) have been quoted for ~500, or could be sourced via ebay. Additionally, only 1 MFC is needed for non reactive sputteirng processes. So assuming 1 OEMor 2nd hand MFC, this is subed for ~$500.

1/4" VCR Male to 1/4" Male NPT adapters

2

31.52

1/4" VCR Male to 1/8" Male NPT adapters

2

31.6

Flexible Metal gas line 1/4" male VCR ends

2

161.15

Cheaper pumbing can be done with bent SS tube or polypro tubes and compression fittings for ~$100 total

Total

$4,957.09

(UHP Ar and O2 cylinders not included in BOM)

Power Supply and Matching Network

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