1. A semiconductor device comprising:
a substrate of a first conductivity;
a first region of a second conductivity formed over the substrate;
a second region of the second conductivity grown from the first region;
a third region of the first conductivity formed in the second region;
a first drainsource region of the second conductivity formed in the third region;
a first trench comprising:
a dielectric layer formed in a bottom portion of the first trench; and
a gate region formed in an upper portion of the first trench;
a second drainsource region of the second conductivity formed in the second region and on an opposite side of the first trench from the first drainsource region; and
a second trench coupled between the second drainsource region and the second region, wherein the second trench is of a same depth as the first trench.
2. The semiconductor device of claim 1, wherein a width of the second trench is greater than a width of the first trench.
3. The semiconductor device of claim 1, wherein the second trench is configured to generate an accumulation layer along sidewalls of the second trench.
4. The semiconductor device of claim 1, wherein the first region is a buried layer.
5. The semiconductor device of claim 1, wherein the second region is an epitaxial layer.
6. The semiconductor device of claim 1, wherein the third region is a body region.
7. The semiconductor device of claim 1, further comprising:
a fourth region having the first conductivity formed in the third region, wherein the fourth region is coupled to the first drainsource region.
8. The semiconductor device of claim 1, wherein the gate region is coupled to the second trench.
9. The semiconductor device of claim 1, wherein the dielectric layer comprises an oxide.
10. The semiconductor device of claim 1, wherein:
the first drainsource region is a source; and
the second drainsource region is a drain.
11. A device comprising:
a first drainsource region having a first conductivity;
a first gate formed in a first trench, wherein the first trench comprises a dielectric layer formed underneath the first gate;
a second drainsource region having the first conductivity, wherein the first drainsource region and the second drainsource region are formed on opposite sides of the first gate; and
a second trench, wherein:
the second trench is of a same depth as the first trench; and
the second trench and the first trench are formed on opposite sides of the second drainsource region.
12. The device of claim 11, further comprising:
a substrate of a second conductivity;
a first region of the first conductivity formed over the substrate;
a second region of the first conductivity grown from the first region, wherein the second drainsource region is formed in the second region; and
a third region of the second conductivity formed in the second region, wherein the first drainsource region is formed in the third region.
13. The device of claim 12, further comprising:
a body region having the second conductivity, wherein the body region is coupled to the first drainsource region.
14. The device of claim 11, wherein the first gate comprises:
a first gate dielectric layer formed in the first trench, wherein the first gate dielectric layer is formed over sidewalls of the first trench and an upper surface of the dielectric layer; and
a first gate electrode formed over the first gate dielectric layer.
15. The device of claim 11, wherein the second trench comprises polysilicon.
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 photocurable primer composition, comprising:
(a) a (meth)acrylate monomer component;
(b) a photoinitiator component; and
(a) a rubber component comprising the combination of a core shell rubber having a mean diameter in the range of about 100 to about 300 nm and a polyvinyl butyral component having a molecular weight of less than about 120,000 Mw.
2. A composition of claim 1, wherein the (meth)acrylate monomer component is selected from one or more of N,N-dimethyl acrylamide, phenoxy ethyl(meth)acrylate, tetrahydrofuryral(meth)acrylate, cyclohexyl(meth)acrylate, isobornyl(meth)acrylate, butyl(meth)acrylate, hydroxyethyl(meth)acrylate, and hydroxypropyl(meth)acrylate.
3. A composition of claim 1, wherein the (meth)acrylate monomer component is present in an amount of about 40 to about 80 weight percent.
4. A composition of claim 1, wherein the photoinitiator component is selected from 2,4,6 trimethylbenzoyldiphosphine oxide, 1-hydrocyclohexyl-phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-propan-1-one, 2-hydroxy-1-4-(2-hydroxyethoxy)phenyl-2-methyl-1-propanone, acetophenone and substituted acetophenones, benzoin and its alkyl esters, xanthone and substituted xanthones, diethoxy-acetophenone, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, diethoxyxanthone, chloro-thio-xanthone, N-methyl diethanol-amine-benzophenone, 1-benzoyl cyclohexanol, 2-benzyl-2-(dimethylamino)-1-4-(4-morpholinyl)phenyl-1-butanone; amino ketones, benzildimethyl-ketals, bis acyl phosphine oxide, metallocenes and benzophenones.
