1-8. (canceled)
9. A composite substrate comprising:
a first material; and
a second material differing in melting point from the first material; wherein
in an end surface of the substrate, an interface between the first material and the second material is covered with a solidified melt of the first material or the second material.
10. The composite substrate of claim 9, wherein the first material is resin and the second material is glass, and an interface between the resin and the glass in the end surface of the substrate is covered with a solidified melt of the glass.
11. The composite substrate of claim 9, wherein the first material is resin and the second material is glass, and the end surface of the substrate is covered with a solidified melt of the glass.
12. The composite substrate of claim 9, wherein the first material is thermoplastic resin, and in the end surface of the substrate, an interface between the thermoplastic resin and the second material is covered with a solidified melt of the thermoplastic resin.
13. The composite substrate of claim 9, wherein the composite substrate has a layered structure of a first material layer including the first material and a second material layer including the second material, and in the end surface of the substrate, an interface between the first material layer and the second material layer is covered with a solidified melt of the first material or the second material.
14. The composite substrate of claim 9, further comprising a coat layer on at least one surface of the composite substrate.
15. A display device comprising the composite substrate of claim 9.
16. A method of manufacturing a composite substrate, comprising the steps of:
preparing a mother composite substrate including a first material and a second material differing in melting point from the first material; and
irradiating with a laser beam a predetermined area where the mother composite substrate is to be cut to heat the predetermined area to a temperature higher than or equal to a higher one of melting points of the first material and the second material for cutting the mother composite substrate in the predetermined area.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for updating a shadow master boot record in a storage device, the method comprising:
performing the following in a storage device having a memory with a first storage area having N sectors allocated to it for a shadow master boot record:
receiving updated sectors of the shadow master boot record from a host device;
writing the updated sectors in a second storage area of the memory;
determining a highest written sector (M) in the first storage area that is occupied by the shadow master boot record, wherein M<N;
copying the non-updated sectors of the shadow master boot record from the first storage area to the second storage area, wherein only the non-updated sectors up to the highest written sector (M) are copied; and
designating the second storage area as storing a current version of the shadow master boot record.
2. The method of claim 1, wherein the storage device receives non-consecutive updated sectors from the host device, and wherein the method further comprises copying the non-updated sectors in between writes of the non-consecutive updated sectors.
3. The method of claim 1, wherein the storage device determines the highest written sector (M) in the first storage area by determining which sectors in the first storage area are signed as unwritten.
4. The method of claim 1, wherein each sector is associated with an indicator indicating whether or not the sector was written to, and wherein a non-updated sector from the first storage area is copied to the second storage area only if the indicator associated with that sector indicates that the sector was written to.
5. The method of claim 1, wherein the method further comprises, in response to a command from the host device to revert the storage device to a default setting, setting the highest written sector (M) to 0 and signing all the sectors in the first storage area as unwritten.
6. The method of claim 1, wherein at least one updated sector received from the host device contains an update to some, but not all, of a sector in the first storage area, and wherein the method further comprises:
reading the sector from the first storage area;
modifying a part of the sector; and
writing the modified sector to the second storage area.
7. The method of claim 1, wherein at least one updated sector received from the host device contains an update to some, but not all, of a sector in the first storage area, and wherein the method further comprises:
copying the sector in its original form from the first storage area to the second storage area;
reading the sector from the second storage area;
modifying a part of the sector; and
writing the modified sector back to the second storage area.
8. The method of claim 1, wherein N is 128 MB.
9. The method of claim 1, wherein the first and second storage areas are in a private area of the memory.
10. The method of claim 1, wherein the storage device is embedded in the host device.
11. The method of claim 1, wherein the storage device is removably connectable to the host device.
12. The method of claim 1, wherein the storage device is a solid-state drive.
13. The method of claim 1, wherein the order of the non-updated sectors copied into the second storage area is the same as the order of the non-updated sectors in the first storage area.
14. A storage device comprising:
an interface configured to communicate with a host device;
a memory having a first storage area having N sectors allocated to it for a shadow master boot record and having a second storage area; and
a controller in communication with the interface and the memory, wherein the controller is configured to:
receive updated sectors of the shadow master boot record from the host device;
write the updated sectors in the second storage area;
determine a highest written sector (M) in the first storage area that is occupied by the shadow master boot record, wherein M<N;
copy the non-updated sectors of the shadow master boot record from the first storage area to the second storage area, wherein only the non-updated sectors up to the highest written sector (M) are copied; and
designate the second storage area as storing a current version of the shadow master boot record.
15. The storage device of claim 14, wherein the storage device receives non-consecutive updated sectors from the host device, and wherein the controller is further configured to copy the non-updated sectors in between writes of the non-consecutive updated sectors.
16. The storage device of claim 14, wherein the storage device determines the highest written sector (M) in the first storage area by determining which sectors in the first storage area are signed as unwritten.
17. The storage device of claim 14, wherein each sector is associated with an indicator indicating whether or not the sector was written to, and wherein a non-updated sector from the first storage area is copied to the second storage area only if the indicator associated with that sector indicates that the sector was written to.
18. The storage device of claim 14, wherein the controller is further configured to, in response to a command from the host device to revert the storage device to a default setting, set the highest written sector (M) to 0 and sign all the sectors in the first storage area as unwritten.
19. The storage device of claim 14, wherein at least one updated sector received from the host device contains an update to some, but not all, of a sector in the first storage area, and wherein the controller is further configured to:
read the sector from the first storage area;
modify a part of the sector; and
write the modified sector to the second storage area.
20. The storage device of claim 14, wherein at least one updated sector received from the host device contains an update to some, but not all, of a sector in the first storage area, and wherein the controller is further configured to:
copy the sector in its original form from the first storage area to the second storage area;
read the sector from the second storage area;
modify a part of the sector; and
write the modified sector back to the second storage area.
21. The storage device of claim 14, wherein N is 128 MB.
22. The storage device of claim 14, wherein the first and second storage areas are in a private area of the memory.
23. The storage device of claim 14, wherein the storage device is embedded in the host device.
24. The storage device of claim 14, wherein the storage device is removably connectable to the host device.
25. The storage device of claim 14, wherein the storage device is a solid-state drive.
26. The storage device of claim 14, wherein the order of the non-updated sectors copied into the second storage area is the same as the order of the non-updated sectors in the first storage area.