Prism, optical device, method for manufacturing prism, and method for manufacturing package device
AssigneeNippon Electric Glass Co., Ltd.
InventorYoshimasa YAMAGUCHI
Life of this patent
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Abstract
A prism is provided with which the positional accuracy can be effectively enhanced. The prism includes: a prism body 2 having a bottom surface 2a and an inclined surface 2b connected to the bottom surface 2a; and an adhesive film 3 provided on the bottom surface 2a, the adhesive film 3 including a first layer portion positioned on a side facing the prism body 2 and a second layer portion 6 including at least one of an Au layer or an Sn layer, the first layer portion 5 and the second layer portion 6 directly or indirectly stacked.
Claims28
A prism comprising:
- a prism body having a bottom surface and an inclined surface connected to the bottom surface;
- and
- an adhesive film provided on the bottom surface,
- the adhesive film including
- a first layer portion positioned on a side facing the prism body and
- a second layer portion including at least one of an Au layer or an Sn layer,
- the first layer portion and the second layer portion directly or indirectly stacked.
A prism to be mounted on a package, the prism comprising:
- a prism body having a bottom surface and an inclined surface connected to the bottom surface;
- and
- an adhesive film provided on the bottom surface,
- the adhesive film including
- a first layer portion positioned on a side facing the prism body and
- a second layer portion being an Au—Sn layer including an alloy of Au and Sn, the second layer portion having a thickness of 2.5 μm or more and 5.9 μm or less,
- the first layer portion and the second layer portion directly or indirectly stacked.
A method for manufacturing a prism, the method comprising a step of providing an adhesive film on a bottom surface of a prism body having the bottom surface and an inclined surface connected to the bottom surface,
- the step including a step of forming a first layer portion including a metal material on the bottom surface and a step of directly or indirectly stacking the first layer portion and a second layer portion including a metal material, wherein
- a component contained in the metal material included in the first layer portion is different from a component contained in the metal material included in the second layer portion, and
- the second layer portion includes at least one of an Au layer or an Sn layer.
Dependencies are inferred from the claim text.