Silicon Wafer fabrication

Description

These are the instructions to the creation of silicon wafers and their initial processing steps.

Recipes

The starting point for the silicon wafers is a sand, quartz or a mineral rich in silica.

Step 1.0 Get some sand, quartz or a mineral rich in silica.

Step 1.1 Purify the sand, quartz ou silica rich mineral in to silica sand in the crafting table.

Recipes

Crafting Table

Step 1.2 Use nine silica sand portions in the furnace to create a silicon ingot.

Furnace

Outputs	Components	Recipe	Do you want to know more?
Silicon Ingot	Silica Sand		Sand to Silica (Wikipedia) Silicon (Wikipedia) Sand to Silicon (Video)

Step 1.3 Use nine silicon ingots in the crafting table to obtain a silicon block .

Crafting Table

Outputs	Components	Recipe	Do you want to know more?
Block of Silicon	Silicon Ingot		Silicon (Wikipedia) Monocrystalline Silicon (Wikipedia) Sand to Silicon (Video)

Step 1.4 Use a silicon block in the furnace to obtain the silicon boule .

Furnace

Step 1.5 Use a silicon boule in the stonecutter to obtain twenty five unpolished silicon wafers.

Stonecutter

Step 1.6 Polish the unpolished silicon wafers in the chemical mechanical polisher.

Chemical Mechanical Polisher

Step 1.7 In this step, we will bombard the wafer with ions to insert them in the silicon. Take the the silicon wafers to the ion implanter for doping. You have two choices, use boron and indium to create P-type wafers and phosphorus, arsenic and antimony to create N-type wafer. To know which to choose, look to the end of this page.

Ion Beam

Step 1.8 The implantation process disorganized the silicon crystal structure. To smooth and repair the silicon crystal take the doped silicon wafers to the annealing furnace with a argon cartridge.

Annealing Furnace

Outputs	Components	Recipe	Do you want to know more?
Silicon Wafer (P-type)	Unannealed Silicon Wafer (P-type)	1
Silicon Wafer (N-type)	Unannealed Silicon Wafer (N-type)	1

Step 1.9 To grow a layer of silicon dioxide take the doped and annealed silicon wafers to the oxygen furnace with a oxygen cartridge. The dielectric layer of silicon dioxide is an isolator, it will prevent electrons to pass trough.

O2 Furnace

Outputs	Components	Recipe	Do you want to know more?
Silicon Wafer (P-type) SiO2	Silicon Wafer (P-type)	1
Silicon Wafer (N-type) SiO2	Silicon Wafer (N-type)	1

You now have a Silicon wafer (P-type) SiO2 or a Silicon wafer (N-type) SiO2. These are the starting components of semiconductor fabrication that fabs use. The Silicon wafer (P-type) SiO2 can be used to create not-and logic gates (NANDs) or arithmetic logical units (ALUs). The Silicon wafer (N-type) SiO2 can be used to create the controller chip.

History

Semiconductor module 1.0

Links to learn more

Introduction to chemical processes for micro- and nanofabrication course from Chris Mack (Videos)

Semiconductor fabrication 101 online course from Purdue University (MOC)

Semiconductor manufacturing from Duane Boning (Course materials)

Fundamentals of semiconductor manufacturing and process control from Gary S. May and Costas J. Spanos (Book PDF)

References

Microcontroller Wikipedia page