Electrical element mounting package, array package, and electrical device

Abstract

An electrical element mounting package includes a plate-like substrate and at least one base that protrudes from a front surface of the substrate and has a mounting surface on which an electrical element is mounted, wherein the substrate and the base are made of ceramics integrally. The electrical element mounting package includes an element terminal that is provided on the mounting surface of the base, a side conductor that is provided on a side surface of the base and extends in a thickness direction of the base, and a substrate-side via conductor that is provided inside the substrate and extends in a thickness direction of the substrate, wherein the element terminal, the side conductor, and the substrate-side via conductor are connected to one another.

1 . An electrical element mounting package comprising:
 a substrate that is plate-like; and   at least one base that protrudes from a front surface of the substrate, and that has a mounting surface on which an electrical element is mounted;   wherein the substrate and the at least one base are made of ceramics, and integrated with sintering.   
     
     
         2 . The electrical element mounting package according to  claim 1 , further comprising:
 an element terminal that is provided on the mounting surface of the at least one base;   a side conductor that is provided on a side surface of the at least one base, and that extends in a thickness direction of the at least one base; and   a substrate-side via conductor that is provided inside the substrate, and that extends in a thickness direction of the substrate, wherein   the element terminal, the side conductor, and the substrate-side via conductor are electrically connected.   
     
     
         3 . The electrical element mounting package according to  claim 1 , further comprising:
 an element terminal that is arranged on the mounting surface of the at least one base;   a base-side via conductor that is provided inside the at least one base, and that extends in a thickness direction of the at least one base; and   a substrate-side via conductor that is provided inside the substrate, and that extends in a thickness direction of the substrate, wherein   the element terminal, the base-side via conductor, and the substrate-side via conductor are electrically connected.   
     
     
         4 . The electrical element mounting package according to  claim 2 , further comprising
 a wiring conductor that is provided inside the substrate, and that extends in a surface direction of the substrate, wherein   the wiring conductor and the substrate-side via conductor are electrically connected.   
     
     
         5 . The electrical element mounting package according to  claim 4 , wherein the wiring conductor is arranged at a position closer to a back surface of the substrate than the front surface of the substrate. 
     
     
         6 . The electrical element mounting package according to  claim 4 , further comprising:
 a sealing metal film that is provided on the front surface of the substrate to surround the at least one base; and   a power supply terminal that is provided on an outer side of the sealing metal film, wherein   the power supply terminal and the wiring conductor are electrically connected.   
     
     
         7 . The electrical element mounting package according to  claim 6 , wherein
 a groove is provided on the front surface of the substrate to surround the at least one base, and   the sealing metal film is provided inside the groove.   
     
     
         8 . The electrical element mounting package according to  claim 6 , wherein the power supply terminal is provided at a position that is lower than the front surface of the substrate. 
     
     
         9 . The electrical element mounting package according to  claim 6 , wherein
 an outer edge of the power supply terminal includes two linear edges that intersect, and   the two linear edges are positioned to fit an edge of an end surface and an edge of a side surface of the substrate, respectively.   
     
     
         10 . The electrical element mounting package according to  claim 6 , wherein a concave portion is provided in an inner region of the sealing metal film, and the at least one base is arranged on a bottom surface of the concave portion. 
     
     
         11 . The electrical element mounting package according to  claim 6 , wherein the at least one base comprises a plurality of bases that are provided in an inner region of the sealing metal film. 
     
     
         12 . The electrical element mounting package according to  claim 6 , wherein
 the at least one base comprises a composite base including a first base and a second base in an inner region of the sealing metal film, and   a height of the second base is less than a height of the first base in the composite base.   
     
     
         13 . The electrical element mounting package according to  claim 12 , wherein the composite base comprises three sets of composite bases that are provided in the inner region of the sealing metal film. 
     
     
         14 . The electrical element mounting package according to  claim 13 , wherein
 the three sets of the composite bases includes:
 a red composite base that includes a red laser diode first base for mounting a red laser diode; 
 a green composite base that includes a green laser diode first base for mounting a green laser diode; and 
 a blue composite base that includes a blue laser diode first base for mounting a blue laser diode, wherein 
   a smaller one of an interval between the red composite base and the green composite base, and an interval between the red composite base and the blue composite base, is greater than an interval between the green composite base and the blue composite base.   
     
     
         15 . The electrical element mounting package according to  claim 14 , wherein the three sets of the composite bases are arranged such that directions of light emitted from the respective mounted laser diodes are oriented in directions in which the light does not hit the three sets of the composite bases. 
     
     
         16 . An array package comprising
 a plurality of the electrical element mounting packages according to  claim 1 , wherein   the plurality of electrical element mounting packages are connected.   
     
     
         17 . The array package according to  claim 16 , wherein the plurality of electrical element mounting packages are integrated with sintering. 
     
     
         18 . An electrical device comprising:
 the electrical element mounting package according to  claim 1 ; and   an electrical element that is mounted on the mounting surface of the electrical element mounting package.   
     
     
         19 . An electrical device comprising:
 the electrical element mounting package according to  claim 6 ;   an electrical element that is mounted on the mounting surface of the electrical element mounting package; and   a cap that is provided on the sealing metal film, the cap comprising a side window.   
     
     
         20 . An electrical device comprising:
 the array package according to  claim 16 ; and   an electrical element that is mounted on a mounting surface of the array package.