5. A composition of claim 1, wherein the photoinitiator component is present in an amount of about 1 to about 5 weight percent.
6. A composition of claim 1, wherein the core shell rubber has a core constructed of styrene butadiene rubber and a shell constructed of polyacrylate.
7. A composition of claim 1, wherein the rubber component is present in an amount of about 15 to about 35 weight percent.
8. A composition comprising:
(a) a (meth)acrylate monomer component;
(b) a photoinitiator component;
(c) a rubber component comprising the combination of a core shell rubber having a mean diameter in the range of 100 to about 300 nm and a polyvinyl butyral component having a molecular weight of less than about 120,000 Mw; and
(d) a cyanate ester component.
9. A composition of claim 8, wherein the cyanate ester component is selected from one or more of bisphenol E dicyanate ester, bisphenol F dicyanate ester, dicyclopentanediol dicyanate ester, 1,1\u2032-bis(4-cyanatophenyl)ethane), bisphenol-A cyanate ester resin, hexafluorobisphenol-A cyanate ester resin, tetramethylbisphenol-F cyanate ester resin, bisphenol-C cyanate ester resin, bisphenol-M cyanate ester resin, phenol novolac cyanate ester resin and dicyclopentadienyl-bisphenol cyanate ester resin.
10. A composition of claim 8, wherein the cyanate ester component is present in an amount of about 1 to about 10 weight percent.
11. A composition comprising:
(a) a (meth)acrylate monomer component;
(b) a photoinitiator component;
(c) a rubber component comprising the combination of a core shell rubber having a mean diameter in the range of 100 to about 300 nm and a polyvinyl butyral component having a molecular weight of less than about 120,000 Mw; and
(d) an amine component.
12. A composition of claim 11, wherein the amine component is an aromatic amine component or a cycloaliphatic diamine component.
13. A composition of claim 11, wherein the amine component is present in an amount of about 1 to about 5 weight percent.
14. A composition of claim 11 further comprising:
(e) a cyanate ester component.
15. A composition of claim 14, wherein the (meth)acrylate monomer component is present in an amount of about 20 to about 80 weight percent; the photoinitiator component is present in an amount of about 1 to about 5 weight percent; the rubber component is present in an amount of 15 to about 35 weight percent; the cyanate ester component is present in an amount of about 1 to about 10 weight percent; and the aminated diphenyl sulfone component is present in an amount of about 0.25 to about 5 weight percent.
16. A combination comprising:
(a) composition of claim 1; and
(b) a thermoplastic resin.
17. The combination of claim 16, further comprising one or more of a cyanate ester component and an aminated diphenyl sulfone.
18. A combination comprising:
(a) an article having coated as a layer on at least a surface thereof a B-staged version of the composition of claim 1;
(b) a thermoplastic resin in contact with the B-staged version of the composition.
19. The combination of claim 18, wherein the composition further comprises one or more of a cyanate ester component and an aminated diphenyl sulfone.
20. The combination of claim 18, wherein the article is constructed of aluminum.
21. The combination of claim 18, wherein the article is constructed of anodized aluminum.
22. A process for forming an injection molding about an article, comprising the steps of
(a) disposing into an injection molding cavity an article about which a thermoplastic material is to be molded into a shape; and
(b) injecting into the injection molding cavity in which is disposed the article the thermoplastic material at a temperature and pressure to permit the material to flow around and about the article in the mold and maintaining the mold under a temperature and pressure appropriate to permit the thermoplastic material to solidify,
wherein prior to disposition of the article, the article is primed with the composition of claim 1 and exposed to radiation in the electromagnetic spectrum appropriate to cure the composition.
23. An injection molded article formed form the process of claim 22.
24. The process of claim 22, wherein the article is constructed from glass.
25. The process of claim 22, wherein the article is constructed from aluminum.
26. The process of claim 22, wherein the article is constructed from anodized aluminum.