摘要:
A method of manufacturing a semiconductor article comprises steps of forming a diffusion region at least on the surface of one of the sides of a silicon substrate by diffusing an element capable of controlling the conduction type, forming a porous silicon layer in a region including the diffusion region, preparing a first substrate by forming a nonporous semiconductor layer on the porous silicon layer, bonding the first substrate and a second substrate together to produce a multilayer structure with the nonporous semiconductor layer located inside, splitting the multilayer structure along the porous silicon layer but not along the diffusion region and removing the porous silicon layer remaining on the split second substrate.
摘要:
A method of manufacturing a semiconductor article comprises steps of forming a diffusion region at least on the surface of one of the sides of a silicon substrate by diffusing an element capable of controlling the conduction type, forming a porous silicon layer in a region including the diffusion region, preparing a first substrate by forming a nonporous semiconductor layer on the porous silicon layer, bonding the first substrate and a second substrate together to produce a multilayer structure with the nonporous semiconductor layer located inside, splitting the multilayer structure along the porous silicon layer but not along the diffusion region and removing the porous silicon layer remaining on the split second substrate.
摘要:
A semiconductor substrate having a managed surface shape is manufactured. In a method of manufacturing a semiconductor substrate by bonding a device substrate (1) to a handle substrate (5), the surface shape of the handle substrate on the bonding side is nearly equal to that of the resultant semiconductor substrate. In a surface shape measuring method for a bonded substrate stack manufactured by bonding a first substrate and a second substrate via an insulating layer, a pseudo bonded substrate stack is manufactured by bonding the first and second substrates without sandwiching any insulating layer, the surface shape of the pseudo bonded substrate stack is measured, and the measurement value is regarded as the surface shape of the bonded substrate stack.
摘要:
The present invention provides a production method of a photoelectric conversion device, which comprises a step of forming an uneven shape on a surface of a substrate, a step of providing a separation layer maintaining the uneven shape on the substrate, a step of forming a semiconductor film maintaining the uneven shape on the separation layer, and a step of separating the semiconductor film from the substrate at the separation layer, wherein the step of forming the uneven shape on the surface of the substrate is a step of forming the substrate having the uneven shape on the surface by anisotropic etching of the substrate with the separation layer remaining after the separation. The present invention also provides a photoelectric conversion device produced by the above method.
摘要:
A method for preparing a semiconductor member, which method comprises: providing a first substrate having a porous monocrystalline silicon layer (11) and a non-porous monocrystalline silicon layer (12); bonding the first substrate to a second light-transmissive substrate so that the non-porous monocrystalline silicon layer (12) forms an inner layer of the resulting multi-layer structure; and chemically etching the porous monocrystalline silicon layer using a chemical etching liquid comprising hydrofluoric acid to remove the porous monocrystalline silicon layer from the multilayer structure. The chemical etching liquid is a solution selected from one of the following: a) hydrofluoric acid and hydrogen peroxide; or b) hydrofluoric acid, hydrogen peroxide and an alcohol; or c) buffered hydrofluoric acid and hydrogen peroxide; or d) buffered hydrofluoric acid, hydrogen peroxide and an alcohol.
摘要:
Openings are formed at the bottom of an anodizing container. A shower-type current path forming mechanism is arranged at the lower portion of the anodizing container. The mechanism has a pressure vessel. A shower head is arranged at the upper portion of the pressure vessel. A conductive solution in a shower form is injected or discharged from the shower head to form a liquid electrode under the lower surface of a substrate. Accordingly, a current flows between a cathode and an anode to anodize the substrate. The apparatus also has a mechanism which makes a chemical solution overflow from a chemical solution container to form a flow of the chemical solution near the lower surface of the substrate.
摘要:
A bonded substrate stack formed by bonding first and second substrates is appropriately separated. A first substrate (10) having a porous layer inside and a single-crystal Si layer and insulating layer on the porous layer is brought into tight contact with a second substrate while shifting their central positions to prepare a bonded substrate stack (30) having a projecting portion at which the outer peripheral edge of the first substrate (10) projects outside that of the second substrate (20). First, a fluid is ejected to the projecting portion to form a separation start portion (40), and then, separation is started from the separation start portion (40) while rotating the bonded substrate stack (30).
摘要:
There is provided a method of manufacturing a substrate which has a partial insulating layer under a semiconductor layer. After the first substrate (10c) is formed, it is bonded to the second substrate (20), thereby forming a bonded substrate stack (30). Then, the bonded substrate stack (30) is split at a separation layer (15). In the step of forming the first substrate (10c), a partial insulating layer (12a) is formed on the substrate, a single-crystal Si layer (13) is grown in the partial insulating layer (12a), and a polysilicon layer (14) is grown on the partial insulating layer (12a). After that, ions are implanted into the substrate, thereby forming the separation layer (15) inside the substrate.